K-Y™ jelly inhibits increase in endotracheal tube cuff pressure during nitrous oxide exposure in vitro

BMC Anesthesiology

Tomio Andoh¹  Yukihide Koyama¹  Hiroyuki Oshika¹  Hiroko Nishioka¹  Naoko Kamoshida¹  Gaku Inagawa²  Sousuke Tanaka³ 

[1] Department of Anesthesiology, Mizonokuchi Hospital, Teikyo University School of Medicine;Department of Anesthesiology, Yokohama Municipal Citizen’s Hospital;Department of Medical Engineering, Mizonokuchi Hospital, Teikyo University School of Medicine;

关键词: K-Y™ jelly;    Lubrication;    Tracheal tube cuff;    Cuff pressure increase;    Nitrous oxide diffusion;   

DOI  :  10.1186/s12871-018-0566-9

来源: DOAJ

【 摘 要 】

Abstract Background The increase in endotracheal tube cuff pressure due to nitrous oxide diffusion is a well-known risk during general anesthesia using nitrous oxide. We hypothesized that lubricating endotracheal tube cuffs with K-Y™ Jelly might inhibit the increase in cuff pressure that occurs during exposure to nitrous oxide. Methods We used two types of endotracheal tube cuffs: one made from ultrathin polyurethane (PU) and another made from conventional polyvinyl chloride (PVC). Using a pediatric trachea model, which consisted of an acrylic cylinder with an internal diameter of 12 mm, we measured changes in the cuff pressure during nitrous oxide exposure in size 5.0-mm internal diameter endotracheal tubes with each type of cuff, with and without lubrication with K-Y™ Jelly. Results During nitrous oxide exposure, the increase in cuff pressure was significantly lower in the lubricated cuffs than in the non-lubricated cuffs in both types of cuffs (PVC, P < 0.0001; PU, P < 0.0001). However, the cuff compliance in the trachea model was unaffected by lubrication in both types of cuffs. Conclusions Lubrication of endotracheal tube cuffs with K-Y™ Jelly may effectively delay the increase in cuff pressure that occurs during general anesthesia using nitrous oxide.

【 授权许可】

Unknown