Editorial Type:
Article Category: Other
 | 
Online Publication Date: 01 Jan 2014

Comparison of Insertion of the Modified i-gel Airway for Oral Surgery With the LMA Flexible: A Manikin Study

DDS, PhD,
DDS, PhD,
MD,
MD, PhD,
MD, PhD, and
DDS, PhD
Page Range: 145 – 149
DOI: 10.2344/0003-3006-61.4.145
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Abstract

We previously modified the i-gel airway to enable its use in the field of oral and maxillofacial surgery and reported its fabrication methods. In general, the standard i-gel airway is quick to insert and has a high success rate, but the modified i-gel airway has yet to be assessed for these attributes. We, therefore, set out to compare the ease of insertion of the modified i-gel airway with the LMA Flexible to investigate the usefulness of the modified i-gel airway. The study participants, who included 20 new interns with no experience using either the LMA Flexible or the modified i-gel airway, inserted each device 3 times into an intubation practice manikin. The variables measured in this study were insertion time and rate of successful insertions. Mean insertion time over 3 attempts was significantly shorter for the modified i-gel™ airway (18.9 ± 4.7 seconds) than the LMA Flexible (24.9 ± 5.1 seconds, P < .001). The rate of successful insertions as a total of all 3 attempts was significantly higher for the modified i-gel airway (56/60 times, 93.3%) than the LMA Flexible (45/60 times, 75%; P = .012). When used by an inexperienced operator, the modified i-gel™ airway is faster and has a higher success rate than the LMA Flexible, suggesting that it can be easily manipulated during insertion.

Figure 1.
Figure 1.

LMA Flexible (top) and modified i-gel airway (bottom).


Figure 2.
Figure 2.

Time to successful intubation with the LMA Flexible and modified i-gel airway. The x-axis represents the number of intubation attempts, and the y-axis represents the intubation time (seconds). Data represent mean (SD). * P < .05 versus the first attempt.


Contributor Notes

Address correspondence to Dr Takuro Sanuki, Department of Anesthesiology, Osaka Dental University, 1-5-17 Otemae, Chuo-ku, Osaka 540-0008, Japan; odu9847@yahoo.co.jp.
Received: 10 Jan 2014
Accepted: 24 Aug 2014
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