Incidence of acute kidney injury and attributive mortality in acute respiratory distress syndrome randomized trials

Intensive Care MedPublished Individual patient-data analysis of randomised controlled trials

Authors' conclusion

The incidence of AKI appears to be stable over time in patients with ARDS enrolled in randomized trials. The development of AKI remains a significant contributing factor to mortality.

Study context

Population
Patients with acute respiratory distress syndrome (ARDS) enrolled in 10 multicentre RCTs over 20 years
Participants
5,148 patients · 10 RCTs
Comparison
Acute kidney injury (AKI) vs no AKI
Outcome
AKI rate and mortality attributable to AKI
Methodological detailsmulticentre, Super Learner ensemble, time-dependent analysis, inverse probability of treatment weighting
  • Multicentre
  • Super Learner ensemble
  • Time-dependent analysis
  • Inverse probability of treatment weighting

Pooled result

As reported in the abstract

AKI incidence and attributable mortality

Overall incidence of AKI (n = 2251)

43.7%

Adjusted risk of AKI, ARMA

38.8%

95% CI 35.7 to 41.9%

Adjusted risk of AKI, ROSE

55.8%

95% CI 51.9 to 59.6%

90-day excess mortality attributable to AKI

15.4%

95% CI 12.8 to 17.9%

Further pooled results

Rapid recovery from AKI

Recovered rapidly from AKI
37.1%
Significantly lower recovery rate in recent trials
P < 0.001

90-day excess mortality attributable to AKI by trial

ARMA
25.4% (95% CI 18.7 to 32%)
FACTT
11.8% (95% CI 5.5 to 18%)
Then remained rather stable over time

90-day overall excess mortality attributable to acute kidney disease

Excess mortality
28.4% (95% CI 25.3 to 31.5%)

Original publication

Incidence of acute kidney injury and attributive mortality in acute respiratory distress syndrome randomized trials. Intensive Care Med. Published 12 June 2024. doi:10.1007/s00134-024-07485-6

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