Increased maintenance corticosteroids during upper respiratory infection decrease the risk of relapse in nephrotic syndrome.

Relapses are common in children with idiopathic nephrotic syndrome, and this prospective study looks into the possibility of decreasing the frequency of relapses in a selected group of such patients. The study includes 36 children with a steroid-dependent, relapsing nephrotic syndrome on a maintenance prednisone therapy of about 0.5 mg/kg every other day. They were prospectively divided into two groups with comparable age and sex distribution and the number of those who had previously received cyclophosphamide therapy. Group 1 patients were advised to take daily prednisone for 5 days, starting at the time of the onset of an upper respiratory tract infection (URI). No such advice was given to those in group 2, and they remained on alternate-day prednisone during URI. At the end of a 2-year follow-up period, the total number of relapses in group 1 was 40 with a mean of 2.2 +/- 0.87 per patient as compared with 99 with a mean of 5.5 +/- 1.33 per patient in group 2 (p = 0.04). We conclude that an increased maintenance prednisone during URI helps decrease significantly the number of relapses in those on alternate-day therapy. Copyright 2000 S. Karger AG, Basel