A slowing of gastrointestinal motility that is not associated with mechanical obstruction.
Most commonly presents following surgery and usually lasts 2 to 4 days.
Prolonged postoperative ileus contributes significantly to longer hospitalization and increased healthcare costs.
Treatment includes bowel rest, supportive care, and treatment of any underlying exacerbating factors.
Prevention requires a multimodal approach, including the substitution of postoperative opioid analgesia with nonsteroidal anti-inflammatory drugs and thoracic epidural analgesia, early enteral feeding, early ambulation, and the use of laparoscopy rather than laparotomy whenever possible.
Ileus is a slowing of gastrointestinal (GI) motility accompanied by distention, in the absence of a mechanical intestinal obstruction.  It is a diagnosis of exclusion after bowel obstruction has been ruled out. It usually occurs in response to physiologic stress, including surgery, sepsis, metabolic derangements, and GI diseases.
Digestive Disease Center
Professor and Chair
Department of Colorectal Surgery
SDW has received consulting fees, stock options, and royalties from the following companies. These relationships are ongoing. Consulting - Intuitive Surgical, Karl Storz Endoscopy America, Medtronic, TiGenix. Royalties - Covidien, Intuitive Surgical, Karl Storz Endoscopy America, Unique Surgical Innovations. There are no relevant disclosures to the submitted work.
Dr Steven D. Wexner would like to gratefully acknowledge the contribution of Dr Stephen P. Sharp to the update for this topic. Dr Wexner would also like to acknowledge Dr Ahmed Sami Chadi, and Dr Paula I. Denoya, previous contributors to this topic.
Associate Professor of Pediatric Surgery
University of Pittsburgh School of Medicine
DJH declares that he has no competing interests.
Consultant Colorectal Surgeon
St. Mark's Hospital
JJ declares that he has no competing interests.
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