Skip to Main content Skip to Navigation
Journal articles

Incidence and Outcome of Sub-clinical Acute Kidney Injury Using penKid in Critically Ill Patients

François Dépret 1 Alexa Hollinger Alain Cariou 2 Nicolas Deye 3 Antoine Vieillard-Baron 4 Marie-Céline Fournier 5 Samir Jaber 6, 7 Charles Damoisel 8 Qin Lu 9 Xavier Monnet 10 Isabelle Rennuit 11 Michaël Darmon 12 Marc Leone 13, 14 Bertrand Guidet 15 Romain Sonneville 16 Philippe Montravers 17 Sébastien Pili-Floury 18 Jean-Yves Lefrant 19 Jacques Duranteau 20 Pierre-François Laterre 21 Nicolas Bréchot 22 Haikel Oueslati 23 Bernard Cholley 24 Joachim Struck Oliver Hartmann Alexandre Mebazaa 1 Etienne Gayat 8 Matthieu Legrand 17
Abstract : Rationale: Subclinical acute kidney injury (sub-AKI) refers to patients with low serum creatinine but elevated alternative biomarkers of AKI. Its incidence and outcome in critically ill patients remain, however, largely unknown. Plasma proenkephalin A 119–159 (penKid) has been proposed as a sensitive biomarker of glomerular function. Objectives: In this ancillary study of two cohorts, we explored the incidence and outcome of sub-AKI based on penKid. Methods: A prospective observational study in ICUs was conducted. FROG-ICU (French and European Outcome Registry in ICUs) enrolled 2,087 critically ill patients, and AdrenOSS-1 (Adrenomedullin and Outcome in Severe Sepsis and Septic Shock-1) enrolled 583 septic patients. The primary endpoint was 28-day mortality after ICU admission. Sub-AKI was defined by an admission penKid concentration above the normal range (i.e., >80 pmol/L) in patients not meeting the definition of AKI. A sensitivity analysis was performed among patients with estimated glomerular filtration rate above 60 ml/min/1.73 m2 at ICU admission. Measurements and Main Results: In total, 6.1% (122/2,004) and 6.7% (39/583) of patients from the FROG-ICU and AdrenOSS-1 cohorts met the definition of sub-AKI (11.6% and 17.5% of patients without AKI). In patients without AKI or with high estimated glomerular filtration rate, penKid was associated with higher mortality (adjusted standardized hazard ratio [HR], 1.4 [95% confidence interval, 1.1–1.8]; P = 0.010; and HR, 1.6 [95% confidence interval, 1.3–1.8]; P < 0.0001, respectively) after adjustment for age, sex, comorbidities, diagnosis, creatinine, diuresis, and study. Patients with sub-AKI had higher mortality compared with no AKI (HR, 2.4 [95% confidence interval, 1.5–3.7] in FROG-ICU and 2.5 [95% confidence interval, 1.1–5.9] in AdrenOSS-1). Conclusions: Sub-AKI defined using penKid occurred in 11.6–17.5% of patients without AKI and was associated with a risk of death close to patients with AKI.
Complete list of metadatas
Contributor : Dominique Mornet <>
Submitted on : Wednesday, October 28, 2020 - 9:22:20 AM
Last modification on : Tuesday, November 10, 2020 - 4:51:01 PM


 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : 2021-03-15

Please log in to resquest access to the document



François Dépret, Alexa Hollinger, Alain Cariou, Nicolas Deye, Antoine Vieillard-Baron, et al.. Incidence and Outcome of Sub-clinical Acute Kidney Injury Using penKid in Critically Ill Patients. American Journal of Respiratory and Critical Care Medicine, American Thoracic Society, 2020, 202 (6), pp.822-829. ⟨10.1164/rccm.201910-1950OC⟩. ⟨hal-02864580⟩



Record views