European journal of gastroenterology & hepatology · 2001
The extent of duodenogastric reflux in gastro-oesophageal reflux disease.
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Marshall R E, Anggiansah A, Owen W A, Manifold D K, Owen W J
Аннотация
BACKGROUND: It is known that duodenogastro-oesophageal reflux (DGOR) increases with worsening gastro-oesophageal reflux disease (GORD). It is unclear whether this is accompanied by increasing duodenogastric reflux (DGR).
OBJECTIVE: To investigate the extent of DGR in a control group and 66 patients with GORD, using the technique of ambulatory gastric bilirubin monitoring.
METHODS: Sixty-six patients with reflux symptoms (30 grade 0 or 1 oesophagitis (group 1), 16 grade 2 or 3 oesophagitis (group 2), 20 Barrett's oesophagus (group 3)) and 17 healthy controls were studied. All underwent oesophageal manometry followed by 24-h ambulatory oesophageal and gastric pH monitoring and gastric bilirubin monitoring.
RESULTS: Median per cent total oesophageal acid exposure (pH < 4) was significantly less in the control group (0.6%) than in group 1 (2.8%, P< 0.05) and groups 2 and 3 (7.5% and 7.8% respectively, P< 0.001). There was no significant difference between any group in median per cent total time gastric pH was greater than 4. There was no significant difference in median per cent total gastric bilirubin exposure (absorbance > 0.14) between any group. However, in each group gastric bilirubin exposure was greater in the supine position than the upright position, being significantly greater in the control group (P< 0.05) and group 1 (P < 0.001).
CONCLUSIONS: Gastric bilirubin exposure is similar across the spectrum of GORD severity. It is greater in the supine than in the upright position.
OBJECTIVE: To investigate the extent of DGR in a control group and 66 patients with GORD, using the technique of ambulatory gastric bilirubin monitoring.
METHODS: Sixty-six patients with reflux symptoms (30 grade 0 or 1 oesophagitis (group 1), 16 grade 2 or 3 oesophagitis (group 2), 20 Barrett's oesophagus (group 3)) and 17 healthy controls were studied. All underwent oesophageal manometry followed by 24-h ambulatory oesophageal and gastric pH monitoring and gastric bilirubin monitoring.
RESULTS: Median per cent total oesophageal acid exposure (pH < 4) was significantly less in the control group (0.6%) than in group 1 (2.8%, P< 0.05) and groups 2 and 3 (7.5% and 7.8% respectively, P< 0.001). There was no significant difference between any group in median per cent total time gastric pH was greater than 4. There was no significant difference in median per cent total gastric bilirubin exposure (absorbance > 0.14) between any group. However, in each group gastric bilirubin exposure was greater in the supine position than the upright position, being significantly greater in the control group (P< 0.05) and group 1 (P < 0.001).
CONCLUSIONS: Gastric bilirubin exposure is similar across the spectrum of GORD severity. It is greater in the supine than in the upright position.