2020 · TRANSPLANTATION PROCEEDINGS

Effects of Obesity on Postoperative Complications and Graft Survival After Kidney Transplantation

Fellmann, Marie, Balssa, Loic, Clement, Elise, Frey, Pierre, Frontczak, Alexandre, Bernardini, Stephane, Chabannes, Eric, Guichard, Guillaume, Bittard, Hugues, Kleinclauss, Francois

Journal
TRANSPLANTATION PROCEEDINGS
Année
2020
Volume
52
Numéro
10
Pages
3153-3159
Mois
DEC
DOI
10.1016/j.transproceed.2020.02.178

Abstract

Objective. The objective of this study was to analyze the effects of obesity on post-operative complications and patient and graft survival after kidney transplantation. Methods. We retrospectively included 506 patients who received a kidney transplant in our center during eleven years. Obesity was defined by a body mass index >= 30 kg/m(2) based on World Health Organization criteria. Using univariate and multivariate analyses, we evaluated the impact of obesity on surgical complications according to the Clavien-Dindo classification up to 30 days after surgery. The impact of obesity on graft and patient survival was assessed using a Cox proportional regression model. Results. Seventy-one patients were obese (14%), and mean follow-up was 63.1 months (59.7-66.5). By multivariable analysis, obesity was associated with delayed graft function (hazard ratio [HR] = 2.60 [1.31-5.02], P = .004). Obesity was not associated with surgical complications, but cardiovascular history was (HR = 1.68 [1.09-2.99], P = .048). By Cox regression analysis, obesity was significantly associated with a higher risk of graft loss (HR = 1.55 [1.06-2.99], P = .042) but not with patient survival (HR = 1.82 [0.88-3.79], P = .106). Conclusion. Obesity was associated with delayed graft function and graft loss. However, it was not associated with surgical complications. Kidney transplantation remains the best therapy for obese patients suffering from end-stage renal disease, despite shorter graft survival.

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