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Fever in the first eight weeks of life

K B Roberts, M S Borzy

    The Johns Hopkins Medical Journal
    |July 1, 1977
    PubMed

    Insights

    Clinical judgment is unreliable for identifying bacteremia in febrile infants younger than eight weeks. Aggressive management is recommended for these young patients to ensure serious infections are not missed.

    Area of Science:

    • Pediatrics
    • Infectious Diseases
    • Neonatal Care

    Background:

    • Febrile infants under eight weeks pose a diagnostic challenge.
    • Distinguishing serious infections like bacteremia from benign causes of fever is critical.

    Purpose of the Study:

    • To evaluate the reliability of clinical judgment and laboratory markers in identifying bacteremia in febrile infants.
    • To determine the optimal management strategy for febrile infants in the first eight weeks of life.

    Main Methods:

    • Sixty-one febrile infants aged 0-8 weeks were assessed.
    • Clinical parameters including fever, white blood cell count, and polymorphonuclear leukocytes were analyzed.
    • Physician's overall clinical assessment was compared to laboratory-confirmed bacteremia.

    Main Results:

    • No significant difference was found in fever height, white blood cell count, or leukocyte differentials between bacteremic and non-bacteremic infants.
    • Clinical judgment correctly identified 8 of 9 infants with bacteremia, but missed one case of group B streptococcal bacteremia.
    • The presence of a focus of infection (excluding meningitis) did not reliably differentiate bacteremic infants.

    Conclusions:

    • Clinical judgment alone is insufficient for accurately diagnosing bacteremia in febrile infants under eight weeks.
    • An aggressive diagnostic and management approach is warranted for febrile infants in this age group to prevent missed infections.

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