Ischemic stroke
Transient ischemic attack (TIA
• Transient ischemic attack (TIA) is defined as a transient episode of neurologic dysfunction caused by focal brain, spinal cord, or retinal ischemia, without acute infarction. Central nervous system (CNS) infarction is defined as brain, spinal cord, or retinal cell death attributable to ischemia, based on neuropathologic, neuroimaging, and/or clinical evidence of permanent injury
