Physical Performance Assessment in Kidney Transplant Evaluation

Frailty Syndrome

kidney transplantation, chronic kidney diseases, frailty

This prospective cohort study investigates physical frailty, assessed by the Short Physical Performance Battery (SPPB), in patients evaluated for kidney transplantation. The study aims to compare SPPB scores before listing, annually during the waiting period, and after transplantation at 6 and 12 months. It also includes a control group of dialysis patients not eligible for transplantation to evaluate differences in physical performance. The goal is to understand how frailty impacts transplant outcomes and patient recovery.

This longitudinal, prospective study focuses on assessing the role of physical frailty in patients undergoing evaluation for kidney transplantation using the Short Physical Performance Battery (SPPB). The study will enroll adult patients who are being assessed for kidney transplantation, including those who are deemed suitable and placed on the waiting list (Arm A) and those on dialysis who are considered unsuitable for transplant listing (Arm B). Participants will undergo comprehensive SPPB assessments at baseline, during their evaluation process, and subsequently at annual follow-up intervals. For listed patients, the assessments will be performed upon initial evaluation, then annually while on the waiting list, and at 6 and 12 months following transplantation. For patients ineligible for the transplant list and on dialysis, the SPPB will be recorded at baseline and then annually, allowing cross-sectional comparison and understanding of their physical performance trajectory. The primary objective is to evaluate changes in physical performance over time with the SPPB score, which ranges from 0 to 12. The scores will be used to categorize participants into frail, pre-frail, or non-frail groups, providing insights into the prevalence and evolution of frailty in this population. Secondary objectives include comparing the baseline and follow-up SPPB scores between the two arms, correlating physical performance with post-transplant outcomes such as graft function and survival, and identifying potential predictors of frailty that could inform prehabilitation interventions. This study may inform future strategies to optimize physical function in kidney transplant candidates and improve clinical outcomes through targeted interventions addressing physical frailty.

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