263 Minimally Invasive Non-Radical Nephrectomy for Benign Renal Disease: A Single Centre Experience Comparing Two Surgical Approaches

Abstract In our high-volume tertiary centre for renal disease, we perform in excess of 150 nephrectomies for benign or malignant disease per annum. In this study we compare outcomes between laparoscopic and retroperitoneoscopic minimally invasive (MI) approaches. We retrospectively reviewed our database of all patients who underwent MI non-radical nephrectomy over a 3-year period. Indication for surgery, conversion rate, operative time, blood loss, length of stay and post-operative complications were examined. A total of 61 MI nephrectomies were performed by three experienced minimal access surgeons. Indications for surgery included chronic infection, stone disease, tuberculosis, and obstruction associated with pain. Mean age was 51 years (range 22–89), 72% were female. The approach was laparoscopic in 62% and retroperitoneoscopic in 38%. Median operative time 137 minutes. The overall conversion rate was 3% (2 patients). Median blood loss 50ml's with 1.5% transfusion rate. Median length of stay was 2 days (1–69). There was no significant change in the renal function (P=0.32). Four patients developed Clavien-Dindo grade 3 complication. There was no recorded mortality in our series. We acknowledge this is a retrospective study that may be subject to selection bias, however our experience of this procedure in high volume centre with experienced operators shows that both laparoscopic and retroperitoneoscopic approaches are safe in performing MI non-radical nephrectomy with very low conversion rate.