Hypertension and Proteinuria: Long-term Sequelae of Uninephrectomy in Humans

Renal function and blood pressure were assessed in 52 renal allograft donors 10 years or more following uninephrectomy, and their current function compared to their pre-uninephrectomy function as well as to age- and sex-matched control subjects consisting of inpatient potential renal donors and a normal "outpatient" population. The results show no significant deterioration in renal function as determined by serum creatinine or creatinine clearance, as a function of years post-uninephrectomy or age at the time of donation. A higher incidence of proteinuria and hypertension was found in male donors as compared to their pre-uninephrectomy values and to age- and sex-matched, inpatient and outpatient control subjects. Female donors had increased proteinuria when compared to pre-uninephrectomy and to age-matched, inpatient potential donors. However, the extent of proteinuria and hypertension was not significantly different from outpatient age-matched females with two kidneys. In our population, uninephrectomy is associated with mild proteinuria and hypertension.