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Guideline-directed medical therapy for heart failure in arrhythmia-induced cardiomyopathy with improved left ventricular ejection fraction.
Eur J Heart Fail
December 2024
Cardiology Department, Hospital Universitario Ramón y Cajal, Madrid, Spain.
Aims: No study has analyzed the impact of guideline-directed medical therapy in preventing heart failure (HF) relapse in patients with arrhythmia-induced cardiomyopathy (AiCM) following left ventricular ejection fraction (LVEF) improvement.
Methods And Results: We analyzed data from a single-center cohort of 200 patients admitted for HF, LVEF <50% and cardiac arrhythmia considered by cardiologists to be the precipitating cause of the episode. The primary endpoint was time-to-HF relapse, defined as the composite of readmission for HF, Emergency Department (ED) visit for HF, or significant decline in LVEF.
Left Atrial Low-Voltage Zone Assessment and Voltage-Guided Ablation Outcome in Patients With Atrial Fibrillation-Induced Tachycardiomyopathy.
Circ J
January 2025
Division of Cardiovascular Medicine, Nouvel Hôpital Civil, Strasbourg University Hospital.
Article Synopsis
- - Patients with tachycardia-induced cardiomyopathy (TIC) show better left atrial (LA) health, evidenced by lower LA volume, higher voltage, and fewer low-voltage zones (LVZs) compared to those without TIC.
- - In a study of 139 persistent atrial fibrillation patients undergoing catheter ablation, those with TIC had less atrial remodeling and a 36-month follow-up showed no significant difference in the rate of atrial tachyarrhythmia (AT) recurrence between TIC and non-TIC groups.
- - Overall, the findings suggest TIC patients have similar, if not improved, outcomes following ablation procedures, despite possessing a less remodeled atrial substrate.
Risk factors for tachycardia-induced cardiomyopathy due to atrial fibrillation.
Pacing Clin Electrophysiol
August 2024
Division of Cardiology, Osaka Rosai Hospital, Sakai, Osaka, Japan.
Background: Tachycardia-induced cardiomyopathy (TIC) is a reversible cardiomyopathy with ventricular dysfunction caused by tachyarrhythmias. Notably, atrial fibrillation (AF) is the most common causal arrhythmia leading to TIC. However, the risk factors for the development of TIC due to AF remain unclear.
View Article and Find Full Text PDFPredicting factors for omitting beta-blockers in patients with tachycardia-induced cardiomyopathy after successful catheter ablation for atrial fibrillation.
Heart Vessels
August 2024
Department of Cardiovascular Medicine and Endocrinology and Metabolism, Faculty of Medicine, Tottori University, 36-1 Nishi-Cho, Yonago, 683-8504, Japan.
Tachycardia induces a reduction in the left ventricular ejection fraction (LVEF), which is defined as tachycardia-induced cardiomyopathy (TIC). Conversion to and maintenance of sinus rhythm by catheter ablation can improve LVEF in patients with TIC due to atrial fibrillation (AF). Beta-blockers are mandatory for the treatment of heart failure with reduced LVEF(HFrEF), but the necessity of beta-blockers in TIC patients even after catheter ablation remains unclear.
View Article and Find Full Text PDFClinical Features of Tachycardia-induced Cardiomyopathy in Patients with Atrial Fibrillation.
Intern Med
September 2024
Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Japan.
Objective Atrial fibrillation (AF) is the most common cause of tachycardia-induced cardiomyopathy (TIC). However, which patients with AF are prone to developing TIC remains unclear. In this study, we investigated the clinical features of AF patients with TIC.
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