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Masui. 2014 May;63(5):586-9.

[Comparison of TaperGuard tube and the Portex Softseal for prevention of vomitus leakage in an in vitro simulation airway model].

[Article in Japanese]

Abstract

BACKGROUND:

Microaspiration of vomitus can cause a serious condition known as Mendelson's syndrome. The present study used simulated stomach contents and an airway model to compare a tracheal tube with a tapered cuff (Taper) to the conventional high volume low pressure cuff (HVLP) in their abilities to prevent microaspiration.

METHODS:

The automated cuff pressure was adjusted to 10, 20, and 30 cmH2O. We poured 5 ml of simulated stomach contents above the cuff in the vertically situated airway model and measured the leakage volume after 5 minutes as well as 4 hours.

RESULTS:

After 5 minutes, leakage volume was significantly lower for the Taper than for the HVLP at 10 cmH2O, but not for 20 and 30 cmH2O. After 4 hours, stomach content leakage was significantly less with the Taper than with the HVLP, regardless of cuff pressure (P < 0.05).

CONCLUSIONS:

We conclude that the Taper may be more effective than the conventional HVLP in preventing vomitus microaspiration in an airway model simulation.

PMID:
24864588
[Indexed for MEDLINE]

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