BACKGROUND: We evaluated outcomes of super-obese patients (BMI > 50) undergoing kidney transplantation in the US. METHODS: We performed a review of 190 super-obese patients undergoing kidney transplantation from 1988 through 2013 using the UNOS dataset. RESULTS: Super-obese patients had a mean age of 45.7 years (21-75 years) and 111 (58.4 %) were female. The mean BMI of the super-obese group was 56 (range 50.0-74.2). A subgroup analysis demonstrated that patients with BMI > 50 had worse survival compared to any other BMI class. The 30-day perioperative mortality and length of stay was 3.7 % and 10.09 days compared to 0.8 % and 7.34 days in nonsuper-obese group. On multivariable analysis, BMI > 50 was an independent predictor of 30-day mortality, with a 4.6-fold increased risk of perioperative death. BMI > 50 increased the risk of delayed graft function and the length of stay by twofold. The multivariable analysis of survival showed a 78 % increased risk of death in this group. Overall patient survival for super-obese transplant recipients at 1, 3, and 5 years was 88, 82, and 76 %, compared to 96, 91, 86 % on patients transplanted with BMI < 50. A propensity score adjusted analysis further demonstrates significant worse survival rates in super-obese patients undergoing kidney transplantation. CONCLUSION: Super-obese patients had prolonged LOS and worse DGF rates. Perioperative mortality was increased 4.6-fold compared to patients with BMI < 50. In a subgroup analysis, super-obese patients who underwent kidney transplantation had significantly worse graft and patient survival compared to underweight, normal weight, and obesity class I, II, and III (BMI 40-50) patients.
BACKGROUND: We evaluated outcomes of super-obesepatients (BMI > 50) undergoing kidney transplantation in the US. METHODS: We performed a review of 190 super-obesepatients undergoing kidney transplantation from 1988 through 2013 using the UNOS dataset. RESULTS: Super-obesepatients had a mean age of 45.7 years (21-75 years) and 111 (58.4 %) were female. The mean BMI of the super-obese group was 56 (range 50.0-74.2). A subgroup analysis demonstrated that patients with BMI > 50 had worse survival compared to any other BMI class. The 30-day perioperative mortality and length of stay was 3.7 % and 10.09 days compared to 0.8 % and 7.34 days in nonsuper-obese group. On multivariable analysis, BMI > 50 was an independent predictor of 30-day mortality, with a 4.6-fold increased risk of perioperative death. BMI > 50 increased the risk of delayed graft function and the length of stay by twofold. The multivariable analysis of survival showed a 78 % increased risk of death in this group. Overall patient survival for super-obese transplant recipients at 1, 3, and 5 years was 88, 82, and 76 %, compared to 96, 91, 86 % on patients transplanted with BMI < 50. A propensity score adjusted analysis further demonstrates significant worse survival rates in super-obesepatients undergoing kidney transplantation. CONCLUSION: Super-obesepatients had prolonged LOS and worse DGF rates. Perioperative mortality was increased 4.6-fold compared to patients with BMI < 50. In a subgroup analysis, super-obesepatients who underwent kidney transplantation had significantly worse graft and patient survival compared to underweight, normal weight, and obesity class I, II, and III (BMI 40-50) patients.
Authors: L X Jin; S C Pitt; M B Doyle; C Klein; S Shenoy; J A Lowell; W C Chapman; J R Wellen Journal: Transplant Proc Date: 2014 Jan-Feb Impact factor: 1.066
Authors: William M Bennett; Kevin M McEvoy; Karen R Henell; Sudha Pidikiti; Viken Douzdjian; Thomas Batiuk Journal: Clin Transplant Date: 2010-10-14 Impact factor: 2.863
Authors: Christopher W Glanton; Tzu-Cheg Kao; David Cruess; Lawrence Y C Agodoa; Kevin C Abbott Journal: Kidney Int Date: 2003-02 Impact factor: 10.612
Authors: Gabriel C Oniscu; Daniel Abramowicz; Davide Bolignano; Ilaria Gandolfini; Rachel Hellemans; Umberto Maggiore; Ionut Nistor; Stephen O'Neill; Mehmet Sukru Sever; Muguet Koobasi; Evi V Nagler Journal: Nephrol Dial Transplant Date: 2021-12-24 Impact factor: 5.992