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http://dx.doi.org/10.1016/j.hrcr.2023.06.010 | DOI Listing |
Pacing Clin Electrophysiol
August 2025
Department of Pediatric Cardiovascular Surgery, University of Health Sciences, Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Turkey.
Cardiac resynchronization therapy (CRT) has been widely used in adult patients with heart failure and ventricular dyssynchrony, but its application in pediatric patients with congenital heart disease (CHD), particularly those with single-ventricle physiology, remains limited. We report the case of a male patient with congenitally corrected transposition of the great arteries (cc-TGA) and single-ventricle physiology who developed complete atrioventricular block and underwent single-chamber epicardial pacing at the age of four. A dual-chamber pacemaker was later implanted at the time of Glenn surgery.
View Article and Find Full Text PDFJACC Case Rep
August 2025
Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA.
Background: Elevated intracardiac filling pressures create a proarrhythmic environment that facilitates the development or progression of atrial fibrillation (AF). Accelerated lower rate pacing results in atrial decongestion by lowering intracardiac filling pressure and therefore may have an antiarrhythmic effect.
Case Summary: A 70-year-old woman with paroxysmal AF on flecainide progressed to symptomatic rate-controlled persistent AF 5 months ago.
Clin Case Rep
July 2025
Department of Cardiothoracic Pathology, Faculty of Medicine Carol Davila University of Medicine and Pharmacy Bucharest Romania.
Painful left bundle branch block (LBBB) syndrome is a rare condition characterized by chest pain associated with the development of LBBB in the absence of myocardial ischemia. Although the mechanism of this entity is not fully understood, the occurrence of retrosternal chest pain is considered to be the consequence of ventricular dyssynchrony induced by LBBB. We present two cases of patients with non-ischemic cardiomyopathy and chest pain associated with intermittent LBBB morphology.
View Article and Find Full Text PDFProg Cardiovasc Dis
June 2025
The University of Chicago Medicine, Center for Arrhythmia Care, Pritzker School of Medicine, Chicago, IL, USA. Electronic address:
The field of cardiac pacing has changed dramatically since the first pacemakers were implanted in the 1950s. Over the ensuing decades, advancements in pacing technology have yielded longer battery life, smaller devices, sturdier leads, and more sophisticated pacemaker programming. Cardiac resynchronization therapy (CRT) represented a significant revolution in pacing approach, with the goal of correcting interventricular dyssynchrony through biventricular pacing.
View Article and Find Full Text PDFInt J Cardiol
November 2025
Department of Cardiology, Leiden Heart-Lung Center, Leiden University Medical Center, Leiden, the Netherlands.
Background: Variable evidence exists about the efficacy of Cardiac resynchronization therapy (CRT) in women vs. men with reduced left ventricular ejection fraction (LVEF) and wide QRS complex. Current guidelines, hindered by underrepresentation of women in clinical trials, lack definitive recommendations.
View Article and Find Full Text PDF