title: Through-the-scope stent for malignant gastric outlet obstruction.
abstract: This report is of the technique and results for through-the-scope stent in palliating malignant gastric outlet obstruction for 17 patients. All procedures were done using conscious sedation and fluoroscopy. Enteral Wallstents with a diameter of 20 mm or 22 mm and length 60 mm or 90 mm were used and delivered over a guidewire through an endoscope with an operating channel of at least 3.7 mm. A total of 18 stents were placed. One stent failed to be deployed. One stent migrated and required insertion of a second stent. One patient required repeat endoscopy to stop bleeding from the tumour. Through-the-scope stent relieved obstructive symptoms for 14 (82%) patients. The median dysphagia score improved from 4 to 2 after through-the-scope stent (P=0.001). The median overall survival and hospital-free survival time was 6 weeks (interquartile range, 3-9 weeks) and 4 weeks (interquartile range, 1-7 weeks), respectively. To conclude, through-the-scope stent was safe and feasible, offering an alternative minimal invasive method to palliate obstructive symptoms for patients with inoperable tumours causing gastric outlet obstruction.
authors.affiliation: Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.
authors.forename: D W H
authors.initials: DW
authors.lastname: Lee
authors.forename: A C W
authors.initials: AC
authors.lastname: Chan
authors.forename: E K W
authors.initials: EK
authors.lastname: Ng
authors.forename: S K H
authors.initials: SK
authors.lastname: Wong
authors.forename: J Y W
authors.initials: JY
authors.lastname: Lau
authors.forename: S C S
authors.initials: SC
authors.lastname: Chung
mesh_terms: D000368:Aged; D016292:Procedural Sedation; D004724:Endoscopy; D005260:Female; D005471:Fluoroscopy; D017219:Gastric Outlet Obstruction / Q000209:etiology / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D015607:Stents; D013274:Stomach Neoplasms / Q000150:complications*