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Observational Study
The value of bioactive adrenomedullin and dipeptidyl peptidase 3 to predict short-term unfavourable outcomes after cardiac surgery: A prospective cohort study.
- Dirk van Lier, Remi Beunders, Matthijs Kox, and Peter Pickkers.
- From the Department of Intensive Care Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.
- Eur J Anaesthesiol. 2022 Apr 1; 39 (4): 342351342-351.
BackgroundAdrenomedullin (ADM) is a key regulator of endothelial barrier function and vascular tone. Dipeptidyl peptidase 3 (DPP3) is a protease involved in the degradation of several cardiovascular mediators. Increased levels of bioactive ADM (bio-ADM) and circulating DPP3 (cDPP3) were found to predict short-term outcome in cardiogenic shock patients.ObjectivesTo investigate the unknown temporal profiles of bio-ADM and cDPP3 and their association with short-term outcome following cardiac surgery.DesignProspective observational study of 203 adult cardiac surgery patients admitted to the intensive care unit (ICU) postoperatively. Plasma bio-ADM and cDPP3 levels were measured at ICU admission (day 1) and on days 2 and 3.Main Outcome MeasuresBiomarker prediction of prolonged vasopressor dependency (>3 days), acute kidney injury (AKI) and prolonged ICU length of stay (ICU-LOS) (>3 days).Resultsbio-ADM and cDPP3 levels displayed distinct temporal profiles following cardiac surgery. cDPP3 levels were highest on day 1 and strongly correlated with surgical complexity and duration but subsequently normalised on day 2 in most patients. In contrast, bio-ADM levels on day 1 were within the normal range but subsequently increased. Day 2 bio-ADM levels were strongly associated with study outcomes: the area under the receiver-operating curves (AUROC) were 0.82 (95% CI, 0.72 to 0.92) for prolonged vasopressor dependency, 0.87 (0.81 to 0.92) for AKI and 0.82 (0.75 to 0.90) for prolonged ICU-LOS (all P < 0.0001). cDPP3 levels on day 2 also predicted these outcomes, albeit to a lesser extent, with AUROCs of 0.73 (95% CI, 0.64 to 0.81) for prolonged vasopressor dependency, 0.69 (0.61 to 0.77) for AKI and 0.70 (0.62 to 0.79) for prolonged ICU-LOS (all P < 0.0001).ConclusionFollowing cardiac surgery, increased bio-ADM levels are strongly associated with unfavourable short-term outcomes, whereas cDPP3 levels are mainly related to surgery complexity and duration. On the basis of these findings, ADM-modulating therapies may have beneficial effects in cardiac surgery patients whereas DPP3-targeted therapies should be reserved for patient categories with higher baseline disease severity.Copyright © 2022 European Society of Anaesthesiology and Intensive Care. Unauthorized reproduction of this article is prohibited.
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