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Commissuroplasty: a method of valve repair for mitral and tricuspid endocarditis
1Department of Cardiothoracic Surgery, Westmead Hospital & Royal Alexandra Hospital for Children, Sydney, Australia.
Background:
We describe our experience with a technique of cusp commissuroplasty to reconstruct atrioventricular valves damaged by endocarditis of the commissure and adjacent cusps.
Methods:
We operated on 3 patients with mitral endocarditis and one patient with previous tricuspid endocarditis. Infected leaflet tissue was excised from each side of the commissure, leaving a defect between one quarter and one third of the valve area. Using the technique of valve commissuroplasty, leaflet remnants were reapposed at the cut edges to obliterate the commissure. The residual D-shaped defect between the apposed leaflets and annulus was either closed directly or patched with pericardium, depending on the size of the defect.
Results:
Constructing unicommissural mitral and bicuspid tricuspid valves restored leaflet continuity. One patient was lost to follow-up. Postoperative echocardiography performed at a mean interval of 14.7 months showed competent and nonobstructed valves. There was no recurrent endocarditis at a mean follow-up time of 15.7 months.
Conclusions:
The technique of cusp commissuroplasty can be used to reconstruct atrioventricular valves that have been damaged by endocarditis of the commissure and adjacent cusps.
Insights
Cusp commissuroplasty effectively reconstructs atrioventricular valves damaged by endocarditis. This surgical technique restores valve function and prevents recurrent endocarditis in patients with complex valve damage.
Area of Science:
- Cardiac Surgery
- Valvular Heart Disease
- Infective Endocarditis
Background:
- Endocarditis frequently damages atrioventricular valve commissures and adjacent cusps.
- Surgical reconstruction of these damaged valves presents significant challenges.
Purpose of the Study:
- To evaluate the efficacy of cusp commissuroplasty for reconstructing atrioventricular valves affected by endocarditis.
- To assess the functional outcomes and recurrence of infection after the procedure.
Main Methods:
- The study involved 4 patients with endocarditis (3 mitral, 1 tricuspid).
- Infected leaflet tissue was excised, creating a defect.
- Leaflet remnants were reapposed, and residual defects were closed or patched.
Main Results:
- Valve reconstruction resulted in unicommissural mitral and bicuspid tricuspid valves with restored leaflet continuity.
- Postoperative echocardiography at a mean of 14.7 months showed competent, nonobstructed valves.
- No recurrent endocarditis was observed at a mean follow-up of 15.7 months.
Conclusions:
- Cusp commissuroplasty is a viable technique for reconstructing atrioventricular valves damaged by endocarditis.
- The procedure effectively restores valve competence and prevents reinfection.