Results 71 to 80 of about 22,957 (209)
Impact of Leadless Pacemaker Implantation Position on Subclinical Right Ventricular Perforation
Pacing and Clinical Electrophysiology, EarlyView.ABSTRACT Introduction Leadless pacemakers are typically implanted in the mid‐septum of the right ventricle (RV) to mitigate the risk of perforation. However, reports on the precise location of these implants are limited. This study aimed to elucidate tine‐based leadless pacemaker position and presence of subclinical RV perforation through computed ...
Young Shin Lee +16 more
wiley +1 more source
Cystic tumour of the atrioventricular node: case report and literature review
Forensic Sciences Research, 2019 Cystic tumour of the atrioventricular node is the smallest tumour that can cause sudden cardiac death. This lesion arises from foregut endodermal rests which become enfolded into the heart during embryogenesis.
Stephen D. Cohle
doaj +1 more source
Surgical and Electrical Anatomy of the Inter-Nodal and Intra-Atrial Conduction System in the Heart
Journal of Chest Surgery, 2022 An anatomical understanding of the atrial myocardium is crucial for surgeons and interventionists who treat atrial arrhythmias. We reviewed the anatomy of the inter-nodal and intra-atrial conduction systems.
Jeong-Wook Seo +7 more
doaj +1 more source
QT Interval Evaluation in Right Ventricular Pacing: Validation of a Novel Formula
Pacing and Clinical Electrophysiology, EarlyView.Abstract Background QT interval measurement in the presence of right ventricular pacing (RVP) represents a clinical challenge. We therefore aimed to derive and validate a formula for QT estimation during RVP in a large cohort of pacemaker patients. Methods and Results We prospectively enrolled 100 patients in a derivation cohort and 487 in a validation
Amr Abdin +9 more
wiley +1 more source
Werner Irnich: Pioneer in the Development of the Dual‐Chamber Pacemaker—An Obituary
Pacing and Clinical Electrophysiology, EarlyView.ABSTRACT Fifty years ago, Werner Irnich presented the concept of an optimal pacemaker capable of responding appropriately to various cardiac arrhythmias and perceptual disturbances, and intended to be used in 85% of patients. With this concept, Irnich was far ahead of his time. His proposed circuitry for AV block and atrial fibrillation, as well as his
Bernd Lemke
wiley +1 more source
Cerebrovascular regulation during heat stress
Experimental Physiology, EarlyView.Abstract Given that the brain is a highly metabolic organ and is enclosed by the skull, effective regulation of cerebral blood flow (CBF), not only for oxygen and nutrients supply but also as a means of convective heat exchange, is critical for preventing excessive elevations in brain temperature.
Kanoko Ito, Manabu Shibasaki
wiley +1 more source
Regeneration of the lizard heart after cryoinjury
Experimental Physiology, EarlyView.Abstract Lizards are renowned for their tremendous potential to heal tissues and organs after injury, but little is known about myocardial regeneration in reptiles generally. Here, we study cardiac regeneration in the leopard gecko (Eublepharis macularius) to fill the knowledge gap between traditional models of poikilothermic (zebrafish) and ...
Martina Gregorovicova +5 more
wiley +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend Overview of multiscale cardiac remodelling in type 2 diabetes and how to model and simulate these changes using a human‐based, multiscale computational framework. Cardiac remodelling in type 2 diabetes occurs at ionic channel, protein, cellular, tissue and whole‐organ level, affecting the electrophysiological function, mechanical
Ambre Bertrand +2 more
wiley +1 more source
Mathematical model of the zebrafish ventricular cardiomyocyte action potential and calcium transient
The Journal of Physiology, EarlyView.Abstract figure legend This study presents the development and validation of the first biophysically detailed computational model of the zebrafish ventricular action potential (AP). The model is based on a human cardiomyocyte framework and reparameterized using published and newly generated patch‐clamp recordings of zebrafish ionic currents.
Ludovica Cestariolo +5 more
wiley +1 more source