RESUMEN
Background: pH monitoring 24h is used to diagnose atypical gastroesophageal reflux disease or can be applied to consider surgery for cases poorly respond with medical treatment. Objective: To study clinical signs, gastroscopic and oesophageal histopathologic features, pH monitoring 24h in the patients with gastroesophageal reflux disease (GERD). Subjects and method: The descriptive, cross-sectional study was conducted in patients with gastroesophageal reflux disease treated at Bach Mai Hospital from November 2005 to October 2006. 73 patients with GERD diagnosed according to Romell criteria were underwent gastroscopy and biopsy. 15 patients having extraesophageal manifestations of gastroesophageal reflux disease were underwent gastroesophageal reflux monitoring pH. Results: 31 (42.4%) patients had oesophagitis in which 67.7% grade A, 6.5% grade D and C, 2.7% Barret, and 53.4% having gastritis associated. 61 % oesophagitis and 13.9% Barret were seen on the biopsy. 40% (6/15) patients had abnormal pH monitoring but there was no statistically significant difference in pH monitoring between the group having oesophagitis from those without oesophagitis (p > 0.05). Conclusions: Among 15 patients underwent Ph monitoring, the rate of patients with abnormal pH monitoring was 40%. There was no statistically significant difference of pH monitoring result between patients with or without esophagus lesion.