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Revista médica de Chile

versión impresa ISSN 0034-9887

Resumen

DONOSO R, Gilda et al. Renal scars after one year of follow up in children with a first episode of acute pyelonephritis. Rev. méd. Chile [online]. 2006, vol.134, n.3, pp. 305-311. ISSN 0034-9887.  http://dx.doi.org/10.4067/S0034-98872006000300006.

Background: Acute pyelonephritis in children can leave a kidney scar that eventually can lead to hypertension or renal failure. 99mTc-dimercaptosuccinic acid renal scintigraphy (RC DMSA) is a widely accepted technique to assess children with acute pyelonephritis. Aim: To evaluate the presence of residual kidney scars detected through RC DMSA, in children with a first episode of acute pyelonephritis. Patients and methods: Clinical records of children with a first episode of acute pyelonephritis that were assessed within seven days of the episode with RC DMSA were reviewed. Children were considered eligible if they did not have a new episode of acute pyelonephritis and a second RC DMSA, one year after the first episode, was performed. The presence or absence of a renal scar after one year was associated to demographic, scintigraphy and laboratory variables. Results: Fifty nine children, aged 1 month to 10 years, 35 females, were studied. Thirty nine percent had a renal scar in the scintigraphy perfomed after one year of follow up. The presence of a scar was correlated with a C reactive protein over 130 mg/dl and an altered relative renal function (below 44%), during the acute phase. Conclusions: A high C reactive protein and alterations of relative renal function during the acute phase of acute pyelonephritis in children, may be risk factors for the development of renal scars in the long term follow up

Palabras clave : C-reactive protein; Pyelonephritis; Radionuclide imaging.

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