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  • Title: Double-blind comparison of two doses of rocuronium and succinylcholine for rapid-sequence intubation.
    Author: Weiss JH, Gratz I, Goldberg ME, Afshar M, Insinga F, Larijani G.
    Journal: J Clin Anesth; 1997 Aug; 9(5):379-82. PubMed ID: 9257203.
    Abstract:
    STUDY OBJECTIVE: To compare the pharmacodynamics of two commonly recommended doses of rocuronium bromide (0.7 mg/kg and 0.9 mg/kg) and succinylcholine (1.5 mg/kg) when used for rapid-sequence intubation. DESIGN: Prospective, double-blind, randomized study. SETTING: Operating rooms at a university hospital. PATIENTS: 45 ASA physical status I and II adult patients scheduled for elective surgeries under general anesthesia. INTERVENTIONS: Nonpremedicated patients were anesthetized with fentanyl 2 mcg/kg followed by thiopental sodium 4 to 5 mg/kg and muscle relaxant using rapid-sequence technique. Group 1 (n = 15) received rocuronium bromide 0.7 mg/kg. Group 2 (n = 16) received rocuronium bromide 0.9 mg/kg, and Group 3 (n = 14) received succinylcholine 1.5 mg/kg. Intubation was performed 60 seconds after the administration of muscle relaxant. MEASUREMENTS AND MAIN RESULTS: The case of intubation was scored using a scale of 1 to 4. Blood pressure and heart rate were measured beginning one minute before induction of anesthesia up to 5 minutes after intubation. Intubation scores were similar in groups 2 and 3 and were noted as good or excellent in all patients. Group 1 displayed a significantly lower intubation score than the other two groups; 60% were rated as poor. No significant differences in hemodynamic data were seen among the three groups. CONCLUSIONS: Rocuronium bromide at a dose of 0.9 mg/kg provides intubating conditions similar to succinylcholine 1.5 mg/kg at 1 minute. Intubating conditions at 1 minute following a 0.7 mg/kg dose of rocuronium are not as good as those following a 0.9 mg/kg dose of rocuronium or a 1.5 mg/kg dose of succinylcholine.
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