Atracurium for Rapid Sequence Induction; A dose determining Randomized Control Trial at a Tertiary Care Hospital.

Introduction: Expert airway management is one of the essential anesthetic skills. Rapid Sequence induction is a technique of providing rapid securement of airway with endotracheal tube in patients who are at risk of aspiration. Objective: To find out the efficacy of 3-4 ED95 dose of Atracurium in providing optimal intubating conditions for Rapid Sequence Induction. Methodology: Single-blind randomized control trial was carried out Department of Anesthesia and Critical Care Medicine, Pakistan Institute of Medical Sciences (PIMS), Islamabad. 118 patients were included and divided into two groups by help of computer-generated random numbers. All the patients were pre-medicated with 8 mg of IV Dexamethasone. Group A patients received 1 mg/kg while group B patients received 0.75 mg/kg of Atracurium. Intubating conditions were assessed on the basis of number of coughing episodes along with degree of vocal cord movement or paralysis. Results: Patients who received 0.75 mg/kg of Atracurium had statistically significant better intubating conditions as compared to those receiving 1 mg/kg of Atracurium (p value < 0.05). Coughing episodes were more common among patients receiving higher dose of Atracurium while degree of vocal cord paralysis was similar in both groups. Furthermore 75% of histamine related adverse effects such as erythema and bronchospasm were observed in higher dose group. The difference was statistically significant with a p value of <0.05. Conclusion: Atracurium at a dose of 0.75 mg/kg along with pre-medication with 8 mg of IV Dexamethasone provided better and safer intubating conditions for rapid sequence induction.