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Related Experiment Videos

[Microbiological study of urethritis in men].

L Otth1, M A Gutiérrez, M Wilson

  • 1Instituto de Microbiología Clínica, y de Especialidades, Facultad de Medicina, Universidad Austral de Chile, Valdivia.

Revista Medica De Chile
|May 1, 1990
PubMed
Summary

Neisseria gonorrhoeae was the most common cause of urethritis from 1985-1987, with increasing isolation rates. Ureaplasma urealyticum and Chlamydia trachomatis were also significant contributors to urethritis cases.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Urology

Background:

  • Urethritis is a common clinical diagnosis in patients presenting with urethral symptoms.
  • Understanding the causative agents of urethritis is crucial for effective treatment and public health strategies.

Purpose of the Study:

  • To determine the etiological agents of urethritis in a patient cohort.
  • To track the prevalence of Neisseria gonorrhoeae and other common pathogens over a defined period.
  • To assess the incidence of antibiotic resistance, specifically beta-lactamase production, in Neisseria gonorrhoeae isolates.

Main Methods:

  • Urethral samples were collected from 453 patients diagnosed with urethritis between 1985 and 1987.
  • Microbiological cultures were performed to isolate and identify bacterial pathogens.

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  • Specific diagnostic methods were used to detect Chlamydia trachomatis and Ureaplasma urealyticum.
  • Antimicrobial susceptibility testing, including the detection of beta-lactamase production, was conducted on Neisseria gonorrhoeae isolates.

    • Main Results:

    • Neisseria gonorrhoeae was identified in 55% of cases, with isolation rates increasing throughout the study period.
    • Ureaplasma urealyticum was the most frequently identified non-gonococcal agent, found alone or in combination with other organisms.
    • Chlamydia trachomatis was detected in 19% of 82 tested patients.
    • The proportion of beta-lactamase producing Neisseria gonorrhoeae strains showed variability, ranging from 7% in 1985 to 13% in 1987 and 3% in 1988.

    Conclusions:

    • Neisseria gonorrhoeae remains a primary cause of urethritis, necessitating ongoing surveillance for antibiotic resistance.
    • Ureaplasma urealyticum and Chlamydia trachomatis are significant co-pathogens in urethritis.
    • The fluctuating rates of beta-lactamase producing Neisseria gonorrhoeae highlight the need for continuous monitoring of antimicrobial resistance patterns.