Clinicopathological study of poststreptococcal glomerulonephritis in the elderly.

In order to characterize the clinical features in elderly patients with poststreptococcal glomerulonephritis (PSGN), 31 patients, who were both histologically and immunologically proven to be PSGN, were divided up into 3 groups according to age; elderly patients being 55 years or older (n=7), middle-aged patients being 40 to 54 years old (n=7) and younger patients being 20 to 39 years old (n=17). Renal functional impairment as indicated by serum creatinine levels of over 2.0 mg/dl, developed in 4 of the elderly patients and later completely improved at the end of the follow-up period (178.9±150.7 days). On the other hand, none of the middle-aged and younger patients revealed any renal function impairment