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Radiol. bras ; 46(1): 30-34, jan.-fev. 2013. ilus, tab
Article in Portuguese | LILACS | ID: lil-666108

ABSTRACT

OBJECTIVE: To calculate the frequencies of acute pyelonephritis and renal scarring in patients under the age of two, with first episode of urinary tract infection in a Brazilian university hospital, comparing with data reported in the international literature. MATERIALS AND METHODS: Scintigraphic reports of children less than two years old submitted to 99mTc-DMSA renal scintigraphy in a university hospital in Rio Grande do Sul between 2006 and 2009 were reviewed to investigate acute pyelonephritis/renal scarring. Additionally, the presence of vesicoureteral reflux, early use of antibiotics, and comorbidities were investigated on electronic records. The sample size calculation was based on a systematic review study and obtained a minimum of 147 patients. Patients whose electronic records were not available were excluded. RESULTS: One hundred and fifty-seven children met the inclusion criteria; among them 48 had acute pyelonephritis and 8 of these had renal scars. Neither age nor sex presented any significant association with acute pyelonephritis (p = 0.405 and p = 0.124, respectively). No statistical significance was observed in the association between vesicoureteral reflux and acute pyelonephritis (p = 1.0) and other comorbidities (p = 0.470), and in relation to early use of antibiotics with acute pyelonephritis (p = 0.130) and renal scarring (p = 0.720). CONCLUSION: The frequencies found in the present study for acute pyelonephritis/renal scarring are in agreement with the results reported by most studies in the literature.


OBJETIVO: Calcular as frequências de pielonefrite aguda e cicatriz renal em pacientes menores de dois anos com cintilografia renal com 99mTc-DMSA com primeiro quadro de infecção do trato urinário em hospital universitário brasileiro, comparando com dados da literatura internacional. MATERIAIS E MÉTODOS: Foram revisados laudos cintilográficos de crianças menores de dois anos de idade que realizaram cintilografia renal com 99mTc-DMSA em um hospital universitário no Rio Grande do Sul, entre 2006 e 2009, para pesquisa de pielonefrite aguda/cicatriz renal. Revisaram-se a presença de refluxo vesicoureteral, o uso precoce de antibiótico, e a presença de comorbidades que constassem nos prontuários eletrônicos. Calculou-se a amostra com base num estudo de revisão sistemática e obteve-se um mínimo de 147 pacientes. Excluíram-se pacientes sem registro eletrônico. RESULTADOS: Cento e cinquenta e sete crianças preencheram critérios de inclusão do estudo, 48 tiveram pielonefrite aguda e 8 destas apresentaram cicatriz renal. Nem a idade nem o gênero dos pacientes apresentaram associação significativa com pielonefrite aguda (p = 0,405 e p = 0,124, respectivamente). Não houve diferença estatística nas associações de refluxo vesicoureteral e pielonefrite aguda (p = 1,0) e outras comorbidades (p = 0,470) e em relação ao uso precoce de antibiótico com pielonefrite aguda (p = 0,130) e cicatriz renal (p = 0,720). CONCLUSÃO: As frequências de pielonefrite aguda e cicatriz renal obtidas concordam com os resultados da maioria dos estudos publicados.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Cicatrix , Infections , Kidney , Pyelonephritis , Radionuclide Imaging , Succimer , Urologic Diseases , Electronic Health Records , Expert Testimony
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