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Mitral Valve Replacement for Bulky, Calcified Mitral Annulus: A Case Report
Yusuke Nakata1, Kazuyuki Miyamoto1
1Department of Cardiovascular Surgery, Fukuoka Red Cross Hospital, Fukuoka, Japan.
Journal of Chest Surgery
|June 5, 2024
Summary
Mitral valve annulus calcification is common in dialysis patients. This case report details a successful mechanical mitral valve replacement for severe calcification, improving cardiac function in a high-risk patient.
Area of Science:
- Cardiology
- Cardiovascular Surgery
Background:
- Mitral valve annulus calcification (MAC) is a prevalent complication in patients undergoing dialysis.
- The increasing prevalence of dialysis necessitates effective surgical strategies for severe MAC.
- Severe MAC can lead to significant mitral stenosis and regurgitation, impacting cardiac function.
Observation:
- A 61-year-old male on dialysis presented with exertional chest pain due to severe mitral stenosis and regurgitation.
- Cardiac echocardiography confirmed severe MAC with cardiac dysfunction.
- Surgical intervention was required for management of the symptomatic severe MAC.
Findings:
- A mechanical mitral valve was successfully implanted in a supra-annular position after ultrasonic aspiration of the extensive calcification.
- The procedure involved suturing the valve to the left atrium wall to manage regurgitation.
- Postoperative assessment revealed no perivalvular leak and improved cardiac function.
Implications:
- This case demonstrates the feasibility of mechanical mitral valve replacement in high-risk dialysis patients with extensive circumferential MAC.
- Minimizing decalcification, even with myocardial involvement, allows for successful valve replacement.
- This surgical approach expands treatment options for complex cardiac conditions in end-stage renal disease patients.
Keywords:
Case reportsMechanical valveMitral annular calcificationMitral valve insufficiencyMitral valve replacementMitral valve stenosisMore Related Videos
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