A COMPARATIVE STUDY OF HAEMODYNAMIC STRESS RESPONSE TO LARYNGOSCOPYWITH THE McCOY, THE MACINTOSH AND THE MILLER LARYNGOSCOPE BLADES
Journal Title: Journal of Evidence Based Medicine and Healthcare - Year 2017, Vol 4, Issue 30
Abstract
BACKGROUND Laryngoscopy by rigid direct laryngoscope for the purpose of intubation causes haemodynamic stress response (increase in heart rate and mean arterial pressure). The reduction of the stimulation of the oropharynx by the design of laryngoscope blade has reduced the magnitude of the haemodynamic stress response. In this study, the haemodynamic stress response (increased heart rate and increased mean arterial pressure) before, during and after laryngoscopy with McCoy, Macintosh and Miller laryngoscope blades are compared. MATERIALS AND METHODS Sixty patients in the age group of 20 to 50 years of both sexes posted for elective surgeries under general anaesthesia were divided into three groups of 20 each as McCoy, Miller and Macintosh group and the haemodynamic stress response to laryngoscopy before, during and after laryngoscopy were compared. Statistical Analysis- The statistical data were analysed by using ANOVA and paired t-test and the p value of <0.05 was considered statistically significant. RESULTS The results of the study showed that the increase in the heart rate and mean arterial pressure were least with McCoy, most with Miller and in between with Macintosh. CONCLUSION The study concluded that the haemodynamic stress response to laryngoscopy is least with McCoy laryngoscope, most with Miller laryngoscope and is in between with Macintosh laryngoscope.
Authors and Affiliations
Venkatesan G, Renganathan T
Keywords
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- EP ID EP217913
- DOI 10.18410/jebmh/2017/349
- Views 85
- Downloads 0
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