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Self-expanding metal stents versus antrectomy for the palliative treatment of obstructive adenocarcinoma of the gastric antrum

DOI: 10.4321/S1130-01082012000400003

Keywords: self-expanding metal stents, antrectomy, gastric cancer.

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background: gastric cancer patients are first diagnosed with an unresectable tumor in up to 40% of cases. gastric outlet obstruction causes nausea, vomiting, dehydration and malnutrition. the aim of the study was to compare self-expanding metal stents to antrectomy and roux-en y gastrojejunostomy for palliation of obstructive adenocarcinoma of the gastric antrum. methods: retrospective study in patients with obstructing cancer of the gastric antrum. patients were divided into two groups: group a, underwent endoscopic placement of self-expanding metal stents and group b underwent surgical treatment with antrectomy and roux-en y gastrojejunostomy. collected data included: age, gender, performance status (karnofsky's score), body mass index, histopathology, clinical stage (tnm classification), technical and clinical success of the procedure, time to oral intake, in-hospital stay, re-intervention rate, and complications related to the treatment and survival. results: a total of 39 patients with gastric adenocarcinoma were included, 21 male and 18 female. nineteen patients were assigned to group a and 20 patients to group b. there were no statistically significant differences between groups in regards to age, body mass index, karnofsky's score and clinical stage. the technical and clinical success was similar for both groups. there was a statistically significant difference between groups favoring self-expanding metal stent in time to oral intake (1 ± 0 vs. 4.9 ± 0.6 days, p = 0.0001) and in-hospital stay (0.94 ± 1.18 vs. 7.8 ± 7.7 days, p = 0.0005). we did not find statistically significant differences with regards to long-term survival. conclusions: in patients with malignant gastric outlet obstruction due to gastric cancer, endoscopic palliation with self-expanding metal stents provide a shorter interval to oral intake, shorter in-hospital stay and lower rate of complications.


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