Posttransplant diabetes mellitus: a single-center study

Area of Science:

• Nephrology
• Immunology
• Endocrinology

Background:

• Posttransplant diabetes mellitus (PTDM) is a frequent complication following kidney transplantation.
• Identifying risk factors for PTDM is crucial for improving patient outcomes.

Purpose of the Study:

• To evaluate the risk factors associated with the development of PTDM.
• To compare the incidence and management of PTDM between patients receiving the Ahmedabad Tolerance Induction Protocol (ATIP) and those on conventional immunosuppression.

Main Methods:

• A retrospective analysis of 1112 kidney transplant patients from January 2001 to July 2007.
• Patients were diagnosed with PTDM based on American Diabetes Association criteria.
• Comparison between 846 patients on ATIP and 266 controls on conventional immunosuppression.

Main Results:

• PTDM incidence was lower in the ATIP group (6.6%) compared to controls (19.1%).
• Increased body mass index (BMI), hepatitis C virus (HCV) positivity, and use of calcineurin inhibitors (tacrolimus, cyclosporine) and pulse steroids were significant risk factors for PTDM.
• ATIP patients required less intensive PTDM management (more diet and oral hypoglycemic agents, less insulin) compared to controls.

Conclusions:

• HCV positivity, elevated BMI, and specific immunosuppressive agents (tacrolimus, cyclosporine, pulse steroids) are key risk factors for PTDM.
• The Ahmedabad Tolerance Induction Protocol (ATIP) demonstrated a potentially safer profile regarding PTDM development compared to conventional immunosuppression.