[Long-term prognosis in chronic primary glomerulonephritis in relation to urinary findings]

A long-term followed-up group of 993 patients with primary glomerulonephritis (GN) was divided by urinary syndromes, defined according to the degrees of proteinuria and haematuria. Responding morphological diagnoses and prognoses were found for each urinary syndrome. Isolated and predominant haematuria were determined as benign, with stationary course even without immunosuppressive therapy. The prognosis of isolated, even moderate, proteinuria is more serious finding. Its relevance increases with the degree of haematuria. Severe combined proteinuria and haematuria is the most serious urinary syndrome. Both proteinuria and haematuria may be changing in the course of GN and increasing proteinuria points to the future glomerular filtration rate decrease.