Electrocardiographic criteria for localization of ventricular premature complexes from the inferior right ventricular outflow tract.

ABSTRACT:

Background

The ventricular premature complexes (PVCs) originating from the superior right ventricular outflow tract (RVOT) have high success rates by catheter ablation. It may not be the same when the origin is in the inferior RVOT.

Objective

To identify electrocardiographic (ECG) characteristics that predict the site for successful ablation of PVCs originating in the inferior RVOT.

Methods

Of 309 consecutive patients with symptomatic PVCs despite medical therapy, 124 had PVCs originating from the RVOT, and 107 RVOT cases without structural heart disease and no bundle branch block in sinus rhythm were enrolled in the study. Among them, 74 have a superior RVOT origin, and 33 have an inferior RVOT origin.

Results

The proportion with multiple morphologies of PVC w

SUBMITTER: Li K 

PROVIDER: S-EPMC9589426 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature