Unmet Questions About Frailty in Kidney Transplant Candidates

Author:

Pérez-Sáez María José12,Pascual Julio234

Affiliation:

1. Nephrology Department, Hospital del Mar, Barcelona, Spain.

2. Nephropathies Research Group, Hospital del Mar Research Institute, Barcelona, Spain.

3. Department of Nephrology, Hospital Universitario 12 de Octubre, Madrid, Spain.

4. Institute for Research i+12, Madrid, Spain.

Abstract

Frailty occurs frequently among patients with advanced chronic kidney disease, especially among women. Assessing frailty in kidney transplant (KT) candidates is crucial for informing them about associated risks. However, there is poor agreement between frailty scales and research on their correlation with transplant outcomes. Being prefrail significantly impacts both graft and patient survival, often beginning with just 1 Fried criterion. Rather than viewing frailty as a categorical state, it should be regarded as a spectrum ranging from 1 to 5 criteria, with the risk of adverse outcomes escalating as frailty worsens. Frailty status fluctuates during the waiting period for KT; hence, a 1-time frailty evaluation is insufficient to determine risks and implement strategies for improving functional status. Further research should investigate the components of frailty that most frequently change during this waiting period and establish strategies to prevent or reverse frailty. Although careful evaluation of frail KT candidates is necessary to prevent early complications and mortality, exclusion based solely on a frailty score is unwarranted. Instead, efforts should focus on timely interventions to enhance their condition before transplantation. Although evidence is limited, exercise programs appear feasible and yield positive results. A pretransplant clinical framework encompassing multimodal prehabilitation—comprising physical therapy, nutritional measures, and psychological support—during the waiting list period may help alleviate the effects of frailty and poor fitness after KT, ultimately improving key outcomes. Despite logistical challenges, there is a pressing need for interventional trials in this area.

Funder

FIS-FEDER

Publisher

Ovid Technologies (Wolters Kluwer Health)

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