Objectives International guidelines recommend Mycoplasma genitalium testing, preferably using an assay to detect macrolide resistance-associated mutations, for men presenting with non-gonococcal urethritis, but there is no specific guidance on such testing for men with gonococcal urethritis.
Methods This study aimed to estimate the proportion of men with gonococcal urethritis who have coinfection with M. genitalium through a retrospective analysis of cases of symptomatic urethral gonorrhoea at Western Sydney Sexual Health Centre in 2017 and 2018.
Results Fourteen of 184 (7.6%, 95% CI 3.7 to 11.5) men with gonococcal urethritis had M. genitalium detected in the urine at the time of presentation. No demographic or behavioural factors predicted M. genitalium coinfection. Coinfection with urethral Chlamydia trachomatis was detected in 29 of 184 (15.8%, 95% CI 10.5 to 21.1). All five men with macrolide-resistant M. genitalium detected returned for treatment with moxifloxacin at a median of 8 days (range 5–16 days) after presentation and treatment of gonorrhoea; three of five were documented to remain symptomatic at this visit.
Conclusion Although M. genitalium coinfection is less common than chlamydia among men with symptomatic gonococcal urethritis, M. genitalium testing, using an assay to detect macrolide resistance, will potentially reduce symptom duration particularly for men with macrolide-resistant infections, but may not be justifiable on cost-benefit analysis.
- Neisseria gonorrhoeae
- epidemiology (clinical)
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