Chimney Mitral Valve Replacement for Mitral Stenosis with Severe Mitral Annulus Calcification

VernacularTitle:高度僧帽弁輪石灰化を伴う僧帽弁狭窄症に対するChimney MVRの1例
Author: Ryoko ARAKAKI ¹ ; Akino UEJO ¹ ; Kojiro FURUKAWA ² ; Toru UEZU ¹
Author Information

1. Department of Cardiovascular Surgery, Makiminato Chuo Hospital
2. Department of Thoracic and Cardiovascular Surgery, Graduate School of Medicine, University of the Ryukus
Keywords: mitral annular calcification; mitral stenosis; chimney mitral valve replacement
From:Japanese Journal of Cardiovascular Surgery 2026;55(1):11-13
CountryJapan
Language:Japanese
Abstract: A 72-year-old woman with multiple comorbidities was diagnosed with severe aortic stenosis (AS) and mitral stenosis (MS). Contrast-enhanced computed tomography revealed remarkable calcification of the annulus from the posterior leaflet to the posterior commissure. Considering the potentially fatal complications associated with excising the calcification, chimney mitral valve replacement (MVR) was performed. Furthermore, aortic valve replacement was performed for severe AS. Transthoracic echocardiography 14 months after surgery revealed normal valve motion and no perivalvular regurgitation. Thus, chimney MVR was deemed useful for MS with severe mitral annular calcification, as in this case.