Table 1.

Thromboembolic event severity

Severity	Criteria
Major	ACS: mortality, ICU requirement, 3-vessel disease
	DVT/PE: mortality, ICU requirement, intubation requirement, tPA admin, EKOS
	Stroke: mortality, ICU requirement, causes severe disability and cannot carry out IADL
Minor	ACS: not meeting “major” or “minimal” criteria, stenting, PTCA
	DVT/PE: event causing hospitalization, but otherwise hemodynamically stable
	Stroke: causes slight disability but can carry out most or moderate IADL
Minimal	ACS: symptomatic management only, 23-h observation, no prescription change
	DVT/PE: symptomatic or discharged on anticoagulation without being admitted
	Stroke: no symptoms (NIHSS of ∼0-3) or no significant disability

ACS, acute coronary syndrome; DVT, deep vein thrombosis; EKOS, catheter-assisted thrombolysis; IADL, instrumental activities of daily living; ICU, intensive care unit; NIHSS, National Institutes of Health stroke scale; PE, pulmonary embolism; tPA, tissue plasminogen activator; PTCA, percutaneous transluminal coronary angioplasty.