Results 221 to 230 of about 423,458 (301)

Junctional Ectopic Tachycardia After Adult Cardiac Surgery. [PDF]

JACC Case Rep
Jordan A, Zeljković I, Tomić SS, Lisičić A, Bušić N, Rode F, Manola Š, Pavlović N.   +7 more
europepmc   +1 more source

An eikonal model with re‐excitability for fast simulations in cardiac electrophysiology

The Journal of Physiology, EarlyView.
Abstract figure legend Restitution properties obtained from cable‐equation simulations and anisotropic remeshing informed by local fibre orientation are combined in an eikonal model with re‐excitability. The resulting reduced electrophysiology model enables efficient simulations of recurrent activation patterns, here illustrated by atrial re‐entry ...
Lia Gander, Rolf Krause, Francisco Sahli Costabal, Simone Pezzuto   +3 more
wiley   +1 more source

Analysis of the efficacy of transesophageal atrial pacing in the treatment of supraventricular tachycardia in newborns. [PDF]

Front Cardiovasc Med
Xu M, Xiao T, Yan C, Han Y, Yan Z, Hou C, Zhao X, Zhang L.   +7 more
europepmc   +1 more source

Mechanisms underlying local Ca2+ signalling differences between right and left atrial myocytes at normal and increased frequencies

The Journal of Physiology, EarlyView.
Abstract figure legend Left atrial myocytes have TAT‐associated faster Ca2+ release but are more prone to maladaptation at higher frequencies due to weaker peripheral SR Ca2+ uptake and smaller trigger Ca2+ current. Abstract Changes in heart rate affect Ca2+ signalling and contractility in ventricular muscle, but the effects on atrial Ca2+ signalling ...
Joon‐Chul Kim, Hieu Trong Huynh, Phuong Kim Luong, Tran Nguyet Trinh, Yixuan Wu, Eleonora Grandi, Sun‐Hee Woo   +6 more
wiley   +1 more source

Successful termination of ventricular tachycardia by intrinsic antitachycardia pacing delivered from a left bundle branch area pacing lead: a case report. [PDF]

Eur Heart J Case Rep
Moriyama N, Sugiyama Y, Hiruma Y, Shimizu K, Saito S.   +4 more
europepmc   +1 more source

Deciphering pro‐arrhythmogenic mechanisms of EPAC in human atrial cardiomyocytes

The Journal of Physiology, EarlyView.
Abstract figure legend This study aimed to investigate the effect of exchange proteins directly activated by cAMP (EPAC) on the regulation of human atrial cardiomyocyte electrophysiology and their potential involvement in the onset of atrial fibrillation (AF).
Arthur Boileve, Margaux Aize, Maximin Détrait, Laura Brard, Adrien Leboyer, Pierre‐Antoine Dupont, Alexandre Lebrun, Vladimir Saplacan, Christophe Simard, Fabien Brette, Frank Lezoualc'h, Laurent Sallé   +11 more
wiley   +1 more source

Association of Cardiovascular Magnetic Resonance-Derived Papillary Muscle Abnormalities with Non-Sustained Ventricular Tachycardia in Hypertrophic Cardiomyopathy. [PDF]

Diagnostics (Basel)
Güven B, Deniz FM, Özkan F, Geylan AN, Sinan ÜY, Selcuk Can T, Oktay V.   +6 more
europepmc   +1 more source

Energetic microdomains and the vascular control of neuronal and muscle excitability: Toward a unified model

The Journal of Physiology, EarlyView.
Abstract figure legend The capillary–mitochondria–ion channel (CMIC) axis scales structural resources to match functional workload. (Left) In settings of restricted energetic capacity (e.g. cortical neurons), sparse capillary networks and modest mitochondrial pools set a lower energetic ceiling, sufficient to support phasic, low‐workload excitability. (
L. Fernando Santana, Scott Earley
wiley   +1 more source

A Case of Wide Complex Tachycardia With Right Bundle Branch Block-Electrocardiographic Features to Distinguish Supraventricular Tachycardia With Aberrancy Versus Ventricular Tachycardia. [PDF]

J Arrhythm
Moe MEE, Loo G, Chong D, Ching KC.
europepmc   +1 more source

Cellular mechanisms of radiation‐induced myocyte dysfunction: effects on calcium handling, ion channel regulation and mitochondrial energetics

The Journal of Physiology, EarlyView.
Abstract figure legend Dose‐dependent effects of radiation on cardiac electrophysiology and arrhythmia susceptibility. At low radiation doses (left), increased reactive oxygen species (ROS) initiate an ROS–Ca2+ positive feedback loop involving calcium/calmodulin‐dependent protein kinase II (CaMKII) activation, enhanced L‐type Ca2+ current (ICaL ...
Hannah M. Zukowski, Colleen E. Clancy
wiley   +1 more source