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Murine Distal Colostomy, A Novel Model of Diversion Colitis in C57BL/6 Mice
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Transverse loop colostomy and colonic motility.

F Pucciani1, M N Ringressi, G Maltinti

  • 1Department of Surgery and Translational Medicine, University of Florence, Largo Brambilla 3, 50134, Florence, Italy, pucciani@unifi.it.

Techniques in Coloproctology
|June 29, 2014
PubMed
Summary
This summary is machine-generated.

Transverse loop colostomy does not eliminate colonic motility in the defunctionalized segment. Motor activity persists, with some contractions propagating distally, even after the colon is diverted.

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Area of Science:

  • Gastroenterology
  • Surgical Gastroenterology
  • Colorectal Surgery

Background:

  • The
  • in vivo
  • motility of the defunctionalized colon distal to a transverse loop colostomy has not been previously investigated.

Purpose of the Study:

  • To assess the impact of transverse loop colostomy on the motor activity of the defunctionalized colon.

Main Methods:

  • Clinical evaluation and colonic manometry were performed on thirteen patients prior to stoma closure.
  • Colonic motility was assessed in both fasting and fed states, examining both the right and distal colon.

Main Results:

  • Quantitative and qualitative manometric analysis revealed persistent motor activity in the diverted colon, though regular patterns were absent.
  • Aboral propagated contractions (PCs) were occasionally observed spreading from the right to the distal colon.
  • The response to a standard meal increased proximal and distal colonic activity by over 40% and 35%, respectively, compared to fasting values.

Conclusions:

  • Motility of the defunctionalized colon is preserved in patients who have undergone a transverse loop colostomy.