NEET PG DENTAL EXAM

Detailed explanation-1: -Transient ischemic attack (TIA) is a transient episode of neurologic dysfunction caused due to loss of blood flow to the brain or spinal cord without acute infarction. Depending on the area of the brain involved, symptoms of TIA vary widely from patient to patient.

Detailed explanation-2: -TIAs do not cause lasting damage to the brain. But, TIAs are a warning sign that you may have a true stroke in the coming days or months. Some people who have a TIA will have a stroke within 3 months. Half of these strokes happen during the 48 hours after a TIA.

Detailed explanation-3: -What is a transient ischemic attack? A transient ischemic attack is a brief occurrence during which blood flow to the brain is temporarily cut off, usually by a blood clot, but sometimes by a narrowed carotid artery. This causes stroke-like symptoms for a brief time, until the blood clot breaks apart or dissolves.

Detailed explanation-4: -Transient ischemic attacks are diagnosed retrospectively when sudden neurologic deficits referable to ischemia in an arterial territory resolve within 1 hour. Because an infarct, a small hemorrhage, and even a mass lesion cannot be excluded clinically, neuroimaging is required.