Concomitant tricuspid valve regurgitation repair in patients with minimally invasive mitral valve surgery: a single-centre experience in Vietnam

Background: This study aims to present the early and mid-term outcomes of combining Minimally Invasive Mitral Valve Surgery (MIMVS) with Tricuspid Valve Repair (TVR) at our center. Methods: From January 2017 to March 2022, our center treated a total of 67 patients with both MIMVS and TVR. Among these patients, 41 were women (61.2%), and 26 were men (38.8%). The average Euro SCORE II was 2.67±1.54%, and the patients had an average follow-up period of 25.45±16.2 months. Results: Pre-discharge echocardiography revealed no or mild TR in 82.8% of cases. The overall 30-day mortality rate was 4.5%, with 3 deaths. Five-year survival was 94.5%±3.2%. In patients with mild or moderate preoperative Tricuspid Regurgitation (TR), the five-year survival rate was 95.7%±4.3%, while for those with severe TR, it was 93.7%±4.5% ( P =0.947). Conclusions: Our five-year experience demonstrates that the combination of MIMVS and TVR can be routinely performed with favorable peri- and post-operative outcomes in patients undergoing non-high-risk surgery. Additionally, there is no significant difference in five-year survival between the severe TR and mild to moderate TR groups preoperatively.