Diagnostic approach to gastroesophageal reflux disease associated respiratory complications: role of dual channel pH-metry

Aim: to investigate the value of different methods, particularly the usefulness of routine 24-hr dual channel esophageal pH-metry, in the diagnosis of GERD associated respiratory complications. Patients and methods: 100 subjects with GERD associated airway complications were submitted to 24-hr dual channel esophageal pH monitoring, upper gastrointestinal endoscopy, esophageal manometry and video barium esophagography and their symptoms were analysed. Results: 25% of patients (pts) with GERD associated airway complications did not have reflux symptoms. 5cm above LES the DeMeester score was pathological only in 39…