Midterm analysis of tricuspid regurgitation in patients undergoing transcatheter mitral valve-in-valve replacement: A retrospective study

Objective: The evolution of concomitant tricuspid regurgitation (TR) after transcatheter mitral valve-in-valve replacement (TM-ViV) is poorly characterized. Therefore, we aimed to analyze the midterm changes in TR following TM-ViV at our center. Methods: Clinical data of patients who underwent TM-ViV at Guangdong Provincial People's Hospital was retrospectively analyzed. In total, 96 patients underwent TM-ViV between April 2020 and October 2023. Results: > .999). Conclusions: After TM-ViV surgery, the degree of TR decreased in a majority of patients who had moderate or severe TR preoperatively at midterm follow-up. However, due to limited statistical power, our exploratory analysis could not establish an association between preoperative TR and midterm mortality. Therefore, the prognostic influence of TR severity in this setting remains uncertain and requires validation in future studies.