Computed tomography-based selection of transseptal puncture site for percutaneous left atrial appendage closure.

ABSTRACT:

Background

An inferoposterior transseptal puncture (TSP) is generally recommended for percutaneous left atrial appendage (LAA) closure. However, the LAA is a highly variable anatomical structure. This may have an impact on the preferred TSP site.

Aims

This study aimed to determine the optimal TSP site for percutaneous LAA closure in different LAA morphologies.

Methods

In this prospective study, 182 patients undergoing percutaneous LAA closure were included. The spatial relationship of the LAA to the fossa ovalis and its consequence for TSP was assessed at preprocedural cardiac computed tomography (CCT).

Results

Based on CCT analysis, it was predicted that coaxial alignment between the delivery sheath and the LAA would be obtained by an inferoposterior, inferoce

SUBMITTER: Fukutomi M 

PROVIDER: S-EPMC9900448 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature