Simple 2-dimensional anatomic model to predict the risk of coronary obstruction during transcatheter aortic valve replacement.

ABSTRACT:

Objective

In this study, a 2-dimensional (2D) index relying on preprocedural computed tomography (CT) data was developed to evaluate the risk of coronary obstruction during transcatheter aortic valve replacement (TAVR) procedures.

Methods

Anatomic measurements from pre-TAVR CT scans were collected in 28 patients among 600 who were flagged as high risk (defined as meeting coronary artery height, h, <14 mm and/or sinus of Valsalva diameter, SOVd, <30 mm) for coronary obstruction. A geometric model derived from these anatomic measurements was used to predict the post-TAVR native cusp apposition relative to the coronary ostium. The distance from the cusp to the coronary ostium, DLC_2D, was measured from the geometric model and indexed with the coronary artery diameter,

SUBMITTER: Heitkemper M 

PROVIDER: S-EPMC7434688 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature