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Year : 2014  |  Volume : 58  |  Issue : 3  |  Page : 303-308

Effects of pretreatment with different neuromuscular blocking agents on facilitation of intubation with rocuronium: A prospective randomized comparative study

Department of Anaesthesiology, Regional Institute of Medical Sciences, Imphal, Manipur, India

Correspondence Address:
Dr. D S Shashank
Shashipriya Sadhana, No. 175/2, 2nd Cross, Bhovipalya, Mahalakshmipuram, Bengaluru - 560 086, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0019-5049.135043

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Background and Aims: Priming principle refers to administration of a small dose of non-depolarising blocker, which when followed by a large intubating dose produces a relatively rapid and profound blockade to ensure suitable conditions for endotracheal intubation. We aimed to compare the effects of rocuronium, vecuronium, and atracurium as "pretreatment" drugs on intubating conditions with rocuronium facilitated endotracheal intubation. Methods: This double-blinded, randomised controlled prospective study was carried out at a tertiary health care hospital on patients undergoing surgical procedures under general anaesthesia. They were randomly allocated into three groups (n = 35) by computer generated randomisation chart to receive either rocuronium (0.06 mg/kg body weight) (Group A); vecuronium (0.01 mg/kg body weight) (Group B) or, atracurium (0.05 mg/kg body weight) (Group C), followed by intubating dose (0.6 mg/kg body weight) of rocuronium. The haemodynamic parameters and intubating conditions were studied and statistically analysed by ANOVA test and Student's t-test as applicable using statistical package for the social sciences 16.0 for windows (SPSS Inc., Chicago, IL, USA). Results: Excellent intubating conditions were noted in maximum number of patients in Group C (97.41%). No significant differences were observed in the systolic blood pressure in all the three groups at all-time intervals. The mean arterial pressure rose significantly from baseline value to maximum, at '0' min in all the groups; however, no significant difference was observed amongst the groups (P > 0.05). Conclusion: Pretreatment with rocuronium bromide can facilitate endotracheal intubation in 60 s irrespective of non-depolarising muscle relaxants used for priming; however, it cannot attenuate haemodynamic changes associated with laryngoscopy and intubation.

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