Results 111 to 120 of about 1,229,815 (249)

Haemodynamic‐energetic mechanism of sudden cardiac death in severe aortic stenosis: A modelling study

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend A sudden decrease in total peripheral resistance (TPR), as observed during vasovagal syncope, leads to a reduction in aortic systolic pressure (AO pressure) and afterload. In healthy individuals, the consequent decrease in left ventricular systolic pressure (LV pressure) lowers stroke work and myocardial energy expenditure.
Martin Dvoulety, Michal Sitina
wiley   +1 more source

Defibrillation thresholds testing of implantable cardioverter-defibrillators at implantation

open access: yesJournal of the American College of Cardiology, 2005
I read with interest the reports on defibrillation testing (DFT) during implantable cardioverter-defibrillator (ICD) implantation published recently in JACC ([1,2][1]). There is a significant, albeit low, risk to serious complications including death during DFT testing.
openaire   +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

open access: yesThe 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   +7 more
wiley   +1 more source

Caenorhabditis elegans as an in vivo model system for human inherited primary arrhythmia syndromes

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Most genes involved in inherited primary arrhythmia syndromes (IPAS) are conserved in Caenorhabditis elegans, where genetic manipulation enables functional characterization of variants, identification of regulatory proteins, and in vivo drug testing.
Antoine Delinière   +6 more
wiley   +1 more source

MRI and Implant Safety at Low‐Field and Ultralow‐Field Strengths

open access: yesJournal of Magnetic Resonance Imaging, Volume 63, Issue 2, Page 364-377, February 2026.
ABSTRACT Despite its unequivocal value in radiological diagnosis, access to conventional high‐field MRI systems remains extremely uneven across the world. Access is particularly limited in underfunded and remote settings, due to the high cost and infrastructure requirements of MRI systems.
Emre Kopanoglu   +7 more
wiley   +1 more source

A Case of VF Misclassification Corrected by VF Therapy Assurance: Implications for ICD Programming

open access: yesJournal of Arrhythmia, Volume 42, Issue 1, February 2026.
Implantable cardioverter‐defibrillator undersensing may delay therapy in ventricular fibrillation with low‐amplitude signals. Ventricular fibrillation therapy assurance (VFTA) detected persistent VF after initial shock failure, enabling timely shock delivery and successful resuscitation.
Naoki Matsumoto   +4 more
wiley   +1 more source

Effects of Anti-arrhythmic Drugs for Pacing Threshold and Defibrillation Threshold

open access: yesJournal of Arrhythmia, 2011
Toshiyuki Ishikawa, MD PhD FHRS FJCC
doaj   +1 more source

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