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  • Title: [The role of duodenogastroesophageal reflux in gastroesophageal reflux disease].
    Author: Xu XR, Li ZS, Xu GM, Zou DW, Yin N, Ye P.
    Journal: Zhonghua Nei Ke Za Zhi; 2004 Apr; 43(4):269-71. PubMed ID: 15130410.
    Abstract:
    OBJECTIVE: To investigate the role of duodenogastroesophageal reflux (DGER) in the pathogenesis of gastroesophageal reflux disease (GERD) and its value for the diagnosis of non-erosive reflux disease (NERD). METHODS: 95 cases of GERD were divided into two groups according to endoscopic findings: reflux esophagitis (RE) (n = 51) and NERD (n = 44). Simultaneous 24-hour esophageal pH and bilirubin monitoring were performed. RESULTS: The index values of DGER in RE group such as percent of time with Abs > 0.14, total reflux time and time with reflux > 5 min were 19.05 +/- 23.44, 30.56 +/- 34.04 and 5.90 +/- 6.37 respectively, they were significantly higher than those of NERD, 7.26 +/- 11.08, 15.68 +/- 20.92 and 2.59 +/- 3.57, respectively (P < 0.05), but no significant difference was found in acid reflux. The occurrence of DGER was more common in more severe esophagitis. Isolated DGER were found in 18.2% of NERD, and combined bilirubin monitoring could elevate the positive diagnosis rate of NERD from 65.9% to 84.1%. CONCLUSIONS: DGER could be present isolatedly and played an obvious role in the genesis of RE and GERD symptoms. Simultaneous 24-hour esophageal pH and bilirubin monitoring were helpful for the diagnosis of NERD.
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