Results 201 to 210 of about 72,612 (294)

The multicellular environment of the re‐entrant circuit in post‐myocardial infarction ventricular tachycardia: Beyond fibrosis

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the temporal evolution of the post‐myocardial infarction substrate leading to ventricular tachycardia. Acute ischaemic injury initiates metabolic and electrophysiological disruption, followed by progressive inflammatory, fibrotic and structural remodelling within the infarct border zone.
Mohammed Obeidat, Jaffar Al‐Sheikhli, Andrew M. Blanks, Joseph Mayer, Nicolas Lellouche, Tarvinder Dhanjal, Christopher O'Shea   +6 more
wiley   +1 more source

Atrial fibrillation secondary to diffuse large B-cell lymphoma responding to corticosteroid treatment: a case report. [PDF]

Eur Heart J Case Rep
Martini L, Fabiani I, Grigoratos C, Passino C.   +3 more
europepmc   +1 more source

An age‐associated decline in the role of the sarcoplasmic reticulum and associated calcium‐handling proteins sets the pace for sinoatrial node function

The Journal of Physiology, EarlyView.
Abstract figure legend Stable, responsive pacemaking in the sinoatrial node is driven by the activity of the funny current (membrane clock), interplay of calcium cycling and release from the sarcoendoplasmic reticulum with depolarising sodium‐calcium exchange current (calcium clock). With increasing age, key proteins associated with calcium cycling are
Sandra A. Jones, Fiona S. Godbeer, Matthew K. Lancaster   +2 more
wiley   +1 more source

Resistant to Ablation, Responsive to Hydroquinidine: Precision Medicine Guides Recovery in MEPPC Syndrome Cardiomyopathy. [PDF]

J Arrhythm
Ciofani JL, Raju H, Anastasius M.
europepmc   +1 more source

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

The 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, Anna S. Savchenko, Paul G. A. Volders, Jordi Heijman   +3 more
wiley   +1 more source

Assessing Tachydysrhythmia When P-waves Are Present: Challenges and Pitfalls. [PDF]

Cureus
Stahl B, Goldwag J, Wu G.
europepmc   +1 more source

Panoramic voltage‐sensitive optical mapping of contracting hearts using cooperative multiview motion tracking with 12 cameras

The Journal of Physiology, EarlyView.
Abstact figure legend A panoramic 3D optical mapping system was developed, enabling imaging of action potential waves across the entire strongly deforming ventricular surface of beating isolated hearts. The system comprises 12 high‐speed cameras and a soccerball‐shaped imaging chamber with 48 light‐emitting diodes (LEDs).
Shrey Chowdhary, Jan Lebert, Shai Dickman, Mason Manetta, Charles Gordon, Jan Christoph   +5 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

The 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, Edward J. Vigmond, Ruben Coronel, Chantal E. Conrath   +3 more
wiley   +1 more source

The ultrarapid delayed rectifier potassium current has important functional role in the repolarization reserve of canine and human ventricular muscle

The Journal of Physiology, EarlyView.
Abstract figure legend The ultrarapid delayed rectifier potassium current (IKur) has long been considered an atrial‐specific current with no functional role in the ventricles, despite evidence of its expression in ventricular myocytes. In the present study we challenged this prevailing concept and investigated the potential role of IKur in ventricular ...
Alaa Amin E. Abdelmagid, Aiman Saleh A. Mohammed, Gábor Mohácsi, Benjámin Paskuj, Gergő Bitay, Jakub Tomek, Sahil Dalal, Tamás Árpádffy‐Lovas, Vivien Demeter‐Haludka, István Koncz, Muhammad Naveed, László Virág, Norbert Nagy, András Varró, István Baczkó, Norbert Jost, Zsófia Kohajda, Leila Topal   +17 more
wiley   +1 more source

VitalDB Arrhythmia Database: An Anesthesiologist-Validated Large-scale Intraoperative Arrhythmia Dataset with Beat and Rhythm Labels. [PDF]

Sci Data
Eun DI, Shim K, Lee H, Lim Y, Lim H, Lee H, Lee J, Lee HC.   +7 more
europepmc   +1 more source