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Mitral regurgitation caused by mitral paraannular cyst
S Sekine1, T Abe, R Kuribayashi
1Department of Cardiovascular Surgery, Akita University School of Medicine, Japan.
The Journal of Heart Valve Disease
|January 1, 1997
Summary
A rare case of mitral regurgitation caused by a mitral paraannular cyst in a dialysis patient is presented. Surgical intervention successfully treated the cyst and valve dysfunction, with no recurrence noted.
Area of Science:
- Cardiology
- Cardiac Surgery
- Nephrology
Background:
- Mitral regurgitation (MR) is a significant valvular heart disease. Patients with end-stage renal disease on hemodialysis are at increased risk for cardiovascular complications, including valvular issues.
- While mitral annular calcification is a known cause of MR in uremic patients, intracardiac cysts are rarely reported as an etiology.
Observation:
- A 37-year-old woman on maintenance hemodialysis presented with congestive heart failure.
- Echocardiography identified a mitral paraannular cyst obstructing mitral leaflet coaptation, leading to severe MR.
Findings:
- The patient underwent successful surgical decapsulation of the cyst and mitral valve replacement.
- Postoperative follow-up at three years showed no cyst recurrence and resolution of MR.
Implications:
- This case highlights a rare cause of severe MR in a dialysis patient, emphasizing the importance of comprehensive echocardiographic evaluation.
- Prompt surgical management can effectively resolve MR caused by mitral paraannular cysts, improving patient outcomes.