[Residual urine and phagocytic activity of polymorphonuclear cells in diabetes].

The authors examined by ultrasonography the residual urine in 105 diabetics after passing urine (55 men--53.3% and 49 women--46.7%) aged 20 to 50 years and compared the results with a control group of 103 non-diabetics selected at random (55 men--48.7% and 58 women--51.3%), also aged 20-50 years. Patients with organic diseases affecting the residual urine were not included in the group. In all patients the phagocytic ratio was examined, the urine was analyzed chemically and the sediment was examined, in selected cases also cultivation examinations were 105 diabetics residual urine was found in 34 cases (34.4% and in the control group of 113 non-diabetics in 3 cases (2.7%). The difference is highly significant (p less than 0.001). In the group of diabetic men and women residual urine was found more frequently in type I diabetics with diabetes existing for prolonged periods and the amount of residual urine was larger as compared with type II diabetes. Comparison of the phagocytic ratio in the diabetics and controls of both sexes revealed significant changes at the level of p less than 0.05. In the group of diabetics with residual urine was a significantly higher incidence of pathological findings in urine as compared with diabetics without residual urine which is of pathognomic importance for the development and persistence of urinary infections.