Classification of warfarin associated bleeding (recommended by Makris and Watson19)
| Classification | Characteristics | Diagnosis |
|---|---|---|
| BP, blood pressure; CT, computed tomography; Hb, haemoglobin; MRI, magnetic resonance imaging. | ||
| Fatal | Death caused by haemorrhage | CT or MRI |
| Postmortem | ||
| Clinically obvious | ||
| Major | Intracranial | CT or MRI |
| Retroperitoneal | CT or MRI | |
| Intraocular | Not conjunctival | |
| Muscle + compartment syndrome | ||
| Invasive procedure required to stop bleeding | ||
| Active bleeding from any orifice + BP <90 mmHg systolic, oliguria, or >2 g fall in Hb | ||
| Minor | Any other bleeding | |