Outcomes of nephron-sparing surgery in T1 vs T2 renal tumours

Objective: To compare the drop in eGFR after nephron-sparing surgery in T1 and T2 renal tumours. Study Design: Descriptive study. Place and Duration of Study: Department of Uro-oncology, Sindh Institute of Urology, and Transplantation Karachi, from March 2020 to March 2021. Methodology: Retrospective data were collected for all patients who underwent nephron-sparing surgery between 2014 to 2019. Eighty-seven patients were divided into two groups based on the T stage of renal tumours (T1 ≤7 cm and T2 >7 cm). The outcomes of the two groups were compared such as eGFR, blood transfusion, hospital stay and complications. Results: There was a higher drop in eGFR in T2 tumours when compared to T1 tumours at 1 year of follow-up. There were more perioperative complications, higher blood transfusions and longer hospital stays for T2 tumours. Conclusion: Nephron sparing surgery for T2 renal tumours carries lower eGFR preservation, higher blood transfusions and complications when compared to T1 tumours. The indication for such extensive surgery should be individualized to specific contexts only. (author)