• Annals of surgery · May 2017

    Comparative Study Observational Study

    A Novel Approach in Combined Liver and Kidney Transplantation With Long-term Outcomes.

    • Burcin Ekser, Richard S Mangus, W Fridell, Chandrashekhar A Kubal, Shunji Nagai, Sandra B Kinsella, Demetria R Bayt, Teresa M Bell, John A Powelson, William C Goggins, and A Joseph Tector.
    • *Department of Surgery, Transplant Division, Indiana University School of Medicine, Indianapolis, IN†Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN‡Department of Surgery, Indiana University School of Medicine, Indianapolis, IN.
    • Ann. Surg. 2017 May 1; 265 (5): 1000-1008.

    ObjectiveThe aim of this study was to compare the outcomes of simultaneous and delayed implantation of kidney grafts in combined liver-kidney transplantation (CLKT).Background DataDelayed function of the renal graft (DGF), which can result from hypotension and pressor use related to the liver transplantation (LT), may cause worse outcomes in CLKT.MethodsA total of 130 CLKTs were performed at Indiana University between 2002 and 2015 and studied in an observational cohort study. All kidneys underwent continuous hypothermic pulsatile machine perfusion until transplant: 69 with simultaneous kidney transplantation (KT) (at time of LT, group 1) and 61 with delayed KT (performed at a later time as a second operation, group 2). All patients received continuous veno-venous hemodialysis during the LT. Propensity score match analysis in a 1:1 case-match was performed.ResultsMean kidney cold ischemia time was 10 ± 3 and 50 ± 15 hours, for groups 1 and 2 (P < 0.0001), respectively. The rate of DGF was 7.3% in group 1, but no DGF was seen in group 2 (P = 0.0600). Kidney function was significantly better in group 2, if the implantation of kidneys was delayed >48 hours (P < 0.01). Patient survival was greater in group 2 at 1 year (91%), and 5 year (87%) post-transplantation (P = 0.0019). On multivariate analysis, DGF [hazard ratio (HR), 165.7; 95% confidence interval (CI), 9.4-2926], extended criteria donor kidneys (HR, 15.9; 95% CI 1.8-145.2), and recipient hepatitis C (HR, 5.5; 95% CI 1.7-17.8) were significant independent risk factors for patient survival.ConclusionsDelayed KT in CLKT (especially if delayed >48 h) is associated with improved kidney function with no DGF post-KT, and improved patient and graft survival.

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