2000 Volume 13 Issue 2 Pages 113-117
It has past 25 years since establishment of SUSP in Japan. Every Japanese student (6-14 year old) undergoes their urinary check (proteinuria, hematuria) in SUSP every year (once a year repeatedly). In Chiba city, the total number of two million students underwent SUSP during 20 years (1975-1995). We divided into two groups: A group (1975-1984) the total nnmber of 1,144,685 students (essentially 220,102), B group (1985-1994) the total number of 1,008,314 students (essentially 208,764). In A group, we found some kidney diseases existing subclinically like MPGN, IgA nephropathy (lgAGN), hypolpasia and so on and followed up them without positive therapy except nephrotic cases. There were no differences in the discover rates of each kidney diseases between A and B group. In B group, the patients were treated positively like steroid therapy, anticoaglant therapy, antiplatelet therapy, and so on. In same follow-up period (at 1989 in A group and at 1999 in B group) there were 10 renal failure cases (lgAGN: 3, chronic glomerulo-nephritis: 5, oligomeganephronia: 1, unknown origin: 1) in A goup, only 2 cases (oligomeganephronia: 1, nephronophthisis: 1) in B group. Our positive therapy prevented from proggression of renal failure in the glomerulonephritis. SUSP is valuable for the diagnosis of renal diseases in early stage and the appropriate treatment in early stage of renal diseases prevents from renal failure.
