ICU sedation, delirium & recovery

Impact of acute kidney injury on major adverse cardiovascular events in intensive care survivors

BJA OpenPublished Retrospective observational cohort study

Main finding · MACEResult — go to the resultHazard ratio 1.38 95% CI 1.12–1.70

Authors' conclusion

One in 10 ICU survivors experiences a major adverse cardiovascular event after discharge. Acute kidney injury whilst in ICU was associated with an increased risk of major adverse cardiovascular events and specifically myocardial injury.

Study context

Population
ICU survivors of an admission to one of two ICUs, July 2015–June 2018
Participants
3,994 ICU survivors
Exposure
AKI vs no AKI during ICU stay
Outcome
MACE after discharge:
  • Myocardial injury
  • Coronary artery intervention
  • Radiological evidence of stroke
Methodological detailstwo ICUs, routinely collected data
  • Two ICUs
  • Routinely collected data

Main finding

MACE

Hazard ratio

1.38

95% CI 1.12–1.70

P = 0.003

AKI vs No AKI
HR 1.38 (95% CI 1.12–1.70); P = 0.003

As reported in the abstract

MACE in all ICU survivors: 385 patients
9.6% (95% CI 8.8-10.6%)

Observational data: associations, not effects.

Further findings

OutcomeHR (95% CI)P value
Biochemical myocardial injury1.48 (1.16–1.89)P = 0.001

Coronary artery interventions and cerebrovascular events

No statistically significant association with AKI

Original publication

Impact of acute kidney injury on major adverse cardiovascular events in intensive care survivors. BJA Open. Published 3 December 2023. doi:10.1016/j.bjao.2023.100243

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