Safety and Outcomes of Reoperative Robotic Tricuspid Valve Surgery.

Objective: Reoperative surgery for isolated tricuspid valve (TV) pathology has been associated with high morbidity and mortality rates; however, the current guidelines recommend intervention for severe, symptomatic TV regurgitation or mild to moderate symptoms with progressive right ventricular dysfunction. There are minimal data regarding reoperative intervention for TV disease. Similarly, there are no large series describing robot-assisted reoperative TV surgery.

Methods: Institutional Society of Thoracic Surgeons Adult Cardiac Surgery Database data were used to identify patients with previous cardiac surgery undergoing robot-assisted TV surgery from 2017 to 2022 from 2 tertiary referral hospitals. Patient demographics, preoperative characteristics, disease progression, operative details, and outcomes were analyzed. The primary outcome was 30-day mortality. Secondary outcomes were 30-day readmission, length of stay, and adverse events. Descriptive and summative statistics were used to describe clinical data and examine differences in outcomes of patients with primary versus secondary etiology using bivariate analyses.

Results: Twenty-four patients were divided into 2 arms, primary TV pathology and secondary dysfunction due to comorbid cardiac conditions. The overall mortality was 8.3%. Major complications, including respiratory failure, renal failure, and reoperation were 12.5%, 8.3%, and 8.3%, respectively. No permanent pacemakers were required, and the 30-day readmission rate was 4.5%.

Conclusions: Reoperative robotic TV surgery is a safe and viable alternative to traditional sternotomy for both primary and secondary TV pathology. TV repair and replacement are possible using the minimally invasive technique. The morbidity and mortality rates are acceptable when compared with traditional approaches with decreased need for pacemaker placement in the minimally invasive approach.