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Acoustic reflex and general anaesthesia.

Z Farkas

    Scandinavian Audiology. Supplementum
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Acoustic reflex testing in infants and young children can be performed under general anesthesia when cooperation is difficult. Certain anesthetics allow for reliable reflex elicitation, aiding in hearing loss assessment.

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    Area of Science:

    • Audiology
    • Anesthesiology
    • Pediatric Medicine

    Background:

    • Infants and young children often struggle to cooperate with impedance measurements.
    • General anesthesia presents a potential solution for conducting acoustic reflex examinations in challenging pediatric cases.

    Purpose of the Study:

    • To evaluate the feasibility and effectiveness of acoustic reflex testing under general anesthesia in pediatric patients.
    • To determine the impact of various anesthetic agents on stapedius reflex measurements.
    • To explore the clinical applications of this method in diagnosing hearing impairments and related conditions in children.

    Main Methods:

    • Acoustic reflex examinations were conducted on pediatric patients under general anesthesia.
    • The effects of different anesthetic agents (Tiobutabarbital, Propanidid, Diazepam, Ketamin-hydrochlorid, Alphaxalone-alphadolone acetate) on reflex response were investigated.

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  • Stapedius reflex threshold and amplitude were measured and analyzed.

    • Main Results:

    • No reflex response was observed with Tiobutabarbital, Propanidid, and Diazepam.
    • Acoustic reflexes could be elicited under Ketamin-hydrochlorid and Alphaxalone-alphadolone acetate narcosis.
    • The reflex threshold remained stable, while the amplitude of muscle contraction slightly increased with effective anesthetics.

    Conclusions:

    • General anesthesia is a viable option for acoustic reflex testing in non-cooperative pediatric populations.
    • Specific anesthetic agents are suitable for this procedure, preserving reflex integrity.
    • This technique aids in assessing hearing loss in children with cleft palate, excluding neuromuscular disorders, and evaluating hearing in speech-delayed children.