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Combined Mitral and Tricuspid Valve Surgery Performed via a Right Minithoracotomy Approach

Objective Combined mitral and tricuspid valve surgery is associated with an increased perioperative morbidity and mortality. We evaluated the outcomes of a less invasive right minithoracotomy approach in patients undergoing primary or reoperative double-valve surgery. Methods We retrospectively evaluated 132 consecutive patients with mitral and tricuspid valve disease who underwent double-valve surgery via a right minithoracotomy at our institution between January 2009 and April 2014. Results The cohort included 81 female (61%) and 51 male (39%) patients, with a mean ± SD age of 67 ± 13 years. The mean ± SD preoperative left ventricular ejection fraction, mitral regurgitation grade, and creatinine were 53% ± 12%, 3.8 ± 0.6, and 1.26 ± 1.17, respectively. The patients underwent primary (88%) or reoperative (12%) mitral and tricuspid valve surgery, which consisted of 88 mitral repairs (67%), 44 mitral replacements (33%), 131 tricuspid repairs (99%), and 1 tricuspid replacement (1%). Postoperatively, there were 6 cases of acute kidney injury (5%), 6 reoperations for bleeding (5%), 4 cerebrovascular accidents (3%), and 12 cases of atrial fibrillation (9%). The median intensive care unit length of stay and total hospital lengths of stay were 61 hours (interquartile range, 43–112 hours) and 8 days (interquartile range, 6–13 days), respectively. The in-hospital mortality was 4%. Actuarial survival at 1 and 5 years was 93% and 88%, respectively. Conclusions In patients undergoing primary or reoperative mitral and tricuspid valve surgery, a right minithoracotomy approach is associated with a low perioperative morbidity and good midterm survival.