| Comparison of a Novel Lycra Tracheal Tube Cuff to Standard PVC and Polyurethane Cuffs for Fluid Leak Prevention. | |
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MedLine Citation:
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PMID: 21496368 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: The high-volume low-pressure tracheal tube cuffs always form folds upon inflation in the trachea, allowing the passage of heavily colonized mucus into the lungs. METHODS: We designed and developed an elastic, thin-walled prototype endotracheal tracheal tube cuff made of Lycra. In-vitro study: we tested the new prototype cuff, the Mallinkrodt Hi-Lo (polyvinyl chloride cuff) and the Microcuff (polyurethane cuff). Six different endotracheal tubes for each type were tested for leakage in a 20 mm internal diameter acrylic tube at 20 cmH₂O inflation pressure by pouring 15 mL of methylene-blue colored water above the cuff to visualize any possible leakage. We observed the ETT cuff for 24 hours. RESULTS: The Lycra cuffs were devoid of folds upon inflation into the mock trachea and completely prevented fluid leakage up to 24 hours (p < 0.0001 vs the Mallinckrodt Hi-Lo and the Microcuff) Instead, the average leakage across the Mallinkrodt Hi-Lo cuff was 1182.2±1321.0 mL/h, the average leakage across the Microcuff was 1.22±0.36 mL/h (p < 0.001 vs the Mallinkrodt Hi-Lo). CONCLUSIONS: A smooth ultra thin elastic Lycra endotracheal tube cuff offers an effective tracheal sealing in-vitro. Further studies are necessary to confirm safety and possible clinical benefits. |
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Authors:
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Theodor Kolobow; Massimo Cressoni; Myra Epp; Ivan Corti; Paolo Cadringher; Alberto Zanella |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-15 |
Journal Detail:
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Title: Respiratory care Volume: - ISSN: 0020-1324 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7510357 Medline TA: Respir Care Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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