Prevalência de pielonefrite aguda e incidência de cicatriz renal em crianças menores de dois anos de idade com infecção do trato urinário avaliadas através da cintilografia renal com 99mTcDMSA : a experiência de hospital universitário

Abstract

OBJECTIVE: To calculate the frequencies of acute pyelonephritis and renal scarring in youngers than two years old through scintigraphy with 99mTcDMSA with first episode of UTI in a Brazilian university hospital and comparing with international literature. MATERIALS AND METHODS: We reviewed reports scintigraphy of youngers than two years old who underwent scintigraphy with 99mTcDMSA in a university hospital in Rio Grande do Sul, between 2006 and 2009 to search for APN and renal scarring. It was also revised the presence of vesicoureteral reflux, early use of antibiotics, and comorbidities that were recorded in e lectronic records. The sample size calculation was based on a systematic review study and obtained a minimum of 147 patients. We excluded patients with no electronic record. RESULTS: 157 children met the inclusion criteria, where 48 had APN and 8 of these had renal scars. There was no statistical difference in the association of VUR and APN (p=1.0) as well as among all comorbidities (p=0.470). There was no significance relation to early use of antibiotics and APN (p=0.130) and renal scarring (p=0.720). CONCLUSION: The frequency of renal scarring and APN obtained agree with the results of most studies.