Sepsis & infection

Identification of a sub-group of critically ill patients with high risk of intensive care unit-acquired infections and poor clinical course using a transcriptomic score

Crit CarePublished Prognostic study with training and validation cohorts

Authors' conclusion

The transcriptomic score provides a useful and reliable companion diagnostic tool to further develop immune modulating drugs in sepsis in the context of personalized medicine.

Study context

Population
Critically ill patients of various etiologies still in intensive care unit (ICU) at day 5–7 (training); septic patients (validation)training cohort
Participants
176 patients
Comparison
Transcriptomic score (TScore) high-risk vs low-risk group
Outcome
ICU-acquired infections (ICU-AI) after day 5-7
Methodological detailsprospective training cohort (REALISM study), retrospective validation cohort, prototype multiplex PCR
  • Prospective training cohort (REALISM study)
  • Retrospective validation cohort
  • Prototype multiplex PCR

Performance

As reported in the abstract

ICU-AI, training cohort
High-risk group share of patients
49%

Further findings

ICU LOS, training cohort

P < 0.001

ICU mortality, training cohort

ICU-AI, validation cohort (257 septic patients)

P = 0.06

ICU-acquired infections (ICU-AI), validation cohort (257 septic patients) — High-risk patients identified in validation cohort
62%
  • ICU-AI, validation cohort (257 septic patients): 160 = high-risk patients (n), not ICU-AI events

Immune suppression features, training cohort

High-risk patients had low monocytic HLA-DR, higher immature neutrophil rates and higher IL10 concentrations

ICU-AI, validation cohort (257 septic patients)

Significantly higher mortality and longer ICU LOS in high-risk group

Original publication

Identification of a sub-group of critically ill patients with high risk of intensive care unit-acquired infections and poor clinical course using a transcriptomic score. Crit Care. Published 21 April 2023. doi:10.1186/s13054-023-04436-3

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