The outcomes of valve-in-valve TMVR for patients with mitral bioprosthetic valve dysfunction: a single-center retrospective study

Objective: To explore the clinical efficacy and follow-up results of the valve-in-valve transcatheter mitral valve replacement (TMVR) technique in patients with mitral bioprosthetic valve dysfunction. Methods: The medical data of patients with biological valve dysfunction after mitral valve replacement who underwent TMVR in our hospital from January 2019 to January 2024 were retrospectively collected. The echocardiography data, New York Heart Association (NYHA) grade, EuroQol visual analogue scale (EQ-VAS) score, and 6-minute walking distance before and after the operation were compared. Results: < 0.05). Conclusion: Valve-in-valve TMVR is a feasible option for patients with degenerated bioprosthetic mitral valves. However, follow-up studies are still needed to determine the long-term effects.