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Randomized Controlled Trial
. 2009 Mar;64(3):309-14.
doi: 10.1111/j.1365-2044.2008.05745.x.

Evaluation of Tracheal Tube Introducers in Simulated Difficult Intubation

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Randomized Controlled Trial

Evaluation of Tracheal Tube Introducers in Simulated Difficult Intubation

C Janakiraman et al. Anaesthesia. .
Free article


In a randomised cross-over study, 72 anaesthetists attempted to place Pro-Breathe, new Portex, and Frova single-use tracheal tube introducers and an Eschmann multiple-use introducer in the trachea of a manikin set to simulate a grade 3 laryngeal view. Successful placement (proportion, 95% confidence interval) of either the Frova (78%, 67-86%) or the Eschmann introducer (64%, 52-74%) was significantly more likely (p < 0.0001) than with the Pro-Breathe (4%, 1-12%) or the new Portex introducer (13%, 7-22%). The difference between the success rates for the Frova and the Eschmann introducers (p = 0.08) was not significant. A separate experiment revealed that the peak force that could be exerted by the Pro-Breathe, new Portex and Frova single-use introducers were three to six times greater than that which could be exerted by the Eschmann introducer (p < 0.0001). The single-use introducers are more likely to cause tissue trauma during placement, particularly if held close to the tip.

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