The relationship between baseline diastolic dysfunction and postimplantation invasive hemodynamics with transcatheter aortic valve replacement.

ABSTRACT:

Background

Abnormal invasive hemodynamics after transcatheter aortic valve replacement (TAVR) is associated with poor survival; however, the mechanism is unknown.

Hypothesis

Diastolic dysfunction will modify the association between invasive hemodynamics postTAVR and mortality.

Methods

Patients with echocardiographic assessment of diastolic function and postTAVR invasive hemodynamic assessment were eligible for the present analysis. Diastology was classified as normal or abnormal (Stages 1 to 3). The aorto-ventricular index (AVi) was calculated as the difference between the aortic diastolic and the left ventricular end-diastolic pressure divided by the heart rate. AVi was categorized as abnormal (AVi < 0.5 mmHg/beats per minute) or normal (≥ 0.5 mmHg/beats per minute).

SUBMITTER: Bavry AA 

PROVIDER: S-EPMC7724241 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature