ileus
Pronunciation: IL-ee-us
Bowel obstruction due to impaired intestinal motility rather than mechanical blockage.
Full Definition
A condition characterized by decreased or absent intestinal peristalsis resulting in functional bowel obstruction without mechanical blockage. Post-operative ileus is common after abdominal surgery due to surgical manipulation, anesthesia effects, and inflammatory response. Paralytic ileus may also result from medications, electrolyte imbalances, or systemic illness. Management includes bowel rest, nasogastric decompression, correction of underlying causes, and gradual diet advancement. Distinguished from mechanical obstruction by imaging and clinical presentation.
Usage
Usage note: Plural is 'ileuses' in English medical usage, not Latin 'ilei'.
In Context
- "Post-operative ileus resolved on day three with return of bowel sounds." — Progress note
- "CT findings consistent with ileus rather than mechanical small bowel obstruction." — Radiology report