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Natl J Med Res. 2016; 6(3): 271-274

Comparison of Haemodynamic Response to Laryngoscopy With Macintosh and MCCOY Blades in Patients Undergoing General Anaesthesia

Gaurav Arora, Akhilesh Chhaya, Rama Upadhyaya.

Background: Non-pharmacological approaches for controlling laryngoscopy induced stress responses are less explored; resulting in under-diffusion of laryngoscopy blades with safe designs in the hospital system. The aim of this study was to evaluate comparative efficacy of McCoy blades and MacIntosh blades in reducing stress response to laryngoscopy. Materials and Methods: Total Sixty adult patients with American Society of Anaesthesiologists’s (ASA) grade I or II were included with random assignment to group A (MacIntosh, n=30) and group B (McCoy, n=30). Primary study endpoints were changes in mean arterial pressure and heart rate in peri-induction phase during laryngoscopy and secondary endpoint was occurrence of adverse event or any in both groups. For continuous variables presented in mean ± standard deviation (SD), student’s t-test and for categorical variables chi-square test was performed with p

Key words: Laryngoscopy, MacIntosh laryngoscope blade, McCoy laryngoscope blade

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