THE BUTYRIC ACID TEST FOR SYPHILIS IN THE DIAGNOSIS OF METASYPHILITIC AND OTHER NERVOUS DISORDERS

Area of Science:

• Neurology
• Clinical Chemistry
• Infectious Diseases

Background:

• Cerebrospinal fluid (CSF) analysis is crucial for diagnosing central nervous system (CNS) disorders.
• Syphilis, particularly neurosyphilis, presents diagnostic challenges.
• The Wassermann test is a standard for syphilis detection, but its sensitivity can vary.

Purpose of the Study:

• To evaluate the diagnostic utility of the butyric acid reaction in cerebrospinal fluid.
• To compare the butyric acid reaction with cytodiagnosis and the Wassermann test in various syphilitic and non-syphilitic CNS conditions.
• To determine the effectiveness of the butyric acid reaction in identifying syphilitic CNS lesions.

Main Methods:

• The study analyzed cerebrospinal fluid from patients with various stages of syphilis, hereditary syphilis, general paralysis, tabes dorsalis, and other neurological conditions.
• The butyric acid reaction, cytodiagnosis, and Wassermann test were performed on all CSF samples.
• Results were compared across different diagnostic groups.

Main Results:

• The butyric acid reaction showed high sensitivity in detecting pathological CSF, particularly in neurosyphilis (90-100%).
• It was positive in cases of hereditary syphilis (90%), cerebral/spinal syphilis (100%), general paralysis (90%), and tabes dorsalis (100%).
• The reaction was negative in non-syphilitic psychoses (2.8%) and other inflammatory meningeal diseases (flocculent precipitate but no Wassermann).

Conclusions:

• The butyric acid reaction is a valuable tool for differentiating normal from pathological CSF.
• It serves as a reliable indicator for detecting syphilitic disease and aids in diagnosing CNS lesions.
• The butyric acid reaction complements and extends the findings of the Wassermann test in clinical practice.