Abstract
Purpose
Acute kidney injury (AKI) is associated with the activation of the renin–angiotensin system. Whether angiotensin-converting enzyme inhibitors (ACEi) or angiotensin-receptor blockers (ARB) improve outcome in patients recovering from AKI remains unexplored. The purpose was to investigate the association between prescription of ACEi/ARB at intensive care unit (ICU) discharge and 1-year outcome in patients recovering from AKI.
Methods
Association between ACEi/ARB and 1-year mortality rate was explored in 1551 patients discharged from 21 European ICUs in an observational cohort. One-year all-cause mortality after ICU discharge was the primary endpoint. AKI was defined using the kidney disease improvement global outcome definition. Propensity score matching was used to consider the probability to receive ACEi/ARB at ICU discharge and included chronic heart failure, ACEi/ARB on ICU admission, Charlson Comorbidity Index, age, diabetes mellitus, chronic kidney disease, estimated glomerular filtration rate and arterial blood pressure at ICU discharge vasopressors and renal replacement therapy.
Results
Overall, 1-year mortality was 28 and 15% in patients with AKI (n = 611, 39%) and without AKI (n = 940), respectively. In patients with AKI, unadjusted, adjusted and propensity-score matched 1-year mortality rates were lower in patients treated with ACEi/ARB at ICU discharge [HR of 0.55 (0.35–0.89), HR of 0.45 (0.27–0.75), and HR of 0.48 (0.27–0.85, p < 0.001), respectively]. These results were consistent across sensitivity analysis. No association was observed in patients without AKI.
Conclusions
In patients discharged alive from the ICU after experiencing AKI, ACEi/ARB prescription at discharge is associated with a decrease in 1-year mortality.
Trial registration
ClinicalTrials.gov NCT01367093. Registered on 6 June 2011.
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Acknowledgements
The authors are particularly grateful to CRAs and healthcare providers of all the investigating centers. We also thank the Centre de Recherche Clinique (CRC) of Lariboisière University Hospital for his support.
Funding
FROG-ICU was funded by the Programme Hospitalier de la Recherche Clinique (AON 10-216) and by a research grant from the Société Française d’Anesthésie—Réanimation.
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Study concept and design: Gayat, Legrand, Mebazaa; Acquisition of data: Gayat, Mebazaa, Vieillard-Baron, Cariou, Deye, Jaber, Chousterman, Lu, Laterre, Monnet, Leone, Guidet, Lefrant, Fournier, Legrand; Analysis and interpretation of data: Gayat, Legrand, Mebazaa; Drafting of the manuscript: Legrand, Gayat, Hollinger, Mebazaa; Critical revision of the manuscript for important intellectual content: all declared authors; Statistical analysis: Gayat; Obtained funding: Gayat, Mebazaa; Administrative, technical, or material support: Gayat, Mebazaa, Fournier; Study supervision: Gayat, Legrand, Mebazaa; All authors have read and approved the final manuscript.
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EG received research grants from Sphingotec, and consultancy fees from Magnisense and Roche Diagnostics. AM received speaker’s honoraria from Abbott, Novartis, Orion, Roche and Servier, and fees as a member of the advisory board and/or Steering Committee from Cardiorentis, Adrenomed, MyCartis, Neurotronik and Sphyngotec. ML received research grants from Sphingotec, consultancy fees from Astellas and Lecture fees from Gilead and Fresenius. The remaining authors declare that they have no competing interests.
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134_2018_5160_MOESM1_ESM.tiff
eFigure 1. Imbalance before (black square) and after (red bullet) propensity score matching for variables included in the propensity model with patients who developed AKI during ICU stay (TIFF 61 kb)
134_2018_5160_MOESM2_ESM.tiff
eFigure 2. Survival curves according to prescription of ACEi at ICU discharge in patients without AKI (Panel A) and Imbalance before (black square) and after (red bullet) propensity score matching for variables included in the propensity model with patients who didn’t developed AKI during ICU stay(Panel B) (TIFF 220 kb)
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Gayat, E., Hollinger, A., Cariou, A. et al. Impact of angiotensin-converting enzyme inhibitors or receptor blockers on post-ICU discharge outcome in patients with acute kidney injury. Intensive Care Med 44, 598–605 (2018). https://doi.org/10.1007/s00134-018-5160-6
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DOI: https://doi.org/10.1007/s00134-018-5160-6