• R T Suojaranta-Ylinen, A E Vento, T Pätilä, and S I Kukkonen.
• Department of Anesthesia and Intensive Care Medicine, Helsinki University Hospital, Helsinki, Finland. raili.suojaranta-ylinen@hus.fi
• Scand J Surg. 2007 Jan 1;96(4):314-8.

Background And AimsArginin vasopressin (AVP) is a potent vasoconstrictor which has been used in vasodilatory shock when therapy with catecholamines and fluids has failed. In this study we evaluated the association of AVP with organ failure and mortality in cardiac surgical patients suffering from vasodilatory shock refractory to norepinephrine (NE) treatment.Material And MethodsCardiac surgical patients who received AVP in addition to NE (N=33, AVP-group) and 33 control patients (NE group) who were treated with an equal dose of NE compared with AVP patients when AVP infusion started. Data on preoperative risk factors according to EuroSCORE and predicted mortality calculated by logistic EuroSCORE were collected preoperatively. Data on hemodynamics, organ dysfunctions, length of intensive care unit stay and mortality were collected.ResultsEuroSCORE did not differ between the groups, AVP:10.4 +/- 3.9 vs. NE 8.9 +/- 4.0. Observed 30 day mortality was lower than predicted in both groups, AVP: 7 (21.7%) vs. predicted mortality 25.9% and NE: 2 (6.1%) vs. 16.0%, respectively. There were more renal complications (36.4% vs. 9.1%, p = 0.008) and infections (30.3% vs. 3.0%, p = 0.003) in patients receiving AVP. Cardiovascular complications did not differ between the groups.ConclusionsIn this prospectively observed cohort of cardiac surgical patients, AVP did not increase mortality predicted by Euroscore. Anyhow renal and infection complications were common.

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