This hemodynamic response due to laryngoscopy
and intubation is the result of an increase in the levels of circulatory catecholamines which cause the elevation of blood pressure and heart rate.
The operating room anesthesiologist was responsible for identifying the laryngoscopy
technique to which each randomized patient had been allocated.
HR values significantly increased with the completion of laryngoscopy
and intubation at [T.sub.2] for the CL, MC and CM groups but persisted without a significant change for the MG group.
(19) Metoprolol and labetalol do not decrease release of catecholamines but attenuate responses of elevated catecholamines following laryngoscopy
The present study is comparable with other similar studies that has obtained some powerful evidence indicating that the use of oral gabapentin, even hours before tracheal intubation can be successful for attenuation of the hemodynamic response to laryngoscopy
 demonstrated that intermediate dose of labetalol blunts HR response to laryngoscopy
and intubation in healthy patients but has minimal effect on BP.
Fourth, the need of adjuncts was less when using Shikani Optical Stylet than that when using Macintosh laryngoscope, but the authors did not differentiate the adjuncts used for laryngoscopy
Foreign body was detected on X-ray in 7(29.2%) participants and through fibre optic laryngoscopy
Binary logistic regression was used to assess the influence of each and combination of risk factors or airway parameters on the incidence of difficult laryngoscopy
and difficult intubation.
Key words: Endotracheal intubation; Direct laryngoscopy
; Airway management; Videolaryngoscopy
On the day after admission, laryngoscopy
revealed a marked hematoma with an immobile right vocal fold (figure, B).