Definition, etiology, and clinical manifestations of transient ischemic attack
- Karen L Furie, MD, MPH
Karen L Furie, MD, MPH
- Chair and Professor of Neurology
- Alpert Medical School of Brown University
- Hakan Ay, MD
Hakan Ay, MD
- Stroke Service, Department of Neurology
- A.A. Martinos Center for Biomedical Imaging, Department of Radiology
- Massachusetts General Hospital
- Harvard Medical School
Cerebrovascular disease is caused by one of several pathophysiologic processes involving the blood vessels of the brain:
●The process may be intrinsic to the vessel, as in atherosclerosis, lipohyalinosis, inflammation, amyloid deposition, arterial dissection, developmental malformation, aneurysmal dilation, or venous thrombosis.
●The process may originate remotely, as occurs when an embolus from the heart or extracranial circulation lodges in an intracranial vessel.
●The process may result from inadequate cerebral blood flow due to decreased perfusion pressure or increased blood viscosity.
●The process may result from rupture of a vessel in the subarachnoid space or intracerebral tissue.To continue reading this article, you must log in with your personal, hospital, or group practice subscription. For more information on subscription options, click below on the option that best describes you:
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- DEFINITION OF TIA
- Symptom duration and infarction
- CLINICAL MANIFESTATIONS AND MECHANISMS
- Low-flow TIA
- Embolic TIA
- Lacunar or small vessel TIA
- Typical TIA
- Atypical TIA
- HIGH-RISK LESIONS
- Internal carotid artery TIA
- Intracranial atherothrombotic disease
- Arterial, aortic, or cardiac sources of emboli
- Dissection lesions
- URGENCY OF EVALUATION
- INFORMATION FOR PATIENTS
- SUMMARY AND RECOMMENDATIONS