Results 121 to 130 of about 983,474 (242)

Exercise Induced Non-Sustained Ventricular Tachycardia and Indication for Invasive Management

open access: yes, 2011
Diagnostic stress echo testing is commonly performed in patients with known or suspected cardiovascular disease. There has been considerable debate in management of exercise induced non-sustained ventricular tachycardia (NSVT).
Shahriar Dadkhah   +3 more
core   +1 more source

Molecular genetics of arrhythmogenic right ventricular cardiomyopathy in South Africa [PDF]

open access: yes, 2011
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a heritable disorder characterised by progressive degeneration of the right ventricular myocardium, arrhythmias and an increased risk of sudden death at a young age. Fourteen chromosomal loci have
Blanckenberg, Janine
core   +1 more source

Arrhythmogenicity of the Coronary Sinus

open access: yesIndian Pacing and Electrophysiology Journal, 2004
The coronary sinus (CS) is the cardiac venous system that begins at its ostium in the right atrium and ends at the origin of the great cardiac vein. The major tributaries of the CS include the great cardiac vein (anterior cardiac vein), the left obtuse ...
Demosthenes G. Katritsis
doaj  

The interplay between dynamic regulation of ion‐channel gating and trafficking in cardiac arrhythmogenesis

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Cardiac cellular electrophysiology is modulated by multiple factors, including temperature, extracellular K+, heart rate/pacing frequency, and drugs. These modulators can have distinct effects on ion‐channel gating and transcription/trafficking over time.
Stefan Meier   +3 more
wiley   +1 more source

Extracellular ionic concentration modulates arrhythmias in a simulated population of human ventricular myocytes with long QT syndrome type 3

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustrating the in silico study pipeline. A total of 50,000 virtual myocytes were generated, which were then filtered to 7093 myocytes that fit experimentally constrained biomarkers for physiological electrical and calcium behaviour under wild‐type conditions.
Katherine Flannery   +3 more
wiley   +1 more source

Longer action potential duration in the Purkinje network than in the ventricular myocardium delays retrograde activation of the human His‐Purkinje system

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Activation time (AT) maps from right ventricular apical pacing in a human ventricles model with longer action potential duration in the His‐Purkinje system (HPS) than in the myocardium (MYO). For pacing with a long S1S2 coupling interval (CI), the AT from the myocardial pacing site to the first AT of the HPS (ATMYO) is longer ...
Jason D. Bayer   +3 more
wiley   +1 more source

Age‐ and sex‐specific modulation of human cardiac electrophysiology by doxorubicin

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend DOX differentially impacts cardiac electrophysiology based on sex and age. Sex differences were primarily observed among younger hearts, where action potential duration (APD) prolongation was observed in females, but not in males. Created using BioRender. George, S. (2026) https://BioRender.com/wresf1k Abstract Acute doxorubicin (
Sharon A. George   +5 more
wiley   +1 more source

Regional electrical differences and arrhythmia in the rat atria: Role of sympathetic nerve distribution and function

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Atrial fibrillation commonly develops in the left atrium and pulmonary veins (PVs), and can be triggered by sympathetic nerve activity. Here, we examined regional atrial differences in sympathetic nerve distribution and function in the rat.
James Saleeb‐Mousa   +6 more
wiley   +1 more source

Accelerated Idioventricular Rhythm: History and Chronology of the Main Discoveries

open access: yesIndian Pacing and Electrophysiology Journal, 2010
Accelerated Idioventricular Rhythm (AIVR) is a ventricular rhythm consisting of three or more consecutive monomorphic beats, with gradual onset and gradual termination.
Andres Ricardo Perez Riera   +3 more
doaj  

Beat‐to‐beat variability of ventricular repolarization reveals sex‐specific instability and proarrhythmic risk

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend A mechanistic framework linking sex‐dependent dynamical instability to proarrhythmic risk. Sex‐specific human ventricular models show that upstream modulators, including biological sex, hormones, drugs and heart disease, promote steeper APD restitution in female than male and enhance dynamical instability.
Daisuke Sato   +3 more
wiley   +1 more source

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