Tricuspid valve surgery

INTRODUCTION: The tricuspid valve has been taken as a non-critical valve in terms of acute or late mortality in a number of conditions. Tricuspid functional regurgitation is a cause of late operations with an increased morbidity. A number of techniques have been described and used in clinical practice in the past forty years and include simple suture techniques and the use of support for annuloplasty with the use of different types of prosthetic rings. The experience accumulated over the years indicates that tricuspid annuloplasty is mandatory to improve late results, which are superior, in general, to replacement of the valve. METHODS: The role of echocardiography in defining surgical planning, intraoperative results and follow-up is reviewed as echocardiography is a fundamental tool in cardiac surgery. Surgery for isolated lesions of the tricuspid valve has not received much attention and herein we report the results of the follow-up of a limited series of patients undergoing isolated tricuspid surgery. RESULTS: The correlation between echocardiographic measurements and surgical measurements was confirmed and was helpful at the time of the confirmation of repair (r=0.53). Forty-seven patients (18 repair, 29 replacement) underwent isolated surgery. Results of isolated tricuspid repair seemed to be superior when compared to those of tricuspid replacement. Survival was 20.7% for tricuspid valve replacement (N=18) and 50% for tricuspid valve repair (N=29) (p=0.04). Freedom from reoperation was 94.4±5.4% for repair and 67.3±12.1% for replacement (p= 0.0011). CONCLUSIONS: The tricuspid valve continues to be a surgical challenge.