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Updated: Aug 8, 2026

Murine Ileocolic Bowel Resection with Primary Anastomosis
Published on: October 29, 2014
Ileocecal segment transposition does not alter whole gut transit in humans
L P Degen1, M O von Flüe, A Collet
1Division of Gastroenterology, University Hospital, Basel, Switzerland.
Ileocecal reservoir reconstruction after rectal cancer surgery does not affect whole gut transit. Scintigraphy showed similar gastric emptying and small bowel transit times in patients and healthy controls.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Colorectal Surgery
Background:
- Rectal cancer surgery often involves total mesorectal excision (TME).
- Ileocecal reservoir reconstruction is a technique for rectal replacement after TME.
- This reconstruction preserves neurovascular supply and has shown good functional outcomes.
Purpose of the Study:
- To evaluate the impact of ileocecal reservoir reconstruction on whole gut transit.
- To compare gastric emptying, small bowel transit, and colonic transit in patients with ileocecal reservoirs versus healthy controls.
Main Methods:
- Scintigraphy was used to assess gastric emptying and small/large bowel transit times.
- 12 patients with ileocecal reservoirs were compared to a sex- and age-matched control group.
- Statistical analysis included Wilcoxon's signed rank test and ANOVA, with p < 0.05 considered significant.
Main Results:
- Gastric emptying (T50) was 161 min in patients vs. 201 min in controls.
- Small bowel transit time was 150 min in patients vs. 177 min in controls.
- Colonic transit (geometric center at 6 and 24 hours) showed no significant differences between groups.
Conclusions:
- Ileocecal reservoir reconstruction does not significantly alter gastric emptying.
- Small bowel and colonic transit times remain unaffected by this surgical reconstruction.
- Transposition of the ileocecal segment preserves whole gut transit function.
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