Keywords: clinical manifestations of cerebral infarction aura symptoms
Cerebral infarction-infarction of the brain, clogged arteries after the destruction of the corresponding parts of the brain tissue, may be associated with the issue of blood. Pathogenesis of thrombosis or embolism, vascular lesions involving the nature of the symptoms vary.
Cerebral infarction due to cerebral atherosclerosis, vascular intimal injury to the cerebral artery lumen stenosis, and thus the local thrombosis due to a variety of factors, arterial stenosis or complete occlusion, resulting in brain tissue ischemia, hypoxia, necrosis, cerebrovascular disease caused by a neurological dysfunction.
Cerebral infarction main factors: hypertension, coronary heart disease, diabetes, overweight, hyperlipidemia, eating fat, many patients have a family history. More common in the 45 to 70-year-old in the elderly.
A) infarction aura symptoms
Cerebral infarction patients in quiet resting the disease, some patients wake up discovery Kouyanwaixie, hemiplegia, drooling, eating out cooked rice, not lift Dongkuaizi, this is the occurrence of cerebral infarction, often people off guard. The only part of the patient prior to the onset of numbness, speech is unclear, a sex blackouts, dizziness or vertigo, nausea, blood pressure fluctuations (which can be raised or low), transient ischemic symptoms. These aura symptoms are generally very mild, short duration, often overlooked.
B) infarction clinical manifestations:
Infarct site and infarct size vary, the most prone to performance are as follows:
(1) sudden onset, often quiet rest or sleep onset. The onset peaked within hours or within 1 to 2 days.
(2), headache, vertigo, tinnitus, hemiplegia, can be a single limb or side of the body, can be a variety of situations of the upper extremity than the lower extremity weight or lower limbs than the upper limbs and difficulty swallowing, speech is unclear, nausea, vomiting, severe soon unconscious. Each patient can have several of these clinical manifestations.
(3) the significance of brain CT examination: brain CT scan showed cerebral infarction size and location of the lesion accuracy rate of 66.5% to 89.2%, or 100% of the accuracy of early brain hemorrhage. Therefore, early CT useful in differential diagnosis, exclude cerebral hemorrhage lesions. This is very important to have a distinct place in the treatment of early onset of cerebral hemorrhage and cerebral thrombosis. When cerebral infarction within 24 hours, or less than 8 mm infarct, or lesions in the brainstem and cerebellum, brain CT examination often can not provide the correct diagnosis. If necessary, in the short term review, in order to avoid delays in treatment.
(4) there is a feature called “lacunar infarction disease, patients may be asymptomatic or mild symptoms, the disease in other disease brain CT examination found, some belong to the old lesions. This situation is more common in the elderly, patients often accompanied by hypertension, atherosclerosis, hyperlipidemia, coronary heart disease, diabetes and other chronic diseases. Lacunar infarction can be repeated seizures, some patients eventually develop symptomatic cerebral infarction, some patients in stable condition, unchanged for years. So for the elderly “silent stroke" should pay attention, in a positive attitude toward prevention.