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Ann Thorac Surg 2006;82:1735-1741
© 2006 The Society of Thoracic Surgeons

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Original Articles: Cardiovascular

Midterm Outcomes of Tricuspid Valve Repair Versus Replacement for Organic Tricuspid Disease

^a Divisions of Cardiac Surgery of the University of Toronto, Toronto, Ontario, Canada
^b Toronto General Hospital, Toronto, Ontario, Canada
^c The Hospital for Sick Children, Toronto, Ontario, Canada

Accepted for publication June 2, 2006.

^_* Address correspondence to Dr Borger, Toronto General Hospital, Room 4N-451, 200 Elizabeth Street, Toronto, Ontario, Canada M5G 2C4 (Email: michael.borger{at}uhn.on.ca).

Presented at the Forty-second Annual Meeting of The Society of Thoracic Surgeons, Chicago, IL, Jan 30–Feb 1, 2006.

BACKGROUND: Organic tricuspid valve (TV) disease is uncommon. Few studies have compared TV repair with replacement in these patients. The current study compared midterm outcomes of TV repair versus replacement in a large group of patients with organic tricuspid disease.

METHODS: Two-hundred and fifty patients underwent surgery for organic TV disease at our institution from 1979 to 2003. Clinical and echocardiographic follow-up were obtained, were 99% complete, and were 5.2 ± 4.1 years long (mean ± standard deviation).

RESULTS: One hundred and seventy-eight patients (71%) underwent TV repair and 72 (29%) received TV replacement (54 bioprosthetic, 18 mechanical). Repair patients were more likely to have hypertension, rheumatic pathology, or elective surgery. Concomitant procedures included mitral (50% of patients), aortic (26%), and coronary bypass (6%) operations. Perioperative and midterm mortality were higher in the replacement group (both p < 0.001). Cox regression analysis revealed TV replacement as an independent predictor of midterm mortality (hazard ratio: 5.1, 95% confidence interval: 2.9 to 9.1, p < 0.001) and decreased event-free survival (hazard ratio: 2.0, 95% confidence interval: 1.1 to 3.6, p = 0.02). Follow-up echocardiography revealed more moderate to severe tricuspid regurgitation in repair patients (38% vs 5%, p < 0.001), but no difference in New York Heart Association functional class or reoperation rates.

CONCLUSIONS: Tricuspid valve repair is associated with better perioperative, midterm, and event-free survival than TV replacement in patients with organic tricuspid disease. Despite more tricuspid regurgitation in the repair group during follow-up, reoperation rates and functional class were similar. Repair should be performed whenever possible in patients with organic tricuspid disease.

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