New-onset diabetes after renal transplantation: a case series as seen in a Nigerian kidney transplant population.

New-onset diabetes after transplantation (NODAT) is an important metabolic complication of transplantation because of its associated morbidity and mortality. Risk factors for NODAT include those known to cause diabetes mellitus in non-transplant patients as well as transplant-specific factors. This study was aimed at illustrating the presentation and management of NODAT in three kidney transplant recipients in our center and reviewing the literature. To our knowledge, this is the first report from Nigeria. Two of the patients were males of ages 60 and 36 years, respectively, while the third was a female aged 25 years. They were all receiving prednisolone, two were on tacrolimus, and one was on cyclosporine as part of their immunosuppressive regimens. They developed NODAT at varying times post transplant, ranging from 3 months to 6 years. Two patients were managed with oral hypoglycemic agents and one with insulin. One patient died of hemorrhagic stroke. We conclude that NODAT occurred in our kidney transplant recipients and recommend that physicians should have a high index of suspicion in order to make an early diagnosis and institute appropriate management to reduce morbidity and mortality.