BACKGROUND: A high-volume low-pressure endotracheal tube (ETT) cuff forms folds along its contact with the trachea, allowing mucus leakage into the lungs. We developed a thin-walled ETT cuff made of Lycra polyurethane. METHODS: In vitro, we tested 6 of each of the new prototype Lycra cuff, the Mallinkrodt Hi-Lo ETT (polyvinyl chloride cuff), and the Kimberly-Clark Microcuff ETT (polyurethane cuff), for leakage, in an acrylic mock trachea (inner diameter 20-mm), with a cuff inflation pressure of 20 cm H2O. We poured 15 mL of methylene-blue colored water into the acrylic tube above the cuff and observed for leakage for 24 hours. RESULTS: The Lycra cuffs had no folds upon inflation in the mock trachea and completely prevented fluid leakage for 24 hours (P<.001 vs the Hi-Lo and the Microcuff). The average leakage past the Hi-Lo was 1,182±1,321 mL/h. The average leakage past the Microcuff was 1.2 ± 0.4 mL/h (P <.001 vs the Hi-Lo). CONCLUSIONS: Our Lycra cuff provided complete tracheal sealing in vitro.
Comparison of a novel lycra endotracheal tube cuff to standard polyvinyl chloride cuff and polyurethane cuff for fluid leak prevention / T. Kolobow, M. Cressoni Mainoni, M. Epp, I. Corti, P. Cadringher, A. Zanella. - In: RESPIRATORY CARE. - ISSN 0020-1324. - 56:8(2011 Aug), pp. 1095-1099.
|Titolo:||Comparison of a novel lycra endotracheal tube cuff to standard polyvinyl chloride cuff and polyurethane cuff for fluid leak prevention|
CRESSONI MAINONI, MASSIMO TOMMASO (Secondo)
|Parole Chiave:||Cuff; Endotracheal tube; Mechanical ventilation; Ventilator; Ventilator-associated pneumonia|
|Settore Scientifico Disciplinare:||Settore MED/41 - Anestesiologia|
|Data di pubblicazione:||ago-2011|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.4187/respcare.01099|
|Appare nelle tipologie:||01 - Articolo su periodico|