title: Acid gastroesophageal reflux and symptom occurrence. Analysis of some factors influencing their association.
abstract: In 17 patients with esophagitis (degree I = erythema, N = 10; degree II = erosions, N = 7) esophageal pH was measured at 5 and 10 cm above the esophagogastric junction to assess whether the extension of acid reflux and the severity of the mucosal lesions could influence the association between reflux and symptoms. A minority of the refluxes were related with symptoms (4.0% and 7.7% in degree I, 14.1% and 12.0% in degree II at 5 and 10 cm respectively), whereas 65.4% and 100% of the symptoms were related with reflux in degrees I and II, respectively, with 76.5% and 35.7% occurring during refluxes reaching the proximal recording site. A relationship of symptoms with reflux is shown, particularly in erosive disease. Some reflux characteristics (extension, duration, acidity) seem to influence symptom occurrence mainly in mild esophagitis; however, more than 85% of the acid reflux episodes are symptom-free, regardless of the severity of the mucosal injury.
authors.affiliation: Department of Internal Medicine and Gastroenterology of the University, Policlinico S. Orsola, Bologna, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Baldi
authors.forename: F
authors.initials: F
authors.lastname: Ferrarini
authors.forename: A
authors.initials: A
authors.lastname: Longanesi
authors.forename: M
authors.initials: M
authors.lastname: Ragazzini
authors.forename: L
authors.initials: L
authors.lastname: Barbara
mesh_terms: D000328:Adult; D004567:Electrodes, Implanted; D004942:Esophagitis, Peptic / Q000209:etiology*; D005260:Female; D005764:Gastroesophageal Reflux / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic; D013997:Time Factors