Comparison of Glottis View and Hemodynamic Response by using Macintosh and MacCoy Laryngoscopes for Endotracheal Intubation in General Anaesthesia for Elective Surgery
Journal Title: International Journal of Contemporary Medical Research - Year 2016, Vol 3, Issue 8
Abstract
Introduction: The aim of laryngoscopy is to obtain good visualization of the vocal cords to facilitate smooth endotracheal intubation. To reduce hemodynamic response to Intubation, laryngoscope blades of different shapes have been designed and studied. We tried to evaluate efficacy of MacCoy laryngoscope blade (straight) versus conventional Mcintosh (curved) blade in providing good glottic view and reducing hemodynamic response during endotracheal intubation. Material and methods: 200 American Society of Anaesthesia grade I and II patients requiring general anaesthesia were randomly divided in two groups; Group I (macintosh blade) and group II (MacCoy blade). Laryngoscopy was done by the attending anaesthesiologist by either of the blade to intubate the trachea. The Cormac-lehane grade was obtained from anaesthesia charts maintained by anaesthesiologist at the end of the procedure. Haemodynamic parameters were also recorded at periodic intervals during the procedure. Results: When Cormack-lehane(C & L) grading was compared between two groups we found that in group I; Grade I was 36%, Grade II was 38% and Grade III was 13%. In group 2, 82% patients had C and L grading I, 18% C & L grade II and zero C&L grade III. Rise in mean arterial blood pressure following intubation was more in Macintosh group as compared to the MacCoy group which was found to be statistically significant. Conclusion: MacCoy blade provides better visualization of larynx and intubating conditions with minimal Hemodynamic response to laryngoscopy and intubation as compared to Macintosh blade.
Authors and Affiliations
Lipika Baliarsing, Mangesh Gore, Prashant Akulwar
Keywords
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