[Determination of the urinary secretion of beta 2-microglobulin combined with sequential renal scintigraphy using H123 for the early diagnosis of pyelonephritis in children].

The acute pyelonephritis diagnosis in the infancy is often known very late or it is even underestimate that's why the general adopted criteria normally give no a certainty of the exact centre and the real damage entity. For this reason the authors have adopted a diagnostic protocol, which is based on the association of the urinary excretion dosage of beta 2 microglobulin, with sequential renal scan with Hippuran 123. In cases when the urinary beta 2 microglobulin was increasing, we could check a correspondent alteration of scintigraphic secretory phase. All that has permitted, in whale cases, of establishing with precision and at the right time the centre and the renal damage entity.