Organ support & nutrition

Trends in renal replacement therapy use in intensive care unit: insights from a French multicenter cohort

Intensive Care MedPublished Retrospective cohort study

Authors' conclusion

Among critically ill patients with AKI, RRT use decreased in the past decade.

Study context

Population
Intensive care unit (ICU) patients with acute kidney injury (AKI) requiring invasive mechanical ventilation and/or catecholamine infusion, CUB-Réa database, 2008–2019
Participants
45,242 eligible ICU stays
Exposure
Renal replacement therapy (RRT) use across periods 2016-2019 and 2012-2015 vs 2008-2011
Outcome
Temporal trend in RRT utilization
Methodological detailsmulticentre, interrupted time series, multivariable logistic regression
  • Multicentre
  • Interrupted time series
  • Multivariable logistic regression

Main finding

As reported in the abstract

RRT use
Adjusted
Each group vs 2008-2011Odds ratio (95% CI)
2012-2015
0.91(0.87–0.96)
2016-2019
0.80(0.76–0.84)
Trend across periods
P < 0.0001
Overall RRT use
16,999 (37.6%)

Observational data: associations, not effects.

Secondary outcomes

Monthly trend after July 2016 breakpoint (AKIKI publication), adjusted interrupted time series (ITS)

RR per year (95% CI)
Post-intervention0.97 (0.94–0.99)
  • Monthly trend after July 2016 breakpoint (AKIKI publication), adjusted ITS: only post-intervention monthly trend statistically significant

Annual crude RRT rate per 1000 ICU stays

Baseline
441
2019
339
Relative reduction
20.8%

RRT modality

Intermittent RRT declined, continuous modestly increased

Original publication

Trends in renal replacement therapy use in intensive care unit: insights from a French multicenter cohort. Intensive Care Med. Published 25 November 2025. doi:10.1007/s00134-025-08213-4

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