Abstract
BACKGROUND: Transoesophageal echocardiography (TOE) provides accurate evaluation of mitral valve (MV) function following mitral transcatheter edge-to-edge repair (M-TEER) and may better detect complications in case of suboptimal result.
AIMS: We aimed to evaluate midterm anatomical changes and structural complications after M-TEER using TOE and investigate their association with clinical outcomes at 2 years.
METHODS: A follow-up TOE at 6 months was systematically recommended to all patients included in our institutional prospective M-TEER registry until December 2021. We assessed changes in the incidence of mitral regurgitation (MR), MV stenosis (≥5 mmHg), and partial or complete single leaflet device attachment (SLDA) between the index procedure and follow-up and evaluated MV area and annular dimensions in a subset of patients with available three-dimensional (3D) datasets. The clinical endpoint was a composite of mortality and heart failure (HF) rehospitalisation at 2 years.
RESULTS: Among the 373 patients included in the registry between February 2012 and December 2021, 128 patients (34%) underwent elective TOE at 6 months. Using TOE, severe MR was observed in 13.3% (n=17) of the patients. The number of patients...
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