Abstract
Background: The aim of this study was to investigate the motor function of the ileoanal pouch
and to evaluate its coordination with proximal small-intestine motility. Methods: Proctocolectomy and ileal J pouch–anal anastomosis were performed in 12 dogs. Motility
was recorded by serosal electrodes and strain gauge transducers. Results: Transmission of the migrating motor complex (MMC) on the pouch appeared in only 37
of 109 measurements. On the ascending limb there was a constant irregular activity
with no MMC detectable. Motility pattern of the pouch did not change postprandially.
Spontaneous defecation always appeared independently from MMC transmission without
an increase of electrical or mechanical activity or endoluminal pouch pressure. Conclusions: Ileal pouch motility is independent from motility patterns of the proximal intestine.
Its random contractile activity might provide storage function and make the pouch
act as a functional reservoir. Intrinsic pouch motility is not responsible for pouch
evacuation under physiologic conditions. (Surgery 2000;127:170-7.)
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Article info
Publication history
Accepted:
July 10,
1999
Footnotes
*This study was sponsored by a grant of Deutsche Forschungsgemeinschaft (DFG Wi 1228/2-1).
**Reprint requests: S. Willis, MD, Department of Surgery, The Technical University Aachen, Pauwelsstrassse 30, 52057 Aachen, Germany.
Identification
Copyright
© 2000 Mosby, Inc. Published by Elsevier Inc. All rights reserved.
