Mid-ventricular obstruction is associated with non-sustained ventricular tachycardia in patients with hypertrophic obstructive cardiomyopathy.

ABSTRACT:

Background

Mid-ventricular obstruction (MVO) is a rare subtype of hypertrophic cardiomyopathy (HCM) but it is associated with ventricular arrhythmia. The relationship between MVO and non-sustained ventricular tachycardia (NSVT) in HCM patients is unknown.

Hypothesis

The severity of MVO increases the incidence of NSVT in patients with hypertrophic obstructive cardiomyopathy (HOCM).

Methods

Five hundred and seventy-two consecutive patients diagnosed with HOCM in Fuwai Hospital between January 2015 and December 2017 were enrolled in this study. Holter electrocardiographic and clinical parameters were compared between HOCM patients with and without MVO.

Results

Seventy-six (13.3%) of 572 patients were diagnosed with MVO. Compared to patients without MVO, those with

SUBMITTER: Nie C 

PROVIDER: S-EPMC8027587 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature