Gas Reflux in Children with Normal Acid Exposure of the Oesofagus.

The clinical manifestations of non-erosive gastroesophageal reflux disease (NERD) are multiple and heterogeneous, and differ according to age and individual susceptibility. Weakly acidic reflux and the presence of gas in the refluxate could be relevant in the pathogenesis of symptoms. We present the case of a 3-year and 5-month-old child who came to the hospital with recurrent paroxysmal manifestations without fever assessed. The positive diagnosis was made using pH-metry associated with multichannel intraluminal impedance and glucose respiratory breath test, a new technique that allows positive diagnosis as well as establishes important connections regarding gas reflux and clinical symptomatology described by the patient.