Outcomes in obese kidney transplant recipients

Area of Science:

• Nephrology
• Transplant Surgery
• Obesity Medicine

Background:

• Kidney transplantation (KT) outcomes in obese patients remain a subject of debate.
• Evaluating patient and graft survival, alongside post-transplant complications, is crucial for this population.

Purpose of the Study:

• To compare patient and graft survival rates between obese and nonobese kidney transplant recipients.
• To assess the incidence of post-transplantation complications in relation to patient body mass index (BMI).

Main Methods:

• A retrospective analysis of 3,054 kidney transplant recipients from 1998 to 2008.
• Patients were stratified into three groups based on BMI: nonobese (<30 kg/m²), class I obese (30-34.9 kg/m²), and class II/III obese (≥35 kg/m²).

Main Results:

• One-year and five-year patient and graft survival rates were comparable across all BMI groups.
• Obese patients exhibited significantly higher rates of wound dehiscence, new-onset diabetes after transplantation (NODAT), and prolonged hospital stays.
• Infection was the primary cause of death and graft loss across all groups.

Conclusions:

• Obesity does not negatively impact patient or graft survival following kidney transplantation.
• Increased risks of wound dehiscence, NODAT, and extended hospital stays are associated with obesity in KT recipients.
• Careful management of post-transplant complications is essential for obese kidney transplant patients.