Comparison of airwayscope to direct laryngoscope and lightwand for cardiovascular response in patients with difficult airway

ObjectiveWe sought to determine whether the use of Pentax-AWS Airwayscope (AWS) applied less force on oral structures during intubation attempts than a conventional direct laryngoscope (DL).DesignProspective cross-over study.ParticipantsA total of 37 physicians (9 transitional-year residents, 20 emergency medicine residents and 8 emergency physicians) were enrolled.InterventionsWe used four simulation scenarios according to the difficulty of intubation and devices and used a high-fidelity simulator to quantify the forces applied on the oral structures.Outcome measuresPrimary outcomes were the maximum force applied on the maxillary incisors and tongue. Other outcomes of interest were time to intubation and glottic view during intubation attempts.ResultsThe maximum force applied on the maxillary incisors in the normal airway scenario was higher with the use of AWS than that with DL (107 newton (N) vs 77 N, p=0.02). By contrast, the force in the difficult airway scenario was significantly lower with the use of AWS than that of the DL (89 N vs 183 N, p<0.01). Likewise, the force applied on the tongue was significantly lower with the use of AWS than the use of DL in both airway scenarios (11 N vs 27 N, p<0.001 in the normal airway scenario; 12 N vs 40 N, p<0.01 in the difficult airway scenario).ConclusionsThe use of AWS during intubation attempts was associated with decreased forces applied to oral structures in the simulated difficult airway scenario.

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Systematic Review Comparison of Endotracheal Intubation Success Rate Using McGrath® Mac Videolaryngoscope with Direct Laryngoscope (Macintosh): A Manikin Studies

Indonesian Journal of Anesthesiology and Reanimation ◽

10.20473/ijar.v3i12021.22-33 ◽

2021 ◽

Vol 3 (1) ◽

pp. 22

Author(s):

Dicha Niswansyah Auliyah ◽

Prananda Surya Airlangga ◽

Lilik Herawati

Keyword(s):

Systematic Review ◽

Difficult Airway ◽

Success Rate ◽

Endotracheal Intubation ◽

Medical Personnel ◽

Learning Material ◽

Screening Process ◽

Direct Laryngoscope ◽

Normal Airway ◽

Intubation Success Rate

Introduction: McGrath® MAC videolaryngoscope is a single-handed device designed to facilitate intubation in patients both in patients with normal airway conditions (without any complications) or airway conditions with complications such as cervical spine and/or anatomic abnormalities. Objective: This study aims to compare McGrath® MAC videolaryngoscope and direct laryngoscope using Macintosh blades as learning material or study simulators for medical personnel (including anesthesiologist and paramedics) and novice operator (medical students). Method: this study is a systematic review using the PRISMA method which was carried out systematically. Data was collected through Pubmed, direct science, EBSCOHost, and Proquest using the keywords ‘airway management ', ‘laryngoscopy', and 'manikin'. Journal included based on published publication time between 2008 and 2020, a study using SimMan Laerdal Airway manikin, a journal discussing intubation using McGrath® MAC videolaryngoscope and direct laryngoscope with Macintosh blades here, where it is normal airway (without complications) and difficult airway. Results: 1556 journals were collected through 4 journal search sites and then carried out a screening process for the publication year approved in 2008 to 2020. Four studies use adult manikin SimMan Laerdal Airway including 247 participants were included in this systematic review. Conclusion: Based on journals that have been reviewed, McGrath® MAC videolaryngoscope provides better and superior results compared to Macintosh in terms of the success rate and visualization of glottis. Also, the intubation time using McGrath® MAC videolaryngoscope is shorten compared to Macintosh both on the normal airway (without complication) and difficult airway. The participants (medical personnel and novice operators) in all studies that reviewed prefer to use McGrath® Mac videolaryngoscope instead of using direct laryngoscope with Macintosh blade for Endotracheal Intubation mainly used for learning or study simulators.

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10: Comparing Intubation Success Rates of the Glidescope Videolaryngoscope vs Macintosh Direct Laryngoscope by Novice Operators: A Mannequin Simulated Difficult Airway Study

Annals of Emergency Medicine ◽

10.1016/j.annemergmed.2007.06.038 ◽

2007 ◽

Vol 50 (3) ◽

pp. S4

Author(s):

Y. Ng ◽

Jian Hao K. Wong ◽

M. Ong

Keyword(s):

Difficult Airway ◽

Success Rates ◽

Direct Laryngoscope ◽

Intubation Success ◽

Glidescope Videolaryngoscope

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Comparing the performance of traditional direct laryngoscope with three indirect laryngoscopes: A prospective manikin study in normal and difficult airway scenarios

Emergency Medicine Australasia ◽

10.1111/j.1742-6723.2011.01441.x ◽

2011 ◽

Vol 23 (5) ◽

pp. 606-614 ◽

Cited By ~ 7

Author(s):

Jiann-Ruey Ong ◽

Chee-Fah Chong ◽

Chien-Chih Chen ◽

Tzong-Luen Wang ◽

Chiu-Mei Lin ◽

...

Keyword(s):

Difficult Airway ◽

Direct Laryngoscope ◽

Manikin Study

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Effects of Physical Training on Stuttering

Journal of Speech and Hearing Research ◽

10.1044/jshr.1104.767 ◽

1968 ◽

Vol 11 (4) ◽

pp. 767-776 ◽

Cited By ~ 2

Author(s):

B. Don Franks ◽

Elizabeth B. Franks

Keyword(s):

College Students ◽

Group Therapy ◽

Physical Training ◽

Cardiovascular Response ◽

Training Group ◽

Physical Stress ◽

Submaximal Exercise ◽

Endurance Running ◽

Response To Exercise

Eight college students enrolled in group therapy for stuttering were divided into two equal groups for 20 weeks. The training group supplemented therapy with endurance running and calisthenics three days per week. The subjects were tested prior to and at the conclusion of the training on a battery of stuttering tests and cardiovascular measures taken at rest, after stuttering, and after submaximal exercise. There were no significant differences (0.05 level) prior to training. At the conclusion of training, the training group was significandy better in cardiovascular response to exercise and stuttering. Although physical training did not significantly aid the reduction of stuttering as measured in this study, training did cause an increased ability to adapt physiologically to physical stress and to the stress of stuttering.

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