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Infections in burned patients.

C G Mayhall, R E Polk, B W Haynes

    Infection Control : IC
    |November 1, 1983
    PubMed
    Summary

    Understanding burn wound infection epidemiology is key. Antibiotics like gentamicin and tobramycin reach therapeutic levels, but resistant bacteria can quickly repopulate the wound, leading to superinfections and treatment failure.

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    Area of Science:

    • Infectious Diseases
    • Wound Healing
    • Pharmacology

    Background:

    • Burn wound infections pose significant challenges in patient care.
    • Effective prevention and treatment strategies rely on understanding infection epidemiology.
    • Previous assumptions suggested poor antibiotic penetration into avascular burn tissue.

    Purpose of the Study:

    • To investigate the pharmacokinetic properties of gentamicin and tobramycin in burn wound tissue.
    • To evaluate the impact of antibiotic therapy on microbial populations in burn wounds.
    • To determine the reasons for treatment failure in burn wound infections.

    Main Methods:

    • Pharmacokinetic analysis of gentamicin and tobramycin concentrations in burn wound tissue.
    • Microbiological surveillance of burn wound flora during antibiotic therapy.
    • Comparison of susceptible and resistant microorganism dynamics.

    Main Results:

    • Gentamicin and tobramycin achieved therapeutic concentrations within burn wound tissue.
    • Susceptible microorganisms were eradicated, while resistant strains persisted.
    • Resistant microorganisms repopulated the wound within four days of initiating therapy.

    Conclusions:

    • Antibiotic penetration into avascular burn wounds is adequate for achieving therapeutic levels.
    • Treatment failures are primarily attributed to the rapid development of superinfections by resistant microorganisms, not poor drug penetration.
    • Understanding microbial dynamics is crucial for successful burn wound infection management.

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