Keywords: transient ischemic
Transient ischemic attack, commonly known as “transient ischemic attack", referred to as the “TIA". Refers to transient cerebral insufficiency, leading to focal neurological dysfunction of the blood supply to the area, the corresponding signs and symptoms. TIA predilection at 50-70 years of age, more men than women, the onset is sudden, short-lived. The general symptoms within five minutes that reached a peak, one seizure often last 5-20 minutes, the longest no more than 24 hours, and fully recovered within 24 hours without sequelae. But can be recurrent. The number of episodes several times a day, ranging from a few weeks, months or even years of time.
TIA is divided into the carotid system TIA and vertebral – basilar artery system TIA.
Carotid system TIA: paroxysmal laterality or the most common single limb paresis and the main hemisphere lesions often appear aphasia, hemisensory decline or hemianopia sometimes appear.
Vertebral – basilar artery system TIA: The most common symptoms of paroxysmal vertigo, often accompanied by nausea, vomiting; sometimes can occur ataxia, diplopia, balance disorders, swallowing difficulties and other symptoms.