Assessment of ventricular systolic rotation and deformation in premature ventricular contractions of different origins via three-dimensional speckle tracking imaging.

ABSTRACT:

Background

Frequent premature ventricular contractions (PVCs) can induce cardiomyopathy; however, there is a lack of early indicators to assess the cardiac functional impact of PVCs originating from different sites. This study employed three-dimensional speckle-tracking imaging (3D-STI) to compare myocardial torsion and deformation characteristics of PVCs from varying origins during sinus beats, PVC beats, and compensatory beats, with the aim of examining the early indicators of cardiac function.

Methods

Ninety-one patients (28 males, 63 females) with single-source PVCs who underwent successful radiofrequency ablation were enrolled. Preoperative echocardiographic parameters were collected, including mitral inflow velocity (E/A), tissue Doppler indices (EmS, EmL, and E/e'), a

SUBMITTER: Zhou L 

PROVIDER: S-EPMC12514667 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature