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Self-expandable metallic stents for malignant duodenal obstruction caused by biliary tract cancer.
Gastrointestinal Endoscopy 2003 August
BACKGROUND: Malignant duodenal obstruction is a common event in patients with advanced biliary tract cancer. Because bypass surgery is accompanied by significant morbidity, self-expandable metallic stents have emerged as a possible alternative for palliation.
METHODS: Twenty patients with biliary tract cancer (7 gallbladder, 13 Klatskin tumors) and duodenal obstruction were treated with metallic stents at a single institution between 1999 and 2001. Survival, morbidity, and stent function were studied prospectively. The ability to eat was assessed by using a scoring system.
RESULTS: Stent placement was technically successful in all patients. An additional stent was required in 6 cases (4 occlusions, 2 dislocations). Median survival was 20.5 weeks; there was no treatment-related death. Twenty-eight biliary stent exchanges were performed in 13 (65%) patients. Erosive reflux esophagitis improved in 11 of 12 (92%) cases. After 4 weeks, all 17 surviving patients tolerated soft or solid food, whereas 13 of 17 (77%) tolerated a more solid diet (p < 0.001, gastric outlet obstruction scoring system). Twelve of 17 (71%) patients gained a median of 1.5 kg of body weight (p = 0.001). The median Karnofsky scale increased from 50% to 60% in 13 of 17 (77%) patients.
CONCLUSIONS: Self-expandable metallic stents are a safe, efficacious, and minimally invasive treatment option for palliation of patients with duodenal obstruction from biliary tract cancer. Technical complications can be managed endoscopically and the bile duct remains accessible for endoluminal treatment.
METHODS: Twenty patients with biliary tract cancer (7 gallbladder, 13 Klatskin tumors) and duodenal obstruction were treated with metallic stents at a single institution between 1999 and 2001. Survival, morbidity, and stent function were studied prospectively. The ability to eat was assessed by using a scoring system.
RESULTS: Stent placement was technically successful in all patients. An additional stent was required in 6 cases (4 occlusions, 2 dislocations). Median survival was 20.5 weeks; there was no treatment-related death. Twenty-eight biliary stent exchanges were performed in 13 (65%) patients. Erosive reflux esophagitis improved in 11 of 12 (92%) cases. After 4 weeks, all 17 surviving patients tolerated soft or solid food, whereas 13 of 17 (77%) tolerated a more solid diet (p < 0.001, gastric outlet obstruction scoring system). Twelve of 17 (71%) patients gained a median of 1.5 kg of body weight (p = 0.001). The median Karnofsky scale increased from 50% to 60% in 13 of 17 (77%) patients.
CONCLUSIONS: Self-expandable metallic stents are a safe, efficacious, and minimally invasive treatment option for palliation of patients with duodenal obstruction from biliary tract cancer. Technical complications can be managed endoscopically and the bile duct remains accessible for endoluminal treatment.
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