Impact of asymmetric tethering on outcomes after edge-to-edge mitral valve repair for secondary mitral regurgitation.

ABSTRACT:

Background

The impact of postero-anterior and medio-lateral mitral valve (MV) tethering patterns on outcomes in patients undergoing transcatheter edge-to-edge repair (M-TEER) for secondary mitral regurgitation (SMR) is unknown.

Methods

The ratio of the posterior to anterior MV leaflet angle (PLA/ALA) in MV segment 2 was defined as postero-anterior tethering asymmetry. Medio-lateral tethering asymmetry was assessed as the ratio of the medial (segment 3) to lateral (segment 1) MV tenting area. We used receiver-operating characteristics and a Cox regression model to identify cut-off values of asymmetric anteroposterior and medio-lateral tethering for prediction of 2 year all-cause mortality after TMVR.

Results

Among 178 SMR patients, postero-anterior tethering was asymme

SUBMITTER: Stolz L 

PROVIDER: S-EPMC9334427 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature