Document Detail

Physical principles of available adjustable gastric bands: how they work.
MedLine Citation:
PMID:  15479603     Owner:  NLM     Status:  MEDLINE    
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.
Martin Fried; Wolfgang Lechner; Karin Kormanova
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Obesity surgery     Volume:  14     ISSN:  0960-8923     ISO Abbreviation:  Obes Surg     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-10-13     Completed Date:  2005-01-11     Revised Date:  2007-12-05    
Medline Journal Info:
Nlm Unique ID:  9106714     Medline TA:  Obes Surg     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  1118-22     Citation Subset:  IM    
Obesity Treatment Centre, ISCARE a.s., Prague, and 1st Medical Faculty Charles University Prague, Czech Republic.
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MeSH Terms
Equipment and Supplies / adverse effects*
Gastric Balloon / adverse effects*
Gastroplasty / instrumentation*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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