Delayed Mitral Prosthesis Dehiscence Following Transcatheter Aortic Valve Replacement.

ABSTRACT:

Background

The presence of preexisting mitral prosthesis in transcatheter aortic valve replacement (TAVR) raises concerns about potential valve interaction; however, this issue remains insufficiently explored.

Case summary

A 79-year-old man presented with hemolysis 8 months post-TAVR. He had a history of mitral valve replacement 16 years prior. Further investigation revealed severe paravalvular leakage of the mitral valve, which was attributed to the dehiscence of the mitral prosthesis. A retrospective review of pre-TAVR computed tomography images identified a subtle, previously undetected defect in the mitral-aortic intervalvular fibrosa, likely masked by neointima.

Discussion

We hypothesize that chronic mechanical stress between the TAVR device and the mitral-aortic

SUBMITTER: Kim S 

PROVIDER: S-EPMC12426539 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature