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Related Experiment Videos

Conditions for tracheal intubation using atracurium compared with pancuronium.

M M Twohig, S Ward, I M Corall

    British Journal of Anaesthesia
    |January 1, 1983
    PubMed
    Summary

    Comparing neuromuscular blocking agents for tracheal intubation, this study found that higher doses of atracurium and pancuronium provided similar, effective intubating conditions. Optimal conditions were achieved at 60-75 seconds post-injection.

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    Area of Science:

    • Anesthesiology
    • Pharmacology

    Background:

    • Neuromuscular blocking agents are crucial for facilitating endotracheal intubation.
    • Atracurium and pancuronium are commonly used non-depolarizing neuromuscular blockers.
    • Optimizing intubating conditions is essential for patient safety during anesthesia.

    Purpose of the Study:

    • To compare the efficacy of different doses of atracurium and pancuronium in achieving optimal intubating conditions.
    • To evaluate the onset and duration of action of these neuromuscular blocking agents at various time points.

    Main Methods:

    • A randomized study involving 96 patients undergoing intubation.
    • Comparison of atracurium (0.6 and 0.8 mg kg-1) and pancuronium (0.08 and 0.1 mg kg-1) at 30, 45, 60, and 75 seconds post-injection.
    • Assessment of intubating conditions based on drug administration and time interval.

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    Main Results:

    • Smooth intubation was not consistently achieved before 60 seconds with either agent.
    • Atracurium 0.6 mg kg-1 and pancuronium 0.08 mg kg-1 yielded comparable intubating conditions.
    • Higher doses (atracurium 0.8 mg kg-1 and pancuronium 0.1 mg kg-1) provided similar or slightly improved intubating conditions, particularly at later time points (45-75 seconds).

    Conclusions:

    • Both atracurium and pancuronium can facilitate tracheal intubation effectively.
    • Adequate neuromuscular blockade for intubation is typically achieved at 60 seconds or later.
    • Dose selection and timing are critical factors in optimizing intubating conditions with these agents.