脑部并发症及处理直接由高血压引起的脑部并发症,包括高血压脑病、微梗塞和高血压性脑出血。高血压脑病当全身动脉血压过度升高或下降时,脑动脉会相应地收缩或扩张,以保障稳定的脑血流,称为自动调节。这种自动调节的机构,主要发生在直径为50～200微米的阻力脑动脉。正常年轻人血压自动调节下限的平均动脉压约为60mmHg, Brain complications and treatment of brain complications caused directly by hypertension, including hypertensive encephalopathy, micro-infarction and hypertensive intracerebral hemorrhage. Hypertensive encephalopathy When systemic arterial blood pressure increases or decreases excessively, the cerebral arteries contract or expand accordingly, in order to ensure a stable cerebral blood flow, which is called autoregulation. This automatic adjustment of the body, mainly occurs in the resistance of cerebral artery diameter of 50 ~ 200 microns. Normal young people lower blood pressure automatically adjust the lower limit of the average arterial pressure of about 60mmHg,