Document Detail

Comparison of a Novel Lycra Tracheal Tube Cuff to Standard PVC and Polyurethane Cuffs for Fluid Leak Prevention.
MedLine Citation:
PMID:  21496368     Owner:  NLM     Status:  Publisher    
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.
Theodor Kolobow; Massimo Cressoni; Myra Epp; Ivan Corti; Paolo Cadringher; Alberto Zanella
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-15
Journal Detail:
Title:  Respiratory care     Volume:  -     ISSN:  0020-1324     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7510357     Medline TA:  Respir Care     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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