Preoperative loop length determination for mitral valve repair by 4-dimensional computed tomography.

ABSTRACT:

Objective

In the loop technique for mitral valve repair, the loop bundles are usually created during cardiac arrest after chordal length measurements, which seems time-consuming and less reproducible. To address this issue, we determined the loop length preoperatively using 4-dimensional computed tomography.

Methods

The loop length was determined on the basis of the distance from the papillary muscle head to the free margin of nonprolapsing leaflet corresponding to the prolapsed leaflet, to which the loops would be secured. Measurements were made on the commissural and long-axis views created by a medical image post-processor in the late systolic phase. This technique was used in consecutive 45 patients undergoing mitral valve repair with the loop technique since April 2021.

SUBMITTER: Tsuda K 

PROVIDER: S-EPMC11632332 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature