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Case report: anaesthesia in myotonic dystrophy

J Muller, P Suppan

    Anaesthesia and Intensive Care
    |February 1, 1977
    PubMed
    Summary

    Althesin infusion provided excellent muscle relaxation in a myotonic dystrophy patient, without altering EMG. Cardiovascular stability was observed, though increased myocardial susceptibility to hypokalemia occurred post-operatively.

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    Area of Science:

    • Anesthesiology
    • Neuromuscular Disorders
    • Pharmacology

    Background:

    • Myotonic dystrophy presents challenges in anesthesia due to potential for muscle spasms.
    • Neuromuscular blocking agents are crucial for surgical procedures in these patients.

    Observation:

    • Pancuronium combined with a continuous infusion of Althesin was administered to a patient with myotonic dystrophy.
    • The anesthetic regimen aimed to achieve profound muscle relaxation.
    • Cardiovascular parameters and electromyography (EMG) were monitored throughout the procedure.

    Findings:

    • Excellent muscle relaxation was achieved, indicated by the absence of percussion or surgically induced myotonia.
    • Electromyography (EMG) showed no modification, suggesting a potential intracellular site of action for Althesin.
    • Remarkable cardiovascular stability was maintained during the perioperative period.

    Implications:

    • The findings suggest Althesin may act intracellularly, offering a novel approach to muscle relaxation in myotonic dystrophy.
    • Postoperative monitoring revealed an increased myocardial susceptibility to hypokalemia, highlighting a potential complication.
    • Further research is warranted to explore Althesin's specific mechanism and optimize its use in patients with neuromuscular disorders.

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