Evaluation of Clinical, Gram Stain, and Microbiological Cure Outcomes in Men Receiving Azithromycin for Acute Nongonococcal Urethritis: Discordant Cures Are Associated With Mycoplasma genitalium Infection.
Evaluation of Clinical, Gram Stain, and Microbiological Cure Outcomes in Men Receiving Azithromycin for Acute Nongonococcal Urethritis: Discordant Cures Are Associated With Mycoplasma genitalium Infection.
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DOI:
10.1097/olq.0000000000001509
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发表时间:
2022-01-01
影响因子:
3.1
通讯作者:
Jordan SJ
中科院分区:
文献类型:
--
作者:
Toh E;Gao X;Williams JA;Batteiger TA;Coss LA;LaPradd M;Ren J;Geisler WM;Xing Y;Dong Q;Nelson DE;Jordan SJ
In men with nongonococcal urethritis (NGU), clinicians and patients rely on clinical cure to guide the need for additional testing/treatment and when to resume sex, respectively; however, discordant clinical and microbiological cure outcomes do occur. How accurately clinical cure reflects microbiological cure in specific sexually transmitted infections (STI) is unclear. Men with NGU were tested for Neisseria gonorrhoeae, Chlamydia trachomatis (CT), Mycoplasma genitalium (MG), Trichomonas vaginalis, urethrotropic Neisseria meningitidis ST11 clade strains, and Ureaplasma urealyticum (UU). Men received azithromycin 1 g and returned for a 1-month test-of-cure visit. In MG infections, we evaluated for the presence of macrolide resistance-mediating mutations (MRM) and investigated alternate hypotheses for microbiological treatment failure using in situ shotgun metagenomic sequencing, phylogenetic analysis, multiple locus typing analyses, and quantitative PCR. Of 280 men with NGU, 121 were included in this analysis. In the monoinfection group, 52 had CT, 16 had MG, 7 had UU, 10 had mixed infection, and 36 men had idiopathic NGU. Clinical cure rates were 85% for CT, 100% for UU, 50% for MG, and 67% for idiopathic NGU. Clinical cure accurately predicted microbiological cure for all STI, except MG. Discordant results were significantly associated with MG-NGU and predominantly reflected microbiological failure in men with clinical cure. MG MRM, but not MG load or strain, were strongly associated with microbiological failure. In azithromycin-treated NGU, clinical cure predicts microbiological cure for all STI, except MG. NGU management should include MG testing and confirmation of microbiological cure in azithromycin-treated MG-NGU when MRM testing is unavailable. Resolution of nongonococcal urethritis signs and symptoms does not always correlate with microbiological cure; discordant cures occur in one third of men. Clinical cure accurately correlates with Gram stain and microbiological cure for NGU bacterial pathogens, except Mycoplasma genitalium.