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  • Title: Extrinsic factors that put patients at risk of acquiring central nervous system infections.
    Author: Robinson EN, Woods ML, McGee ZA.
    Journal: Am J Med; 1984 May 15; 76(5A):208-14. PubMed ID: 6372472.
    Abstract:
    Although many host defenses, including physical barriers, phagocytic cells, and humoral elements, normally protect the central nervous system from microbial pathogens, a variety of extrinsic factors may compromise these defenses and put patients at risk of acquiring central nervous system infection. These risk factors include: (1) communication of the cerebrospinal fluid space with integumentary surfaces; (2) communication of the cerebrospinal fluid space with other body spaces through shunts; (3) suppurative foci contiguous to the central nervous system; (4) hematogenous spread of infectious agents; (5) new acquisition of infectious agents with a propensity for causing central nervous system infection; and (6) administration of certain antimicrobial or immunosuppressive drugs. Recognition that these factors are present and therefore that the patient is at risk allows monitoring for and prompt response to signs and symptoms of central nervous system infection.
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