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Related Experiment Videos

[Acidocillin concentration in middle ear exudate].

S Virtanen, E A Lahikainen, T T Salmi

    Antibiotiki
    |April 1, 1976
    PubMed
    Summary
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    Acidocillin effectively penetrates middle ear fluid in otitis media patients. This antibiotic remains in ear exudates longer than in serum, indicating sustained local drug presence.

    Area of Science:

    • Pharmacokinetics
    • Otolaryngology
    • Infectious Diseases

    Context:

    • Acute exudative otitis media is a common condition.
    • Understanding drug penetration into middle ear effusions is crucial for effective treatment.
    • Oral antibiotics must achieve therapeutic concentrations in middle ear fluid.

    Purpose:

    • To determine Acidocillin levels in middle ear exudates and serum after oral administration.
    • To assess the diffusion and persistence of Acidocillin in middle ear fluid.
    • To compare the pharmacokinetic profile of Acidocillin in serum versus middle ear exudates.

    Summary:

    • Acidocillin was administered orally to patients with acute exudative otitis media.
    • Middle ear exudate levels reached 0-1.7 gamma/ml within 1 hour, while serum levels ranged from 4-25 gamma/ml.

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  • Acidocillin persisted in ear exudates for at least 12 hours (0.2-1.3 gamma/ml), with undetectable levels in serum at that time.

    • Impact:

    • Demonstrates favorable penetration and sustained presence of Acidocillin in middle ear effusions.
    • Suggests Acidocillin's potential efficacy for treating middle ear infections.
    • Provides pharmacokinetic data relevant to optimizing dosing regimens for otitis media.