Safety and Efficacy of Palliative Colorectal Stent Placement Using a Nasal Endoscope Technique

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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.

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