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Early Improvement in Cardiac Function and Dyssynchrony After Physiological Upgrading in Pacing-Induced Cardiomyopathy.
Pacing Clin Electrophysiol
December 2024
Arrhythmia Unit, Department of Cardiology, Hospital Juan Ramón Jiménez, Huelva, Spain.
Background: Interventricular dyssynchrony derived from the classic non-physiological stimulation (n-PS) of the right ventricle (RV) is a known cause of left ventricular dysfunction (LVDys).
Methods: This was a prospective descriptive single-center study. We analyzed patients who develop LVDys with n-PS, and the results after upgrading to conduction system pacing (CSP).
Reversible right bundle branch block caused by spasm of the anterior septal branch: case report.
BMC Cardiovasc Disord
December 2024
Departmentof Cardiology, Wuhan Asia Heart Hospital, Wuhan, China.
Background: Coronary Artery Spasm (CAS) often presents in the epicardial coronary arteries. The anterior septal branch is distributed within the myocardium, and occurrences of spasms are rare. Currently, there is no available literature on this topic, and the onset of symptoms remains elusive, potentially leading to misdiagnosis.
View Article and Find Full Text PDFMid-Term Impact of Conduction System Pacing on Overall Cardiac Performance: A Non-Randomized, Prospective, Single-Center Echocardiographic Study.
Diseases
December 2024
5th Department of Internal Medicine, Faculty of Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania.
Recently published data suggested significantly lower pacing-induced cardiomyopathy (PICM) incidence with conduction system pacing (CSP). Because most data evaluated only the impact on the left ventricle, this study aimed to assess changes in echocardiographic parameters of morphology and function for all heart chambers in patients with baseline preserved and mid-range LVEF over a medium-term follow-up period after CSP. A total of 128 consecutive patients with LVEF > 40% and successful CSP for bradyarrhythmic indication were prospectively enrolled.
View Article and Find Full Text PDF'Pacing System Analyzers to guide Conduction System Pacing implantation procedures: A comparison study of intracardiac and surface signals with an Electrophysiological Recording System'.
Heart Rhythm
December 2024
Electrophysiology Unit. Cardiovascular Division. Hospital del Mar. Passeig Maritim de la Barceloneta. Barcelona. Spain; Department of Medicine, Universitat Autònoma de Barcelona, Bellaterra, Spain.
Background: Left bundle branch area pacing (LBBAP) needs confirmation of left conduction system capture assessed by testing of different electrical parameters. Guidelines recommend the use of an electrophysiological recording-system (EP-RS) to guide conduction system pacing (CSP) procedures. However, some experienced centers perform LBBAP procedures without an EP-RS.
View Article and Find Full Text PDFAddressing Functional Mitral Regurgitation in Dilated Cardiomyopathy: A Focus on Myocardial Segment Resynchronization Through Cardiac Resynchronization Therapy.
Cureus
November 2024
Department of Cardiology, Liv Hospital Ulus, Istanbul, TUR.
Article Synopsis
- Cardiac resynchronization therapy (CRT) improves functional mitral regurgitation (FMR) by coordinating heart muscle segments, especially between papillary muscles, beyond just boosting left ventricular (LV) performance.
- Eighteen patients with dilated cardiomyopathy underwent tests to measure heart function, and biventricular pacing showed a significant reduction in mitral regurgitation despite some patients showing no change in LV pressure.
- The study concludes that CRT effectively lowers FMR independently of LV systolic function improvements, highlighting the importance of understanding its mechanisms for better treatment outcomes.
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