论文部分内容阅读
人们都知道高血压可以引起中风,殊不知血压过低也同样可引起中风。医院里经常可看见由于降压药使用不当,造成降压过度而引起的中风。中风分为两大类:一类是由于高血压引起的脑血管破裂出血,称为出血性中风,如脑溢血、蛛网膜下腔出血等;另一类是脑动脉粥样硬化引起的中风,称缺血性中风,如脑血栓形成、脑栓塞等。高血压病人,一方面血管弹性下降,脆性增加;另一方面血管内壁逐渐有类脂质和胆固醇沉积,久而久之,形成血管内壁粥样硬化和斑块。在这种情况下,若服用降压药剂量过大,使血压骤然大幅度下降,则会影响大脑血液供应,脑部血流过缓,血粘度增加,血液中的血小
People all know that high blood pressure can cause a stroke. Everyone knows that low blood pressure can also cause a stroke. Often seen in hospitals due to improper use of antihypertensive drugs, causing excessive blood pressure caused by stroke. Stroke is divided into two categories: one is due to hypertension caused by cerebral hemorrhage, known as hemorrhagic stroke, such as cerebral hemorrhage, subarachnoid hemorrhage; the other is cerebral atherosclerosis caused by stroke, said Ischemic stroke, such as cerebral thrombosis, cerebral embolism. Hypertensive patients, on the one hand decreased blood vessel elasticity, increased brittleness; the other hand, the blood vessels gradually lipid-like lipid and cholesterol deposition, over time, the formation of vascular wall atherosclerosis and plaque. In this case, taking a large amount of antihypertensive drugs, the sudden drop in blood pressure, it will affect the brain blood supply, cerebral blood flow slowed, increased blood viscosity, blood in the blood