General

Mitral valve replacement using a collar-reinforced mitral prosthesis for severe mitral annular calcification, which secures implantation in both the supra-annular and intra-atrial positions: a case report

CONCLUSIONS: The present case suggests that mitral valve replacement using a collar-reinforced mitral prosthesis may be an effective technique for severe mitral annular calcification. To avoid catastrophic complications associated with treatment for severely calcified annulus, it is crucial to make a prudent preoperative decision regarding the surgical strategy under circumstances where conventional mitral valve replacement is impossible.
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