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A Prospective Study

Joseph R. Berger, MD

Arch Neurol. 1991;48(7):700-702.

Abstract
• The prevalence of neurosyphilis in human immunodeficiency virus type 1 (HIV-1)-seropositive (HIV+) persons was assessed during the course of a study of the neurological complications of HIV-1 infection. One hundred sixty-six asymptomatic HIV+ subjects, 63 neurologically symptomatic HIV + subjects, and six at-risk HIV-1—seronegative (HIV-) control subjects underwent cerebrospinal fluid (CSF) analysis on entry into this longitudinal study. Three (1.8%) of the asymptomatic HIV+ subjects had both a reactive CSF VDRL test and a reactive CSF fluorescent treponemal antibody-absorption (FTA-ABS) test. Two of these three subjects had a history of appropriately treated early syphilis, and all had a reactive serum rapid plasma reagin test. Of the 63 neurologically symptomatic HIV+ subjects, one patient with dementia had both a reactive CSF VDRL test and a fluorescent treponemal antibody-absorption test. Subjective improvement in cognitive skills followed high-dose, intravenous penicillin therapy. Another subject had a penicillin-responsive myelopathy accompanied by a reactive CSF fluorescent treponemal antibody-absorption test result, but a nonreactive CSF VDRL. Unsuspected neurosyphilis is relatively common in our population of asymptomatic HIV+ subjects and may be responsible for neurological disease in a significant minority of neurologically symptomatic HIV+ persons. Cerebrospinal fluid examination should be performed in all HIV+ persons with a history of syphilis or serological evidence of syphilis, regardless of prior treatment. Additionally, neurosyphilis should be considered in the differential diagnosis of neurological disease in any HIV+ person.

Author Affiliations
From the Departments of Neurology and Internal Medicine and the Comprehensive AIDS Center of the University of Miami School of Medicine, Miami, Fla.

Footnotes
Accepted for publication January 16, 1991.

Reprint requests to Department of Neurology, University of Miami School of Medicine, 1501 NW 9th Ave, Miami, FL 33136 (Dr Berger).

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