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短暂性脑缺血发作(TIA)是由于大脑局部供血一过性减少引起的短暂的神经功能障碍。虽然TIA本身不危及生命,但它可能是脑血管意外(中风)的先兆。TIA发作一般历时几分,通常不超过1h,偶尔持续超过24h。TIA不产生持久性损害,发作间期神经系统检查正常。但即使是短暂的神经功能波动,病人的精神压力也很大。病人了解TIA病因、预防、诊断和治疗有助于其消除紧张情绪。 1.什么人最易患TIA 有颈动脉或颅外段脑动脉粥样硬化的病人易患TIA,TIA由血管狭窄、高凝状态或栓子引起。粥样硬化斑块或血管狭窄处血流缓慢、紊乱,易形成血栓,血栓可从血管壁上脱落形成栓子。其他可导致TIA的病因有高血压病、风湿性心脏病和心律失常等。 任何曾发生过心肌梗塞或TIA者,以及心血管
Transient Ischemic Attack (TIA) is a transient neurological dysfunction caused by a transient decrease in local blood supply to the brain. Although TIA itself is not endangering life, it may be a precursor to cerebrovascular accidents (stroke). TIA seizure generally lasted a few minutes, usually no more than 1h, and occasionally lasts more than 24h. TIA does not produce permanent damage, interictal neurological examination was normal. But even short-term fluctuations in neurological function, the patient’s mental stress is also great. Patients understand the cause of TIA, prevention, diagnosis and treatment help to eliminate tension. 1. Who is most susceptible to TIA Carotid or extracranial cerebral atherosclerosis in patients susceptible to TIA, TIA by vascular stenosis, hypercoagulable state or emboli caused. Atherosclerotic plaque or vascular stenosis Department of blood flow slow, disorder, easy to form thrombus, thrombus can shed from the vessel wall to form emboli. Other causes of TIA are hypertension, rheumatic heart disease and arrhythmia. Anyone who has had a myocardial infarction or TIA, and cardiovascular