The Thoracic and cardiovascular surgeon
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Thorac Cardiovasc Surg · Sep 2016
Randomized Controlled TrialAn Adjusted Calculation Model Allows for Reduced Protamine Doses without Increasing Blood Loss in Cardiac Surgery.
Background Heparin dosage for anticoagulation during cardiopulmonary bypass (CPB) is commonly calculated based on the patient's body weight. The protamine-heparin ratio used for heparin reversal varies widely among institutions (0.7-1.3 mg protamine/100 IU heparin). Excess protamine may impair coagulation. ⋯ However, this difference was not found statistically significant (p = 0.074). Conclusion HeProCalc-based dosage of heparin and protamine allowed for reduced protamine use after CPB compared with when conventional calculations were used. Furthermore, HeProCalc-based regimen for heparin reversal suggested less postoperative bleeding, although the difference between the groups was not statistically significant.