[Initial results of tm-PAH studies in children with kidney transplants].

In 15 children 2 months to 5 years after a transplantation of a cadaver kidney the renal function was determined by means of a clearance- and Tm-PAH-examination. Only in 4 children the Tm-PAH reached the normal value of a kidney. The calculation of the glomerulo-tubular balance results in increased values. The result for the relative tubular blood supply is normal. Compared with the values of children with an overcome haemolytic-uraemic syndrome or with a chronic glomerulonephritis or pyelonephritis shows that the renal function in children who underwent a transplantation similarly behaves as in a chronic pyelonephritis.