| Physical principles of available adjustable gastric bands: how they work. | |
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MedLine Citation:
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PMID: 15479603 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Commonly used adjustable gastric bands function on two different physical principles: low pressure-high volume and high pressure-low volume system. METHODS: A study was carried out to investigate the theoretical and clinical levels of adjustable band volume-pressure features and their possible influence on band-related complications. The theoretical study had two objectives: to define physical principles of impact of the band balloon on the gastric wall at the stoma region, and to apply a physical formula for calculating this data. The objectives of the clinical part of the study were to construct a simple reliable measuring device, enabling data collection on an out-patient basis from patients who had undergone gastric banding with the two band systems, to support or refute the theoretically calculated results. RESULTS: A physical formula calculated the pressure applied by the different band systems on the gastric wall in the stoma region. Calculations revealed a >100% difference in pressure caused by the respective bands. Invasive pressure measurements in 35 patients with the different balloon systems agreed with the calculated data, and found a >100% difference in pressure affecting the stoma wall both at rest and during meals. CONCLUSIONS: Differences in pressure on the gastric wall related to the physical system on which the bands operate may be a partial explanation for long-term complications of respective bands. |
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Authors:
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Martin Fried; Wolfgang Lechner; Karin Kormanova |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Obesity surgery Volume: 14 ISSN: 0960-8923 ISO Abbreviation: Obes Surg Publication Date: 2004 Sep |
Date Detail:
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Created Date: 2004-10-13 Completed Date: 2005-01-11 Revised Date: 2007-12-05 |
Medline Journal Info:
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Nlm Unique ID: 9106714 Medline TA: Obes Surg Country: Canada |
Other Details:
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Languages: eng Pagination: 1118-22 Citation Subset: IM |
Affiliation:
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Obesity Treatment Centre, ISCARE a.s., Prague, and 1st Medical Faculty Charles University Prague, Czech Republic. docfried@volny.cz |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Biomechanics Equipment and Supplies / adverse effects* Gastric Balloon / adverse effects* Gastroplasty / instrumentation* Humans Pressure |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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