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Circulating adrenomedullin estimates survival and reversibility of organ failure in sepsis: the prospective observational multinational Adrenomedullin and Outcome in Sepsis and Septic Shock-1 (AdrenOSS-1) study.

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Mebazaa, Alexandre Geven, Christopher Hollinger, Alexa Wittebole, Xavier [UCL] Chousterman, Benjamin Glen Laterre, Pierre-François [UCL] AdrenOSS-1 study investigators

BACKGROUND: Adrenomedullin (ADM) regulates vascular tone and endothelial permeability during sepsis. Levels of circulating biologically active ADM (bio-ADM) show an inverse relationship with blood pressure and a direct relationship with vasopressor requirement. In the present prospective observational multinational Adrenomedullin and Outcome in Sepsis and Septic Shock 1 (, AdrenOSS-1) study, we assessed relationships between circulating bio-ADM during the initial intensive care unit (ICU) stay and short-term outcome in order to eventually design a biomarker-guided randomized controlled trial. METHODS: AdrenOSS-1 was a prospective observational multinational study. The primary outcome was 28-day mortality. Secondary outcomes included organ failure as defined by Sequential Organ Failure Assessment (SOFA) score, organ support with focus on vasopressor/inotropic use, and need for renal replacement therapy. AdrenOSS-1 included 583 patients admitted to the ICU with sepsis or septic shock. RESULTS: Circulating bio-ADM levels were measured upon admission and at day 2. Median bio-ADM concentration upon admission was 80.5 pg/ml [IQR 41.5-148.1 pg/ml]. Initial SOFA score was 7 [IQR 5-10], and 28-day mortality was 22%. We found marked associations between bio-ADM upon admission and 28-day mortality (unadjusted standardized HR 2.3 [CI 1.9-2.9]; adjusted HR 1.6 [CI 1.1-2.5]) and between bio-ADM levels and SOFA score (p < 0.0001). Need of vasopressor/inotrope, renal replacement therapy, and positive fluid balance were more prevalent in patients with a bio-ADM > 70 pg/ml upon admission than in those with bio-ADM ≤ 70 pg/ml. In patients with bio-ADM > 70 pg/ml upon admission, decrease in bio-ADM below 70 pg/ml at day 2 was associated with recovery of organ function at day 7 and better 28-day outcome (9.5% mortality). By contrast, persistently elevated bio-ADM at day 2 was associated with prolonged organ dysfunction and high 28-day mortality (38.1% mortality, HR 4.9, 95% CI 2.5-9.8). CONCLUSIONS: AdrenOSS-1 shows that early levels and rapid changes in bio-ADM estimate short-term outcome in sepsis and septic shock. These data are the backbone of the design of the biomarker-guided AdrenOSS-2 trial. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02393781 . Registered on March 19, 2015.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2018
Language Anglais
Journal information "Critical Care" - Vol. 22, no.1, p. 354 (2018)
Peer reviewed yes
Publisher BioMed Central Ltd. ((United Kingdom) London)
issn 1364-8535
e-issn 1466-609X
Publication status Publié
Affiliations UCL - SSS/IREC/MEDA - Pôle de médecine aiguë
UCL - (SLuc) Service de soins intensifs
Keywords Biomarker ; Outcome ; Sepsis-2 ; Sepsis-3
Links
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Bibliographic reference Mebazaa, Alexandre ; Geven, Christopher ; Hollinger, Alexa ; Wittebole, Xavier ; Chousterman, Benjamin Glen ; et. al. Circulating adrenomedullin estimates survival and reversibility of organ failure in sepsis: the prospective observational multinational Adrenomedullin and Outcome in Sepsis and Septic Shock-1 (AdrenOSS-1) study.. In: Critical Care, Vol. 22, no.1, p. 354 (2018)
Permanent URL http://hdl.handle.net/2078.1/212884