Japanese Journal of Cardiovascular Surgery
Online ISSN : 1883-4108
Print ISSN : 0285-1474
ISSN-L : 0285-1474
Case Reports [Acquired Cardiovascular Surgery]
Mitral Valve Replacement while Preserving Calcified Annulus in Severe Mitral Annular Calcification
Hiroya MatabeTomoyuki MinamiNaoto YabuIchiya YamazakiShinichi Suzuki
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2022 Volume 51 Issue 5 Pages 300-303

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Abstract

A 70-years-old woman who had been on hemodialysis for 8 years was referred to our institution to undergo mitral surgery for mitral valve stenosis. Intraoperative investigations confirmed severe calcification of the posterior mitral leaflet and all-around mitral annulus. We excised the mitral leaflet using the Ultrasonic Surgical System and preserved the calcified annulus to prevent a fatal complication such as left ventricular rupture. We passed 2-0 polyester mattress sutures through the calcified annulus from the left ventricle to the left atrium, and mitral valve replacement was performed using a reversed 19 mm On-X mechanical heart valve for the aortic valve. The postoperative course was uneventful. Mitral annular calcification is a factor of fatal complications such as left ventricle rupture and coronary artery injury. We succeeded in preserving the calcified annulus and using a small diameter mechanical heart valve.

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© 2022 The Japanese Society for Cardiovascular Surgery
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