Detection of latent obstruction in patients with hypertrophic cardiomyopathy using parameters derived from resting echocardiography.

ABSTRACT:

Background

Diagnosis of left ventricular outflow tract (LVOT) obstruction in hypertrophic cardiomyopathy (HCM) by echocardiography requires specific provocation tests. We aimed to explore the echocardiographic parameters (under resting conditions) associated with latent obstruction in patients with HCM.

Methods

Echocardiographic data of 138 patients (65 with resting obstruction, 38 with latent obstruction, and 35 without obstruction) with HCM were analyzed. Under the resting condition, parameters of basal septal morphology [IVSa (area of basal septum protruding into the LVOT), LA (depth of IVSa relative to the LVOT), LB (length of IVSa in the direction of the left ventricular long axis), and S-IVSa (IVSa divided by LB)], the angle between the mitral valvular orifice and asce

SUBMITTER: Tao J 

PROVIDER: S-EPMC12514714 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature