Journal ArticleJAMA Cardiol · December 1, 2023
IMPORTANCE: Complete hardware removal is a class I recommendation for cardiovascular implantable electronic device (CIED) infection, but practice patterns and outcomes remain unknown. OBJECTIVE: To quantify the number of Medicare patients with CIED infecti ...
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Journal ArticleCirc Arrhythm Electrophysiol · June 2023
BACKGROUND: Rotational cutting tools are increasingly used in transvenous lead extraction. There are limited data on their safety and efficacy, particularly when used adjunctively for stalled progression. The aim of this study was to evaluate the utilizati ...
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Journal ArticleJ Cardiovasc Electrophysiol · March 2022
BACKGROUND: Cardiac implanted electronic device (CIED) pocket and systemic infection remain common complications with traditional CIEDs and are associated with high morbidity and mortality. Leadless pacemakers may be an attractive pacing alternative for ma ...
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Journal ArticleHeart Rhythm O2 · February 2022
BACKGROUND: Procedural and clinical outcomes of patients undergoing extraction or removal of azygous coils are not well characterized. OBJECTIVE: Evaluate outcomes in patients who undergo device extraction with an azygous coil in situ. METHODS: Patients un ...
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Journal ArticleHeart Rhythm O2 · October 2021
BACKGROUND: Atrioventricular (AV)-synchronous single-chamber leadless pacing using a mechanical atrial sensing algorithm produced high AV synchrony in clinical trials, but clinical practice experience with these devices has not yet been described. OBJECTIV ...
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Journal ArticlePacing Clin Electrophysiol · September 2020
BACKGROUND: Cardiac amyloidosis is a progressive infiltrative disease involving deposition of amyloid fibrils in the myocardium and cardiac conduction system that frequently manifests with heart failure (HF) and arrhythmias, most frequently atrial fibrilla ...
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Journal ArticleJACC Clin Electrophysiol · September 2020
OBJECTIVES: This study sought to determine the indications, characteristics, and outcomes of cardiovascular implantable electronic device (CIED) surgery in patients with LVAD. BACKGROUND: Many patients with a left ventricular assist device (LVAD) will requ ...
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Journal ArticleHeart Rhythm O2 · August 2020
BACKGROUND: Diabetes mellitus (DM) is an independent risk factor for atrial fibrillation (AF). Few studies have compared clinical outcomes after catheter ablation between patients with and those without DM. OBJECTIVE: The purpose of this study was to compa ...
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Journal ArticleJ Cardiovasc Electrophysiol · July 2020
Due to the growing number of patients treated with cardiac implantable electronic devices (CIEDs) there is an increased need for lead management, evaluation, and extraction. While CIED lead extraction has many indications, a consistent approach to preproce ...
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Journal ArticleJACC Clin Electrophysiol · June 2020
OBJECTIVES: The goal of this study was to assess the utility of transvenous lead extraction for cardiovascular implantable electronic device (CIED) infection in patients with a left ventricular assist device (LVAD). BACKGROUND: The use of transvenous lead ...
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Journal ArticleJ Cardiovasc Electrophysiol · March 2020
Cardiac implantable electronic devices (CIEDs) frequently need to be extracted due to infection, hardware failure, and other causes. The extraction of the CIED is typically performed using percutaneous methods. While these procedures are mostly performed w ...
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Journal ArticleAm Heart J · February 2020
BACKGROUND: Pulmonary wall isolation (PWI) is increasingly used as an adjunctive lesion set to compliment pulmonary vein isolation (PVI), especially in patients with persistent atrial fibrillation (AF). The objective was to compare outcomes of catheter abl ...
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Journal ArticleJ Arrhythm · February 2020
BACKGROUND: Catheter ablation is an important rhythm control therapy in patients with atrial fibrillation (AF) with concomitant heart failure (HF). The objective of this study was to assess the comparative efficacy of AF ablation patients with ischemic vs ...
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Journal ArticlePacing Clin Electrophysiol · November 2019
BACKGROUND: Compared with medical therapy, catheter ablation of atrial fibrillation (AF) in patients with heart failure (HF) improves cardiovascular outcomes. Risk scores (CAAP-AF and APPLE) have been developed to predict the likelihood of AF recurrence af ...
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Chapter · April 5, 2019
Mapping and elimination (ablation) of an abnormal cardiac rhythm requires an understanding of normal and abnormal anatomy and physiology, and monitoring of the interventional catheters and ablation energy’s effects. Cardiac electrophysiology has evolved en ...
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Journal ArticleHeart Rhythm · May 2018
BACKGROUND: Few studies have examined outcomes of catheter ablation for atrial fibrillation (AF) in patients with heart failure (HF) with preserved ejection fraction (HFpEF). OBJECTIVE: The purpose of this study was to compare outcomes of AF ablation in pa ...
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Journal ArticleCirculation · October 10, 2017
BACKGROUND: Lead management is an increasingly important aspect of care in patients with cardiac implantable electronic devices; however, relatively little is known about long-term outcomes after capping and abandoning leads. METHODS: Using the 5% Medicare ...
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Journal ArticleJACC Clin Electrophysiol · June 2017
OBJECTIVES: This analysis evaluated temporal trends and factors associated with the use of dual-coil implantable cardioverter-defibrillator (ICD) leads. BACKGROUND: Data suggest that dual-coil ICD leads are not associated with lower mortality and can be mo ...
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Journal ArticleJAMA Cardiol · December 1, 2023
IMPORTANCE: Complete hardware removal is a class I recommendation for cardiovascular implantable electronic device (CIED) infection, but practice patterns and outcomes remain unknown. OBJECTIVE: To quantify the number of Medicare patients with CIED infecti ...
Full textLink to itemCite
Journal ArticleCirc Arrhythm Electrophysiol · June 2023
BACKGROUND: Rotational cutting tools are increasingly used in transvenous lead extraction. There are limited data on their safety and efficacy, particularly when used adjunctively for stalled progression. The aim of this study was to evaluate the utilizati ...
Full textLink to itemCite
Journal ArticleJ Cardiovasc Electrophysiol · March 2022
BACKGROUND: Cardiac implanted electronic device (CIED) pocket and systemic infection remain common complications with traditional CIEDs and are associated with high morbidity and mortality. Leadless pacemakers may be an attractive pacing alternative for ma ...
Full textLink to itemCite
Journal ArticleHeart Rhythm O2 · February 2022
BACKGROUND: Procedural and clinical outcomes of patients undergoing extraction or removal of azygous coils are not well characterized. OBJECTIVE: Evaluate outcomes in patients who undergo device extraction with an azygous coil in situ. METHODS: Patients un ...
Full textLink to itemCite
Journal ArticleHeart Rhythm O2 · October 2021
BACKGROUND: Atrioventricular (AV)-synchronous single-chamber leadless pacing using a mechanical atrial sensing algorithm produced high AV synchrony in clinical trials, but clinical practice experience with these devices has not yet been described. OBJECTIV ...
Full textOpen AccessLink to itemCite
Journal ArticlePacing Clin Electrophysiol · September 2020
BACKGROUND: Cardiac amyloidosis is a progressive infiltrative disease involving deposition of amyloid fibrils in the myocardium and cardiac conduction system that frequently manifests with heart failure (HF) and arrhythmias, most frequently atrial fibrilla ...
Full textLink to itemCite
Journal ArticleJACC Clin Electrophysiol · September 2020
OBJECTIVES: This study sought to determine the indications, characteristics, and outcomes of cardiovascular implantable electronic device (CIED) surgery in patients with LVAD. BACKGROUND: Many patients with a left ventricular assist device (LVAD) will requ ...
Full textLink to itemCite
Journal ArticleHeart Rhythm O2 · August 2020
BACKGROUND: Diabetes mellitus (DM) is an independent risk factor for atrial fibrillation (AF). Few studies have compared clinical outcomes after catheter ablation between patients with and those without DM. OBJECTIVE: The purpose of this study was to compa ...
Full textOpen AccessLink to itemCite
Journal ArticleJ Cardiovasc Electrophysiol · July 2020
Due to the growing number of patients treated with cardiac implantable electronic devices (CIEDs) there is an increased need for lead management, evaluation, and extraction. While CIED lead extraction has many indications, a consistent approach to preproce ...
Full textLink to itemCite
Journal ArticleJACC Clin Electrophysiol · June 2020
OBJECTIVES: The goal of this study was to assess the utility of transvenous lead extraction for cardiovascular implantable electronic device (CIED) infection in patients with a left ventricular assist device (LVAD). BACKGROUND: The use of transvenous lead ...
Full textLink to itemCite
Journal ArticleJ Cardiovasc Electrophysiol · March 2020
Cardiac implantable electronic devices (CIEDs) frequently need to be extracted due to infection, hardware failure, and other causes. The extraction of the CIED is typically performed using percutaneous methods. While these procedures are mostly performed w ...
Full textLink to itemCite
Journal ArticleAm Heart J · February 2020
BACKGROUND: Pulmonary wall isolation (PWI) is increasingly used as an adjunctive lesion set to compliment pulmonary vein isolation (PVI), especially in patients with persistent atrial fibrillation (AF). The objective was to compare outcomes of catheter abl ...
Full textLink to itemCite
Journal ArticleJ Arrhythm · February 2020
BACKGROUND: Catheter ablation is an important rhythm control therapy in patients with atrial fibrillation (AF) with concomitant heart failure (HF). The objective of this study was to assess the comparative efficacy of AF ablation patients with ischemic vs ...
Full textOpen AccessLink to itemCite
Journal ArticlePacing Clin Electrophysiol · November 2019
BACKGROUND: Compared with medical therapy, catheter ablation of atrial fibrillation (AF) in patients with heart failure (HF) improves cardiovascular outcomes. Risk scores (CAAP-AF and APPLE) have been developed to predict the likelihood of AF recurrence af ...
Full textOpen AccessLink to itemCite
Chapter · April 5, 2019
Mapping and elimination (ablation) of an abnormal cardiac rhythm requires an understanding of normal and abnormal anatomy and physiology, and monitoring of the interventional catheters and ablation energy’s effects. Cardiac electrophysiology has evolved en ...
Full textCite
Journal ArticleHeart Rhythm · May 2018
BACKGROUND: Few studies have examined outcomes of catheter ablation for atrial fibrillation (AF) in patients with heart failure (HF) with preserved ejection fraction (HFpEF). OBJECTIVE: The purpose of this study was to compare outcomes of AF ablation in pa ...
Full textLink to itemCite
Journal ArticleCirculation · October 10, 2017
BACKGROUND: Lead management is an increasingly important aspect of care in patients with cardiac implantable electronic devices; however, relatively little is known about long-term outcomes after capping and abandoning leads. METHODS: Using the 5% Medicare ...
Full textLink to itemCite
Journal ArticleJACC Clin Electrophysiol · June 2017
OBJECTIVES: This analysis evaluated temporal trends and factors associated with the use of dual-coil implantable cardioverter-defibrillator (ICD) leads. BACKGROUND: Data suggest that dual-coil ICD leads are not associated with lower mortality and can be mo ...
Full textLink to itemCite
Journal ArticleOpen Forum Infect Dis · December 2015
Background. The optimum approach for infectious complication surveillance for cardiac implantable electronic device (CIED) procedures is unclear. We created an automated surveillance tool for infectious complications after CIED procedures. Methods. Adult ...
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Journal ArticleEuropace · June 2015
AIMS: Recently, a U-shaped association between PR-interval and the risk of developing atrial fibrillation was described, with higher risk in patients with long and short PR-intervals. Little is known regarding the association of PR-interval duration and mo ...
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Journal ArticleJ Cardiovasc Electrophysiol · November 2014
INTRODUCTION: Heart failure patients with left ventricular assist devices (LVADs) are at risk for infection. Cardiac implantable electronic devices (CIEDs) are commonly present in these patients. The course of infections in patients with an LVAD and a CIED ...
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Journal ArticlePacing Clin Electrophysiol · October 2014
BACKGROUND: Preprocedural multidetector computed tomography (MDCT) may identify patients at risk for mechanical complications during lead extraction. METHODS: To describe the use and feasibility of computed tomography scanning for preprocedural planning of ...
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Journal ArticleAm J Cardiol · October 1, 2013
Risk of atrial fibrillation (AF) after coronary artery bypass grafting (CABG) is high, yet the effectiveness of guideline-recommended preoperative prophylaxis in clinical practice remains uncertain. We determined the utilization and variation of preoperati ...
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Journal ArticleHeart Rhythm · August 2013
BACKGROUND: A 2008 expert consensus statement recommended an in-person follow-up visit between 2 and 12 weeks after the placement of a new cardiovascular implantable electronic device (CIED). OBJECTIVE: To assess outcomes associated with adherence to the e ...
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Journal ArticlePacing Clin Electrophysiol · May 2013
BACKGROUND: Proper positioning of the left ventricular (LV) lead improves clinical outcomes and survival in patients receiving cardiac resynchronization therapy (CRT). Techniques of LV lead insertion using contrast injection and a telescoping system of del ...
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Journal ArticleJ Am Coll Cardiol · July 31, 2012
OBJECTIVES: We tested whether an assessment of myocardial scarring by cardiac magnetic resonance imaging (MRI) would improve risk stratification in patients evaluated for implantable cardioverter-defibrillator (ICD) implantation. BACKGROUND: Current sudden ...
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Journal ArticleJ Cardiovasc Electrophysiol · February 2011
UNLABELLED: INTRODUCTION: Cardiovascular magnetic resonance imaging (cMRI) may provide a noninvasive method to test for pulmonary vein (PV) isolation after ablation for atrial fibrillation (AF) by detecting changes in PV contraction. METHODS: PV contract ...
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Journal ArticleBiochem Biophys Res Commun · July 5, 1999
Adherens junctions, consisting of transmembrane cadherin molecules and their associated cytoplasmic alpha-, beta-, and gamma-catenin proteins, are thought to be critical for the development of stable cell adhesion and subsequent 3-dimensional tissue organi ...
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Journal ArticleBiochem Biophys Res Commun · February 16, 1999
We demonstrate that stimulation of primary cultures of endothelial cells with vascular endothelial cell growth factor (VEGF) results in a rapid increase in labeled guanine nucleotide bound to p21ras. Surprisingly, although VEGF stimulates ras activity, ade ...
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Journal ArticleJ Clin Invest · September 1, 1998
We have used adenoviral-mediated gene transfer of a constitutively active (V12rac1) and dominant negative (N17rac1) isoform of rac1 to assess the role of this small GTPase in cardiac myocyte hypertrophy. Expression of V12rac1 in neonatal cardiac myocytes r ...
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Journal ArticleSurgery · August 1997
BACKGROUND: The small guanosine triphosphate-binding protein ras regulates a signal transduction cascade linking cell surface receptors to mitogen-activated protein kinase (MAPK). Because the molecular signaling mechanisms underlying cardiac hypertrophy re ...
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