Comparison of the Flexiblade levering laryngoscope with the English Macintosh laryngoscope in patients with a poor laryngoscopic view

Background. Video laryngoscopes provide better view and can improve ease of intubation compared with standard laryngoscopes. Methods. A prospective randomized study was done on 60 patients, 18 to 65 years old, comparing McGrath video laryngoscope and Macintosh laryngoscope. The aim was to compare the ease, efficacy, and usability of them during routine airway management. The primary endpoint was duration of intubation and the secondary endpoints were Cormack and Lehane grade of laryngoscopic view, number of intubation attempts, and incidence of complications. Results. There was an increase in total duration of intubation with McGrath video laryngoscope with 42.9 ± 19.5 seconds compared to Macintosh laryngoscope with 17.9 ± 4.6 seconds. In Macintosh group, 73.3% had grade I, 20% had grade II, and 6.7% had grade III Cormack Lehane view, while in McGrath group, 83.3% had grade I, 13.3% had grade II, and 3.3% had grade III. In McGrath group, 6 patients (20%) required more than 120 seconds to get intubated and only 73.3% were intubated in 1 attempt, while patients in Macintosh group had 100% successful intubation in 1 attempt. Pharyngeal trauma was seen with McGrath videolaryngoscopy. Conclusion. Duration of laryngoscopy, intubation, and total duration of intubation were significantly higher in McGrath group than in Macintosh group. McGrath group required a higher number of intubation attempts.

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Airway Management with Cervical Spine Immobilisation: A Comparison between the Macintosh Laryngoscope, Truview Evo2, and Totaltrack VLM Used by Novices—A Manikin Study

BioMed Research International ◽

10.1155/2016/1297527 ◽

2016 ◽

Vol 2016 ◽

pp. 1-5 ◽

Cited By ~ 5

Author(s):

Dawid Aleksandrowicz ◽

Tomasz Gaszyński

Keyword(s):

Cervical Spine ◽

Airway Management ◽

Macintosh Laryngoscope ◽

Spine Injury ◽

Trauma Patients ◽

Laryngoscopic View ◽

Ventilation Time ◽

Spine Mobility ◽

Airway Devices ◽

Time Required

Airway management in patients with suspected cervical spine injury plays an important role in the pathway of care of trauma patients. The aim of this study was to evaluate three different airway devices during intubation of a patient with reduced cervical spine mobility. Forty students of the third year of emergency medicine studies participated in the study (F=26,M=14). The time required to obtain a view of the entry to the larynx and successful ventilation time were recorded. Cormack-Lehane laryngoscopic view and damage to the incisors were also assessed. All three airway devices were used by each student (a novice) and they were randomly chosen. The mean time required to obtain the entry-to-the-larynx view was the shortest for the Macintosh laryngoscope 13.4 s (±2.14). Truview Evo2 had the shortest successful ventilation time 35.7 s (±9.27). The best view of the entry to the larynx was obtained by the Totaltrack VLM device. The Truview Evo2 and Totaltrack VLM may be an alternative to the classic Macintosh laryngoscope for intubation of trauma patients with suspected injury to the cervical spine. The use of new devices enables achieving better laryngoscopic view as well as minimising incisor damage during intubation.

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Comparison of Laryngoscopic View and Hemodynamic Changes with Flexitip McCoy and Macintosh Laryngoscope Blade in Predicted Easy and Difficult Airway

Open Journal of Anesthesiology ◽

10.4236/ojanes.2013.35061 ◽

2013 ◽

Vol 03 (05) ◽

pp. 278-282

Author(s):

Zia Arshad ◽

Haider Abbas ◽

Jaishree Bogra ◽

Sulekha Saxena

Keyword(s):

Difficult Airway ◽

Macintosh Laryngoscope ◽

Laryngoscope Blade ◽

Laryngoscopic View ◽

Hemodynamic Changes

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Evaluation of the GlideScope Direct: A New Video Laryngoscope for Teaching Direct Laryngoscopy

Anesthesiology Research and Practice ◽

10.1155/2012/820961 ◽

2012 ◽

Vol 2012 ◽

pp. 1-5 ◽

Cited By ~ 2

Author(s):

Darwin Viernes ◽

Allan J. Goldman ◽

Richard E. Galgon ◽

Aaron M. Joffe

Keyword(s):

Success Rate ◽

Direct Laryngoscopy ◽

Macintosh Laryngoscope ◽

Indirect Laryngoscopy ◽

Video Laryngoscope ◽

Laryngoscopic View ◽

Training Tool ◽

Direct Laryngoscope ◽

Video Images

Background. Teaching direct laryngoscopy is limited by the inability of the instructor to simultaneously view the airway with the laryngoscopist. Our primary aim is to report our initial use of the GlideScope Direct, a video-enabled, Macintosh laryngoscope intended primarily as a training tool in direct laryngoscopy.Methods. The GlideScope Direct was made available to anyone who planned on performing direct laryngoscopy as the primary technique for intubation. Novices were those who had performed <30 intubations.Results. The GlideScope Direct was used 123 times as primarily a direct laryngoscope while the instructor viewed the intubation on the monitor. It was highly successful as a direct laryngoscope (93% success). Salvage by indirect laryngoscopy occurred in 7/9 remaining patients without changing equipment. Novices performed 28 intubations (overall success rate of 79%). In 6 patients, the instructor took over and successfully intubated the patient. Instructors used the video images to guide the operator in 16 (57%) of those patients. Seven different instructors supervised the 28 novices, all of who subjectively felt advantaged by having the laryngoscopic view available.Conclusions. The GlideScope Direct functions similarly to a Macintosh laryngoscope and provides the instructor subjective reassurance, while providing the ability to guide the trainee laryngoscopist.

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Improved Laryngoscopic View with the Video-MacIntosh Laryngoscope

Anesthesiology ◽

10.1097/00000542-200209002-00564 ◽

2002 ◽

Vol 96 (Sup 2) ◽

pp. A564 ◽

Cited By ~ 1

Author(s):

Suzanne Karan ◽

Russell Norton ◽

Ashwani Chhibber ◽

Marshal Kaplan ◽

Denham Ward

Keyword(s):

Macintosh Laryngoscope ◽

Laryngoscopic View

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C-MAC D-Blade vs Airtraq for Intubation with Manual Inline Axial Stabilisation- A Randomised Clinical Trial

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2021/46676.14393 ◽

2021 ◽

Author(s):

Nikitha Mani ◽

Nagalakshmi Palanisamy ◽

Mamie Zachariah ◽

Sagiev Koshy George ◽

Allen Aloysius Dsilva ◽

...

Keyword(s):

Clinical Trial ◽

Heart Rate ◽

Repeated Measures ◽

Macintosh Laryngoscope ◽

Randomised Clinical Trial ◽

Significant Rise ◽

P Value ◽

Laryngoscopic View ◽

Comparison Results ◽

Intergroup Comparison

Introduction: One of the most important skills in anaesthesia is securing the airway with an endotracheal tube. Difficult tracheal intubation however is considered one of the major contributors of anaesthesia related morbidity and mortality. Video laryngoscopy offers several advantages during endotracheal intubation. The view of the glottis provided by Videolaryngoscopes is better compared to the Macintosh laryngoscope in difficult airways which makes it more attractive for routine difficult airway intubations. Aim: To compare the time taken for intubation between two Videolaryngoscopes, namely C-MAC D-blade and Airtraq and to assess the quality of laryngoscopy view between the two groups. Materials and Methods: This was a randomised clinical trial conducted in 116 American Society of Anesthesiologists 1 (ASA1) and ASA2 patients undergoing elective surgeries in Pondicherry Institute of Medical Sciences. Patients are randomised into two groups, Group C-MAC D-blade and Group Airtraq by computer randomisation. Statistical analysis was performed using t-test, Repeated measures of ANOVA was used to find the significance from preinduction to 10 mins period for each group and Bonferoni’s correction for intergroup comparison. Results: The time taken for intubation was comparable in two study groups (Group C-MAC D-blade 41.88 secs) and (Group Airtraq -40.78 sec) with p-value of 0.734. Laryngoscopic view was not statistically significant with p-value of 0.083. Optimisation maneuvers were required in 63.8% in Group Airtraq on comparison with 44.8% in Group C-MAC D-blade. In both Group C-MAC D-blade and Group Airtraq, there was a significant rise in the heart rate and BP at 0 minute compared to preinduction. But after 5 minutes, the heart rate and BP were back to preinduction values. Conclusion: Both the Videolaryngoscopes, C-MAC D-blade and Airtraq performed equally, with respect to time taken for intubation and laryngoscopic view. However, External Laryngeal Manipulation (ELM) was required more in Group Airtraq and was statistically significant.

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