Carotid Circulation Transient Ischemic Attack (TIA) refers to a brief episode of neurologic dysfunction caused by a temporary disruption in blood flow to the brain, specifically in the carotid arteries. The carotid arteries are major blood vessels located on each side of the neck that supply oxygenated blood to the brain.
During a TIA, there is a temporary blockage or narrowing of one or both of the carotid arteries, reducing blood flow to a part of the brain. This results in ischemia, which means a lack of oxygen and nutrients reaching brain cells. However, unlike a stroke, a TIA is short-lived and the neurologic symptoms resolve within 24 hours.
Symptoms of a carotid circulation TIA may include sudden weakness or numbness in the face, arm, or leg, usually on one side of the body. There may also be difficulty speaking or understanding speech, vision changes, dizziness, or severe headache.
Carotid circulation TIAs are often caused by the build-up of fatty deposits (plaques) in the carotid arteries, which can reduce or block blood flow. These plaques can rupture, leading to the formation of a blood clot that can cause a transient blockage in the arteries.
It is crucial to seek immediate medical attention when experiencing symptoms of a carotid circulation TIA, as it can be a warning sign of an impending stroke. Prompt diagnosis and treatment are necessary to prevent further damage to the brain and reduce the risk of future TIAs or strokes.
