Outcomes in Renal Cell Carcinoma With IVC Thrombectomy: A Multiteam Analysis Between an NCI-Designated Cancer Center and a Quaternary Care Teaching Hospital.

Introduction Interteam performance and Clavien-Dindo (C-D) complications in renal cell carcinoma with inferior vena cava thrombectomy (RCC-IVCT) have not been reported. We aimed to describe complications by the degree of complexity and surgical teams in a collaborative effort between a National Cancer Institute-designated Comprehensive Cancer Center and a Quaternary Care Teaching Hospital. Methods Between January 2011 and May 2019, 73 consecutive RCC-IVCT were included. C-D grades III or higher were captured. Teams involved were urologic-oncology, vascular, hepatobiliary/transplant, and cardiothoracic. The Mayo Clinic tumor thrombus classification was used. Results Overall complication rate was 42% (n = 31). Nineteen percent had grade III, 18% had grade IV, and 6% had grade V complications. Patients with level IV thrombus had the highest in-hospital mortality rate (75%). Thrombus level did not show a correlation to complication rates (14% level I, 45% level II, 32% level III, 42% level IV). A positive correlation found between the number of teams involved and complication rates (35% with 2-team, 59% with 3-team, P = .059). Thromboembolic events (6% vs 24%, P = .02) and disposition other than home (22% vs 48%, P = .01) were statistically lower for the 2-team groups. Two-team in-hospital mortality was 1/51 (2%) versus 3-team (3/22,14%, (P = .07). No statistical differences were found in infections, thromboembolic events, and grades of complications between surgical teams. Conclusions Despite similar interteam performance, the consistency of surgeons in high complexity cases could improve outcomes further. Complexity was higher for hepatobiliary/transplant and cardiothoracic teams. A combination of intraoperative events and patient selection (comorbidities and age) contributed to death. Overall, in-hospital mortality was lower than in most reported series.