International journal of antimicrobial agents · 2021
Clinical outcomes of Stenotrophomonas maltophilia infection treated with trimethoprim/sulfamethoxazole, minocycline, or fluoroquinolone monotherapy.
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Junco Shauna Jacobson, Bowman Mary Catherine, Turner R Brigg
Аннотация
OBJECTIVES: The historical treatment of choice for Stenotrophomonas maltophilia infection is trimethoprim/sulfamethoxazole and this is primarily based on preclinical studies. The objective of this study was to examine the clinical outcomes of patients receiving monotherapy with different agents.
METHODS: This was a retrospective study of adult patients receiving monotherapy for S. maltophilia infection with trimethoprim/sulfamethoxazole (TMP/SMX), a fluoroquinolone, or minocycline from 2010 to 2016. The primary outcome was clinical failure, a composite of recurrence, alteration of therapy due to adverse reaction or concern for clinical failure, or 30-day in-hospital mortality. The secondary outcome was 30-day in-hospital mortality. To account for treatment selection bias, multivariate regression and propensity score weighting were conducted.
RESULTS: 284 patients were included (217 received TMP/SMX, 28 received a fluoroquinolone, and 39 received minocycline). The TMP/SMX and minocycline groups appeared to include similar patients whereas the fluoroquinolone group appeared to represent a slightly less severely ill population. Clinical failure was similar between groups (36%, 29%, and 31% in the TMP/SMX, fluoroquinolone, and minocycline groups, respectively, P=0.69) as was 30-day mortality (15%, 7%, and 5% in the TMP/SMX, fluoroquinolone, and minocycline groups, respectively, P=0.16). After controlling for confounding factors, receipt of minocycline (adjusted odds ratio [OR]=0.2 [0.1-0.7]) but not a fluoroquinolone (adjusted OR=0.3 [0.1 to 2.1]) was associated with lower mortality compared with TMP/SMX. This association persisted after propensity score weighting.
CONCLUSIONS: Outcomes were similar or better with alternatives to TMP/SMX monotherapy, which indicates this may not be the treatment of choice for infections caused by S. maltophilia.
METHODS: This was a retrospective study of adult patients receiving monotherapy for S. maltophilia infection with trimethoprim/sulfamethoxazole (TMP/SMX), a fluoroquinolone, or minocycline from 2010 to 2016. The primary outcome was clinical failure, a composite of recurrence, alteration of therapy due to adverse reaction or concern for clinical failure, or 30-day in-hospital mortality. The secondary outcome was 30-day in-hospital mortality. To account for treatment selection bias, multivariate regression and propensity score weighting were conducted.
RESULTS: 284 patients were included (217 received TMP/SMX, 28 received a fluoroquinolone, and 39 received minocycline). The TMP/SMX and minocycline groups appeared to include similar patients whereas the fluoroquinolone group appeared to represent a slightly less severely ill population. Clinical failure was similar between groups (36%, 29%, and 31% in the TMP/SMX, fluoroquinolone, and minocycline groups, respectively, P=0.69) as was 30-day mortality (15%, 7%, and 5% in the TMP/SMX, fluoroquinolone, and minocycline groups, respectively, P=0.16). After controlling for confounding factors, receipt of minocycline (adjusted odds ratio [OR]=0.2 [0.1-0.7]) but not a fluoroquinolone (adjusted OR=0.3 [0.1 to 2.1]) was associated with lower mortality compared with TMP/SMX. This association persisted after propensity score weighting.
CONCLUSIONS: Outcomes were similar or better with alternatives to TMP/SMX monotherapy, which indicates this may not be the treatment of choice for infections caused by S. maltophilia.