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Comparison of the i-gel and other supraglottic airways in adult manikin studies: Systematic review and meta-analysis

 Jiwon An  ;  Sang Beom Nam  ;  Jong Seok Lee  ;  Jinae Lee  ;  Hanna Yoo  ;  Hye Mi Lee  ;  Min-Soo Kim 
 MEDICINE, Vol.96(1) : 5801, 2017 
Journal Title
Issue Date
Adult ; Airway Management/instrumentation* ; Airway Management/methods ; Cardiopulmonary Resuscitation/instrumentation* ; Cardiopulmonary Resuscitation/methods ; Equipment Design ; Humans ; Laryngeal Masks* ; Manikins
adult ; airway management ; laryngeal masks ; manikins
BACKGROUND: The i-gel has a gel-like cuff composed of thermoplastic elastomer that does not require cuff inflation. As the elimination of cuff inflation may shorten insertion time, the i-gel might be a useful tool in emergency situations requiring prompt airway care. This systematic review and meta-analysis of previous adult manikin studies for inexperienced personnel was performed to compare the i-gel with other supraglottic airways. METHODS: We searched PubMed, the Cochrane Library, and EMBASE for eligible randomized controlled trials (RCTs) published before June 2015, including with a crossover design, using the following search terms: "i-gel," "igel," "simulation," "manikin," "manikins," "mannequin," and "mannequins." The primary outcomes of this review were device insertion time and the first-attempt success rate of insertion. RESULTS: A total of 14 RCTs were included. At the initial assessment without difficult circumstances, the i-gel had a significantly shorter insertion time than the LMA Classic, LMA Fastrach, LMA Proseal, LMA Unique, laryngeal tube, Combitube, and EasyTube. However, a faster insertion time of the i-gel was not observed in comparisons with the LMA Supreme, aura-i, and air-Q. In addition, the i-gel did not show the better results for the insertion success rate when compared to other devices. CONCLUSION: The findings of this meta-analysis indicated that inexperienced volunteers placed the i-gel more rapidly than other supraglottic airways with the exception of the LMA Supreme, aura-i, and air-Q in manikin studies. However, the quicker insertion time is clinically not relevant. The unapparent advantage regarding the insertion success rate and the inherent limitations of the simulation setting indicated that additional evidence is necessary to confirm these advantages of the i-gel in an emergency setting.
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1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Min Soo(김민수) ORCID logo https://orcid.org/0000-0001-8760-4568
Nam, Sang Beom(남상범) ORCID logo https://orcid.org/0000-0002-9704-1866
An, Ji Won(안지원)
Lee, Jong Seok(이종석) ORCID logo https://orcid.org/0000-0002-7945-2530
Lee, Hye Mi(이혜미) ORCID logo https://orcid.org/0000-0002-0432-1878
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