Physical Frailty Predicts Outcomes in Patients Undergoing Evaluation for Kidney Transplantation

Area of Science:

• Nephrology
• Geriatrics
• Transplantation Medicine

Background:

• Older adults are increasingly evaluated for kidney transplantation.
• Older transplant candidates face higher complication rates, necessitating frailty assessments.
• The Fried Frailty Phenotype (FFP) is widely studied, but the Short Performance Physical Battery (SPPB) predictive ability for outcomes is less understood.

Purpose of the Study:

• To evaluate the predictive performance of FFP and SPPB in assessing frailty for kidney transplant candidates aged 55 and older.
• To determine if frailty assessment can improve risk stratification and optimize outcomes in this patient population.

Main Methods:

• Frailty was assessed using FFP and SPPB in patients aged 55+ referred for kidney transplantation.
• Transplant rates, length of stay, readmissions, and mortality were reviewed.
• Multivariate analysis, controlling for demographics, was applied to initial and validation cohorts.

Main Results:

• SPPB significantly predicted transplantation in both initial (OR, 2.27) and validation (OR, 2.81) cohorts.
• Nonfrail status by SPPB was associated with a lower risk of death (OR, 0.16).
• FFP did not show a significant association with clinical outcomes in this study.

Conclusions:

• Frailty assessment is a valuable tool for evaluating kidney transplant candidates.
• SPPB is a more effective predictor of clinical outcomes than FFP in older transplant candidates.
• Integrating SPPB into transplant evaluations may enhance risk stratification and improve patient outcomes.