Published online Nov 21, 2014. doi: 10.3748/wjg.v20.i43.16020
Revised: June 12, 2014
Accepted: July 11, 2014
Published online: November 21, 2014
Processing time: 214 Days and 16.5 Hours
Core tip: Accumulating evidence has supported the clinical efficacy of self-expanding metal stents (SEMS) placement in patients with malignant colorectal obstruction. As a bridge to surgery or a palliative measure, SEMS placement achieves significantly more beneficial short-term outcomes to relieve obstructive symptoms compared with emergent surgery. Furthermore, SEMS placement can avoid emergent surgery with stoma creation, which increases perioperative morbidity and mortality. However, the negative results of SEMS placements found in recent randomized controlled trials should not be overlooked. For successful outcomes of SEMS placement, the cause of bowel obstruction, purpose of intervention, life expectancy, medical condition, and endoscopic skill should be considered with careful examination on patient status.