title: Safety and efficacy of palliative colorectal stent placement using a nasal endoscope technique.
abstract: The purpose of this study was to evaluate the safety and efficacy of palliative self-expanding metallic stent (SEMS) placement using a nasal endoscope technique in the context of colorectal malignant obstruction. Eighteen patients with malignant colorectal obstruction who underwent palliative SEMS insertion using a nasal endoscope technique at the Toyonaka Municipal Hospital from August 2005 to August 2011 were enrolled and retrospectively analyzed. In all cases, a guidewire could be inserted on the oral side of the tumor. The placement success rate was 94.4% (17/18), and the complication rate was 23.5% (4 cases). The stent migrated in 3 cases, and perforation occurred in 1 case following bevacizumab chemotherapy. These outcomes indicate that stenting is useful for terminal patients and that nasal endoscopy is useful in cases of difficult guidewire placement.
authors.affiliation: *Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University ‡Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka Departments of †Gastroenterological Medicine §Gastroenterological Surgery, Toyonaka Municipal Hospital, Toyonaka, Japan.
authors.forename: Taishi
authors.initials: T
authors.lastname: Hata
authors.forename: Shiro
authors.initials: S
authors.lastname: Hayashi
authors.forename: Masakazu
authors.initials: M
authors.lastname: Miyake
authors.forename: Shunji
authors.initials: S
authors.lastname: Morita
authors.forename: Keizo
authors.initials: K
authors.lastname: Dono
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000150:complications*; D004724:Endoscopy; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000209:etiology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009666:Nose; D010166:Palliative Care; D012189:Retrospective Studies; D015607:Stents / Q000009:adverse effects; D016896:Treatment Outcome