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01.12.2018 | Research | Ausgabe 1/2018 Open Access

Critical Care 1/2018

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

Zeitschrift:
Critical Care > Ausgabe 1/2018
Autoren:
Alexandre Mebazaa, Christopher Geven, Alexa Hollinger, Xavier Wittebole, Benjamin Glen Chousterman, Alice Blet, Etienne Gayat, Oliver Hartmann, Paul Scigalla, Joachim Struck, Andreas Bergmann, Massimo Antonelli, Albertus Beishuizen, Jean-Michel Constantin, Charles Damoisel, Nicolas Deye, Salvatore Di Somma, Thierry Dugernier, Bruno François, Stephane Gaudry, Vincent Huberlant, Jean-Baptiste Lascarrou, Gernot Marx, Emmanuelle Mercier, Haikel Oueslati, Peter Pickkers, Romain Sonneville, Matthieu Legrand, Pierre-François Laterre, AdrenOSS-1 study investigators
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s13054-018-2243-2) contains supplementary material, which is available to authorized users.
Christopher Geven and Alexa Hollinger contributed equally to this work.

Abstract

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.
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