Simulated tracheal intubation in cervical spine injury: comparison of the video-optical intubation stylet with the video-optical laryngoscope in a mannequin

Tracheal intubation in cervical spine injury patients with application of Manual In Line Stabilization (MILS) of the cervical spine in neutral position is a challenge for the anesthesiologist since it makes visualization of the larynx more difficult using conventional laryngoscopy. Our study was conducted to compare ease of intubation using Airtraq and Intubating laryngeal mask airway(ILMA) in simulated cervical spine injury patient using MILS. 100 ASA I/II patients (without cervical spine injury), aged 18-60 years were randomly allocated in two groups -Group A: Airtraq (n=50), Group I: ILMA (n=50). General anaesthesia was given as per standard protocol in all the patients, after that MILS was applied and patients intubated using Airtraq in group A and ILMA in group I with neck in neutral position. Time taken for intubation, number of attempts for intubation, ease of intubation with Airtraq/ILMA, hemodynamics and complications were compared.The mean time taken for intubation in the Group A was 12.6 ± 6.6 seconds and in the Group, I was 85.8 ± 36.6 seconds (p<0.001). Number of intubations attempts in Group A was significantly less as compared to the Group I (p= 0.027).Airtraq is a safer and faster alternative when compared to ILMA in patients with simulated cervical spine injury using manual in line stabilization.

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Similitude and Disparity between Airtraq and McCoy Laryngoscope in Simulated Cervical Spine Injury during Tracheal Intubation: A Prospective Randomized Study

Indian Journal of Anaesthesia and Analgesia ◽

10.21088/ijaa.2349.8471.5818.5 ◽

2018 ◽

Vol 5 (8) ◽

pp. 1280-1286

Author(s):

Anil Shetty ◽

◽

Prashanth C. ◽

Anand Bangera ◽

◽

...

Keyword(s):

Cervical Spine ◽

Tracheal Intubation ◽

Cervical Spine Injury ◽

Randomized Study ◽

Prospective Randomized Study ◽

Spine Injury

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Video Laryngoscopic Intubation Using the King VisionTM Laryngoscope in a Simulated Cervical Spine Trauma: A Comparison Between Non-Channeled and Channeled Disposable Blades

Diagnostics ◽

10.3390/diagnostics10030139 ◽

2020 ◽

Vol 10 (3) ◽

pp. 139 ◽

Cited By ~ 1

Author(s):

Jiri Votruba ◽

Tomas Brozek ◽

Jan Blaha ◽

Tomas Henlin ◽

Tomas Vymazal ◽

...

Keyword(s):

Cervical Spine ◽

Tracheal Intubation ◽

Cervical Spine Injury ◽

Primary Outcome ◽

Subjective Assessment ◽

Spine Injury ◽

Success Rates ◽

Neck Trauma ◽

Time Required ◽

Spine Movement

Videolaryngoscopes may reduce cervical spine movement during tracheal intubation in patients with neck trauma. This manikin study aimed to compare the performance of disposable non-channeled and channeled blades of the King Vision™ videolaryngoscope in simulated cervical spine injury. Fifty-eight anesthesiologists in training intubated the TruMan manikin with the neck immobilized using each blade in a randomized order. The primary outcome was the time needed for tracheal intubation, secondary aims included total success rate, the time required for visualization of the larynx, number of attempts, view of the vocal cords, and subjective assessment of both methods. Intubation time with the channeled blade was shorter, with a median time of 13 s (IQR 9–19) vs. 23 s (14.5–37.5), p < 0.001, while times to visualization of the larynx were similar in both groups (p = 0.54). Success rates were similar in both groups, but intubation with the non-channeled blade required more attempts (1.52 vs. 1.05; p < 0.001). The participants scored the intubation features of the channeled blade significantly higher, while visualization features were scored similarly in both groups. Both blades of the King Vision™ videolaryngoscope are reliable intubation devices in a simulated cervical spine injury in a manikin model when inserted by non-experienced operators. The channeled blade allowed faster intubation of the trachea.

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