Low Dose Vasopressin vs Phenylephrine in Cardiac Surgery

Summary

This is a randomized, open label study to investigate vasopressin versus phenylephrine as a first line pressor in cardiac surgery. All patients \>18 years of age presenting for coronary artery bypass graft (CABG), valve surgery, or combined CABG and valve surgery will be screened for inclusion. Patients with ejection fraction \< 35%, \> moderate pulmonary hypertension, \> mild right ventricular dysfunction, a planned radial arterial graft, or circulatory arrest will be excluded. Patients will be randomized to receive either vasopressin or phenylephrine as the first line vasopressor during the perioperative period to maintain mean arterial blood pressure \>65 mmhg. Primary outcome is acute kidney injury. Secondary outcomes are 30-day mortality, stroke, myocardial infarction, re-operation, sternal infection, atrial fibrillation, intensive care unit length of stay, and total vasopressor hours.

Eligibility

Inclusion Criteria:

* \>18 years of age
* Coronary artery bypass graft (CABG), valve, or combined CABG and valve surgery

Exclusion Criteria:

* Ejection fraction \< 35%
* \> moderate pulmonary hypertension
* \> mild right ventricular dysfunction
* Radial arterial graft
* Circulatory arrest

Conditions2

Interventions2

Locations1 site

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