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KMID : 0895520140180020035
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Journal of the Korean Society of Emergency Medical Technology
2014 Volume.18 No. 2 p.35 ~ p.43
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Comparison of bimanual laryngoscopy, backward-rightward pressure, and cricoid pressure in difficult airway management: A manikin study
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Choi Hae-Kyung
Jung Hyung-Keon
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Abstract
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Purpose: The purpose of this study was to establish novice user guidelines for efficient external laryngeal manipulation for intubation in difficult airway management.
Methods: This study included 59 pre-qualified junior and senior emergency medical service students. The participants were instructed at random to intubate a manikin equipped with a cervical collar, thus simulating a difficult airway, using three types of external laryngeal manipulation: bimanual laryngoscopy, backward-rightward pressure, and cricoid pressure. The resultant intubation time and glottic view grade scores were estimated.
Results: Intubation time was longest using the bimanual manipulation method, followed by cricoid pressure and backward-rightward pressure. A low Cormack-Lehane glottic view score was obtained regardless of the assisted compression method used.
Conclusion: Backward-rightward pressure may be the most efficient method of external laryngeal manipulation on the basis of the intubation time and improvement in glottic view.
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KEYWORD
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Bimanual manipulation, Cricoid pressure, Backward-rightward pressure, Cormack-Lehane glottic view
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