Associations of Electromechanical Activation Time With Cardiac Structure and Function and Clinical Outcomes.

ABSTRACT:

Background

The electromechanical activation time (EMAT) measured by acoustic cardiography is the time between QRS onset and the first heart sound. Increased EMAT is associated with a reduced left ventricular ejection fraction (LVEF).

Objectives

The objective of the study was to determine whether EMAT has utility as a cardiovascular (CV) screening test in the community.

Methods

Participants (n = 3,401) in Dallas Heart Study-2 had acoustic cardiography, cardiac magnetic resonance imaging, and blood sampling at baseline. Clinical outcomes, including a composite of CV death/heart failure (HF) hospitalization or major adverse clinical events (CV death, HF hospitalization, nonfatal myocardial infarction, stroke, and atrial fibrillation), were ascertained after a median foll

SUBMITTER: Munch J 

PROVIDER: S-EPMC12702212 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature