To examine longitudinal pH-impedance characteristics from those infants who remained on proton pump inhibitors therapy for gastroesophageal reflux disease (GERD) as parents/providers refused to discontinue therapy after 4 weeks.
Eighteen infants with acid reflux index >3% underwent treatment, and pH-impedance data were compared prior to and on proton pump inhibitors at 42 ± 1 and 46 ± 1 weeks’ postmenstrual age, respectively. Esophageal acid and bolus exposure, symptoms and swallowing characteristics were examined.
Proton pump inhibitors reduces the acid-mediated effects of reflux but modifies impedance and clearance mechanisms (P  0.05). Infants evaluated while on proton pump inhibitors were 1.8 times more likely to have swallows before and after reflux.
Prescription of proton pump inhibitors for objectively determined GERD should have time limits, as prolonged treatment can result in prolonged esophageal bolus clearance time without relieving symptoms.

© 2023. The Author(s), under exclusive licence to Springer Nature America, Inc.