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Excessive Cardiac Surgical Bleeding: Definition. Loosely defined as “I know it when I see it…” Formally defined † as the following: > 300 mL of chest tube drainage in 1 st hour after chest closure ≥ 8 mL/kg in any 2 successive hours 20 mL/kg in first 4 hours post-CPB.
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Excessive Cardiac Surgical Bleeding: Definition • Loosely defined as “I know it when I see it…” • Formally defined† as the following: • > 300 mL of chest tube drainage in 1st hour after chest closure • ≥ 8 mL/kg in any 2 successive hours • 20 mL/kg in first 4 hours post-CPB † Speiss B, Harrow J, Kaplan J. Kaplan’s Cardiac Anesthesia, 5th ed. Philadelphia, Elsevier/Saunders, 2006, chap. 29, p 974. Milas BL, Jobes DR, Gorman RC: Semin Thorac Cardiovasc Surg 2000;12:326.
