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Related Experiment Videos

Priming with atracurium.

M Sosis, G E Larijani, A T Marr

    Anesthesia and Analgesia
    |April 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Priming with atracurium, a neuromuscular blocker, did not significantly improve intubating conditions or muscle relaxation compared to saline. However, priming did show a trend towards better head lift and negative inspiratory pressure.

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    Area of Science:

    • Anesthesiology
    • Pharmacology

    Background:

    • Neuromuscular blocking agents are crucial in anesthesia.
    • Atracurium is a commonly used non-depolarizing neuromuscular blocker.
    • Priming with a non-depolarizing neuromuscular blocker aims to improve intubating conditions and reduce side effects.

    Purpose of the Study:

    • To evaluate the efficacy of priming with atracurium for improving intubating conditions and neuromuscular relaxation.
    • To assess the impact of atracurium priming on maximum negative inspiratory pressure (MIP) and head lift.

    Main Methods:

    • 39 patients were divided into two groups.
    • Group 1 received saline as a priming agent, while Group 2 received 0.06 mg/kg atracurium.
    • Both groups received glycopyrrolate and fentanyl, followed by thiopental for anesthesia.

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  • Neuromuscular blockade was monitored using a twitch monitor, and intubating conditions were assessed.

    • Main Results:

    • The T4/T1 ratio at 90 seconds was significantly lower in the atracurium-primed group (0.51) compared to the saline group (0.73) (P < 0.001).
    • No significant differences were observed in intubating conditions, bucking on the endotracheal tube, or time to maximum twitch depression between the groups.
    • A trend towards improved head lift and MIP was noted in the atracurium-primed group, though not statistically significant.

    Conclusions:

    • Priming with atracurium did not significantly improve intubating conditions or reduce the incidence of bucking.
    • Atracurium priming did lead to a statistically significant difference in neuromuscular blockade depth (T4/T1 ratio).
    • Further research may be needed to explore optimal priming doses and patient populations for improved outcomes.