Abstract
Although tissue plasminogen activator (tPA) has been approved for use in acute ischemic stroke, concerns linger regarding its safety. We analyzed whether patients in special subgroups (i.e., age >70 years, baseline National Institute of Health Stroke Scale (NIHSS) score >20, diabetes, congestive heart failure (CHF), and of Hispanic origin) have a higher risk of symptomatic intracerebral hemorrhage (SICH) than patients without these characteristics.