Abstract
Background: Laryngoscopy and endotracheal intubation is an integral part of general anesthesia for cardiac surgery. Direct laryngoscopy and passage of endotracheal tube through the larynx is a noxious stimulus, which can provoke untoward response in the cardiovascular, respiratory and other physiological systems. Significant tachycardia and hypertension can occur with tracheal intubation under light anesthesia. In this study our aim was to evaluate hemodynamic changes during intubation by using Macintosh and McGrath video laryngoscope in patients undergoing cardiac surgeries.
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