• Jerrold H Levy, Keyvan Karkouti, and Roman M Sniecinski.
• Emory University School of Medicine and Emory Healthcare, Atlanta, Georgia 30322, USA.
• Curr Opin Anaesthesiol. 2012 Feb 1;25(1):74-9.

Purpose Of ReviewBleeding in a perioperative setting occurs due to multiple causes, but newer anticoagulant and antiplatelet therapies are increasingly used preoperatively. As a result, patients often can present for surgery with underlying hemostatic disorders due to these acquired disorders or following major surgery or trauma. Because bleeding occurs due to multiple causes, the addition of pharmacologic agents creates an acquired defect that complicates the surgical injury and may result in increased blood loss. An understanding of hemostasis and therapeutic approaches, especially those in our current clinical settings, is crucial in managing these patients.Recent FindingsPharmacologic agents including antifibrinolytics and prohemostatic proteins are commonly administered, but a multimodal approach to management is important. Of note is that aprotinin has been reintroduced into the Canadian market in September 2011. Recombinant and purified coagulation therapies are under investigation, and provide clinicians specific agents to treat targeted deficiencies.SummaryNonsurgical bleeding in the operating room is the result of a multitude of factors including preoperative anticoagulants, dilution, fibrinolysis, and factor consumption. Therapeutic prohemostatic pharmacologic approaches, in addition to standard transfusion therapy, need to be considered in the prevention and treatment of coagulopathy in surgical patients.

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