Contractility, ventriculoarterial coupling, and stroke work after acute myocardial infarction using CMR-derived pressure-volume loop data.

ABSTRACT:

Background

Noninvasive left ventricular (LV) pressure-volume (PV) loops derived by cardiac magnetic resonance (CMR) have recently been shown to enable characterization of cardiac hemodynamics. Thus, such PV loops could potentially provide additional diagnostic information such as contractility, arterial elastance (E_a ) and stroke work (SW) currently not available in clinical routine. This study sought to investigate to what extent PV-loop variables derived with a novel noninvasive method can provide incremental physiological information over cardiac dimensions and blood pressure in patients with acute myocardial infarction (MI).

Methods

A total of 100 patients with acute MI and 75 controls were included in the study. All patients underwent CMR 2-6 days after MI in

SUBMITTER: Nordlund D 

PROVIDER: S-EPMC10790509 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature