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Staphylococcus aureus bacteriuria

P J Demuth, D N Gerding, K Crossley

    Archives of Internal Medicine
    |January 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Staphylococcus aureus (S. aureus) in urine is infrequent but clinically significant. Predisposing factors include urinary tract procedures, and S. aureus bacteriuria warrants concern similar to more common urinary pathogens.

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    Area of Science:

    • Infectious Diseases
    • Urology
    • Microbiology

    Background:

    • Staphylococcus aureus is a common pathogen, but its role as a urinary tract isolate is less understood.
    • Bacteriuria, the presence of bacteria in urine, can range from asymptomatic to severe infections.

    Purpose of the Study:

    • To determine the incidence, clinical significance, and predisposing factors of Staphylococcus aureus bacteriuria.
    • To compare S. aureus urinary isolates across different hospital settings and patient demographics.

    Main Methods:

    • Retrospective review of 127 episodes of Staphylococcus aureus bacteriuria across two hospitals.
    • Analysis of patient demographics, clinical presentation, predisposing factors, and treatment outcomes.

    Main Results:

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    • Staphylococcus aureus accounted for approximately 1% of all positive urine cultures.
    • Predisposing factors included urinary tract abnormalities or manipulations in nearly two-thirds of patients, with 55% of cases being nosocomial, often linked to catheterization.
    • While most patients lacked urinary symptoms, pyuria was common; S. aureus bacteriuria was associated with a 5.5% secondary bacteremia rate in one hospital.

    Conclusions:

    • Staphylococcus aureus bacteriuria is an infrequent but clinically important condition.
    • Urinary tract procedures and abnormalities are significant predisposing factors.
    • Presence of S. aureus in urine warrants significant clinical concern, similar to more common urinary pathogens.