Published online Feb 7, 2015. doi: 10.3748/wjg.v21.i5.1580
Peer-review started: July 24, 2014
First decision: August 15, 2014
Revised: September 3, 2014
Accepted: October 21, 2014
Article in press: October 21, 2014
Published online: February 7, 2015
Core tip: Malignant duodenal obstruction is a terminal event in patients with pancreatic, hepatobiliary, duodenal, and metastatic cancer. In these patients, maintenance of oral food intake is crucial because it is essential to their quality of life. However, comparison of clinical outcomes between uncovered and covered stent placements have been not well evaluated in malignant duodenal obstruction. Our results show that uncovered stents may be preferable in patients with malignant duodenal obstruction because of their greater resistance to stent migration and longer overall duration of stent patency than those of covered stents.