Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway

BackgroundThe sniffing position is recommended for conventional laryngeal mask airway (LMA) insertion. However, there has been a high success rate of LMA insertion with the head in the neutral position. The effect of a difficult airway on the ease of LMA insertion is not clear. In this study, we com...

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Main Authors: Joo Hyun Jun, Hee Jung Baik, Jong Hak Kim, Youn Jin Kim, Ri-Na Chang
Format: Article
Language:English
Published: Korean Society of Anesthesiologists 2011-04-01
Series:Korean Journal of Anesthesiology
Subjects:
Online Access:http://ekja.org/upload/pdf/kjae-60-244.pdf
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author Joo Hyun Jun
Hee Jung Baik
Jong Hak Kim
Youn Jin Kim
Ri-Na Chang
author_facet Joo Hyun Jun
Hee Jung Baik
Jong Hak Kim
Youn Jin Kim
Ri-Na Chang
author_sort Joo Hyun Jun
collection DOAJ
description BackgroundThe sniffing position is recommended for conventional laryngeal mask airway (LMA) insertion. However, there has been a high success rate of LMA insertion with the head in the neutral position. The effect of a difficult airway on the ease of LMA insertion is not clear. In this study, we compared the ease of LMA ProSeal™ (PLMA) insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway.MethodsAfter obtaining informed consent from the subjects, we enrolled 144 adult patients (age range: 18-65) with an ASA physical status 1 or 2. After evaluation of the airway, all the patients were grouped into the EA (easy airway) group (n = 68) and the DA (difficult airway) group (n = 76). According to the head position, each group was divided into the EA-SE (extension) group (n = 35), the EA-SN (sniffing) group (n = 33), the DA-SE group (n = 39) and the DA-SN group (n = 37). The success rate and insertion time at the first attempt were evaluated. The position of the PLMA was fiberoptically scored from the mask aperture of the airway tube in the original head position. After the head position was changed to the sniffing and neutral positions in the SE and SN group, respectively, the position of PLMA was re-evaluated fiberoptically.ResultsThe success rate and insertion time at the first attempt and the fiberoptic score showed no significant difference among the groups. After head position was changed, there were no significant changes in the fiberopitc scores.ConclusionsA difficult airway and the head position had no influence on the ease of PLMA insertion and the fiberopic score. Therefore, the head position can be selected according to the individual patient's situation.
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spelling doaj.art-364b2767d5d843abb36cd5c6e481541f2022-12-21T19:52:12ZengKorean Society of AnesthesiologistsKorean Journal of Anesthesiology2005-64192005-75632011-04-0160424424910.4097/kjae.2011.60.4.2447099Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airwayJoo Hyun Jun0Hee Jung Baik1Jong Hak Kim2Youn Jin Kim3Ri-Na Chang4Department of Anesthesiology and Pain Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.Department of Anesthesiology and Pain Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.Department of Anesthesiology and Pain Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.Department of Anesthesiology and Pain Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.Department of Anesthesiology and Pain Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.BackgroundThe sniffing position is recommended for conventional laryngeal mask airway (LMA) insertion. However, there has been a high success rate of LMA insertion with the head in the neutral position. The effect of a difficult airway on the ease of LMA insertion is not clear. In this study, we compared the ease of LMA ProSeal™ (PLMA) insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway.MethodsAfter obtaining informed consent from the subjects, we enrolled 144 adult patients (age range: 18-65) with an ASA physical status 1 or 2. After evaluation of the airway, all the patients were grouped into the EA (easy airway) group (n = 68) and the DA (difficult airway) group (n = 76). According to the head position, each group was divided into the EA-SE (extension) group (n = 35), the EA-SN (sniffing) group (n = 33), the DA-SE group (n = 39) and the DA-SN group (n = 37). The success rate and insertion time at the first attempt were evaluated. The position of the PLMA was fiberoptically scored from the mask aperture of the airway tube in the original head position. After the head position was changed to the sniffing and neutral positions in the SE and SN group, respectively, the position of PLMA was re-evaluated fiberoptically.ResultsThe success rate and insertion time at the first attempt and the fiberoptic score showed no significant difference among the groups. After head position was changed, there were no significant changes in the fiberopitc scores.ConclusionsA difficult airway and the head position had no influence on the ease of PLMA insertion and the fiberopic score. Therefore, the head position can be selected according to the individual patient's situation.http://ekja.org/upload/pdf/kjae-60-244.pdfdiffcult airwaylaryngeal mask airwayneutral positionsniffing position
spellingShingle Joo Hyun Jun
Hee Jung Baik
Jong Hak Kim
Youn Jin Kim
Ri-Na Chang
Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway
Korean Journal of Anesthesiology
diffcult airway
laryngeal mask airway
neutral position
sniffing position
title Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway
title_full Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway
title_fullStr Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway
title_full_unstemmed Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway
title_short Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway
title_sort comparison of the ease of laryngeal mask airway proseal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway
topic diffcult airway
laryngeal mask airway
neutral position
sniffing position
url http://ekja.org/upload/pdf/kjae-60-244.pdf
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