Prevalence Estimates of Complicated Syphilis

Area of Science:

• Infectious Diseases
• Neurology
• Ophthalmology

Background:

• Syphilis is a sexually transmitted infection caused by *Treponema pallidum*.
• Neurosyphilis is a late-stage complication affecting the central nervous system.
• Early diagnosis and treatment are crucial to prevent severe neurological and ocular complications.

Purpose of the Study:

• To determine the prevalence of vision and hearing changes in suspected neurosyphilis cases.
• To identify objective confirmation markers for complicated neurosyphilis.

Main Methods:

• Retrospective review of 573 syphilis cases in King County, WA.
• Analysis of 68 cases with suspected neurosyphilis.
• Evaluation of symptoms including vision or hearing changes.
• Assessment for objective confirmation via cerebrospinal fluid analysis or ophthalmologic examination.

Main Results:

• 7.9% of suspected neurosyphilis cases exhibited vision or hearing changes.
• 3.5% of cases showed both symptoms and objective confirmation of complicated neurosyphilis.
• Abnormal cerebrospinal fluid or ophthalmologic findings were used for confirmation.

Conclusions:

• Vision and hearing changes are significant indicators in potential neurosyphilis cases.
• Objective confirmation is vital for diagnosing complicated neurosyphilis.
• These findings underscore the importance of screening for neurological and ocular involvement in syphilis patients.