Incidence, Predictors, and Prognostic Impact of Left Ventricular Outflow Tract Obstruction Following Transcatheter Aortic Valve Replacement.

ABSTRACT:

Background

Dynamic left ventricular outflow tract obstruction (LVOTO) following transcatheter aortic valve replacement (TAVR) is a potential complication that can cause severe hemodynamic instability. However, limited evidence is available regarding the incidence and predictors of LVOTO post-TAVR. This study aimed to clarify the incidence and identify the predictors of LVOTO following TAVR and to investigate whether LVOTO is associated with clinical outcomes.

Methods

This retrospective, single-centre study analyzed 2068 consecutive patients with aortic stenosis who underwent TAVR between January 2014 and December 2023. Transthoracic echocardiography was performed both before and after TAVR. LVOTO was defined as a peak pressure gradient exceeding 30 mm Hg.

Results

LVOT

SUBMITTER: Kobayashi Y 

PROVIDER: S-EPMC12457202 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature