Differences in the upslope of the precordial body surface ECG T wave reflect right to left dispersion of repolarization in the intact human heart.

ABSTRACT:

Background

The relationship between the surface electrocardiogram (ECG) T wave to intracardiac repolarization is poorly understood.

Objective

The purpose of this study was to examine the association between intracardiac ventricular repolarization and the T wave on the body surface ECG (SECG_TW).

Methods

Ten patients with a normal heart (age 35 ± 15 years; 6 men) were studied. Decapolar electrophysiological catheters were placed in the right ventricle (RV) and lateral left ventricle (LV) to record in an apicobasal orientation and in the lateral LV branch of the coronary sinus (CS) for transmural recording. Each catheter (CS, LV, RV) was sequentially paced using an S1-S2 restitution protocol. Intracardiac repolarization time and apicobasal, RV-LV, and transmur

SUBMITTER: Srinivasan NT 

PROVIDER: S-EPMC6546969 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature