Sepsis & infection

Gut colonization with multidrug resistant organisms in the intensive care unit: a systematic review and meta-analysis

Crit CarePublished Systematic review and meta-analysis of observational studies

Authors' conclusion

Acquisition of gut MDRO was common in the ICU and increases with days spent in ICU through 30 days of follow-up.

Study context

Population
Intensive care unit (ICU) patients with perianal or rectal swabs at ICU admission (within 48 h) and at ≥1 subsequent timepoint; studies 2010–2023
Participants
37,305 patients · 14 studies
Outcome
Incidence rate of gut acquisition of MDRO (multidrug resistant non-Pseudomonas Gram-negative bacteria, Pseudomonas spp., VRE) newly detected after ICU admission, for all patient-time at risk

Pooled result

As reported in the abstract

Gut acquisition of MDRO · during ICU hospitalization

Pooled incidence rate per 1000 patient-days

12.2

95% CI 8.1–18.6

Pooled incidence (range: 1-43%)

5%

Further pooled results

Median time to acquisition

Ranged from 4 to 26 days after ICU admission

NP-GN and Pseudomonas spp. (subgroup)

Results similar for NP-GN and Pseudomonas spp.; insufficient data to assess vancomycin-resistant Enterococcus (VRE)

Daily increase in gut multidrug-resistant organisms (MDRO) colonization (curve fitting, 6 studies) · through 30 days of ICU hospitalization

Quasi-linear increase per day, stable through 30 days (R2 = 0.50, p < 0.01)
1.41%

Original publication

Gut colonization with multidrug resistant organisms in the intensive care unit: a systematic review and meta-analysis. Crit Care. Published 28 June 2024. doi:10.1186/s13054-024-04999-9

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