Difficult-to-Treat Stenotrophomonas maltophilia Pneumonia: Unrecognized Factors and the Challenges of Interpretation

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The study by Mokrani et al. focuses on antibiotic regimens for difficult-to-treat Stenotrophomonas maltophilia pneumonia in ICU patients.
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Case ascertainment relied on microbiology database searches, omitting clinically diagnosed cases with negative respiratory cultures.
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The study's findings may favor patients with greater bacterial burden, potentially skewing the representation of the infection's natural history.
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Quantitative MIC data were limited, with susceptibility testing methods varying across centers, raising concerns about generalizability.
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The authors suggest focusing on microbiologically confirmed cases and standardizing susceptibility testing in future research.

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