You are not logged in.

The ideal Ileal-Pouch design : a long-term randomized control trial of J- vs W-pouch construction

McCormick, P. H., Guest, G. D., Clark, A. J., Petersen, D., Clark, D. A., Stevenson, A. R., Lumley, J. W. and Stitz, R. W. 2012, The ideal Ileal-Pouch design : a long-term randomized control trial of J- vs W-pouch construction, Diseases of the Colon and Rectum, vol. 55, no. 12, pp. 1251-1257, doi: 10.1097/DCR.0b013e318270327f.

Attached Files
Name Description MIMEType Size Downloads

Title The ideal Ileal-Pouch design : a long-term randomized control trial of J- vs W-pouch construction
Author(s) McCormick, P. H.
Guest, G. D.
Clark, A. J.
Petersen, D.
Clark, D. A.
Stevenson, A. R.
Lumley, J. W.
Stitz, R. W.
Journal name Diseases of the Colon and Rectum
Volume number 55
Issue number 12
Start page 1251
End page 1257
Total pages 7
Publisher Lippincott Williams & Wilkins
Place of publication New York, N. Y.
Publication date 2012-12
ISSN 0012-3706
Keyword(s) Bowel function
Ileal pouch-anal anastomosis
Ulcerative colitis
Summary BACKGROUND: The IPAA has become established as the preferred technique for restoring intestinal continuity postproctocolectomy. The ideal pouch design has not been established. W-pouches may give better functional results owing to increased volume, whereas the J-pouch’s advantage is its straightforward construction. We report short- and long-term results of an randomized control trial designed to establish the ideal pouch.

DESIGN: Ninety-four patients were randomly assigned to J- and W-pouches (49:45) and assessed at 1 and 8.7 years postoperatively. Assessment was questionnaire based and designed to assess pouch function and patient quality of life.

RESULTS: Eighty-five percent of patients were followed up at 1 year, and 68% were followed up at 8.7 years. At 1 year, there was a significant difference in 24-hour bowel movement frequency J- vs W-pouches 7 vs 5(p < 0.001) and in daytime frequency J- vs W-pouches 6 vs 4 (p < 0.001), with no difference in nocturnal function. At 9-year follow-up, function had equilibrated between the 2 groups: 24-hour bowel movement frequency J- vs W-pouches 6.5 vs 6 (p = 0.36), daytime frequency 5.5 vs 5 (p = 0.233), and nocturnal function 1 vs 1 (p = 0.987). Mean operating time of J- and W-pouches was 195 and 215 minutes (p < 0.05). All other parameters, pad usage, urgency, incontinence, and quality of life, did not differ significantly between groups.

CONCLUSION: These data demonstrate that the theoretical functional advantage conferred on the W-pouch by its greater volume exists only in the short term and is of little consequence to patients’ long-term quality of life. This advantage is attenuated as the pouches mature, resulting in no disparity in pouch function. This, combined with the more consistent, efficient, and easily taught construction of the J-pouch, should conclusively establish it as the optimum ileal-pouch design.
Language eng
DOI 10.1097/DCR.0b013e318270327f
Field of Research 110399 Clinical Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Persistent URL

Document type: Journal Article
Collection: School of Medicine
Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 11 times in TR Web of Science
Scopus Citation Count Cited 11 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 312 Abstract Views, 2 File Downloads  -  Detailed Statistics
Created: Thu, 28 Feb 2013, 11:00:26 EST by Jane Moschetti

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact