Key result
Catheter ablation successfully eliminated frequent premature ventricular complexes in a 56-year-old woman with dilated cardiomyopathy, leading to a marked improvement in peak oxygen consumption from 14.0 to 22.2 ml/kg/min.
Why the study?
Reports on exercise tolerance after catheter ablation for premature ventricular complexes are few.
Does catheter ablation of frequent premature ventricular complexes improve exercise tolerance in a patient with dilated cardiomyopathy?
Case Report (n=1)
No
Does catheter ablation of frequent premature ventricular complexes improve exercise tolerance in a patient with dilated cardiomyopathy?
Catheter ablation of frequent premature ventricular complexes can markedly improve exercise tolerance in patients with cardiomyopathy.
May improve exercise tolerance post-PVC ablation in cardiomyopathy; hypothesis-generating and requires prospective trials.
BACKGROUND: Recent reports on catheter ablation for premature ventricular complex (PVC) or ventricular tachycardia in the context of cardiomyopathy suggest that ablation can improve cardiac function and decrease the number of PVCs. However, reports on exercise tolerance after catheter ablation for PVC are few. CASE: had markedly improved to 22 ml/kg/min 2 months after catheter ablation therapy. DISCUSSION: The elimination of frequent PVCs contributed to improved exercise tolerance.
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Miki et al. (2020) conducted a case report in Dilated cardiomyopathy with frequent premature ventricular complexes (n=1). Catheter ablation vs. Baseline (pre-ablation) was evaluated on Peak oxygen consumption (VO2) in ml/kg/min. Catheter ablation successfully eliminated frequent premature ventricular complexes in a 56-year-old woman with dilated cardiomyopathy, leading to a marked improvement in peak oxygen consumption from 14.0 to 22.2 ml/kg/min.
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