The QT interval is associated with incident cardiovascular events: the MESA study.

ABSTRACT:

Background

Prolonged heart rate-corrected QT interval on electrocardiograms (ECGs) is associated with increased risk of myocardial infarction and cardiovascular disease (CVD)-related deaths in patients with prevalent coronary heart disease.

Objectives

This study sought to examine the prognostic association between the baseline QT interval and incident cardiovascular events in individuals without prior known CVD.

Methods

The corrected baseline 12-lead ECG QT interval duration (QTcorr) was determined by adjustment for age, sex, race/ethnicity, and RR interval duration in 6,273 participants in MESA (Multi-Ethnic Study of Atherosclerosis). Cox proportional hazards models adjusting for demographic and clinical risk factors were used to examine the association of baseline Q

SUBMITTER: Beinart R 

PROVIDER: S-EPMC4254697 | biostudies-literature | 2014 Nov 18-25

REPOSITORIES: biostudies-literature