Evaluation of infantile acid and nonacid gastroesophageal reflux using combined pH monitoring and impedance measurement.

ABSTRACTObjective:Characterize the proportion of acid and nonacid esophageal reflux events in young infants with suspected gastroesophageal reflux (GER) using combined pH-multichannel intraluminal impedance (MII) monitoring. Determine the symptom index correlation with nonacid reflux and acid reflux