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Eur J Cardiothorac Surg 2001;20:577-582
© 2001 Elsevier Science NL

Tricuspid valve surgery for functional tricuspid valve regurgitation associated with left-sided valvular disease

Department of Thoracic and Cardiovascular Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo 060-0061, Japan

Received 25 October 2000; received in revised form 8 March 2001; accepted 4 May 2001.

Corresponding author. Tel.: +81-11-611-2111, ext. 3312; fax: +81-11-613-7318
e-mail: kuwaki{at}sapmed.ac.jp

Objectives: We have reviewed 260 patients who underwent initial tricuspid valve surgery for functional tricuspid valve regurgitation (TR) and analyzed independent predictors for early and late unfavorable results. Materials and methods: Between 1981 and 1998, 260 tricuspid valve operations were performed for functional TR. There were 94 males and 166 females with a mean age of 55 years. The tricuspid valve surgery procedures consisted of De Vega tricuspid annuloplasty in 240 patients, ring annuloplasty in four patients, and tricuspid valve replacement in 16 patients. The mean duration of follow-up was 7.8 years. Results: Hospital mortality was 8.9% (23 patients). Late deaths occurred in 34 patients including cardiac-related late deaths in 26 patients. The survival rates were 83±2% at 5 years and 78±3% at 10 years. Late tricuspid valve reoperation was performed on 13 patients due to residual or recurrent TR in 12 patients and thrombosed tricuspid bileaflet mechanical valve in one patient. The tricuspid valve reoperation-free survival rate was 90±2% at 5 years and 84±3% at 10 years. The only predictor of hospital mortality was preoperative highly elevated right atrial pressure (P=0.01). Variables predictive of cardiac-related late death were preoperative New York Heart Association (NYHA) class IV (P=0.01) and poor left ventricular ejection fraction (LVEF) (P=0.02). Residual TR of more than grade 2+ early after tricuspid annuloplasty was a significant risk factor for late tricuspid valve reoperation (P=0.01). Preoperative TR of grade 4+ was predictive of early residual TR (P=0.04). Conclusions: Tricuspid valve surgery for functional TR can be performed with acceptable levels of early mortality. Cardiac-related late mortality after tricuspid surgery may be improved by earlier surgical treatment before NYHA class IV or deterioration of LVEF occurs. To prevent late tricuspid reoperation, it is important not to leave residual TR of grade 2+ or more after tricuspid annuloplasty.

Key Words: Tricuspid valve regurgitation • Tricuspid valve surgery • Predictor of surgical results

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