Postgonococcal urethritis. Relationship to penicillin sensitivity of the gonococcus

Area of Science:

• Urology
• Infectious Diseases
• Microbiology

Background:

• Postgonococcal urethritis (PGU) is a common complication following treatment for urethral gonorrhea.
• Understanding the etiological factors of PGU is crucial for effective treatment and prevention strategies.
• The role of penicillin resistance in Neisseria gonorrhoeae in the development of PGU requires further investigation.

Purpose of the Study:

• To investigate the relationship between penicillin sensitivity of gonococcal isolates and the development of postgonococcal urethritis (PGU).
• To explore potential risk factors associated with PGU, including a history of non-specific urethritis.

Main Methods:

• A cohort of 344 men diagnosed with urethral gonorrhea was studied.
• Patients were treated with intramuscular procaine penicillin.
• Penicillin sensitivity of gonococcal isolates was determined, and patients were monitored for PGU development.
• A history of non-specific urethritis was recorded and compared between patients with and without PGU.

Main Results:

• PGU occurred in 21.3% of men treated for gonorrhea.
• All gonococcal isolates from patients who developed PGU were fully sensitive to penicillin.
• Conversely, a higher proportion (10.2%) of cases not followed by PGU showed relative penicillin resistance.
• A history of non-specific urethritis was significantly more prevalent in men who developed PGU compared to those who recovered fully (P < 0.01).

Conclusions:

• The persistence of penicillin-sensitive gonococcal strains, not resistant strains or likely gonococcal L-forms, is associated with PGU.
• A history of non-specific urethritis appears to be a significant risk factor for developing PGU.
• These findings suggest that PGU may not be solely caused by treatment failure due to resistant gonorrhea.