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Gastroenterology Research and Practice
Volume 2014, Article ID 138724, 7 pages
Clinical Study

Clinical Outcomes of Colonic Stent in a Tertiary Care Center

1Department of Internal Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
2Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh, Pittsburgh, PA 15213, USA
3The Center for Endoscopic Research and Therapeutics (CERT), Division of Gastroenterology, Hepatology and Nutrition, University of Chicago, 5700 South Maryland Avenue, MC 8043, Chicago, IL 60637-1470, USA

Received 31 October 2013; Accepted 9 January 2014; Published 18 February 2014

Academic Editor: Michel Kahaleh

Copyright © 2014 Mahesh Gajendran et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Introduction. Colonic obstruction is one of the manifestations of colon cancer for which self-expanding metal stents (SEMS) have been effectively used, to restore the luminal patency either for palliative care or as a bridge to resective surgery. The aim of our study is to evaluate the efficacy and safety of large diameter SEMS in patients with malignant colorectal obstruction. Methods and Results. A four-year retrospective review of the Medical Archival System was performed and identified 16 patients. The average age was 70.8 years, of which 56% were females. The most common cause of obstruction was colon cancer (9/16, 56%). Rectosigmoid was the main site of obstruction (9/16) and complete obstruction occurred in 31% of cases. The overall technical and clinical success rates were 100% and 87%, respectively. There were no immediate complications (<24 hours), but stent stenosis due to kinking occurred within one week of stent placement in 2 patients. Stent migration occurred in 2 patients at 34 and 91 days, respectively. There were no perforations or bleeding complications. Conclusion. Large diameter SEMS provide a safe method for palliation or as a bridge to therapy in patients with malignant colonic obstruction with high technical success and very low complication rates.