Results 151 to 160 of about 2,023 (217)

Late Extraction of Micra AV and Implantation of Right Atrial Leadless Pacemaker

Pacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background Tine‐based leadless pacemakers have been commercially implanted over the last 10 years. Retrieval of older devices is rarely discussed and based on rare case reports only. Methods A retrospective review of an extraction case of a Micra AV leadless pacemaker was performed. Internal Review Board approval was obtained.
Lydia Fekadu Messele, Dali Fan, Lin‐Chiang Philip Chou, Daniel Cortez   +3 more
wiley   +1 more source

Ventricular Pacing Inhibition After Dual‐Chamber Leadless Pacing Associated With a Retained Right Ventricular Lead

Pacing and Clinical Electrophysiology, EarlyView.
ABSTRACT An 88‐year‐old pacemaker‐dependent man with a retained low‐impedance, noise‐producing right ventricular lead underwent implantation of a dual‐chamber leadless pacemaker. On postoperative day 1, he developed recurrent syncope with pauses up to 13 s.
Yuya Nakamura, Takamasa Ishikawa, Shuhei Arai, Kosuke Yoshikawa, Taku Asano, Toshiro Shinke   +5 more
wiley   +1 more source

Rising Comorbidity Burden in Inpatient Atrial Fibrillation Catheter Ablation: Temporal Trends and In‐Hospital Outcomes

Pacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background Despite advancements in catheter ablation (CA) technique and expertise, success rates of atrial fibrillation (AF) ablation have not substantially improved in recent years. Treating patients with advanced age and higher comorbidities may limit success rates while increasing complications.
Eran Leshem, Bar Ehrenberg, Adam Folman, Mark Kazatsker, Ariel Roguin, Gilad Margolis   +5 more
wiley   +1 more source

Ventricular Synchrony in Targeted Right Ventricular Septal Pacing: A Prospective Paired Comparison to Apical Placement

Pacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background/Objectives Right ventricular (RV) apical pacing, the standard pacing approach, often induces ventricular dyssynchrony, potentially impairing cardiac function. This study aims to investigate whether targeted RV septal pacing, guided by functional electrophysiological feedback during implantation, reduces ventricular dyssynchrony ...
Bianca Iulia Catrina, Mihai Octavian Negrea, Ciprian Tănăsescu, Florina Batar, Florin‐Leontin Lazar, Ioan Manitiu   +5 more
wiley   +1 more source

Diagnostic Accuracy of 12‐Lead ECG Algorithms for Accessory Pathway Localization in WPW: A Meta‐Analysis

Pacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background In Wolff–Parkinson–White (WPW) syndrome, accurate localization of accessory pathways before catheter ablation can improve procedural planning and efficiency. Several 12‐lead electrocardiographic (ECG) algorithms have been proposed, but their diagnostic performance has not been consistently established.
Elsayed S. Moubarak, Ahmed Farid Gadelmawla, Almothana Manasrah, Anas Mansour, Mohamed S. Elgendy, Omar Elkoumi, Husam Abu Suilik, Suhaib El Khatib, Naser Albekaen, Ahmed Moustafa, Rania Samir, Islam Saboukh, Nadica Trajkovska, Angeliki Darma, Vanessa Sciacca, Thomas Fink, Moneeb Khalaph, Christian Sohns, Philipp Sommer, Hassan El‐Shirbiny   +19 more
wiley   +1 more source

Acute cardiovascular changes following heat exposure during simulated shipboard firefighting

Experimental Physiology, EarlyView.
Abstract Like structural firefighting, shipboard firefighting requires extreme exertion. However, shipboard firefighting may be a unique cardiovascular stress as most sailors lack extensive firefighting experience and may complete significant work before reaching the fire scene.
Daniel K. Sweet, Elizabeth M. Lavoie, Hayden W. Hess, Stuart Inglis, Brian Monaco, J. Luke Pryor, Steven E. Reis, David Hostler   +7 more
wiley   +1 more source

Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat

Experimental Physiology, EarlyView.
Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli, Juliene G. Costa, Kristanti W. Wigati, Jesse L. Criddle, Julie J. Collis, Xingwei Xu, Louise H. Naylor, Howard H. Carter, Shane K. Maloney, Robert A. McLaughlin, Andrew Haynes, Helen Jones, Keith George, Daniel J. Green   +13 more
wiley   +1 more source

FGF23 promotes atrial fibrillation susceptibility through ETV1‐dependent sodium channel regulation and calcium handling abnormalities

Experimental Physiology, EarlyView.
Abstract Fibroblast growth factor 23 (FGF23) is closely associated with atrial fibrillation (AF), yet whether it modulates sodium and calcium currents in atrial myocytes remains unclear. ETV1, a key transcription factor regulating atrial electrical conduction, might also be involved in FGF23‐mediated AF.
Qiaoting Yu, Linwen Zeng, Zhijie Chen, Zhuhui Lin, Congying Wang, Lan Wang, Huixian Fu, Jiancheng Zhang   +7 more
wiley   +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

Computational modelling of cardiac fibroblast signalling reveals a key role for Ca2+ in driving atrial fibrillation‐associated fibrosis

The Journal of Physiology, EarlyView.
Abstract figure legend A pre‐existing fibroblast signalling model was enhanced by integrating atrial‐specific components and reactions linked to atrial fibrosis and atrial fibrillation (AF). The analysis highlights the central role of Ca2⁺ signalling in driving profibrotic responses to AF‐relevant stimuli, angiotensin‐II and transforming growth factor ...
Najme Khorasani, Haibo Ni, Jeffrey J Saucerman, Dobromir Dobrev, Stefano Morotti, Eleonora Grandi   +5 more
wiley   +1 more source