[Hypertension outpatient clinic for children and adolescents. Analysis of nearly 10 years of monitoring].

314 children with hypertension living in an urban district have been transmitted to our out patient clinic. These children were discovered by regularly performed examinations of the medical youth care since 1979. We found a secondary cause of hypertension in 2.

[Attempt at diagnosis of hereditary spherocytosis using the ionophore valinomycin].

On the basis of former observations that erythrocytes of patients with hereditary spherocytosis (HS) exhibit a slighter K+ efflux under the influence of valinomycin and a diminished shrinking, the attempt was made to use this phenomenon in routine diagnostics. In pair comparison the findings already known could be proved impressively. However, obligatory limiting values which make it possible to dispense with giving statements of comparison could not be established.

[Renal sonography in childhood. Normal findings].

In a prospective study 201 children with healthy kidneys were sonographically examined. Apart from the length unspecific parameters in the ultrasound tomogram, such as possibility to delimit the organ, echogenity and differentiation of the fine structure of the kidneys are demonstrated depending on age. The proportion of smoothly delimited kidneys before the 1st year of age was significantly lower than in the following years.