Heart Rate

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  Subject Areas on Research

  • 2015 HRS/EHRA/APHRS/SOLAECE expert consensus statement on optimal implantable cardioverter-defibrillator programming and testing. 
  • 2018 ACC/AHA/HRS guideline on the evaluation and management of patients with bradycardia and cardiac conduction delay: Executive summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines, and the Heart Rhythm Society. 
  • 2018 ACC/AHA/HRS guideline on the evaluation and management of patients with bradycardia and cardiac conduction delay: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. 
  • 2019 AHA/ACC/HRS Focused Update of the 2014 AHA/ACC/HRS Guideline for the Management of Patients With Atrial Fibrillation: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society in Collaboration With the Society of Thoracic Surgeons. 
  • 2021 ISHNE/HRS/EHRA/APHRS Expert Collaborative Statement on mHealth in Arrhythmia Management: Digital Medical Tools for Heart Rhythm Professionals: From the International Society for Holter and Noninvasive Electrocardiology/Heart Rhythm Society/European Heart Rhythm Association/Asia-Pacific Heart Rhythm Society. 
  • A 1-year follow-up of Raynaud's patients treated with behavioral therapy techniques. 
  • A Phase 1 Randomized Study of Single Intravenous Infusions of the Novel Nitroxyl Donor BMS-986231 in Healthy Volunteers. 
  • A Randomized Controlled Trial Investigating the Feasibility and Adherence to an Aerobic Training Program in Healthy Individuals. 
  • A System for Assessment of Canine-Human Interaction during Animal-Assisted Therapies. 
  • A VGF-derived peptide attenuates development of type 2 diabetes via enhancement of islet β-cell survival and function. 
  • A bioenergetics assay for studying the effects of environmental stressors on mitochondrial function in vivo in zebrafish larvae. 
  • A bolus dose of 1.5 mg/kg amrinone effectively improves low cardiac output state following separation from cardiopulmonary bypass in cardiac surgical patients. 
  • A comparison by medicine residents of physical examination versus hand-carried ultrasound for estimation of right atrial pressure. 
  • A comparison of ambulatory blood pressure and heart rate at home and work on work and non-work days. 
  • A comparison of studies on the effects of controlled exposure to fine, coarse and ultrafine ambient particulate matter from a single location. 
  • A comparison of sublingual nifedipine versus nitroglycerin in the treatment of acute angina pectoris. 
  • A comparison of the efficacy and safety of iopamidol-370 and iodixanol-320 in patients undergoing multidetector-row computed tomography. 
  • A controlled trial of acute effects of human exposure to traffic particles on pulmonary oxidative stress and heart rate variability. 
  • A cross-sectional study of exercise performance during the first 2 decades of life after the Fontan operation. 
  • A magnetization-driven gradient echo pulse sequence for the study of myocardial perfusion. 
  • A method for quantitating antifibrillatory effects of drugs after coronary reperfusion in dogs: improved outcome with bretylium. 
  • A model of sequential heart and composite tissue allotransplant in rats. 
  • A multi-method assessment of interoception among sexual trauma survivors. 
  • A new approach for analysis of heart rate variability and QT variability in long-term ECG recording. 
  • A new approach to complicated and noisy physiological waveforms analysis: peripheral venous pressure waveform as an example. 
  • A new modality in nonstress testing: evaluation of beat-to-beat fetal heart rate variability. 
  • A novel application for bolus remifentanil: blunting the hemodynamic response to Mayfield skull clamp placement. 
  • A novel implantable cardiac telemetry system for studying atrial fibrillation 
  • A pilot study of high-intensity interval training in older adults with treatment naïve chronic lymphocytic leukemia. 
  • A portable ventilator with integrated physiologic monitoring for hyperpolarized 129Xe MRI in rodents. 
  • A randomized, double-blind, placebo-controlled, parallel-group, multicenter trial of four doses of tasosartan in patients with essential hypertension. Tasosartan Investigator's Group. 
  • A reassessment of the echocardiogram in mitral stenosis. 
  • A reconsideration of Doppler assessed gradients in suspected aortic stenosis. 
  • A retrospective study exploring the effects of intramuscular aripiprazole on QTc change in agitated medically ill patients. 
  • A robust protocol for regional evaluation of methacholine challenge in mouse models of allergic asthma using hyperpolarized 3He MRI. 
  • A seven-month survival of a calf with an artificial heart designed for human use. 
  • A supervised machine learning semantic segmentation approach for detecting artifacts in plethysmography signals from wearables. 
  • A technique to inject microspheres into the left atrium of awake dogs without thoracotomy. 
  • A template for physical resilience research in older adults: Methods of the PRIME-KNEE study. 
  • A test of generalizability of cardiovascular reactivity using a controlled ambulatory procedure. 
  • A test of reproducibility of blood pressure and heart rate variability using a controlled ambulatory procedure. 
  • ACC/AHA 2002 guideline update for exercise testing: summary article. A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee to Update the 1997 Exercise Testing Guidelines). 
  • ACC/AHA 2002 guideline update for exercise testing: summary article: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee to Update the 1997 Exercise Testing Guidelines). 
  • Ability of epinephrine, but not increased extracellular calcium, to reverse the effects of verapamil on ventricular automaticity in vitro. 
  • Ability of heart rate variability to predict prognosis in patients with advanced congestive heart failure. 
  • Abnormal cardiac Na(+) channel properties and QT heart rate adaptation in neonatal ankyrin(B) knockout mice. 
  • Abnormal iron deposition in renal cells in the rat with chronic angiotensin II administration. 
  • Absence of detectable pharmacological effects after oral administration of isoxsuprine. 
  • Accentuated vagal antagonism of beta-adrenergic effects on ventricular repolarization. Evidence of weaker antagonism in hostile type A men. 
  • Accurate awareness of heartbeat in hypochondriacal and non-hypochondriacal patients. 
  • Achieving a Maximally Tolerated β-Blocker Dose in Heart Failure Patients: Is There Room for Improvement? 
  • Activation in the region of parabrachial nucleus elicits neurogenically mediated coronary vasoconstriction. 
  • Acute Hemodynamic Effects and Tolerability of Phosphodiesterase-1 Inhibition With ITI-214 in Human Systolic Heart Failure. 
  • Acute administration of acyl, but not desacyl ghrelin, decreases blood pressure in healthy humans. 
  • Acute changes in cranial blood flow after cocaine hydrochloride. 
  • Acute changes in heart rate variability in subjects with diabetes following a highway traffic exposure. 
  • Acute effects of ethanol on myocardial blood flow in the nonischemic and ischemic heart. 
  • Acute effects of nicotine and mecamylamine on tobacco withdrawal symptoms, cigarette reward and ad lib smoking. 
  • Acute functional consequences of left ventriculotomy. 
  • Acute hemodynamic changes after rapid intravenous bolus dosing of dexmedetomidine in pediatric heart transplant patients undergoing routine cardiac catheterization. 
  • Acute hemodynamic changes during carotid artery stenting. 
  • Acute tolerance and reversal of the motor control effects of midazolam. 
  • Additional antitachycardia pacing programming strategies further reduce unnecessary implantable cardioverter-defibrillator shocks. 
  • Admission heart rate and in-hospital outcomes in patients hospitalized for heart failure in sinus rhythm and in atrial fibrillation. 
  • Adrenergic modulation of cardiac development in the rat: effects of prenatal exposure to propranolol via continuous maternal infusion. 
  • Aerosol delivery in intubated, mechanically ventilated patients. 
  • Aggravation of exercise performance in patients with anemia by 3% carboxyhemoglobin. 
  • Alpha adrenergic vasoconstriction and nitroglycerin vasodilation of large coronary arteries in the conscious dog. 
  • Alpha-adrenergic receptor subtypes. 
  • Alteration in fluid mechanics in porcine femoral arteries with atheroma development. 
  • Alterations in hemodynamics and left ventricular contractility during carbon dioxide pneumoperitoneum. 
  • Altered airway and cardiac responses in mice lacking G protein-coupled receptor kinase 3. 
  • Ambulatory Heart Rate Variability Monitoring: Comparisons Between the Empatica E4 Wristband and Holter Electrocardiogram. 
  • Ambulatory cardiovascular activity and hostility ratings in women with chronic posttraumatic stress disorder. 
  • Ambulatory cardiovascular activity in Vietnam combat veterans with and without posttraumatic stress disorder. 
  • Ambulatory heart rate reduction after catheter-based renal denervation in hypertensive patients not receiving anti-hypertensive medications: data from SPYRAL HTN-OFF MED, a randomized, sham-controlled, proof-of-concept trial. 
  • Ambulatory monitoring and physical health report in Vietnam veterans with and without chronic posttraumatic stress disorder. 
  • Amrinone in severe congestive heart failure: another look at an intriguing new cardioactive drug. 
  • An adaptive QRS detection algorithm for ultra-long-term ECG recordings. 
  • An analysis of stereotypical motor movements and cardiovascular coupling in individuals on the autism spectrum. 
  • An analysis of the effects of acetylcholine on conduction and refractoriness in the rabbit sinus node. 
  • An evaluation of prosthetic aortic valves using transesophageal echocardiography: the double-envelope technique. 
  • An exploratory study of the combined effects of orally administered methylphenidate and delta-9-tetrahydrocannabinol (THC) on cardiovascular function, subjective effects, and performance in healthy adults. 
  • Analysis of pulsatile pulmonary artery blood flow in the unanesthetized dog. 
  • Anaphylaxis and coronary disease. 
  • Anaylsis of ventricular activation and repolarization from intramural and epicardial potential distributions for ectopic beats in the intact dog. 
  • Anemia in patients with heart failure and preserved systolic function. 
  • Anemia of prematurity: determinants of the erythropoietin response. 
  • Anesthetic induction with fentanyl and intravenous lidocaine for coronary artery surgery. 
  • Ankyrin-B mutation causes type 4 long-QT cardiac arrhythmia and sudden cardiac death. 
  • Anorexia nervosa and second-degree atrioventricular block (Type I). 
  • Antiarrhythmic drug action. Blockade of the inward sodium current. 
  • Antiarrhythmic effects of azimilide in atrial fibrillation: efficacy and dose-response. Azimilide Supraventricular Arrhythmia Program 3 (SVA-3) Investigators. 
  • Antiarrhythmic efficacy of azimilide in patients with atrial fibrillation. Maintenance of sinus rhythm after conversion to sinus rhythm. 
  • Anticipatory and residual effects of an active coping task on pre- and post-stress baselines. 
  • Antihypertensive effectiveness of very low doses of hydrochlorothiazide: results of the PHICOG Trial. 
  • Anxiety and vagal control of heart rate. 
  • Anxiety reduces baroreflex cardiac control in older adults with major depression. 
  • Anxiety, depression, and heart rate variability. 
  • Appearance of atrial rhythm with absent P wave in longstanding atrial fibrillation. 
  • Appropriate behavioral assessment and modification of sexual deviation: a comment on "biosyntonic" therapy. 
  • Arrhythmias Other Than Atrial Fibrillation in Those With an Irregular Pulse Detected With a Smartwatch: Findings From the Apple Heart Study. 
  • Arrhythmias in patients with hypoplastic left heart syndrome. 
  • Arrhythmic Burden and the Risk of Cardiovascular Outcomes in Patients With Paroxysmal Atrial Fibrillation and Cardiac Implanted Electronic Devices. 
  • Arterial blood pressure and heart rate discrepancies between handwritten and computerized anesthesia records. 
  • Arterial compliance in adolescents and young adults receiving chronic hemodialysis. 
  • Arterial-venous nitroglycerin gradient during intravenous infusion in man. 
  • Artificial Intelligence and Machine Learning in Arrhythmias and Cardiac Electrophysiology. 
  • Aspects of rate-related hyperpolarization in feline Purkinje fibers. 
  • Assessment of baroreflex control from beat-to-beat blood pressure and heart rate changes: a validation study. 
  • Assessment of ventricular function in coronary artery disease by means of atrial pacing and exercise. 
  • Association between admission white blood cell count and one-year mortality in patients with acute coronary syndromes. 
  • Association between changes in air pollution levels during the Beijing Olympics and biomarkers of inflammation and thrombosis in healthy young adults. 
  • Association between n-3 fatty acid consumption and ventricular ectopy after myocardial infarction. 
  • Association between resting heart rate, chronotropic index, and long-term outcomes in patients with heart failure receiving β-blocker therapy: data from the HF-ACTION trial. 
  • Association of Early Hemodynamic Profile and the Development of Systolic Dysfunction Following Traumatic Brain Injury. 
  • Association of Early Myocardial Workload and Mortality Following Severe Traumatic Brain Injury. 
  • Association of Resting Heart Rate With Blood Pressure and Incident Hypertension Over 30 Years in Black and White Adults: The CARDIA Study. 
  • Association of a pulsatile blood flow pattern on coronary arteriography and short-term clinical outcomes in acute myocardial infarction. 
  • Association of anxiety with reduced baroreflex cardiac control in patients after acute myocardial infarction. 
  • Association of depressive symptoms with reduced baroreflex cardiac control in coronary artery disease. 
  • Association of heart rate and diabetes among 0.5 million adults in the China Kadoorie biobank: Results from observational and Mendelian randomization analyses. 
  • Association of heart rate and outcomes in a broad spectrum of patients with chronic heart failure: results from the CHARM (Candesartan in Heart Failure: Assessment of Reduction in Mortality and morbidity) program. 
  • Association of intraoperative hypotension and pulmonary hypertension with adverse outcomes after orthotopic liver transplantation. 
  • Atrial natriuretic factor-specific antibody as a tool for physiological studies. Evidence for role of atrial natriuretic factor in aldosterone and renal electrolyte regulation. 
  • Atrial natriuretic factor: pharmacokinetics and cyclic GMP response in relation to biologic effects in severe heart failure. 
  • Atrial natriuretic hormone, vessel dilator, long-acting natriuretic hormone, and kaliuretic hormone decrease the circulating concentrations of total and tree T4 and free T3 with reciprocal increase in TSH. 
  • Atrioventricular and ventricular-to-ventricular programming in patients with cardiac resynchronization therapy: results from ALTITUDE. 
  • Automated J wave detection from digital 12-lead electrocardiogram. 
  • Automated, multiparametric monitoring of respiratory biomarkers and vital signs in clinical and home settings for COVID-19 patients. 
  • Autonomic and behavioral responses of selectively bred hypercholinergic rats to oxotremorine and diisopropyl fluorophosphate. 
  • Autonomic mechanisms of training bradycardia: beta-adrenergic receptors in humans. 
  • Autonomic response during bladder hydrodistention reflects the severity of symptoms in patients with bladder pain syndrome/interstitial cystitis. 
  • Baroreflex stimulation attenuates central but not peripheral inflammation in conscious endotoxemic rats. 
  • Baseline risk of major bleeding in non-ST-segment-elevation myocardial infarction: the CRUSADE (Can Rapid risk stratification of Unstable angina patients Suppress ADverse outcomes with Early implementation of the ACC/AHA Guidelines) Bleeding Score. 
  • Behavior of AV synchrony pacing mode in a leadless pacemaker during variable AV conduction and arrhythmias. 
  • Behavioral and physiological significance of minimum resting metabolic rate in king penguins. 
  • Behavioral assessment of narcotic detoxification fear. 
  • Behavioural and cardiovascular effects of disrupting the angiotensin II type-2 receptor in mice. 
  • Beta adrenergic blockade with propranolol and atenolol in the exercising dog: evidence for beta 2 adrenoceptors in the sinoatrial node. 
  • Beta adrenoceptor recovery after heart failure in the dog. 
  • Beta and alpha adrenergic reactivity elicitable stress study with special reference of electrocardiographic T-wave amplitude. 
  • Beta-adrenoceptor adaptation to endurance training. 
  • Beta1-adrenergic receptors stimulate cardiac contractility and CaMKII activation in vivo and enhance cardiac dysfunction following myocardial infarction. 
  • Beyond fitness tracking: The use of consumer-grade wearable data from normal volunteers in cardiovascular and lipidomics research. 
  • Biobehavioral Responses of Preterm Infants to Conventional and Swaddled Tub Baths: A Randomized Crossover Trial. 
  • Biobehavioral basis of coronary-prone behavior in middle-age men. Part II: Serum cholesterol, the Type A behavior pattern, and hostility as interactive modulators of physiological reactivity. 
  • Biofeedback, autogenic training, and progressive relaxation in the treatment of Raynaud's disease: a comparative study. 
  • Blockade of smoking satisfaction using the peripheral nicotinic antagonist trimethaphan. 
  • Blood levels after sublingual nitroglycerin. 
  • Blood pressure and heart rate effects, weight loss and maintenance during long-term phentermine pharmacotherapy for obesity. 
  • Blood pressure and heart rate over 10 years in the multimodal treatment study of children with ADHD. 
  • Blood pressure reactivity and marital distress in employed women. 
  • Blood-gas and hemodynamic responses to oxygen in acute myocardial infarction. 
  • Blunted cyclic variation of heart rate predicts mortality risk in post-myocardial infarction, end-stage renal disease, and chronic heart failure patients. 
  • Brief Report: Can a Composite Heart Rate Variability Biomarker Shed New Insights About Autism Spectrum Disorder in School-Aged Children? 
  • Bystander accessory pathway during AV node re-entrant tachycardia. 
  • Caffeine affects cardiovascular and neuroendocrine activation at work and home. 
  • Caffeine affects cardiovascular responses to stress. 
  • Caffeine and cardiovascular responses to stress. 
  • Caffeine effects on cardiovascular and neuroendocrine responses to acute psychosocial stress and their relationship to level of habitual caffeine consumption. 
  • Caffeine raises blood pressure at work. 
  • Cardiac Myosin Activator Omecamtiv Mecarbil Improves Left Ventricular Myocardial Deformation in Chronic Heart Failure: The COSMIC-HF Trial. 
  • Cardiac fatigue after prolonged exercise. 
  • Cardiac function in alcohol-associated systemic hypertension. 
  • Cardiac output by impedance cardiography: two alternative methodologies compared with thermodilution. 
  • Cardiac responses to acoustic playback experiments in the captive bottlenose dolphin (Tursiops truncatus). 
  • Cardiac responses to the intrapericardial delivery of metoprolol: targeted delivery compared to intravenous administration. 
  • Cardiac-specific overexpression of angiotensin II AT2 receptor causes attenuated response to AT1 receptor-mediated pressor and chronotropic effects. 
  • Cardio-protective effects of carnitine in streptozotocin-induced diabetic rats. 
  • Cardiogenic shock complicating acute myocardial infarction: predictors of death. GUSTO Investigators. Global Utilization of Streptokinase and Tissue-Plasminogen Activator for Occluded Coronary Arteries. 
  • Cardiopulmonary effects of the novel neuromuscular blocking drug GW280430A (AV430A) in dogs. 
  • Cardiorespiratory coupling is associated with exercise capacity in patients with chronic obstructive pulmonary disease. 
  • Cardiovascular and cortisol responses to experimentally-induced minority stress. 
  • Cardiovascular and emotional responses in women: the role of hostility and harassment. 
  • Cardiovascular and metabolic response of tumour-bearing dogs to whole body hyperthermia. 
  • Cardiovascular and neurophysiologic correlates of sensory intake and rejection. I. Effect of cognitive tasks. 
  • Cardiovascular and psychological reactivity and recovery from harassment in a biracial sample of high and low hostile men and women. 
  • Cardiovascular and respiratory effects of harmine. 
  • Cardiovascular correlates of the psychotherapeutic process. 
  • Cardiovascular effects and safety of dental anesthesia and dental interventions in patients with recent uncomplicated myocardial infarction. 
  • Cardiovascular effects of mental arithmetic in Type A and Type B females. 
  • Cardiovascular events in patients with fabry disease natural history data from the fabry registry. 
  • Cardiovascular phenotype of mice lacking all three subtypes of angiotensin II receptors. 
  • Cardiovascular reactivity assessment: effects of choice of difficulty on laboratory task responses. 
  • Cardiovascular response during a word association test and an interview. 
  • Cardiovascular response to unilateral electroconvulsive therapy. 
  • Cardiovascular responses in the laboratory and in the natural environment: is blood pressure reactivity to laboratory-induced mental stress related to ambulatory blood pressure during everyday life? 
  • Cardiovascular responses to an active coping challenge as predictors of blood pressure patterns 10 to 15 years later. 
  • Cardiovascular responses to behavioral stressors: laboratory-field generalization and inter-task consistency. 
  • Catheter Ablation versus Antiarrhythmic Drug Therapy for Atrial Fibrillation (CABANA) Trial: Study Rationale and Design. 
  • Central hemodynamic effects of an oxytocin receptor antagonist (atosiban) in the isolated, perfused rat heart. 
  • Central nervous system serotonin function and cardiovascular responses to stress. 
  • Cerebral oxidative metabolism is decreased with extreme apnoea in humans; impact of hypercapnia. 
  • Cerebrocortical oxygenation and ventilatory response during sustained hypoxia. 
  • Change in intrathoracic impedance measures during acute decompensated heart failure admission: results from the Diagnostic Data for Discharge in Heart Failure Patients (3D-HF) Pilot Study. 
  • Changing PR interval in a patient with acute inferior myocardial infarction. 
  • Channel specificity in antiarrhythmic drug action. Mechanism of potassium channel block and its role in suppressing and aggravating cardiac arrhythmias. 
  • Characteristics of Vibration that Alter Cardiovascular Parameters in Mice. 
  • Characterization and predictors of first and subsequent inappropriate ICD therapy by heart rate ranges: Result of the MADIT-RIT efficacy analysis. 
  • Childhood socioeconomic status and serotonin transporter gene polymorphism enhance cardiovascular reactivity to mental stress. 
  • Cholinergic stimulation with pyridostigmine modulates a heart-spleen axis after acute myocardial infarction in spontaneous hypertensive rats. 
  • Cigarette smoking blocks caffeine-induced arousal. 
  • Cigarette smoking, ambulatory cardiovascular monitoring, and mood in Vietnam veterans with and without chronic posttraumatic stress disorder. 
  • Circadian Contrasts in Heart Rate Variability Associated With Posttraumatic Stress Disorder Symptoms in a Young Adult Cohort. 
  • Circulatory effects of fenfluramine in obese hypertensive patients. 
  • Citius, altius, fortius (the Olympic motto: swifter, higher, stronger). 
  • Clevidipine in adult cardiac surgical patients: a dose-finding study. 
  • Clinical and quality of life comparison of accelerometer, piezoelectric crystal, and blended sensors in DDDR-paced patients with sinus node dysfunction in the mode selection trial (MOST). 
  • Clinical assessment of beta blockade. 
  • Clinical behavior of paroxysmal atrial tachycardia. 
  • Clinical outcomes in patients on beta-blocker therapy admitted with worsening chronic heart failure. 
  • Clinical pharmacokinetics of pinacidil, a potassium channel opener, in hypertension. 
  • Clinical predictors and hemodynamic consequences of elevated peripheral chemosensitivity in optimally treated men with chronic systolic heart failure. 
  • Clinical responses to ORG 9426 during isoflurane anesthesia. 
  • Clinical significance of exercise-induced bundle branch block. 
  • Clonidine and chlorthalidone (combipres) in hypertension. 
  • Clonidine in congestive heart failure: a vasodilator with negative inotropic effects. 
  • Cognitive coping strategies and blood pressure responses to real-life stress in healthy young men. 
  • Combination ethacizin and ethmozin treatment of resistant ventricular ectopy: theoretical, experimental, and clinical study. 
  • Combined Tc-99m sestamibi first-pass radionuclide angiography and cardiac SPECT imaging during arbutamine infusion delivered by a computerized closed-loop system. 
  • Combined treatment with vessel dilator and kaliuretic hormone in persons with congestive heart failure. 
  • Combining baseline clinical descriptors and real-time response to therapy: the incremental prognostic value of continuous ST-segment monitoring in acute myocardial infarction. 
  • Common genetic variation near the connexin-43 gene is associated with resting heart rate in African Americans: a genome-wide association study of 13,372 participants. 
  • Comparative effects of L-NNA and alkyl esters of L-NNA on pulmonary vasodilator responses to ACh, BK, and SP. 
  • Comparative effects of lidocaine and procainamide on acutely impaired hemodynamics. 
  • Comparative efficacy of dronedarone and amiodarone for the maintenance of sinus rhythm in patients with atrial fibrillation. 
  • Comparing diurnal and nocturnal effects of brinzolamide and timolol on intraocular pressure in patients receiving latanoprost monotherapy. 
  • Comparison in humans of the potency and pharmacokinetics of intravenously injected cocaethylene and cocaine. 
  • Comparison of acute behavioral effects of sustained-release and immediate-release methylphenidate. 
  • Comparison of automated measurements of electrocardiographic intervals and durations by computer-based algorithms of digital electrocardiographs. 
  • Comparison of cardiovascular biofeedback, neuromuscular biofeedback, and meditation in the treatment of borderline essential hypertension. 
  • Comparison of electrocardiogram and intrathoracic electrogram signals for detection of ischemic ST segment changes during normal sinus and ventricular paced rhythms. 
  • Comparison of high- and low-intensity exercise training early after acute myocardial infarction. 
  • Comparison of impedance cardiographic measurements using band and spot electrodes. 
  • Comparison of nifedipine alone with propranolol alone for stable angina pectoris including hemodynamics at rest and during exercise. 
  • Comparison of remifentanil and fentanyl in patients undergoing craniotomy for supratentorial space-occupying lesions. 
  • Comparison of the relation between left ventricular anatomy and QRS duration in patients with cardiomyopathy with versus without left bundle branch block. 
  • Comparisons of ultrafine and fine particles in their associations with biomarkers reflecting physiological pathways. 
  • Compensatory response to hemorrhage in conscious dogs on normal and low salt intake. 
  • Computer-assisted modeling of blood-flow: theoretical evidence for the existence of optimal flow wave patterns. 
  • Concealed mechanical bradycardia: an indication for permanent pacemaker implantation. 
  • Concentrated ambient ultrafine particle exposure induces cardiac changes in young healthy volunteers. 
  • Continuous Monitoring Using a Wearable Device Detects Activity-Induced Heart Rate Changes After Administration of Amphetamine. 
  • Continuous intravenous quinidine infusion for the treatment of atrial fibrillation or flutter: a case series. 
  • Control of myocardial contractile function by the level of beta-adrenergic receptor kinase 1 in gene-targeted mice. 
  • Coping effectively with heart failure (COPE-HF): design and rationale of a telephone-based coping skills intervention. 
  • Coronary input impedance is constant during systole and diastole. 
  • Correlates of systolic and diastolic blood pressure in men 40 to 59 years of age sampled from United States of America and Union of Soviet Socialist Republics Lipid Research Clinics populations. 
  • Correspondence of low mean shear and high harmonic content in the porcine iliac arteries. 
  • Criterion and convergent validity for 4 measures of pain in a pediatric sickle cell disease population. 
  • Cryosurgical denervation of the heart: acute and chronic effects. 
  • Decreased entropy of symbolic heart rate dynamics during daily activity as a predictor of positive head-up tilt test in patients with alleged neurocardiogenic syncope. 
  • Depersonalization after marijuana smoking. 
  • Depletion of pulmonary intravascular macrophages prevents hyperacute pulmonary xenograft dysfunction. 
  • Depression, heart rate variability, and acute myocardial infarction. 
  • Determinants of variable exercise performance among patients with severe left ventricular dysfunction. 
  • Determining the remifentanil dose-response relationship during craniotomies: the importance of intensity of the stimulus at the time of pharmacodynamic evaluation. 
  • Development of heart and respiratory rate percentile curves for hospitalized children. 
  • Development of the linkage of beta-adrenergic receptors to cardiac hypertrophy and heart rate control: neonatal sympathectomy with 6-hydroxydopamine. 
  • Diabetes-induced bradycardia is an intrinsic metabolic defect reversed by carnitine. 
  • Diagnosis-to-Ablation Time and Recurrence of Atrial Fibrillation Following Catheter Ablation: A Systematic Review and Meta-Analysis of Observational Studies. 
  • Dietary nitrate supplementation enhances exercise performance in peripheral arterial disease. 
  • Differential cardiopulmonary monitoring system for artifact-canceled physiological tracking of athletes, workers, and COVID-19 patients. 
  • Differential developmental toxicity of naphthoic acid isomers in medaka (Oryzias latipes) embryos. 
  • Differential effect of HERG blocking agents on cardiac electrical alternans in the guinea pig. 
  • Differential effects of exercise training in men and women with chronic heart failure. 
  • Differential heart rate response to magnetic seizure therapy (MST) relative to electroconvulsive therapy: a nonhuman primate model. 
  • Differentiation of skin incision and laparoscopic trocar insertion via quantifying transient bradycardia measured by electrocardiogram. 
  • Diffusing an Innovation: Clinician Perceptions of Continuous Predictive Analytics Monitoring in Intensive Care. 
  • Digital temperature autoregulation and associated cardiovascular changes. 
  • Digoxin Use and Subsequent Outcomes Among Patients in a Contemporary Atrial Fibrillation Cohort. 
  • Digoxin use in patients with atrial fibrillation and adverse cardiovascular outcomes: a retrospective analysis of the Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation (ROCKET AF). 
  • Diltiazem as an alternative to beta-blocker in coronary artery computed tomography angiography. 
  • Diminishment of respiratory sinus arrhythmia foreshadows doxorubicin-induced cardiomyopathy. 
  • Dipyridamole myocardial SPECT with low heart rate response indicates cardiac autonomic dysfunction in patients with diabetes. 
  • Discharge heart rate and β-blocker dose in patients hospitalized with heart failure: Findings from the OPTIMIZE-HF registry. 
  • Discrimination, dispositions, and cardiovascular responses to stress. 
  • Discriminative-stimulus and participant-rated effects of methylphenidate, bupropion, and triazolam in d-amphetamine-trained humans. 
  • Disruption of Glucagon-Like Peptide 1 Signaling in Sim1 Neurons Reduces Physiological and Behavioral Reactivity to Acute and Chronic Stress. 
  • Disruption of sarcoendoplasmic reticulum calcium ATPase function in Drosophila leads to cardiac dysfunction. 
  • Dissection of a quantitative trait locus for PR interval duration identifies Tnni3k as a novel modulator of cardiac conduction. 
  • Dissociating nicotine and nonnicotine components of cigarette smoking. 
  • Distress and affective dysregulation in patients with borderline personality disorder: a psychophysiological ambulatory monitoring study. 
  • Diurnal and nocturnal effects of brimonidine monotherapy on intraocular pressure. 
  • Do interoceptive accuracy and interoceptive sensibility predict emotion regulation? 
  • Does retinal vascular geometry vary with cardiac cycle? 
  • Dose-effect and concentration-effect relationships of pinacidil and hydrochlorothiazide in hypertension. 
  • Dosing study of remifentanil and propofol for tracheal intubation without the use of muscle relaxants. 
  • Double-blind, placebo-controlled trial of potassium chloride in the treatment of mild hypertension. 
  • Dronedarone in high-risk permanent atrial fibrillation. 
  • Dual inhibition of beta-adrenergic and angiotensin II receptors by a single antagonist: a functional role for receptor-receptor interaction in vivo. 
  • EEG, physiology, and task-related mood fail to resolve across 31 days of smoking abstinence: relations to depressive traits, nicotine exposure, and dependence. 
  • Earbud-based sensor for the assessment of energy expenditure, HR, and VO2max. 
  • Early recovery from heart failure: insights into the pathogenesis of experimental chronic pacing-induced heart failure. 
  • Early reinfarction after fibrinolysis: experience from the global utilization of streptokinase and tissue plasminogen activator (alteplase) for occluded coronary arteries (GUSTO I) and global use of strategies to open occluded coronary arteries (GUSTO III) trials. 
  • Early repolarization associated with ventricular arrhythmias in patients with chronic coronary artery disease. 
  • Echocardiographic findings in fulminant and acute myocarditis. 
  • Editorial: Diagnostic considerations in electromechanical dissociation. 
  • Effect of hyperbaric oxygenation on left ventricular function. 
  • Effect of B-15,000 (Iopamidol), a new nonionic contrast agent, on cardiac function of the isolated rat heart. 
  • Effect of Type A behavior on exercise test outcome in coronary artery disease. 
  • Effect of a stepped-care intervention approach on weight loss in adults: a randomized clinical trial. 
  • Effect of acute standing and prolonged upright activity on left ventricular hemodynamics, systolic and diastolic intervals, and QT-QS2 relationship. 
  • Effect of acutely increased right ventricular afterload on work output from the left ventricle in conscious dogs. Systolic ventricular interaction. 
  • Effect of biventricular pacing during a ventricular sensed event. 
  • Effect of bucindolol on heart failure outcomes and heart rate response in patients with reduced ejection fraction heart failure and atrial fibrillation. 
  • Effect of dietary fat on metabolic adjustments to maximal VO2 and endurance in runners. 
  • Effect of fasting on the VO2-fh relationship in king penguins, Aptenodytes patagonicus. 
  • Effect of health-related stereotypes on physiological responses of hypertensive middle-aged and older men. 
  • Effect of kava extract on vagal cardiac control in generalized anxiety disorder: preliminary findings. 
  • Effect of magnesium sulfate on cardiovascular hemodynamics. 
  • Effect of propranolol as antiadhesive therapy in sickle cell disease. 
  • Effect of rapid pacing and T-wave scanning on the relation between the defibrillation and upper-limit-of-vulnerability dose-response curves. 
  • Effect of rate-dependent left bundle branch block on global and regional left ventricular function. 
  • Effect of verapamil on left ventricular function at rest and during exercise in normal men. 
  • Effect of weight gain during pregnancy on heart rate variability and hypotension during caesarean section under spinal anaesthesia. 
  • Effect on Mortality of Higher Versus Lower β-Blocker (Metoprolol Succinate or Carvedilol) Dose in Patients With Heart Failure. 
  • Effective training for patients with intermittent claudication. 
  • Effectiveness of high rate and delayed detection ICD programming by race: A MADIT-RIT substudy. 
  • Effects of 5HTTLPR on cardiovascular response to an emotional stressor. 
  • Effects of a single intracoronary injection of basic fibroblast growth factor in stable angina pectoris. 
  • Effects of aerobic exercise training on hemodynamic responses during psychosocial stress in normotensive and borderline hypertensive type A men: a preliminary report. 
  • Effects of antihypertensive therapy on cardiovascular response to exercise. 
  • Effects of azimilide on heart rate and ECG conduction intervals during sinus rhythm in patients with a history of atrial fibrillation. 
  • Effects of beta 1-selective and nonselective beta-adrenoceptor blockade during exercise conditioning in healthy adults. 
  • Effects of beta-blockade and exercise on cardiovascular and cognitive functioning. 
  • Effects of cardiac glycosides on atrial contractile dysfunction after short-term atrial fibrillation. 
  • Effects of clenbuterol hydrochloride on pulmonary gas exchange and hemodynamics in anesthetized horses. 
  • Effects of delay in administration of potassium cardioplegia to the isolated rat heart. 
  • Effects of diazoxide and beta adrenergic drugs on spontaneous and induced uterine activity in the pregnant baboon. 
  • Effects of diethylamine/nitric oxide on blood perfusion and oxygenation in the R3230Ac mammary carcinoma. 
  • Effects of different doses of caffeine on exercise responses in young children. 
  • Effects of dose ranging of adenosine infusion on electrocardiographic findings during and after general anesthesia. 
  • Effects of droperidol on depolarization-induced automaticity, maximum upstroke velocity (Vmax) and the kinetics of recovery of Vmax in guinea-pig ventricular myocardium. 
  • Effects of electroacupuncture on gastric motility and heart rate variability in conscious rats. 
  • Effects of endurance training on cholinergic and adrenergic receptors of rat heart. 
  • Effects of exercise and weight loss on mental stress-induced cardiovascular responses in individuals with high blood pressure. 
  • Effects of fenoldopam on renal blood flow and systemic hemodynamics during isoflurane anesthesia. 
  • Effects of growth hormone and IGF-I on cardiac hypertrophy and gene expression in mice. 
  • Effects of head and body cooling on hemodynamics during immersed prone exercise at 1 ATA. 
  • Effects of individual components of multiple behavior changes: the PREMIER trial. 
  • Effects of iopamidol-370 versus iodixanol-320 on coronary contrast, branch depiction, and heart rate variability in dual-source coronary MDCT angiography. 
  • Effects of marijuana on performance of a computerized cognitive-neuromotor test battery. 
  • Effects of mental stress on myocardial ischemia during daily life. 
  • Effects of paroxetine and venlafaxine XR on heart rate variability in depression. 
  • Effects of peroneal nerve stimulation on hypothalamic stimulation-induced ventricular arrhythmias in rabbits. 
  • Effects of physical conditioning on left ventricular ejection fraction in patients with coronary artery disease. 
  • Effects of posttraumatic stress disorder status and covert hostility on cardiovascular responses to relived anger in women with and without PTSD. 
  • Effects of pregabalin on heart rate variability in patients with painful diabetic neuropathy. 
  • Effects of prenatal dexamethasone or terbutaline exposure on development of neural and intrinsic control of heart rate. 
  • Effects of propranolol on cardiovascular and neuroendocrine responses to mental arithmetic in type A men. 
  • Effects of propranolol on the hemodynamic, coronary sinus blood flow and myocardial metabolic response to atrial pacing. 
  • Effects of quitting smoking on EEG activation and attention last for more than 31 days and are more severe with stress, dependence, DRD2 A1 allele, and depressive traits. 
  • Effects of race and marginally elevated blood pressure on responses to stress. 
  • Effects of recruitment maneuvers in patients with acute lung injury and acute respiratory distress syndrome ventilated with high positive end-expiratory pressure. 
  • Effects of remifentanil and alfentanil on the cardiovascular responses to induction of anaesthesia and tracheal intubation in the elderly. 
  • Effects of sample volume location, imaging view, heart rate and age on tricuspid velocimetry in normal subjects. 
  • Effects of standard mitral valve replacement on left ventricular function. 
  • Effects of steroids and angiotensin converting enzyme inhibition on circumferential strain in boys with Duchenne muscular dystrophy: a cross-sectional and longitudinal study utilizing cardiovascular magnetic resonance. 
  • Effects of task incentive on cardiovascular response in type A and type B individuals. 
  • Effects of the interaction between carbogen and nicotinamide on R3230 Ac tumor blood flow in Fischer 344 rats. 
  • Effects of unexpected changes in visual scenes on the human acoustic startle response and prepulse inhibition. 
  • Effects of varying marijuana smoking profile on deposition of tar and absorption of CO and delta-9-THC. 
  • Effects of verapamil on postextrasystolic potentiation. 
  • Efficacy of azimilide for the maintenance of sinus rhythm in patients with paroxysmal atrial fibrillation in the presence and absence of structural heart disease. 
  • Efficacy of continuous real-time blood glucose monitoring during and after prolonged high-intensity cycling exercise: spinning with a continuous glucose monitoring system. 
  • Efficacy of zoniporide, an Na/H exchange ion inhibitor, for reducing perioperative cardiovascular events in vascular surgery patients. 
  • Ejection fraction response to exercise in patients with chest pain and normal coronary arteriograms. 
  • Elective prolongation of atrioventricular conduction by multiple discrete cryolesions: a new technique for the treatment of paroxysmal supraventricular tachycardia. 
  • Electrocardiogram Before Tricyclic Antidepressant Use: Minimal Impact in Pediatric Functional Gastrointestinal Disorders. 
  • Electrocardiogram Characteristics and Their Association With Psychotropic Drugs Among Patients With Schizophrenia. 
  • Electrocardiographic R-wave changes during cardiac surgery. 
  • Emerging topics in electrophysiology. 
  • Emotion Regulation in Borderline Personality Disorder: An Experimental Investigation of the Effects of Instructed Acceptance and Suppression. 
  • Energy expenditure during response-dependent and response-independent food delivery in rats. 
  • Enhanced cardiac function in transgenic mice expressing a Ca(2+)-stimulated adenylyl cyclase. 
  • Enhanced myocardial function in transgenic mice overexpressing the beta 2-adrenergic receptor. 
  • Enhanced receptor-cyclase coupling and augmented catecholamine-stimulated lipolysis in exercising rats. 
  • Enhancement of the force-frequency effect on myocardial contractility by adrenergic stimulation in conscious dogs. 
  • Enhancing standard cardiac rehabilitation with stress management training: background, methods, and design for the enhanced study. 
  • Epidemiology, evaluation, and management of conduction disturbances after transcatheter aortic valve replacement. 
  • Epinephrine proactive retardation of amygdala-kindled epileptogenesis. 
  • Evaluating physiological dynamics via synchrosqueezing: prediction of ventilator weaning. 
  • Evaluation of Wearable Digital Devices in a Phase I Clinical Trial. 
  • Evaluation of a supervised exercise program in a geriatric population. 
  • Evaluation of beta-adrenergic influences on cardiovascular and metabolic adjustments to physical and psychological stress. 
  • Evaluation of early postoperative results after bicaval versus standard cardiac transplantation and review of the literature. 
  • Evaluation of indices of left ventricular contractility and relaxation in evolving canine experimental heart failure. 
  • Evaluation of outpatients experiencing implantable cardioverter defibrillator shocks associated with minimal symptoms. 
  • Evaluation of several methods for computing stroke volume from central aortic pressure. 
  • Evaluation of the clinical pharmacology of nilvadipine in patients with mild to moderate essential hypertension. 
  • Evening heart rate measured at home is associated with visceral obesity and abnormal fat distribution in patients with hypertension. 
  • Evidence for direct local effect of angiotensin in vascular hypertrophy. In vivo gene transfer of angiotensin converting enzyme. 
  • Ex vivo characterization of human anti-porcine hyperacute cardiac rejection. 
  • Exaggerated heart rate oscillations during two meditation techniques. 
  • Examining the Crux of Autonomic Dysfunction in Posttraumatic Stress Disorder: Whether Chronic or Situational Distress Underlies Elevated Heart Rate and Attenuated Heart Rate Variability. 
  • Exercise echocardiographic comparison of pulmonary autograft and aortic homograft replacements for aortic valve disease in adults. 
  • Exercise heart rates in patients with hypertrophic cardiomyopathy. 
  • Exercise responses before and after physical conditioning in patients with severely depressed left ventricular function. 
  • Exercise stress testing in evaluation of aortocoronary bypass surgery. Report of 123 patients. 
  • Exercise training in healthy type A middle-aged men: effects on behavioral and cardiovascular responses. 
  • Exercise-induced functional desensitization of canine cardiac beta-adrenergic receptors. 
  • Experimental studies with a clinical monitor and diagnostic computer. 
  • Exploring the relationship between posttraumatic stress disorder symptoms and momentary heart rate variability. 
  • Exposure to concentrated coarse air pollution particles causes mild cardiopulmonary effects in healthy young adults. 
  • Facial expressions of emotion reveal neuroendocrine and cardiovascular stress responses. 
  • Factors Associated With Large Improvements in Health-Related Quality of Life in Patients With Atrial Fibrillation: Results From ORBIT-AF. 
  • Factors affecting sensitivity and specificity of exercise electrocardiography. Multivariable analysis. 
  • Factors associated with ventricular inducibility in the MADIT-II study population. 
  • Fasting glucose variability in young adulthood and incident diabetes, cardiovascular disease and all-cause mortality. 
  • Faulty cardiac repolarization reserve in alternating hemiplegia of childhood broadens the phenotype. 
  • Feasibility of Mild Traumatic Brain Injury Assessment Based on Cardiovascular Response to Postural Change. 
  • Fetal heart rate during maternal sleep. 
  • Fiber-optic stethoscope: a cardiac monitoring and gating system for magnetic resonance microscopy. 
  • Fixed volume particle trace emission for the analysis of left atrial blood flow using 4D Flow MRI. 
  • Force-frequency effect is a powerful determinant of myocardial contractility in the mouse. 
  • Force-frequency relations in the failing rabbit heart and responses to adrenergic stimulation. 
  • Fractal correlation properties of heart rate dynamics and adverse events in patients with implantable cardioverter-defibrillators. 
  • Frequency of transient reductions in left ventricular ejection fraction at rest in coronary artery disease. 
  • Functional disability in adolescents with orthostatic intolerance and chronic pain. 
  • Functional status, heart rate, and rhythm abnormalities in 521 Fontan patients 6 to 18 years of age. 
  • G protein-coupled receptor kinase 5 regulates airway responses induced by muscarinic receptor activation. 
  • Generalization of cardiovascular response: supportive evidence for the reactivity hypothesis. 
  • Genomewide pharmacogenomic study of metabolic side effects to antipsychotic drugs. 
  • Genomics of Cardiovascular Measures of Autonomic Tone. 
  • Glycogen-branching enzyme deficiency leads to abnormal cardiac development: novel insights into glycogen storage disease IV. 
  • Guidelines for exercise therapy of the elderly after myocardial infarction. 
  • HEART DISEASE. Titin mutations in iPS cells define sarcomere insufficiency as a cause of dilated cardiomyopathy. 
  • Haemodynamic effects, safety, and pharmacokinetics of human stresscopin in heart failure with reduced ejection fraction. 
  • Healthy Aging and Cardiovascular Function: Invasive Hemodynamics During Rest and Exercise in 104 Healthy Volunteers. 
  • Heart Rate or Beta-Blocker Dose? Association With Outcomes in Ambulatory Heart Failure Patients With Systolic Dysfunction: Results From the HF-ACTION Trial. 
  • Heart Rhythm Monitoring Strategies for Cryptogenic Stroke: 2015 Diagnostics and Monitoring Stroke Focus Group Report. 
  • Heart beat classification from single-lead ECG using the synchrosqueezing transform. 
  • Heart rate and energetics of free-ranging king penguins (Aptenodytes patagonicus). 
  • Heart rate and metabolic response to competitive squash in veteran players: identification of risk factors for sudden cardiac death. 
  • Heart rate at hospital discharge in patients with heart failure is associated with mortality and rehospitalization. 
  • Heart rate decrease during crizotinib treatment and potential correlation to clinical response. 
  • Heart rate during spontaneous and induced paroxysmal supraventricular tachycardia. 
  • Heart rate is associated with progression of atrial fibrillation, independent of rhythm. 
  • Heart rate turbulence, depression, and survival after acute myocardial infarction. 
  • Heart rate variability assessment early after acute myocardial infarction. Pathophysiological and prognostic correlates. GUSTO ECG Substudy Investigators. Global Utilization of Streptokinase and TPA for Occluded Arteries. 
  • Heart rate variability in pediatric obstructive sleep apnea. 
  • Heart rate variability is associated with survival in patients with brain metastasis: a preliminary report. 
  • Heart rate: a prognostic factor and therapeutic target in chronic heart failure. The distinct roles of drugs with heart rate-lowering properties. 
  • Heliox improves hemodynamics in mechanically ventilated patients with chronic obstructive pulmonary disease with systolic pressure variations. 
  • Heme oxygenase-1 is upregulated in the kidney of angiotensin II-induced hypertensive rats : possible role in renoprotection. 
  • Hemodynamic changes during dialysis. 
  • Hemodynamic clues to the discrepancy between the angiographic and intraoperative assessment of aortic regurgitation. 
  • Hemodynamic effects of beta-adrenergic blockade at controlled ventricular rates. 
  • Hemodynamic effects of vasorelaxant compounds in mice lacking one, two or all three angiotensin II receptors. 
  • Hemodynamic evaluation of glucagon in symptomatic heart disease. 
  • Hemodynamic evaluation of rate augmentation produced by atrial pacing and isoproterenol in the early postoperative phase of cardiac valve surgery. 
  • Hemodynamic impact of dexmedetomidine administration in 15,656 noncardiac surgical cases. 
  • Hemodynamic stress and experimental aortoiliac atherosclerosis. 
  • Hereditary progressive atrioventricular conduction defect. A new syndrome? 
  • High oxygen prevents fetal lethality due to lack of catecholamines. 
  • High stress responsivity predicts later blood pressure only in combination with positive family history and high life stress. 
  • High-dose dexmedetomidine sedation for pediatric MRI. 
  • High-throughput cardiac safety evaluation and multi-parameter arrhythmia profiling of cardiomyocytes using microelectrode arrays. 
  • Highlights of Heart Rhythm 2005, the Annual Scientific Sessions of the Heart Rhythm Society, May 4-7, 2005, New Orleans, Louisiana. 
  • Hostility and adrenergic receptor responsiveness: evidence of reduced beta-receptor responsiveness in high hostile men. 
  • Hostility predicts magnitude and duration of blood pressure response to anger. 
  • Hostility, social support, and adrenergic receptor responsiveness among African-American and white men and women. 
  • How accurately can we estimate energetic costs in a marine top predator, the king penguin? 
  • Human choline transporter gene variation is associated with corticolimbic reactivity and autonomic-cholinergic function. 
  • Hyperammonemia associated with perinatal asphyxia. 
  • Hypertension in CB57BL/6J mouse model of non-insulin-dependent diabetes mellitus. 
  • Hypertension is critically dependent on the carotid body input in the spontaneously hypertensive rat. 
  • Hyponatremia in congestive heart failure: implications for neurohumoral activation and responses to orthostasis. 
  • Hypotensive effect of clonidine is not mediated by enhanced baroreflex gain in rats. 
  • Hypotensive effect of intracerebroventricular injection of norepinephrine and its modulation by alpha and beta adrenergic blockers in conscious rabbits. 
  • Hypotensive effects of clonidine and chlorthalidone. Controlled clinical trial of drugs administered singly and in combination. 
  • Identification of heart rate-associated loci and their effects on cardiac conduction and rhythm disorders. 
  • Immediate hemodynamic effects of acute coronary occlusion and their modification by anesthesia. 
  • Impact of atrial fibrillation on exercise capacity in heart failure with preserved ejection fraction: a RELAX trial ancillary study. 
  • Impact of diaper change frequency on preterm infants' vital sign stability and skin health: A RCT. 
  • Impact of initial heart rate and systolic blood pressure on relation of age and mortality among fibrinolytic-treated patients with acute ST-elevation myocardial infarction presenting with cardiogenic shock. 
  • Impact of ozone exposure on heart rate variability and stress hormones: A randomized-crossover study. 
  • Impact of rate-modulated pacing on quality of life and exercise capacity--evidence from the Advanced Elements of Pacing Randomized Controlled Trial (ADEPT). 
  • Impaired cardiac function during postnatal hypoxia in rats exposed to nicotine prenatally: implications for perinatal morbidity and mortality, and for sudden infant death syndrome. 
  • Impaired chronotropic and vasodilator reserves limit exercise capacity in patients with heart failure and a preserved ejection fraction. 
  • Implantable cardioverter-defibrillator implementation in acute heart failure syndromes: unanswered questions. 
  • In vivo diffusion-weighted magnetic resonance microscopy of rat spinal cord: effect of ischemia and intrathecal hyperbaric 5% lidocaine. 
  • Incidence of symptomatic atrial fibrillation in patients with paroxysmal supraventricular tachycardia. 
  • Incidence of symptomatic tachycardia in untreated patients with paroxysmal supraventricular tachycardia. 
  • Incomplete relaxation between beats after myocardial hypoxia and ischemia. 
  • Increased Heart Rate Is Associated With Higher Mortality in Patients With Atrial Fibrillation (AF): Results From the Outcomes Registry for Better Informed Treatment of AF (ORBIT-AF). 
  • Indications for pacing in the treatment of bradyarrhythmias. Report of an independent study group. 
  • Individual-Specific, Beat-to-beat Trending of Significant Human Blood Loss: The Compensatory Reserve. 
  • Induction of labor with oral prostaglandin E2. 
  • Inflammation influences vascular remodeling through AT2 receptor expression and signaling. 
  • Influence of a 3.5 day fast on physical performance. 
  • Influence of change in aerobic fitness and weight on prevalence of metabolic syndrome. 
  • Influence of hypothermic cardiopulmonary bypass on atrial natriuretic factor levels. 
  • Influence of nitroglycerin on splanchnic capacity and splanchnic capacity-cardiac output relationship. 
  • Information and states of motor readiness: their effects on the covariation of heart rate and energy expenditure. 
  • Inhibition of nitric oxide synthesis attenuates alcohol consumption in two strains of alcohol-preferring rats. 
  • Inhibition of premature labor: a multicenter comparison of ritodrine and ethanol. 
  • Inhibitory action of a new sympathomimetic amino (DU-21220) on the nongravid uterus. 
  • Inhibitory effect of angiotensin II type 2 receptor on coronary arterial remodeling after aortic banding in mice. 
  • Insufficient reduction in heart rate during hospitalization despite beta-blocker treatment in acute decompensated heart failure: insights from the ASCEND-HF trial. 
  • Interhemispheric synchrony of slow oscillations of cortical blood volume and cytochrome aa3 redox state in unanesthetized rabbits. 
  • Interpretable morphological features for efficient single-lead automatic ventricular ectopy detection. 
  • Interpreting Incidentally Identified Variants in Genes Associated With Catecholaminergic Polymorphic Ventricular Tachycardia in a Large Cohort of Clinical Whole-Exome Genetic Test Referrals. 
  • Intra-arterial reserpine for Raynaud's syndrome. Systemic reactions without therapeutic benefit. 
  • Intrabreath analysis of carbon monoxide uptake during exercise in patients at risk for lung injury. 
  • Intracoronary adenovirus-mediated delivery and overexpression of the beta(2)-adrenergic receptor in the heart : prospects for molecular ventricular assistance. 
  • Intraoperative colloid administration reduces postoperative nausea and vomiting and improves postoperative outcomes compared with crystalloid administration. 
  • Intravenous allopurinol decreases myocardial oxygen consumption and increases mechanical efficiency in dogs with pacing-induced heart failure. 
  • Introduction to the theme issue: Measuring physiology in free-living animals. 
  • Iron insufficiency and hypovitaminosis D in adolescents with chronic fatigue and orthostatic intolerance. 
  • Is QTc-Interval Prolongation an Inherent Feature of Eating Disorders? A Cohort Study. 
  • Is rhythm-control superior to rate-control in patients with atrial fibrillation and diastolic heart failure? 
  • Is there a glycemic threshold for impaired autonomic control? 
  • Isopotential body surface mapping in subjects of all ages: emphasis on low-level potentials with analysis of the method. 
  • Isopotential body surface maps and their relationship to atrial potentials in the dog. 
  • Lactate, oxygen uptake, and cycling performance in triathletes. 
  • Laser Doppler flowmetry: a clinical test of pulpal vitality. 
  • Lead design and initial applications of a new lead for long-term endovascular vagal stimulation. 
  • Left atrial appendage closure: A therapy uniquely suited for specific populations of patients with atrial fibrillation. 
  • Left ventricular ejection fraction after acute coronary occlusion in conscious dogs: relation to the extent and site of myocardial infarction. 
  • Left ventricular myocardial blood flow, metabolism, and effects of treatment with enalapril: further insights into the mechanisms of canine experimental pacing-induced heart failure. 
  • Left ventricular remodelling and disparate changes in contractility and relaxation during the development of and recovery from experimental heart failure. 
  • Linearity of the Frank-Starling relationship in the intact heart: the concept of preload recruitable stroke work. 
  • Locus of control and vasomotor response to sensory processing. 
  • Long-term ambulatory therapy with prazosin versus placebo for chronic heart failure: relation between clinical response and left ventricular function at rest and during exercise. 
  • Long-term cardiovascular effects of mixed amphetamine salts extended release in adults with ADHD. 
  • Long-term effects of exercise on psychological functioning in older men and women. 
  • Long-term mortality in patients with pauses in ventricular electrical activity. 
  • Low educational attainment, John Henryism, and cardiovascular reactivity to and recovery from personally relevant stress. 
  • Low heart rate variability and the effect of depression on post-myocardial infarction mortality. 
  • Low lead one ratio predicts clinical outcomes in left bundle branch block. 
  • Lower heart rate in the early postoperative period does not correlate with long-term outcomes after repair of type A acute aortic dissection. 
  • MRXCAT: Realistic numerical phantoms for cardiovascular magnetic resonance. 
  • Magnitude and duration of cardiovascular responses to anger in Vietnam veterans with and without posttraumatic stress disorder. 
  • Maintenance of sinus rhythm and survival in patients with heart failure and atrial fibrillation. 
  • Maturation of sympathetic neurotransmission in the rat heart. I. Ontogeny of the synaptic vesicle uptake mechanism and correlation with development of synaptic function. Effects of neonatal methadone administration on development of synaptic vesicles. 
  • Maturation of sympathetic neurotransmission in the rat heart. II. Enhanced development of presynaptic and postsynaptic components of noradrenergic synapses as a result of neonatal hyperthyroidism. 
  • Maturation of sympathetic neurotransmission in the rat heart. IV. Effects guanethidine-induced sympathectomy on neonatal development of synaptic vesicles, synaptic terminal function and heart growth. 
  • Maturation of sympathetic neurotransmission in the rat heart. IX. Development of transsynaptic regulation of cardiac adrenergic sensitivity. 
  • Maturation of sympathetic neurotransmission in the rat heart. V. Development of baroreceptor control of sympathetic tone. 
  • Maturation of sympathetic neurotransmission in the rat heart. VII. Suppression of sympathetic responses by dexamethasone. 
  • Maturation of sympathetic neurotransmission in the rat heart. VIII. Slowed development of noradrenergic synapses resulting from hypothyroidism. 
  • Measurement reliability of cardiovascular reactivity change scores: a comparison of intermittent and continuous methods of assessment. 
  • Measurement reliability of highly variable physiological responses to experimentally-manipulated gas fractions. 
  • Mecamylamine combined with nicotine skin patch facilitates smoking cessation beyond nicotine patch treatment alone. 
  • Mecamylamine moderates cue-induced emotional responses in smokers. 
  • Mechanical determinants of myocardial oxygen consumption in conscious dogs. 
  • Mechanism and magnitude of bipolar electrogram directional sensitivity: Characterizing underlying determinants of bipolar amplitude. 
  • Mechanisms underlying cardiovascular defense reaction evoked by dorsal periaqueductal gray stimulation. 
  • Mechanisms underlying hypoxia development in tumors. 
  • Meclizine enhancement of sensorimotor gating in healthy male subjects with high startle responses and low prepulse inhibition. 
  • Membrane sealant Poloxamer P188 protects against isoproterenol induced cardiomyopathy in dystrophin deficient mice. 
  • Memory performance by mild hypertensives following beta-adrenergic blockade. 
  • Meta-analysis: beta-blocker dose, heart rate reduction, and death in patients with heart failure. 
  • Metabolic and ventilatory responses to steady state exercise relative to lactate thresholds. 
  • Micro-CT imaging assessment of dobutamine-induced cardiac stress in rats. 
  • Microvolt T wave alternans inducibility in normal newborn puppies: effects of development. 
  • Midtrimester abortion induced with a single intra-amniotic instillation of prostaglandin F2 alpha. 
  • Minimal difference between aerobic and progressive resistance exercise on metabolic profile and fitness in older adults with diabetes mellitus: a randomised trial. 
  • Mitral flow propagation velocity identifies patients with abnormal diastolic function during coronary artery bypass graft surgery. 
  • Modified ultrafiltration improves cerebral metabolic recovery after circulatory arrest. 
  • Modular multilevel TMS device with wide output range and ultrabrief pulse capability for sound reduction. 
  • Modulating intraventricular conduction through competition of two class 1 antiarrhythmic agents: experience with ethacizin and lidocaine in canine heart. 
  • Modulation of heart rate by temporally patterned vagus nerve stimulation in the anesthetized dog. 
  • Mortality in patients after a recent myocardial infarction: a randomized, placebo-controlled trial of azimilide using heart rate variability for risk stratification. 
  • Mortality reduction in relation to implantable cardioverter defibrillator programming in the Multicenter Automatic Defibrillator Implantation Trial-Reduce Inappropriate Therapy (MADIT-RIT). 
  • Motor preparation aspects of cardiovascular reactivity to psychological challenge. 
  • Multi-scale heart rate dynamics detected by phase-rectified signal averaging predicts mortality after acute myocardial infarction. 
  • Music meets surgery: two sides to the art of "healing". 
  • Myocardial overexpression of adrenergic receptors and receptor kinases. 
  • Natural history of severe decompression sickness after rapid ascent from air saturation in a porcine model. 
  • Neonatal hyperthyroidism causes premature development of baroreceptor-mediated cardiac sympathetic reflexes. 
  • Neuromuscular blocking activity and therapeutic potential of mixed-tetrahydroisoquinolinium halofumarates and halosuccinates in rhesus monkeys. 
  • Neuromuscular blocking agents' differential bronchoconstrictive potential in Guinea pig airways. 
  • Nighttime heart rate and survival in depressed patients post acute myocardial infarction. 
  • Nitroglycerin ointment in acute myocardial infarction. 
  • Nocturnal heart rate and cerebrovascular disease. 
  • Nocturnal heart rate and inflammation. 
  • Nocturnal patterns of heart rate and the risk of mortality after acute myocardial infarction. 
  • Non-invasively quantified changes in left ventricular activation predict outcomes in patients undergoing cardiac resynchronization therapy. 
  • Non-uniform dispersion of the source-sink relationship alters wavefront curvature. 
  • Nonclinical Safety and Toxicokinetics of MnTnBuOE-2-PyP5+ (BMX-001). 
  • Nonemergency use of slow infusions of diazoxide. 
  • Noninvasive assessment of baroreflex control in borderline hypertension. Comparison with the phenylephrine method. 
  • Normal values for single exhalation diffusing capacity and pulmonary capillary blood flow in sitting, supine positions, and during mild exercise. 
  • Novel Imaging Revealing Inner Dynamics for Cardiovascular Waveform Analysis via Unsupervised Manifold Learning. 
  • Obesity and dysrhythmias. 
  • Objective assessment of peritraumatic dissociation: psychophysiological indicators. 
  • Observations on the occurrence of atrial fibrillation in paroxysmal supraventricular tachycardia. 
  • Obstructive sleep apnea is associated with increased rotor burden in patients undergoing focal impulse and rotor modification guided atrial fibrillation ablation. 
  • Occurrence of Symptomatic Hypotension in Patients Undergoing Breast Free Flaps: Is Enhanced Recovery after Surgery to Blame? 
  • Olfactory cue reactivity in nicotine-dependent adult smokers. 
  • On power and sample size calculation for QT studies with recording replicates at given time point. 
  • Operant conditioning: a new theoretical approach in psychosomatic medicine. 
  • Optimal body temperature in transitional extremely low birth weight infants using heart rate and temperature as indicators. 
  • Optimal determination of right ventricular filling dynamics in systemic hypertension. 
  • Optimizing Estimates of Instantaneous Heart Rate from Pulse Wave Signals with the Synchrosqueezing Transform. 
  • Orthostatic intolerance and gastrointestinal motility in adolescents with nausea and abdominal pain. 
  • Outcomes after nonemergent electrical cardioversion for atrial arrhythmias. 
  • Outcomes of catheter ablation of ventricular tachycardia in arrhythmogenic right ventricular dysplasia/cardiomyopathy. 
  • Outpatient use of anticoagulants, rate-controlling drugs, and antiarrhythmic drugs for atrial fibrillation. 
  • Overcoming the Risk-Treatment Paradox for Non-ST-Segment Elevation Acute Coronary Syndromes. 
  • Overexpression of angiotensin AT1 receptor transgene in the mouse myocardium produces a lethal phenotype associated with myocyte hyperplasia and heart block. 
  • Oxygen regulation of tumor perfusion by S-nitrosohemoglobin reveals a pressor activity of nitric oxide. 
  • Oxygen transport by the circulatory system of the green iguana (Iguana iguana) at different body temperatures. 
  • Pannexin 1 channels control the hemodynamic response to hypoxia by regulating O2-sensitive extracellular ATP in blood. 
  • Parental history of hypertension and cardiovascular responses to behavioral stress in young black women. 
  • Paroxysmal hypotension associated with sympathetic withdrawal. A new disorder of autonomic vasomotor regulation. 
  • Pathophysiology and time course of silent myocardial ischaemia during mental stress: clinical, anatomical, and physiological correlates. 
  • Patterns and stability of cardiovascular responses to variations of the cold pressor test. 
  • Patterns of cardiovascular responses to stress as a function of race and parental hypertension in men. 
  • Patterns of management of atrial fibrillation complicating coronary artery bypass grafting: Results from the PRoject of Ex-vivo Vein graft ENgineering via Transfection IV (PREVENT-IV) Trial. 
  • Perceived racism and cardiovascular reactivity and recovery to personally relevant stress. 
  • Pericardial delivery of omega-3 fatty acid: a novel approach to reducing myocardial infarct sizes and arrhythmias. 
  • Peripheral chemoreflex inhibition with low-dose dopamine: new insight into mechanisms of extreme apnea. 
  • Peripheral effects of endurance training in young and old subjects. 
  • Persistent cardiovascular effects with repeated caffeine administration. 
  • Persistent diastolic dysfunction despite complete systolic functional recovery after reperfused acute myocardial infarction demonstrated by tagged magnetic resonance imaging. 
  • Personalized home-based interval exercise training may improve cardiorespiratory fitness in cancer patients preparing to undergo hematopoietic cell transplantation. 
  • Pharmacogenomics study of thiazide diuretics and QT interval in multi-ethnic populations: the cohorts for heart and aging research in genomic epidemiology. 
  • Pharmacokinetic-hemodynamic studies of intravenous nitroglycerin in congestive cardiac failure. 
  • Pharmacokinetics of remifentanil in anesthetized pediatric patients undergoing elective surgery or diagnostic procedures. 
  • Pharmacological and toxicological evaluation of 2-fluoro-3-(2(S)-azetidinylmethoxy)pyridine (2-F-A-85380), a ligand for imaging cerebral nicotinic acetylcholine receptors with positron emission tomography. 
  • Pharmacotherapy in Medicare beneficiaries with atrial fibrillation. 
  • Pharmacotherapy of generalized anxiety disorder. 
  • Phobic anxiety and increased risk of mortality in coronary heart disease. 
  • Physical conditioning and membrane receptors for cardioregulatory hormones. 
  • Physical conditioning augments the fibrinolytic response to venous occlusion in healthy adults. 
  • Physiologic correlates of intraoperative blood transfusion among patients undergoing major gastrointestinal operations. 
  • Physiological and behavioural response patterns at work among hospital nurses. 
  • Physiological arousal among women veterans with and without posttraumatic stress disorder. 
  • Physiological determinants of hyperreactivity to stress in borderline hypertension. 
  • Physiological plasticity of cardiorespiratory function in a eurythermal marine teleost, the longjaw mudsucker, Gillichthys mirabilis. 
  • Physiological responses during ascent to high altitude and the incidence of acute mountain sickness. 
  • Physiological responses to exercise at 47 and 66 ATA. 
  • Plasma concentration time course and pharmacological effects of a standardized oral amiodarone dosing regimen in humans. 
  • Plasminogen activator inhibitor-1 (PAI-1) activity and retinal vascular calibre in type 2 diabetes. 
  • Poor adoption of hemodynamic optimization during major surgery: are we practicing substandard care? 
  • Populations and methods for assessing dyslipoproteinemia and its correlates. The Lipid Research Clinics Program Prevalence Study. 
  • Position as a variable for cardiovascular responses during exercise. 
  • Positive Association Between Nightmares and Heart Rate Response to Loud Tones: Relationship to Parasympathetic Dysfunction in PTSD Nightmares. 
  • Postnatal adaptation of brain function in full-term neonates as assessed by EEG sleep analyses. 
  • Postoperative hypoxemia: common, undetected, and unsuspected after bariatric surgery. 
  • Posttraumatic stress disorder diagnosis is associated with reduced parasympathetic activity during sleep in US veterans and military service members of the Iraq and Afghanistan wars. 
  • Posttraumatic stress, heart rate variability, and the mediating role of behavioral health risks. 
  • Postural exercise abnormalities in symptomatic patients with mitral valve prolapse. 
  • Potential additional indicators for pacemaker requirement in isolated congenital atrioventricular block. 
  • Preclinical pharmacology of GW280430A (AV430A) in the rhesus monkey and in the cat: a comparison with mivacurium. 
  • Predicting maximal HR in heart failure patients on β-blockade therapy. 
  • Predicting peak oxygen uptake among older patients with chronic illness. 
  • Prediction of subsequent ischemic heart disease using serial resting electrocardiograms. 
  • Predictors and significance of atrial rhythm before and six months after percutaneous balloon mitral commissurotomy. 
  • Predictors of 30-day mortality in the era of reperfusion for acute myocardial infarction. Results from an international trial of 41,021 patients. GUSTO-I Investigators. 
  • Predictors of appropriate implantable defibrillator therapies in patients with arrhythmogenic right ventricular dysplasia. 
  • Predictors of death and reinfarction at 30 days after primary angioplasty: the GUSTO IIb and RAPPORT trials. 
  • Prenatal exposure to propranolol via continuous maternal infusion: effects on physiological and biochemical processes mediated by beta adrenergic receptors in fetal and neonatal rat lung. 
  • Prenatal nicotine exposure impairs beta-adrenergic function: persistent chronotropic subsensitivity despite recovery from deficits in receptor binding. 
  • Preservation of myocardial beta-adrenergic receptor signaling delays the development of heart failure after myocardial infarction. 
  • Preservation of myocardial high-energy phosphates with vagal stimulation and hypothermic cardioplegia. 
  • Pressure and volume changes of the left ventricle in acute pericardial tamponade. 
  • Pressure-flow studies in man. An evaluation of the duration of the phases of systole. 
  • Presynaptic and postsynaptic contributions to ontogeny of sympathetic control of heart rate in the pre-weanling rat. 
  • Proceedings from Heart Rhythm Society's emerging technologies forum, Boston, MA, May 12, 2015. 
  • Processing of arterial pressure waves with a digital computer. 
  • Prognostic importance of temporal changes in resting heart rate in heart failure patients: an analysis of the CHARM program. 
  • Prognostic significance of nonsustained ventricular tachycardia identified postoperatively after coronary artery bypass surgery in patients with left ventricular dysfunction. 
  • Progressive cardiac dysfunction and fibrosis in the cardiomyopathic hamster and effects of growth hormone and angiotensin-converting enzyme inhibition. 
  • Prolonged exercise alters cardiac chronotropic responsiveness in endurance athletes. 
  • Psychiatric disorders in medical outpatients complaining of palpitations. 
  • Psychological preparation for endoscopy. Physiological and behavioral changes in patients with differing coping styles for stress. 
  • Psychophysiological interactions between caffeine and nicotine. 
  • Pulmonary vascular impedance analysis of adaptation to chronically elevated blood flow in the awake dog. 
  • Pulse Width Affects Scalp Sensation of Transcranial Magnetic Stimulation. 
  • Pump speed modulations and sub-maximal exercise tolerance in left ventricular assist device recipients: A double-blind, randomized trial. 
  • QRS duration in patients hospitalized for worsening heart failure. 
  • Quantitation of vascular outflow by measurement of impedance. 
  • Quantitative analysis of QRS detection algorithms based on the first derivative of the ECG. 
  • RR-interval irregularity precedes ventricular fibrillation in ST elevation acute myocardial infarction. 
  • Race and sex differences in cardiovascular α-adrenergic and β-adrenergic receptor responsiveness in men and women with high blood pressure. 
  • Race, borderline hypertension, and hemodynamic responses to behavioral stress before and after beta-adrenergic blockade. 
  • Racial differences in cardiovascular reactivity to mental arithmetic. 
  • Racial differences in the association between heart rate variability and left ventricular mass. 
  • Radiofrequency catheter ablation of supraventricular tachycardia substrates after mustard and senning operations for d-transposition of the great arteries. 
  • Randomized Clinical Trials of Catheter Ablation of Atrial Fibrillation in Congestive Heart Failure: Knowns and Unmet Needs. 
  • Randomized, double-blind, placebo-controlled study to evaluate the safety and efficacy of a single oral dose of vanoxerine for the conversion of subjects with recent onset atrial fibrillation or flutter to normal sinus rhythm: RESTORE SR. 
  • Ranolazine reduces atrial fibrillatory wave frequency. 
  • Rapid ventricular pacing in the dog: pathophysiologic studies of heart failure. 
  • Rapid ventricular pacing of dogs to heart failure: biochemical and physiological studies. 
  • Rate Control versus Rhythm Control for Atrial Fibrillation after Cardiac Surgery. 
  • Rate control in patients with chronic atrial fibrillation. 
  • Rate pressure product and the components of heart rate and systolic blood pressure in hospitalized heart failure patients with preserved ejection fraction: Insights from ASCEND-HF. 
  • Rate versus rhythm control and outcomes in patients with atrial fibrillation and chronic kidney disease: data from the GUSTO-III Trial. 
  • Rate- and rhythm-control therapies in patients with atrial fibrillation: a systematic review. 
  • Rate-related left bundle branch block with chest pain and normal coronary arteriograms treated by exercise training. 
  • Rationale and design of the phase 2b clinical trials to study the effects of the partial adenosine A1-receptor agonist neladenoson bialanate in patients with chronic heart failure with reduced (PANTHEON) and preserved (PANACHE) ejection fraction. 
  • Re-evaluating the significance of the dive response during voluntary surface apneas in the bottlenose dolphin, Tursiops truncatus. 
  • Reassessing the role of antitachycardia pacing in fast ventricular arrhythmias in primary prevention implantable cardioverter-defibrillator recipients: Results from MADIT-RIT. 
  • Recent Advances in Lesion Formation for Catheter Ablation of Atrial Fibrillation. 
  • Recovery of attenuated baroreflex sensitivity in conscious dogs after reversal of pacing induced heart failure. 
  • Reduced beta 2-receptor mediated vasodilation in African Americans. 
  • Reduced left ventricular filling following blood volume extraction does not result in compensatory augmentation of cardiac mechanics. 
  • Reduction in Inappropriate ICD Therapy in MADIT-RIT Patients Without History of Atrial Tachyarrhythmia. 
  • Reduction in inappropriate therapy and mortality through ICD programming. 
  • Reduction of pentylenetetrazole-induced seizure activity in awake rats by seizure-triggered trigeminal nerve stimulation. 
  • Regional cerebral blood flow and depersonalization after tetrahydrocannabinol administration. 
  • Regional cerebral blood flow in humans at high altitude: gradual ascent and 2 wk at 5,050 m. 
  • Regulation of stroke volume during submaximal and maximal upright exercise in normal man. 
  • Relation between reversal of diastolic creep and recovery of systolic function after ischemic myocardial injury in conscious dogs. 
  • Relation of Elevated Heart Rate in Patients With Heart Failure With Reduced Ejection Fraction to One-Year Outcomes and Costs. 
  • Relation of cardiovascular responses to mental stress and cardiac vagal activity in coronary artery disease. 
  • Relation of heart rate with cardiovascular disease in normal-weight individuals: the Chicago Heart Association Detection Project in Industry. 
  • Relationship Between Electrical and Mechanical Dyssynchrony and Outcomes Among Patients Undergoing Cardiac Resynchronization Therapy. 
  • Relationship between extracellular T-wave height, T-wave alternans amplitude, and tissue action potential alternans: a 1-dimensional computer modeling study. 
  • Relationship between regional myocardial procainamide concentration and regional myocardial blood flow during ischemia in the dog. 
  • Relationship of job strain to standard coronary risk factors and psychological characteristics in women and men of the Family Heart Study. 
  • Relationship of systemic endothelial function and peripheral arterial stiffness with diabetic retinopathy. 
  • Relationships Between Baseline Q Waves, Time From Symptom Onset, and Clinical Outcomes in ST-Segment-Elevation Myocardial Infarction Patients: Insights From the Vital Heart Response Registry. 
  • Relationships among age, sex, the type A behavior pattern, and cardiovascular reactivity. 
  • Relationships of cardiac, pulmonary, and muscle reserves and frailty to exercise capacity in older women. 
  • Renal denervation attenuates NADPH oxidase-mediated oxidative stress and hypertension in rats with hydronephrosis. 
  • Reperfusion injury is reduced in skeletal muscle by inhibition of inducible nitric oxide synthase. 
  • Reply: Potential Mechanisms to Improve Heart Failure Clinical Trial Publication Rates. 
  • Respiratory function during pressure support ventilation. 
  • Respiratory physiology of house sparrows in relation to high-altitude flight. 
  • Respiratory sinus arrhythmia and cardiovascular responses to stress. 
  • Response of atrial natriuretic factor to acute and chronic increases of atrial pressures in experimental heart failure in dogs. Role of changes in heart rate, atrial dimension, and cardiac tissue concentration. 
  • Response to cardiac sympathetic activation in transgenic mice overexpressing beta 2-adrenergic receptor. 
  • Resting Heart Rate and Long-term Outcomes Among the African American Population: Insights From the Jackson Heart Study. 
  • Resting heart rate in middle age and diabetes development in older age. 
  • Results from the IQ-CSRC prospective study support replacement of the thorough QT study by QT assessment in the early clinical phase. 
  • Results of the FUEL Trial. 
  • Rhythm Control Versus Rate Control in Patients With Atrial Fibrillation and Heart Failure With Preserved Ejection Fraction: Insights From Get With The Guidelines-Heart Failure. 
  • Rhythm control in atrial fibrillation. 
  • Rhythm control in heart failure patients with atrial fibrillation: contemporary challenges including the role of ablation. 
  • Rhythm control versus rate control for atrial fibrillation and heart failure. 
  • Right and left ventricular diastolic pressure-volume relations: a comprehensive review. 
  • Risk stratification after acute myocardial infarction by amplitude-frequency mapping of cyclic variation of heart rate. 
  • Role for thromboxane receptors in angiotensin-II-induced hypertension. 
  • Role of nicotine dose and sensory cues in the regulation of smoke intake. 
  • Role of right ventricular and pulmonary functional abnormalities in limiting exercise capacity in adults with congenital heart disease. 
  • Running kinematics and shock absorption do not change after brief exhaustive running. 
  • SCD-HeFT: Use of R-R interval statistics for long-term risk stratification for arrhythmic sudden cardiac death. 
  • ST segment shift in unstable angina: pathophysiology and association with coronary anatomy and hospital outcome. 
  • Safety and Tolerability of Neladenoson Bialanate, a Novel Oral Partial Adenosine A1 Receptor Agonist, in Patients With Chronic Heart Failure. 
  • Sarcoidosis with incomplete bilateral bundle branch block pattern disappearing following steroid therapy: an electrophysiological study. 
  • Scaling of heart rate with breathing frequency and body mass in cetaceans. 
  • Selection of thrombolytic therapy for individual patients: development of a clinical model. GUSTO-I Investigators. 
  • Sensitization to the cardiovascular but not subject-rated effects of oral cocaine in humans. 
  • Serum lipids, neuroendocrine and cardiovascular responses to stress in healthy Type A men. 
  • Serum lipids, neuroendocrine, and cardiovascular responses to stress in men and women with mild hypertension. 
  • Severe theophylline toxicity. Role of conservative measures, antiarrhythmic agents, and charcoal hemoperfusion. 
  • Sex-related differences in the normal cardiac response to upright exercise. 
  • Short-term effects of fine particulate matter and ozone on the cardiac conduction system in patients undergoing cardiac catheterization. 
  • Should His Bundle Pacing Be Preferred over Cardiac Resynchronization Therapy Following Atrioventricular Junction Ablation? 
  • Should rhythm control be preferred in younger atrial fibrillation patients? 
  • Sildenafil exposure and hemodynamic effect after Fontan surgery. 
  • Simulated microgravity produces attenuated baroreflex-mediated pressor, chronotropic, and inotropic responses in mice. 
  • Single dose of glutamine enhances myocardial tissue metabolism, glutathione content, and improves myocardial function after ischemia-reperfusion injury. 
  • Situational determinants of cardiovascular and emotional reactivity in high and low hostile men. 
  • Sixty-four-slice multidetector computed tomography: the future of ED cardiac care. 
  • Skeletal muscle beta-adrenergic receptors: variations due to fiber type and training. 
  • Sleep apnea symptoms and risk of temporomandibular disorder: OPPERA cohort. 
  • Sleep-wake classification via quantifying heart rate variability by convolutional neural network. 
  • Smartphone 12-lead ECG-Exciting but must be handled with care. 
  • Social information processing and cardiac predictors of adolescent antisocial behavior. 
  • Social support in social interaction: a moderator of cardiovascular reactivity. 
  • Some effects of imidocarb in goats. 
  • Sources of work-related acute fatigue in United States hospital nurses. 
  • Spinal micturition reflex mediated by afferents in the deep perineal nerve. 
  • Stability of cardiovascular reactivity to laboratory stressors: a 2 1/2 yr follow-up. 
  • Stability over time of circadian rhythm of variability of heart rate in patients with stable coronary artery disease. 
  • Statistical analysis methods for QT/QTc prolongation. 
  • Statistical assessment of QT/QTc prolongation based on maximum of correlated normal random variables. 
  • Stimulus-specific patterns of cardiovascular reactivity in type A and B subjects: evidence for enhanced vagal reactivity in type B. 
  • Strength-interval curves in canine myocardium at very short cycle lengths. 
  • Stress-induced changes in the expression of monocytic beta2-integrins: the impact of arousal of negative affect and adrenergic responses to the Anger Recall Interview. 
  • Strict Versus Lenient Versus Poor Rate Control Among Patients With Atrial Fibrillation and Heart Failure (from the Get With The Guidelines - Heart Failure Program). 
  • Stroke in patients with acute coronary syndromes: incidence and outcomes in the platelet glycoprotein IIb/IIIa in unstable angina. Receptor suppression using integrilin therapy (PURSUIT) trial. The PURSUIT Investigators. 
  • Stroma-free human hemoglobin A decreases R3230Ac rat mammary adenocarcinoma blood flow and oxygen partial pressure. 
  • Strong and specific associations between cardiovascular risk factors and white matter micro- and macrostructure in healthy aging. 
  • Suicidal Behavior and Problems with Emotion Regulation. 
  • Sustained high levels of physical activity lead to improved performance among "Race Across the USA" athletes. 
  • Sympathectomy in the treatment of angina and arrhythmias. 
  • Synergistic effects of exposure to concentrated ambient fine pollution particles and nitrogen dioxide in humans. 
  • Systolic time interval characteristics in children with Duchenne's progressive muscular dystrophy. 
  • Tar, CO and delta 9THC delivery from the 1st and 2nd halves of a marijuana cigarette. 
  • Temporal complexity of repolarization and mortality in patients with implantable cardioverter defibrillators. 
  • Temporal trends in risk profiles among patients hospitalized for heart failure. 
  • Temporary balloon occlusion of the inferior vena cava for immediate reversal of acute pulmonary edema. 
  • Ten-year stability of cardiovascular responses to laboratory stressors. 
  • The Pathophysiology, Diagnosis, and Management of Wolff-Parkinson-White Syndrome in the Neonate. 
  • The acute hypoxic ventilatory response: testing the adaptive significance in human populations. 
  • The arrhythmogenicity of theophylline. A multivariate analysis of clinical determinants. 
  • The association of admission heart rate and in-hospital cardiovascular events in patients with non-ST-segment elevation acute coronary syndromes: results from 135 164 patients in the CRUSADE quality improvement initiative. 
  • The challenges with chronic angina. 
  • The clinical implications of cumulative right ventricular pacing in the multicenter automatic defibrillator trial II. 
  • The combination of theophylline and endothelin receptor antagonism improves exercise performance of rats under simulated high altitude. 
  • The comparative effects of drive and test stimulus intensity on myocardial excitability and vulnerability. 
  • The correlation between pulse diagnosis and constitution identification in traditional Chinese medicine. 
  • The design of a real-time computer system for examining the electrical activity of the heart. 
  • The effect of berotec (Th 1165a) on spontaneous and induced uterine activity in the pregnant baboon. 
  • The effect of bretylium tosylate on ventricular function. 
  • The effect of epidural clonidine on perioperative cytokine response, postoperative pain, and bowel function in patients undergoing colorectal surgery. 
  • The effect of hypoxia on baroreflexes and pressor sensitivity in sleep apnea and hypertension. 
  • The effect of intra-aortic balloon counterpulsation on left ventricular functional recovery early after acute myocardial infarction: a randomized experimental magnetic resonance imaging study. 
  • The effect of pentobarbital anesthesia on the autonomic nervous system control of heart rate during baroreceptor activation. 
  • The effects of dopamine on myocardial functional recovery after reversible ischemic injury. 
  • The effects of perceived discrimination on ambulatory blood pressure and affective responses to interpersonal stress modeled over 24 hours. 
  • The effects of rapacuronium on histamine release and hemodynamics in adult patients undergoing general anesthesia. 
  • The efficacy of azimilide in the treatment of atrial fibrillation in the presence of left ventricular systolic dysfunction: results from the Azimilide Postinfarct Survival Evaluation (ALIVE) trial. 
  • The end-systolic pressure-volume relationship in conscious dogs. 
  • The generalizability of cardiovascular responses across settings. 
  • The hemodynamic and renal effects of sevoflurane and isoflurane in patients with coronary artery disease and chronic hypertension. Sevoflurane Ischemia Study Group. 
  • The independently fractal nature of respiration and heart rate during exercise under normobaric and hyperbaric conditions. 
  • The influence of hemoconcentration on hypoxic pulmonary vasoconstriction in acute, prolonged, and lifelong hypoxemia. 
  • The influence of speed, grade and mass during simulated off road bicycling. 
  • The inhibited power motive, type A behavior, and patterns of cardiovascular response during the structured interview and Thematic Apperception Test. 
  • The inhibitory effect of diazoxide in normal term labor. 
  • The multi-dimensional nature of active coping: differential effects of effort and enhanced control on cardiovascular reactivity. 
  • The physiologic effects of positioning premature infants in car seats. 
  • The prognostic significance of heart rate in patients hospitalized for heart failure with reduced ejection fraction in sinus rhythm: insights from the EVEREST (Efficacy of Vasopressin Antagonism in Heart Failure: Outcome Study With Tolvaptan) trial. 
  • The rational clinical examination. Is this patient hypovolemic? 
  • The relationships between dimensions of hostility and cardiovascular reactivity as a function of task characteristics. 
  • The relaxant action of ritodrine, a sympathomimetic amine, on the uterus during term labor. 
  • The restitution portrait: a new method for investigating rate-dependent restitution. 
  • The role of atrial fibrillation catheter ablation in patients with heart failure. 
  • The type A behavior pattern, physical fitness, and psychophysiological reactivity. 
  • The ultraendurance triathlete: a physiological profile. 
  • The use of bovine hemoglobin glutamer-250 (Hemopure) in surgical patients: results of a multicenter, randomized, single-blinded trial. 
  • The use of radionuclide angiography in the diagnosis of coronary artery disease--a logistic regression analysis. 
  • The value of early out-patient cardiac exercise programmes for the elderly in comparison with other selected age groups. 
  • Time to treatment and the impact of a physician on prehospital management of acute ST elevation myocardial infarction: insights from the ASSENT-3 PLUS trial. 
  • Time-of-day effect on cardiac responses to progressive exercise. 
  • Time-varying covariates in models of human mortality and aging: multidimensional generalizations of the Gompertz. 
  • Time-varying spectral analysis revealing differential effects of sevoflurane anaesthesia: non-rhythmic-to-rhythmic ratio. 
  • Toxic actions of dinoseb in medaka (Oryzias latipes) embryos as determined by in vivo 31P NMR, HPLC-UV and 1H NMR metabolomics. 
  • Toxic effects of hypoxia on neonatal cardiac function in the rat: alpha-adrenergic mechanisms. 
  • Trajectories of maternal depression over 7 years: relations with child psychophysiology and behavior and role of contextual risks. 
  • Transdermal administration of nicotine. 
  • Transdermal nicotine reduces cigarette craving and nicotine preference. 
  • Trauma and Autonomic Dysregulation: Episodic-Versus Systemic-Negative Affect Underlying Cardiovascular Risk in Posttraumatic Stress Disorder. 
  • Trauma reactivity, avoidant coping, and PTSD symptoms: a moderating relationship? 
  • Treatment of anxiety in patients with coronary heart disease: Rationale and design of the UNderstanding the benefits of exercise and escitalopram in anxious patients WIth coroNary heart Disease (UNWIND) randomized clinical trial. 
  • Treatment of paroxysmal supraventricular tachycardia with oral diltiazem. 
  • Treatment-Related Changes in Left Atrial Structure in Atrial Fibrillation: Findings From the CABANA Imaging Substudy. 
  • Twenty-Four-Hour Cardiovascular Effects of Electronic Cigarettes Compared With Cigarette Smoking in Dual Users. 
  • Two-year trends in physical performance following supervised exercise among community-dwelling older veterans. 
  • Two-year trends in physical performance following supervised exercise among community-dwelling older veterans. 
  • Type A behavior, family history of hypertension, and cardiovascular responsivity among black women. 
  • Ultrasound assessment of left ventricular function following aortocoronary saphenous vein bypass grafting. 
  • Use of Mobile Health Apps and Wearable Technology to Assess Changes and Predict Pain During Treatment of Acute Pain in Sickle Cell Disease: Feasibility Study. 
  • Use of heart rate monitors by endurance athletes: lessons from triathletes. 
  • Usefulness of Pulse Amplitude Changes During the Valsalva Maneuver Measured Using Finger Photoplethysmography to Identify Elevated Pulmonary Capillary Wedge Pressure in Patients With Heart Failure. 
  • Usefulness of exercise electrocardiography and thallium scintigraphy in unstable angina pectoris in predicting the extent and severity of coronary artery disease. 
  • Utilization of hospice and predicted mortality risk among older patients hospitalized with heart failure: findings from GWTG-HF. 
  • Validation of three-dimensional conduction models using experimental mapping: are we getting closer? 
  • Variable Pulse Duration From a New Holmium:YAG Laser: The Effect on Stone Comminution, Fiber Tip Degradation, and Retropulsion in a Dusting Model. 
  • Vasodilator administration in the presence of beta-adrenergic blockade. 
  • Vasodilator monotherapy in the treatment of hypertension: comparative efficacy and safety of pinacidil, a potassium channel opener, and prazosin. 
  • Ventilation studied with circulatory occlusion during two intensities of exercise. 
  • Ventilation-perfusion inequality in normal humans during exercise at sea level and simulated altitude. 
  • Ventilatory and metabolic effects of hypercapnia in conscious rats: AVP V1 receptor block. 
  • Ventilatory control studied with circulatory occlusion during exercise recovery. 
  • Very-long-chain acyl-coenzyme a dehydrogenase deficiency in mice. 
  • Watchman implantation in a patient with left atrial appendage thrombus. 
  • Wavelet leader multifractal analysis of heart rate variability in atrial fibrillation. 
  • Wearable sensors enable personalized predictions of clinical laboratory measurements. 
  • What is physiologging? Introduction to the theme issue, part 2. 
  • When Interpolation-Induced Reflection Artifact Meets Time-Frequency Analysis. 
  • When the body and appendage of the left atrium disagree: "Focal" atrial fibrillation-implications for atrial thrombus formation and risk of thromboembolism. 
  • Why are (only) some infarcted hearts arrhythmogenic? 
  • Why is depression bad for the failing heart? A review of the mechanistic relationship between depression and heart failure. 
  • [Nphe1]nociceptin(1-13)-NH2 antagonizes nociceptin-induced hypotension, bradycardia, and hindquarters vasodilation in the anesthetized rat. 
  • β1-Blockade increases maximal apnea duration in elite breath-hold divers. 
• 

  Keywords of People

  • Bennett, Vann, George Barth Geller Distinguished Professor of Molecular Biology, Duke Cancer Institute
  • Curtis, Lesley H., Professor in Population Health Sciences, Medicine, General Internal Medicine
  • Dodge, Kenneth A., William McDougall Distinguished Professor of Public Policy Studies, Duke Science & Society
  • Johnson, G. Allan, Charles E. Putman University Distinguished Professor of Radiology, Biomedical Engineering
  • Laskowitz, Daniel Todd, Professor of Neurology, Duke Science & Society
  • Milano, Carmelo Alessio, Joseph W. and Dorothy W. Beard Distinguished Professor of Experimental Surgery, Surgery, Cardiovascular and Thoracic Surgery
  • Neu, Wanda Krassowska, Professor Emeritus of Biomedical Engineering, Biomedical Engineering
  • O'Connor, Christopher Michael, Richard Sean Stack, M.D. Distinguished Professor, Medicine, Clinical Pharmacology
  • Palmer, Gregory M., Associate Professor of Radiation Oncology, Radiation Oncology
  • Pitt, Geoffrey Stuart, Adjunct Professor in the Department of Medicine, Medicine, Cardiology