Simultaneous ipsilateral nephrectomy during kidney transplantation in autosomal dominant polycystic kidney disease: a matched pair analysis of 193 consecutive cases

BACKGROUND: In end-stage renal transplant recipients with autosomal-dominant polycystic kidney disease (ADPKD), the imperative, optimal timing, and technique of native nephrectomy remains under discussion. The Freiburg Transplant Center routinely performs a simultaneous ipsilateral nephrectomy. METHODS: From April 1998 to May 2017, we retrospectively analyzed 193 consecutive ADPKD recipients, receiving per protocol simultaneous ipsilateral nephrectomy and compared morbidity, mortality, and outcome with 193 non-ADPKD recipients of a matched pair control. RESULTS: The incidence of surgical complications was similar with respect to severe medical, surgical, urological, vascular, and wound-related complications as well as reoperation rates and 30-day mortality. Intraoperative blood transfusions were required more often in the ADPKD (22.8%) compared with the control group (6.7%; p < 0.0001). Early postoperative urinary tract infections occurred more frequent (ADPKD 40.4%/control 29.0%; p = 0.0246). Time of surgery was prolonged by 30 min (ADPKD 169 min; 95%CI 159.8–175.6 min/control 139 min; 95%CI 131.4–145.0 min; p < 0.0001). One-year patient (ADPKD 96.4%/control 95.8%; p = 0.6537) and death-censored graft survival (ADPKD 94.8%/control 93.7%; p = 0.5479) were comparable between both groups. CONCLUSIONS: With respect to morbidity and mortality, per protocol, simultaneous native nephrectomy is a safe procedure. Especially in asymptomatic ADPKD KTx recipients, the number of total operations can be reduced and residual diuresis preserved up until transplantation. In living donation, even preemptive transplantation is possible.