Neurosyphilis in the antibiotic era

Area of Science:

• Neurology
• Infectious Diseases
• Clinical Medicine

Background:

• Neurosyphilis, a tertiary stage of syphilis infection, affects the central nervous system.
• Understanding the clinical spectrum and diagnostic patterns of neurosyphilis is crucial for timely diagnosis and treatment.

Purpose of the Study:

• To analyze the clinical manifestations, serological findings, and pathological subtypes of neurosyphilis in a cohort diagnosed between 1970 and 1981.
• To compare the relative frequencies of different neurosyphilis subtypes with historical data from the prepenicillin era.

Main Methods:

• Retrospective analysis of 30 patients diagnosed with neurosyphilis.
• Review of clinical symptoms, serum Venereal Disease Research Laboratory (VDRL) test results, and cerebrospinal fluid (CSF) VDRL test results.
• Classification of neurosyphilis subtypes based on pathological findings.

Main Results:

• Of 30 patients, 43% presented with neurosyphilis-specific symptoms, 43% had unrelated symptoms, and 14% were asymptomatic.
• Serum VDRL was positive in 86% of patients, while CSF VDRL was positive in 53%.
• Meningovascular and vascular syphilis were more common than in the prepenicillin era; tabes dorsalis and general paresis frequencies remained unchanged.

Conclusions:

• Neurosyphilis presents with diverse clinical and asymptomatic forms.
• VDRL testing of serum and CSF remains essential for neurosyphilis diagnosis.
• Changes in the relative frequency of neurosyphilis subtypes suggest an evolving disease pattern.