Type 0 |
No bleeding |
Type 1 |
Bleeding that is not actionable and does not cause the patient to seek unscheduled performance of studies, hospitalization, or treatment by a health care professional; may include episodes leading to self-discontinuation of medical therapy by the patient without consulting a health care professional |
Type 2 |
Any overt, actionable sign of hemorrhage (eg, more bleeding than would be expected for a clinical circumstance, including bleeding found by imaging alone) that does not fit the criteria for type 3, 4, or 5 but does meet at least one of the following criteria: (1) requiring nonsurgical, medical intervention by a health care professional, (2) leading to hospitalization or increased level of care, or (3) prompting evaluation |
Type 3 |
Type 3a |
Overt bleeding plus hemoglobin drop of 3 to <5 g/dL* (provided hemoglobin drop is related to bleed) |
Any transfusion with overt bleeding |
Type 3b |
Overt bleeding plus hemoglobin drop ≥5 g/dL* (provided hemoglobin drop is related to bleed) |
Cardiac tamponade |
Bleeding requiring surgical intervention for control (excluding dental/nasal/skin/hemorrhoid) |
Bleeding requiring intravenous vasoactive agents |
Type 3c |
Intracranial hemorrhage (does not include microbleeds or hemorrhagic transformation, does include intraspinal) |
Subcategories confirmed by autopsy, imaging, or lumbar puncture |
Intraocular bleed compromising vision |
Type 4: CABG-related bleeding |
Perioperative intracranial bleeding within 48 hours |
Reoperation after closure of sternotomy for the purpose of controlling bleeding |
Transfusion of ≥5 units whole blood or packed red blood cells within a 48-hour period¶ |
Chest tube output ≥2 L within a 24-hour period |
Type 5: Fatal bleeding |
Type 5a |
Probable fatal bleeding; no autopsy or imaging confirmation but clinically suspicious |
Type 5b |
Definite fatal bleeding; overt bleeding or autopsy or imaging confirmation |
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