Valve-in-Chimney Mitral Valve Replacement for Extensive Annular Calcification.

Tom, Stephanie K; Norton, Elizabeth L; Gleason, Patrick; Guyton, Robert A · Ann Thorac Surg · 2026

case_report · Level V

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Abstract

Mitral annular calcification poses notable challenges for mitral valve replacement, especially in patients with small annular orifices. We present a case of a 69-year-old woman with severe mitral annular calcification and mitral stenosis, successfully treated using a valve-in-chimney technique. This approach minimized calcium debridement and enabled secure bioprosthesis placement larger than that which could have been placed with other options.

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