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ORIGINAL ARTICLE
Year : 2020  |  Volume : 36  |  Issue : 1  |  Page : 37-42

Determination of dose and efficacy of atracurium for rapid sequence induction of anesthesia: A randomised prospective study


Pain Management Research Unit, Department of Anesthesiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand

Correspondence Address:
Dr. Pornpan Chalermkitpanit
1873 Department of Anesthesiology, 15th Bhumisiri Building, King Chulalongkorn Memorial Hospital, Rama IV Road, Pathumwan, Bangkok 10330
Thailand
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/joacp.JOACP_36_19

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Background and Aims: Succinylcholine and high dose rocuronium are neuromuscular blocking agents commonly used for rapid sequence induction of anesthesia. Their usage is limited or contraindicated in some circumstances. The aim of this study is to determine the dosage and efficacy of atracurium without priming for rapid sequence induction of anesthesia. Material and Methods: One hundred fifteen surgical patients under general anesthesia were randomised into three groups. All patients were given 2-3 mg/kg propofol and 1 μg/kg fentanyl intravenously for the induction of anesthesia followed by different doses of atracurium (0.6 mg/kg, 0.75 mg/kg or 1 mg/kg) without a priming dose. Tracheal intubation was performed within one minute after the administration of the study drugs. The intubating conditions, vocal cord movement and diaphragm movement were graded as the primary endpoints. Statistical analysis was done using one-way analysis of variance (ANOVA) and Post Hoc tests. Results: Atracurium doses of 1 mg/kg, 0.75 mg/kg, and 0.6 mg/kg provided 51.4%, 43.6% and 26.3% success rates of intubation without coughing or bucking, respectively (P = 0.03). The intubating conditions were graded as excellent or good in 86.5% of the 1 mg/kg atracurium group patients and in 84.6% of the 0.75 mg/kg group patients (P < 0.05). An atracurium dose of 1 mg/kg facilitated significant differences in vocal cord and diaphragm paralysis compared with the dose of 0.6 mg/kg (P = 0.03). Conclusion: The administration of a relatively high dose of atracurium without priming can be used as an alternative neuromuscular blocking agent for rapid sequence induction of anesthesia in some circumstances.


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