Short-term safety and efficacy of endoscopic self-expandable metal stent implantation for malignant colonic obstruction

Abstract

Objective To evaluate the short-term safety and efficacy of endoscopic implantation of self-expandable metallic stent (SEMs) for malignant colorectal obstruction. Methods A total of 208 patients who had undergone endoscopic SEMs implantation for malignant colonic obstruction from January 2012 to May 2014 at the endoscopy center of Shengjing hospital were enrolled. The technical and clinical success rate and the complications were reviewed. Results The technical and clinical success rates were 99.04%(206/208) and 96.15% (200/208), respectively. Abdominal pain, perforation and bleeding were the most common post-procedure complications, the rates of which were 13.46% (28/208), 2.88% (6/208), 1.92% (4/208), respectively. The abdominal pain in most patients was self-relieving except for 6 patients with perforation of colon. Patients with perforation were cured by emergency surgery. One patient with intraperitoneal hemorrhage was also cured by emergency surgery, the other patients developing bleeding recovered themselves. Conclusion The success rate of endoscopic SEMs implantation is satisfactory in the study. As a bridge to surgery or a palliative care method, endoscopic SEMs implantation is effective and safe for malignant colorectal obstruction. Key words: Colorectal cancer; Intestinal obstruction; Endoscopic stent implantation; Metallic stent