Scholars@Duke
Stephen Andrew Gaeta

Stephen Andrew Gaeta

Adjunct Associate in the Department of Medicine
Medicine, Cardiology
Manage Profile
Embed Profile Data

Selected Publications

Fixed volume particle trace emission for the analysis of left atrial blood flow using 4D Flow MRI.

Journal Article Magn Reson Imaging · April 2018 4D Flow MRI has been used to quantify normal and deranged left ventricular blood flow characteristics on the basis of functionally distinct flow components. However, the application of this technique to the atria is challenging due to the presence of conti ... Full text Link to item Cite

Muscle Thickness and Curvature Influence Atrial Conduction Velocities.

Journal Article Front Physiol · 2018 Electroanatomical mapping is currently used to provide clinicians with information about the electrophysiological state of the heart and to guide interventions like ablation. These maps can be used to identify ectopic triggers of an arrhythmia such as atri ... Full text Link to item Cite

Extra-cardiac manifestations of adult congenital heart disease.

Journal Article Trends Cardiovasc Med · October 2016 Advancement in correction or palliation of congenital cardiac lesions has greatly improved the lifespan of congenital heart disease patients, resulting in a rapidly growing adult congenital heart disease (ACHD) population. As this group has increased in nu ... Full text Open Access Link to item Cite

Non-linear dynamics of cardiac alternans: subcellular to tissue-level mechanisms of arrhythmia.

Journal Article Front Physiol · 2012 Cardiac repolarization alternans is a rhythm disturbance of the heart in which rapid stimulation elicits a beat-to-beat alternation in the duration of action potentials and magnitude of intracellular calcium transients in individual cardiac myocytes. Altho ... Full text Link to item Cite

Feedback-control induced pattern formation in cardiac myocytes: a mathematical modeling study.

Journal Article J Theor Biol · October 7, 2010 Cardiac alternans is a dangerous rhythm disturbance of the heart, in which rapid stimulation elicits a beat-to-beat alternation in the action potential duration (APD) and calcium (Ca) transient amplitude of individual myocytes. Recently, "subcellular alter ... Full text Link to item Cite

Dynamical mechanism for subcellular alternans in cardiac myocytes.

Journal Article Circ Res · August 14, 2009 RATIONALE: Cardiac repolarization alternans is an arrhythmogenic rhythm disturbance, manifested in individual myocytes as a beat-to-beat alternation of action potential durations and intracellular calcium transient magnitudes. Recent experimental studies h ... Full text Link to item Cite

MinK-dependent internalization of the IKs potassium channel.

Journal Article Cardiovasc Res · June 1, 2009 AIMS: KCNQ1-MinK potassium channel complexes (4alpha:2beta stoichiometry) generate IKs, the slowly activating human cardiac ventricular repolarization current. The MinK ancillary subunit slows KCNQ1 activation, eliminates its inactivation, and increases it ... Full text Link to item Cite

Genetic modifiers of the Kv beta2-null phenotype in mice.

Journal Article Genes Brain Behav · March 2005 Shaker-type potassium (K+) channels are composed of pore-forming alpha subunits associated with cytoplasmic beta subunits. Kv beta2 is the predominant Kv beta subunit in the mammalian nervous system, but its functions in vivo are not clear. Kv beta2-null m ... Full text Link to item Cite