[The diagnostic value of captopril radionuclide nephrography for renovascular hypertension in childhood].

In four children the role of captopril-radionuclide nephrography in the diagnosis of renovascular hypertension was studied. Captopril (0.5-1.0 mg/kg orally) did not affect Iodine-123 Hippuran nephrography in two children with mild renal artery stenosis, but induced an accumulation of the tracer within the kidneys in two children with hemodynamically significant renal artery stenosis. As in adults Iodine 123 Hippuran nephrography appears to be a useful tool to identify patients with significant renal artery stenosis.