在高血压病发展过程中,由某些诱因(如紧张、急躁状态、过度疲劳、内分泌改变等),使得血压急剧上升,病情急剧恶化,全身小动脉突然痉挛、伴有剧烈头痛、头晕、耳鸣、心动过速、气急、心绞痛、视力模糊、尿频、尿少、面色苍白或潮红等症状,称为高血压危象。高血压的早期及晚期均可发生危象。发作时间短暂,可以反复发作,发作时可有蛋白尿及血糖升高。高血压脑病多发生于急进型或严重的缓进型高血压病患者,由于脑动脉硬化,脑内细小动脉发生持久的 In the development of hypertension, certain causes (such as tension, irritability, fatigue, endocrine changes, etc.), making a sharp increase in blood pressure, the condition deteriorated rapidly, systemic splenic artery spasm, accompanied by severe headache, dizziness, tinnitus , Tachycardia, shortness of breath, angina, blurred vision, frequent urination, oliguria, pale or flushing and other symptoms, known as hypertensive crisis. Hypertension can occur early and late crisis. Episodes of time is short, can recurrent, attack may have proteinuria and elevated blood sugar. Hypertensive encephalopathy mostly occurs in radical or severe asymptomatic hypertensive patients, due to cerebral arteriosclerosis, the occurrence of persistent small arteries in the brain