摘要
Stroke is a leading cause of death and disability in theUnited States and globally. Each year, approxirnately 795,000Americans experience a stroke.Total annual costs of stroke,both direct and indirect, amount to $33 billion. Ischemicstroke is predicted to cost more than $2.2 trillion between2005 and 2050. In the United States, 87% of all strokesare ischemic, 10% are due to intracerebral hemorrhage, and3% are due to subarachnoid hemorrhage.