• 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, LascarrouJean-BaptisteJBCentre Hospitalier Universitaire de Nantes, Nantes, France., Gernot Marx, Emmanuelle Mercier, Haikel Oueslati, Peter Pickkers, Romain Sonneville, Matthieu Legrand, Pierre-François Laterre, and AdrenOSS-1 study investigators.
• Department of Anesthesiology, Burn and Critical Care Medicine, AP-HP, Saint Louis and Lariboisière University Hospitals, 2 rue A. Paré, 75010, Paris, France.
• Crit Care. 2018 Dec 21; 22 (1): 354354.

BackgroundAdrenomedullin (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.MethodsAdrenOSS-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.ResultsCirculating 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).ConclusionsAdrenOSS-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 RegistrationClinicalTrials.gov, NCT02393781 . Registered on March 19, 2015.

38 keywords...

hide…