| A novel magnetic device to prevent fecal incontinence (preliminary study). | |
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MedLine Citation:
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PMID: 18231796 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND AIMS: In this research we propose an original magnetic device to strengthen the hypo-atonic anal sphincter and prevent fecal incontinence. METHODS: The device consists in a couple of small magnetic plaques to be surgically inserted in the wall of the anal canal between the external and internal anal sphincters with the opposite polarities face to face, so that, attracting themselves, close the anal lumen. Three couples of magnets made of materials of different magnetic force (neodymium>ferrite>plastoferrite) were evaluated in each of three swine anatomical preparations by measuring the endoanal pressure with a manometric catheter, both before and after magnet implantation. The mean pressures obtained before and after magnet insertion were statistically compared with Student t test. RESULTS: The endoanal pressure after the insertion of neodymium magnets was 79.7+/-13.1 (mean+/-SD), after ferrite magnets was 42.1+/-5.6 mmHg and after plastoferrite magnets was 21.6+/-4.6 mmHg, all of them significantly higher than the pressure recorded in basal conditions (1.72+/-0.71 mmHg). CONCLUSION: This research demonstrated that the implantation of a couple of magnets in the wall of the anal canal is able to create a high pressure zone of a value sufficient to prevent fecal incontinence and that the strength of this "dynamic closure" can be modulated by using magnets of various attraction force, so allowing a "tailored correction" of the anal sphincter hypotension. |
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Authors:
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Mauro Bortolotti; Giampaolo Ugolini; Annamaria Grandis; Isacco Montroni; Giosuè Mazzero |
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Publication Detail:
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Type: Journal Article Date: 2008-01-30 |
Journal Detail:
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Title: International journal of colorectal disease Volume: 23 ISSN: 0179-1958 ISO Abbreviation: Int J Colorectal Dis Publication Date: 2008 May |
Date Detail:
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Created Date: 2008-03-19 Completed Date: 2008-07-17 Revised Date: - |
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: 499-501 Citation Subset: IM |
Affiliation:
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Department of Internal Medicine and Gastroenterology, University of Bologna, Bologna, Italy. bormau@tin.it |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Anal Canal
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physiology*,
surgery Animals Equipment Design Fecal Incontinence / physiopathology, prevention & control* Ferric Compounds Magnetics / instrumentation* Manometry Materials Testing Neodymium Pilot Projects Pressure Swine |
| Chemical | |
Reg. No./Substance:
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0/Ferric Compounds; 1317-54-0/ferrite; 7440-00-8/Neodymium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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