Results 61 to 70 of about 7,000 (184)

The apicobasal dispersion of ventricular repolarization in humans is associated with age and affects arrhythmia vulnerability

The Journal of Physiology, EarlyView.
Abstract figure legend We investigated the age‐ and sex‐related differences in the apicobasal repolarization gradient (ABRG) and evaluated their possible role inventricular arrhythmia vulnerability. Electrocardiographic imaging (ECGI) was performed in healthy subjects during sinus rhythm, and the average recovery time (RT) and activation–recovery ...
Vladimír Sobota, Job Stoks, Kiran Haresh Kumar Patel, Roshni Shetty, Haibo Ni, Eleonora Grandi, Fu Siong Ng, Paul G. A. Volders, Matthijs J. M. Cluitmans, Jason D. Bayer   +9 more
wiley   +1 more source

The influence of delayed ventricular activation on cardiac repolarization: Insights from electrocardiographic imaging

The Journal of Physiology, EarlyView.
Abstract figure legend This study examines the relationships between activation and repolarization times in epicardial reconstructed unipolar electrograms derived from ECG‐imaging in patients with normal and delayed ventricular activation. In patients with a narrow QRS‐complex, ECG‐imaging reveals significant variability in the activation ...
Karin C. Smits, Ted E.M. Lempers, Marc Strik, Job Stoks, Roel Meiburg, Matthijs J.M. Cluitmans, Paul G.A. Volders, Kevin Vernooy, Frits W. Prinzen, Uyên Châu Nguyên   +9 more
wiley   +1 more source

In silico predictions of action potential propagation in doxorubicin cardiotoxicity: A parametric study using preclinical 3D magnetic resonance imaging‐based fibrotic left ventricle models

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the study's methodology and key findings. In a preclinical swine model, doxorubicin administration induced cardiotoxicity, characterized by diffuse fibrotic remodelling and altered electrical function, as assessed by magnetic resonance (MR) imaging and electrophysiological mapping.
Javier Villar‐Valero, Jairo Rodríguez Padilla, Nicolas Cedilnik, Buntheng Ly, Juan F. Gomez, Maxime Sermesant, Mihaela Pop, Beatriz Trenor   +7 more
wiley   +1 more source

Myocardial remodeling and bioelectric changes in tachycardia-induced heart failure in dogs

Brazilian Journal of Medical and Biological Research, 2013
In this study, electrical and structural remodeling of ventricles was examined in tachycardia-induced heart failure (HF). We studied two groups of weight-matched adult male mongrel dogs: a sham-operated control group (n=5) and a pacing group (n=5) that ...
B. Song, B.N. Wang, D.N. Chen, Z.G. Luo
doaj   +1 more source

Longer Baseline Left Ventricular Activation Time Is Associated With Lower Mortality and Lower Risk of Heart Failure Hospitalization in Cardiac Resynchronization Therapy Recipients

Annals of Noninvasive Electrocardiology, Volume 31, Issue 4, July 2026.
In patients undergoing CRT implantation, a longer pre‐implant LVAT was linked to better clinical outcome (lower risk of heart failure hospitalization and all‐cause mortality), suggesting that LVAT may help refine risk stratification after CRT. ABSTRACT Introduction Many patients do not benefit from cardiac resynchronization therapy (CRT) with current ...
Sofia Marinko, Pyotr G. Platonov, Rasmus Borgquist   +2 more
wiley   +1 more source

When Trabeculations Disrupt Conduction: Left Ventricular Noncompaction Presenting With Symptomatic Bradycardia and Isorhythmic Dissociation

Clinical Case Reports, Volume 14, Issue 6, June 2026.
ABSTRACT In young patients with unexplained symptomatic bradycardia, LVNC should be considered even when initial echocardiography is equivocal. Precise ECG interpretation is essential—AV dissociation driven by a ventricular escape rhythm must be distinguished from true AV block, as this distinction directly determines whether cardiac MRI, genetic ...
Talha Shamshad, Ryan Salama, Jurgen Shtembari, Mounica Vorla, Muhammad Asif, Sanchit Duhan, Mohammad Al‐Akchar, Osama Alsara   +7 more
wiley   +1 more source

Electrocardiographic Correlates of Myocardial Remodeling After Cardiac Resynchronization Therapy

Pacing and Clinical Electrophysiology, EarlyView.
Christian Toquica, Amulya Gupta, Tucker Morey, Christopher J. Harvey, Seth H. Sheldon, Madhu Reddy, Amit Noheria   +6 more
wiley   +1 more source

Cardiac Arrest as the First Manifestation of Single Coronary Artery—Potential Role of FFRCT for Detecting Critical Flow Reduction. A Case Report

Clinical Case Reports, Volume 14, Issue 6, June 2026.
ABSTRACT Single coronary artery may present with life‐threatening ventricular arrhythmias even in the absence of structural heart disease or inducible ischemia. FFR‐CT can detect clinically relevant flow reduction despite normal functional testing, highlighting its potential role in risk stratification in patients with coronary anomalies.
Frantisek Nehaj, Robert Hatala, David Kocan, Carlos Collet, Peter Hlivak, Martin Svetlosak, Usman Ali, Derek Leslie Connolly   +7 more
wiley   +1 more source

Potential Proarrhythmic Effects of Biventricular Pacing

Journal of the American College of Cardiology, 2005
Resynchronization therapy involving right ventricular endocardial and left ventricular epicardial pacing improves cardiac output, quality of life, and New York Heart Association functional class in patients with congestive heart failure. Although a great deal of attention has been directed at showing the mechanical benefits and in fine-tuning the ...
Fish, Jeffrey M., Brugada, Josep, Antzelevitch, Charles   +2 more
openaire   +2 more sources

Reversal of Pacing‐Induced Cardiomyopathy After Upgrade to Left Bundle Branch Area Pacing: A Case Report

Clinical Case Reports, Volume 14, Issue 6, June 2026.
ABSTRACT High‐burden right ventricular pacing induced cardiomyopathy in a 47‐year‐old male; upgrading to left bundle branch area pacing may lead to rapid and sustained recovery of cardiac function.
Mengqi Yeh, Shunsong Chen, Shanshan He, Ke Liu, Kai Yang, Jiang Wang, Zhiying Zhao, Feiyan Shang, Jinrui Guo   +8 more
wiley   +1 more source