A comparative study of the efficacy of intravenous magnesium sulphate and intravenous dexmedetomidine in attenuating haemodynamic response to laryngoscopy and endotracheal intubation

Both laryngoscopy and tracheal intubation elicit a sympathetic and parasympathetic response, which varies depending on the depth of anaesthesia, duration of laryngoscopy, and patient characteristics. Although different methods have been used to suppress the response, an ideal agent has yet to be discovered. This study compares and contrasts the effectiveness of intravenous dexmedetomidine and intravenous magnesium sulphate in reducing hemodynamic response during laryngoscopy and endotracheal intubation.: This 18-month prospective, randomised, double-blind, placebo-controlled comparative research was conducted in the Department of Anaesthesiology and Critical Care, Bokaro General Hospital, Bokaro Steel City, Jharkhand. One hundred twenty consenting study participants were randomly divided into three groups of forty. Before induction, Group A received IV normal saline as a placebo. Group B received 1 mcg/kg IV dexmedetomidine before induction, while Group C received 30 mg/kg IV 50% magnesium sulphate before induction.: Gender distribution was consistent and equal among 120 patients. Gender, age, weight, ASA, and type of surgery did not differ significantly across groups. The three groups had no statistically significant difference in baseline hemodynamic parameters. When compared to the Control Group (A), there were statistically significant changes in hemodynamic parameters in the Dexmedetomidine (B) and Magnesium sulphate (C) groups. There was no hypotension, bradycardia, nausea, vomiting, dry mouth, or arrhythmias.: Dexmedetomidine and magnesium sulphate efficiently reduced the hemodynamic stress response to laryngoscopy and intubation, although dexmedetomidine attenuated the sympathetic response more effectively.