Pretransplant Malnutrition, Particularly With Muscle Depletion Is Associated With Adverse Outcomes After Kidney Transplantation

Author:

Lorden Heather1,Engelken Jessa1,Sprang Katrina1,Rolfson Megan1,Mandelbrot Didier2,Parajuli Sandesh2ORCID

Affiliation:

1. Division of Transplantation, Department of Clinical Nutrition, UW Health Hospital and Clinics, Madison, WI.

2. Division of Nephrology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI.

Abstract

Background. Kidney transplant centers lack consistent diagnostic malnutrition tools. The Academy of Nutrition and Dietetics and American Society of Parenteral Nutrition Adult Malnutrition Criteria (AMC) is the widely accepted and utilized tool by Registered Dietitian Nutritionists (RDNs) to diagnose malnutrition. Methods. In this single-center, retrospective observational study, we evaluated the outcomes of prekidney transplant malnutrition based on Academy of Nutrition and Dietetics and American Society of Parenteral Nutrition AMC, as well as the individual components of the AMC, on posttransplant outcomes including length of stay, delayed graft function (DGF), early readmission, cardiovascular events, acute rejection, death-censored graft failure, and death. Bivariable and multivariable logistic regression models were used to assess the association of malnutrition or its components with outcomes of interest. Results. A total of 367 recipients were included, of whom 36 (10%) were malnourished (23 moderately and 13 severely) at pretransplant evaluation. In adjusted models, pretransplant malnutrition was significantly associated with increased risk for early readmission (adjusted odds ratio 2.86; 95% confidence interval: 1.14-7.21; P = 0.03) and with DGF (adjusted odds ratio 8.33; 95% confidence interval: 1.07-64.6; P = 0.04). Muscle depletion was also associated with an increased risk for readmission and with DGF. Fat depletion and reduced functionality in the adjusted model were only associated with increased risk for readmission. Conclusions. Malnutrition could be an important consideration for selecting kidney transplant recipients because it was associated with poor clinical outcomes. A multidisciplinary approach with the involvement of RDNs to outline a nutrition intervention plan may help mitigate some of the poor outcomes.

Publisher

Ovid Technologies (Wolters Kluwer Health)

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