Differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury: an IDEAL-ICU substudy

Abstract Background This substudy of the randomized IDEAL-ICU trial assessed whether the timing of renal replacement therapy (RRT) initiation has a differential effect on 90-day mortality, according to the criteria used to diagnose acute kidney injury (AKI), in patients with early-stage septic shock...

Full description

Bibliographic Details
Main Authors: Saber Davide Barbar, Abderrahmane Bourredjem, Rémi Trusson, Auguste Dargent, Christine Binquet, Jean-Pierre Quenot, IDEAL-ICU Study
Format: Article
Language:English
Published: BMC 2023-08-01
Series:Critical Care
Subjects:
Online Access:https://doi.org/10.1186/s13054-023-04602-7
_version_ 1797740753845223424
author Saber Davide Barbar
Abderrahmane Bourredjem
Rémi Trusson
Auguste Dargent
Christine Binquet
Jean-Pierre Quenot
IDEAL-ICU Study
author_facet Saber Davide Barbar
Abderrahmane Bourredjem
Rémi Trusson
Auguste Dargent
Christine Binquet
Jean-Pierre Quenot
IDEAL-ICU Study
author_sort Saber Davide Barbar
collection DOAJ
description Abstract Background This substudy of the randomized IDEAL-ICU trial assessed whether the timing of renal replacement therapy (RRT) initiation has a differential effect on 90-day mortality, according to the criteria used to diagnose acute kidney injury (AKI), in patients with early-stage septic shock. Methods Three groups were considered according to the criterion defining AKI: creatinine elevation only (group 1), reduced urinary output only (group 2), creatinine elevation plus reduced urinary output (group 3). Primary outcome was 90-day all-cause death. Secondary endpoints were RRT-free days, RRT dependence and renal function at discharge. We assessed the interaction between RRT strategy (early vs. delayed) and group, and the association between RRT strategy and mortality in each group by logistic regression. Results Of 488 patients enrolled, 205 (42%) patients were in group 1, 174 (35%) in group 2, and 100 (20%) in group 3. The effect of RRT initiation strategy on 90-day mortality across groups showed significant heterogeneity (adjusted interaction p = 0.021). Mortality was 58% vs. 42% for early vs. late RRT initiation, respectively, in group 1 (p = 0.028); 57% vs. 67%, respectively, in group 2 (p = 0.18); and 58% vs. 55%, respectively, in group 3 (p = 0.79). There was no significant difference in secondary outcomes. Conclusion The timing of RRT initiation has a differential impact on outcome according to AKI diagnostic criteria. In patients with elevated creatinine only, early RRT initiation was associated with significantly increased mortality. In patients with reduced urine output only, late RRT initiation was associated with a nonsignificant, 10% absolute increase in mortality.
first_indexed 2024-03-12T14:16:57Z
format Article
id doaj.art-dd622bf6f0b54f118619be523d33359e
institution Directory Open Access Journal
issn 1364-8535
language English
last_indexed 2024-03-12T14:16:57Z
publishDate 2023-08-01
publisher BMC
record_format Article
series Critical Care
spelling doaj.art-dd622bf6f0b54f118619be523d33359e2023-08-20T11:12:41ZengBMCCritical Care1364-85352023-08-012711910.1186/s13054-023-04602-7Differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury: an IDEAL-ICU substudySaber Davide Barbar0Abderrahmane Bourredjem1Rémi Trusson2Auguste Dargent3Christine Binquet4Jean-Pierre Quenot5IDEAL-ICU StudyUnité de Réanimation Médicale, Service des Réanimations, Centre Hospitalier Universitaire de Nîmes, Hôpital CaremeauCIC 1432, Epidémiologie Clinique, Centre Hospitalier Universitaire Dijon-BourgogneUnité de Réanimation Médicale, Service des Réanimations, Centre Hospitalier Universitaire de Nîmes, Hôpital CaremeauMedical Intensive Care Unit, Hospices Civils de Lyon, Hôpital Lyon-SudCIC 1432, Epidémiologie Clinique, Centre Hospitalier Universitaire Dijon-BourgogneCIC 1432, Epidémiologie Clinique, Centre Hospitalier Universitaire Dijon-BourgogneAbstract Background This substudy of the randomized IDEAL-ICU trial assessed whether the timing of renal replacement therapy (RRT) initiation has a differential effect on 90-day mortality, according to the criteria used to diagnose acute kidney injury (AKI), in patients with early-stage septic shock. Methods Three groups were considered according to the criterion defining AKI: creatinine elevation only (group 1), reduced urinary output only (group 2), creatinine elevation plus reduced urinary output (group 3). Primary outcome was 90-day all-cause death. Secondary endpoints were RRT-free days, RRT dependence and renal function at discharge. We assessed the interaction between RRT strategy (early vs. delayed) and group, and the association between RRT strategy and mortality in each group by logistic regression. Results Of 488 patients enrolled, 205 (42%) patients were in group 1, 174 (35%) in group 2, and 100 (20%) in group 3. The effect of RRT initiation strategy on 90-day mortality across groups showed significant heterogeneity (adjusted interaction p = 0.021). Mortality was 58% vs. 42% for early vs. late RRT initiation, respectively, in group 1 (p = 0.028); 57% vs. 67%, respectively, in group 2 (p = 0.18); and 58% vs. 55%, respectively, in group 3 (p = 0.79). There was no significant difference in secondary outcomes. Conclusion The timing of RRT initiation has a differential impact on outcome according to AKI diagnostic criteria. In patients with elevated creatinine only, early RRT initiation was associated with significantly increased mortality. In patients with reduced urine output only, late RRT initiation was associated with a nonsignificant, 10% absolute increase in mortality.https://doi.org/10.1186/s13054-023-04602-7Renal replacement therapyKidney failureIntensive care unitSeptic shock
spellingShingle Saber Davide Barbar
Abderrahmane Bourredjem
Rémi Trusson
Auguste Dargent
Christine Binquet
Jean-Pierre Quenot
IDEAL-ICU Study
Differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury: an IDEAL-ICU substudy
Critical Care
Renal replacement therapy
Kidney failure
Intensive care unit
Septic shock
title Differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury: an IDEAL-ICU substudy
title_full Differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury: an IDEAL-ICU substudy
title_fullStr Differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury: an IDEAL-ICU substudy
title_full_unstemmed Differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury: an IDEAL-ICU substudy
title_short Differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury: an IDEAL-ICU substudy
title_sort differential effect on mortality of the timing of initiation of renal replacement therapy according to the criteria used to diagnose acute kidney injury an ideal icu substudy
topic Renal replacement therapy
Kidney failure
Intensive care unit
Septic shock
url https://doi.org/10.1186/s13054-023-04602-7
work_keys_str_mv AT saberdavidebarbar differentialeffectonmortalityofthetimingofinitiationofrenalreplacementtherapyaccordingtothecriteriausedtodiagnoseacutekidneyinjuryanidealicusubstudy
AT abderrahmanebourredjem differentialeffectonmortalityofthetimingofinitiationofrenalreplacementtherapyaccordingtothecriteriausedtodiagnoseacutekidneyinjuryanidealicusubstudy
AT remitrusson differentialeffectonmortalityofthetimingofinitiationofrenalreplacementtherapyaccordingtothecriteriausedtodiagnoseacutekidneyinjuryanidealicusubstudy
AT augustedargent differentialeffectonmortalityofthetimingofinitiationofrenalreplacementtherapyaccordingtothecriteriausedtodiagnoseacutekidneyinjuryanidealicusubstudy
AT christinebinquet differentialeffectonmortalityofthetimingofinitiationofrenalreplacementtherapyaccordingtothecriteriausedtodiagnoseacutekidneyinjuryanidealicusubstudy
AT jeanpierrequenot differentialeffectonmortalityofthetimingofinitiationofrenalreplacementtherapyaccordingtothecriteriausedtodiagnoseacutekidneyinjuryanidealicusubstudy
AT idealicustudy differentialeffectonmortalityofthetimingofinitiationofrenalreplacementtherapyaccordingtothecriteriausedtodiagnoseacutekidneyinjuryanidealicusubstudy