Key result
Cardiopulmonary bypass is linked to a ~43-fold surge in peak copeptin levels during cardiac surgery.
Why the study?
Copeptin levels during the full perioperative course in adult cardiac surgery with cardiopulmonary bypass were not previously described.
Cohort (n=57)
No
Absolute Event Rate: 286% vs 6.6%
p-value: p=<0.001
Copeptin levels rise significantly during cardiopulmonary bypass, indicating strong activation of the arginine vasopressin system, which may serve as a future prognostic marker in cardiac surgery.
Preoperative copeptin stratification may identify higher-risk cardiac surgery patients; leaves open whether targeted interventions improve outcomes.
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Engerström et al. (2025) conducted a cohort in Adults undergoing open cardiac surgery with cardiopulmonary bypass (n=57). Cardiopulmonary bypass (CPB) during open cardiac surgery vs. Preoperative baseline was evaluated on Copeptin levels at 60 minutes after CPB initiation (p=<0.001). Cardiopulmonary bypass during cardiac surgery significantly increased median copeptin levels from a preoperative baseline of 6.6 pmol/L to a peak of 286 pmol/L at 60 minutes after CPB initiation.
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