Results 61 to 70 of about 15,459 (272)

Optimal Cardiac Resynchronization Therapy with Conduction System Pacing Guided by Electro-Anatomical Mapping: A Case Report

open access: yesJournal of Cardiovascular Development and Disease, 2023
Introduction: Biventricular pacing has been the gold standard for cardiac resynchronization therapy in patients with left bundle branch block and severely reduced left ventricular ejection fraction for decades.
Catalin Pestrea   +3 more
doaj   +1 more source

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

open access: yesThe 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   +9 more
wiley   +1 more source

Naxos Disease [PDF]

open access: yes, 2005
Since 1995, according to the World Health Organisation’s classification of cardiomyopathies, Naxos disease has been considered as the recessive form of arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C).1 It is a stereotype association of
Protonotarios, Nikos   +1 more
core   +2 more sources

Successful resynchronization by permanent His-bundle pacing in a patient with pacing-induced cardiomyopathy

open access: yesJournal of Arrhythmia, 2016
Right ventricular (RV) pacing has been reported to result in ventricular dyssynchrony, heart failure, and increased mortality. Pacing associated deterioration of left ventricular (LV) systolic function has been termed pacing-induced cardiomyopathy (PICM).
Yoji Iida, MD   +4 more
doaj   +1 more source

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

open access: yesThe 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   +9 more
wiley   +1 more source

Multicenter Randomized Controlled Crossover Trial Comparing Hemodynamic Optimization Against Echocardiographic Optimization of AV and VV Delay of Cardiac Resynchronization Therapy:The BRAVO Trial [PDF]

open access: yes, 2018
Objectives: BRAVO (British Randomized Controlled Trial of AV and VV Optimization) is a multicenter, randomized, crossover, noninferiority trial comparing echocardiographic optimization of atrioventricular (AV) and interventricular delay with a ...
Afzal Sohaib, S.M.   +27 more
core   +2 more sources

The Use of a Quadripolar Left Ventricular Lead Increases Successful Implantation Rates in Patients with Phrenic Nerve Stimulation and/or High Pacing Thresholds Undergoing Cardiac Resynchronisation Therapy with Conventional Bipolar Leads

open access: yesIndian Pacing and Electrophysiology Journal, 2013
Background: Phrenic nerve stimulation (PNS) and high pacing thresholds (HPT) hinder biventricular stimulation in patients (pts) undergoing cardiac resynchronization therapy (CRT). A new quadripolar left ventricular (LV) lead (Quartet 1458Q, St.
Marc-Alexander Ohlow, MD   +4 more
doaj   +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

Sensors for Rate Responsive Pacing [PDF]

open access: yes, 2004
Advances in pacemaker technology in the 1980s have generated a wide variety of complex multiprogrammable pacemakers and pacing modes. The aim of the present review is to address the different rate responsive pacing modalities presently available in ...
Dell’Orto, Simonetta   +2 more
core   +2 more sources

Middle and posterior cardiac veins: An underused option for ventricular pacing [PDF]

open access: yes, 2011
Tarrasó, Olga;Fuente Fuente, Carlos;Reventós ...
Henry M. Spotnitz   +6 more
core   +1 more source

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