55 Relationship Between Gastroesophageal Reflux and Gastric Emptying in Infants

Background: Gastroesophageal reflux (GER) is a common and relevant clinical problem in infants. Relationships between GER and gastric emptying are still unclear. The multiple intraluminal impedance (MII) technique is based on the intraluminal measurement of electrical impedance between 6 electrodes during a bolus passage. On the basis of the temporal sequence of impedance changes, it can be identified whether a change in impedance is caused by a bolus moving in an antegrade (swallow) or a retrograde (reflux) direction. Epigastric impedance (EGI) is a technique to evaluate gastric emptying by measuring modifications in the impedance value in the gastric area by means of 4 skin electrodes. Aim of this study was to investigate the relationship between GER and gastric emptying by multiple intraluminal impedance and epigastric impedance in infants.