Table 1.
Characteristics of studies focused on bile reflux after one anastomosis gastric bypass surgery.
| Author | Number | Report Year |
Study design | Preoperative BMI(kg/m2) | EWL1 | Bile reflux incidence | Follow up interval (m) | Diagnostic method | Operation characteristic | Results |
|---|---|---|---|---|---|---|---|---|---|---|
| Saarinen | 40 | 2020 | cohort | 45.2 (35.4–62) | N/A | 12 (31.6%) | 6 | bile reflux scintigraphy EGD2 gastric pouch biopsy |
gastric tube: 15 cm antecolic biliopancreatic limb: 210 cm stapler: 45 mm |
postoperative bile reflux in the gastric pouch after OAGB4 is a common finding in scintigraphy and endoscopy |
| Lasheen | 40 | 2019 | cohort | 44.31 | 81.2% | 8 (20%) | 12 | EGD histopathological examination gastric juice aspiration |
gastric tube: 18 cm antecolic biliopancreatic limb: 200 cm from DJF stapler: 40 mm |
20% of patients under OAGB suffered from biliary reflux |
| Keleidari | 122 | 2019 | cohort | 41.7 ± 2.6 | 16.86 ± 1.98 Kg |
5 (7.8%) | 12 | the Sydney scoring system for bile reflux EGD gastric pouch biopsy |
gastric tube:18–22 cm antecolic biliopancreatic limb: 150–200 cm stapler: 45 mm |
OAGB and RYGB5 are similar in creating biliary reflux |
| Saarinen | 9 | 2017 | cohort | 43.1 (34.2–54.6) | 83.9% (49.5–128.3) | 5 (55.5%) | 12 | hepatobiliary scintigraphy reflux symptom questionnaire(GerdQ) EGD gastric pouch biopsy |
gastric tube:15 cm antecolic biliary limb: 250–275 cm stapler: 40 mm |
one patient with positive scintigraphy in the gastric tube required re-operation |
| Shenouda | 20 | 2017 | cohort (pilot) | 47 (38–61) | 74% (60–84) | 6 (30%) | 6 | EGD histopathological examination gastric juice aspiration |
gastric tube: 18 cm or slightly more antecolic gastrojejunostomy: 200 cm from DJF stapler: 30 mm |
biliary gastritis presented in 30% of patients and significant relationship between bilirubin level and severity of inflammation was existed |
1 Estimated weight loss, 2 esophagogastrodeudenoscopy, 3 duodenojujenal flexure, 4 one anastomosis gastric bypass, 5 roux-en-y gastric bypass.