Comparison of Efficacy of Covered Versus Uncovered Self-expandable Metallic Stents for Treatment of Malignant Gastric Outlet Obstruction: a Prospective, Randomized Study
Inclusion Criteria:
- age: 20-80
- patients with gastric outlet obstruction due to gastric adenocarinoma
- patients with inoperable gastric adenocarcinoma due to distant metastasis or severe
comorbidity
- Gastric outlet obstruction score: 0-2
- Symptoms consistent with gastric outlet obstruction such as nausea or vomiting
- Findings consistent with gastric outlet obstruction in upper endoscopy or abdominal
computed tomography
Exclusion Criteria:
- Previous history of stent insertion or endoscopic dilation for gastric outlet
obstruction
- previous history of bypass surgery for gastric outlet obstruction
- Multiple level of bowel obstruction confirmed in radiographic studies such as small
bowel series or abdominal computed tomography
- Borrmann type IV advanced gastric cancer