| Anal sphincter response to distension. | |
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MedLine Citation:
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PMID: 11355318 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Resting anal pressure as determined by manometry is unsuited for assessing the competence of a sphincter. To validate a compliance method of sphincter evaluation we investigated the response of the anal canal to distension. In 20 healthy subjects the anal sphincter was distended using a cylindrical balloon probe subjected to continuous inflation. Two speeds of distension were used: 12 and 80 ml/min. Deflation, at the rate of inflation, immediately followed the inflation at 12 ml/min, and at 80 ml/min was performed after a deformation volume of 12 ml was maintained for 2 min. The response of the anal sphincter to 12 ml/min distension was characterized by an initial phase of resistance followed by relaxation of the anal sphincter in all subjects. In contrast, at 80 ml/min no opening was obtained. During the deformation a biomechanical relaxation curve was recorded. We conclude that the anal sphincter acts as a low-pass filter and not only as a pressure barrier. The response of the anal sphincter to distension is a simple test, which provides functional information on the behavior of the anal sphincteric zone. |
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Authors:
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M Bouchoucha; A Faye; M Arsac; F Rocaries |
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Publication Detail:
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Type: Clinical Trial; Journal Article |
Journal Detail:
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Title: International journal of colorectal disease Volume: 16 ISSN: 0179-1958 ISO Abbreviation: Int J Colorectal Dis Publication Date: 2001 Apr |
Date Detail:
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Created Date: 2001-05-17 Completed Date: 2001-10-04 Revised Date: 2005-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8607899 Medline TA: Int J Colorectal Dis Country: Germany |
Other Details:
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Languages: eng Pagination: 119-25 Citation Subset: IM |
Affiliation:
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Laboratoire de Physiologie Digestive, Hôpital Broussais, 96 rue Didot, 75014 Paris, France. michel.bouchoucha@brs.ap-hop-paris.fr |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Anal Canal / physiology* Female Humans Manometry / methods* Muscle Contraction Muscle Relaxation Pressure Rectum / physiopathology* Reference Values Sensitivity and Specificity |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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