[The diagnosis of gastroesophageal reflux in childhood: a comparison between echography and pH measurement].

Gastroesophageal reflux (GER) is a very common event in childhood. Therefore we must use an exact and nontraumatizing test to differentiate between physiologic and pathologic conditions. Sonography appears to be a methodology endowed with these particularities. The aim of our study was to evaluate the diagnostic efficacy of Ultrasound (US) in comparison with a very precise test: the pH monitoring. We studied, by both methodologies, 76 children with suspected GER. Compared to pH-metry data, sonography showed a diagnostic sensitivity of 88,46% and a specificity of 58,33%. Therefore US appears to be an efficacious and innocuous test both in the screening and in the follow-up of patients with GER.