Abstract
Objective
The aim of this study was to analyze risk factors and outcomes of vasoplegia after cardiac surgery based on our experience with almost 2000 cardiac operations performed at our institution.
Methods
We retrospectively analyzed patients who underwent cardiac surgery with cardiopulmonary bypass (CPB) between 2011 and 2013. Data were available for a total of 1992 patients. We defined vasoplegia as hypotension with persistently low systemic vascular resistance (<800 dyn/s/cm) and preserved Cardiac Index (>2.5).
Results
The rate of vasoplegia in our cohort was 20.3% (n = 405). The incidences of mild, moderate, and severe vasoplegia were 13.2, 5.7, and 1.5%, respectively. Factors that increased risk of vasoplegia included valve operations, heart transplants, dialysis-dependent renal failure, age >65, diuretic therapy, and recent myocardial infarction. B blocker therapy was protective against vasoplegia.
Conclusion
Vasoplegic syndrome is still a frequently occurring adverse event following cardiac surgery. In high risk patients for vasoplegia, it may be sensible to proceed with preoperative volume loading (instead of diuresis), initiation of low dose vasopressin therapy if needed, and attempting to up titrate beta-blocker therapy.
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