Low power ablation for left coronary cusp ventricular tachycardia-Efficacy and long-term outcome.

ABSTRACT:

Background

The left coronary cusp is an uncommon but well-known site for the ablation of idiopathic ventricular tachycardia (VT). Proximity to the left coronary ostium makes ablation of this arrhythmia challenging. Different power settings have been described by various operators. Our objective was to describe the outcomes with low power ablation.

Methods

Once mapping confirmed origin from the left coronary cusp, ablation was performed if the best site was situated at least 5 mm from the left coronary ostium. Ablation was started at 15 W and, if successful, was stopped after 30 s. When required, higher powers were used up to 30 W.

Results

Ten patients with VT or premature ventricular beats mapped to the left coronary cusp were included in the study. No ablation was pe

SUBMITTER: Jagadheesan KS 

PROVIDER: S-EPMC6309714 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature