Episode-level reflux characteristics: How experienced reviewers differentiate true reflux from artifact on pH-impedance studies.
Barrett RogersBenjamin RogersMarzio FrazzoniEdoardo SavarinoSabine RomanDaniel SifrimChandra Prakash GyawaliPublished in: Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society (2021)
Acidic episodes with high proximal extent in the upright position and longer acid clearance times on pH-impedance studies have the highest concordance for identification by expert reviewers. Reflux episode identification may be influenced by reviewer opinion despite availability of established criteria.