Diagnostic value of the dual channel esophageal pH-metry in supraesophageal manifestations of gastroesophageal reflux disease

Aim: To compare the value of 24-h dual channel pH-metry in the diagnosis of GERD associated respiratory complications with symptom analysis, endoscopy, esophageal manometry and distal pH-monitoring. Patients, methods: 117 patients (pts) with GERD (43 pts with asthma, 44 pts with chronic hoarseness and 30 pts without supraesophageal manifestation) were submitted to detailed symptom analysis, upper gastrointestinal endoscopy, esophageal manometry and 24-h dual channel esophageal pH-monitoring. Results: Silent GERD was observed more frequently among asthma pts (21%) and pts with hoarseness (18%) than in pts without…