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. 2009;27(4):259–274. doi: 10.1111/j.1755-5922.2009.00096.x

Table 9.

PLATO bleeding definitions* (modified from CURE definitions)

Term Associated with a ↓ in hemoglobin Transfusion of whole blood or PRBCs for bleeding
Major bleed—life threatening Fatal or intracranial or intrapericardial with cardiac tamponade or hypovolemic shock or severe hypotension requiring pressors or surgery >50 g/L (3.1 mmol/L) ≥4 units
Major bleed—other Significantly disabling (e.g., intraocular with permanent vision loss) 30–50 g/L (1.9–3.1 mmol/L) 2–3 units
Minor bleed Requires medical intervention to stop or treat bleeding
Minimal bleed All others not requiring intervention or treatment

From James et al. [53].

PRBCs, packed red blood cells.

*If the bleeding event fulfills criteria in more than one category, the event will be assigned to the most severe category.