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在西方国家65岁以上的老人中约50％有过高血压。因为生命器官的动脉灌注压随着年龄增长而减少,为维持恰当的器官血流量,有人认为血压升高是一种有益的代偿;但高血压患者8年内中风和心脏病比正常血压老人增加2～3倍,心血管疾患的危险随收缩压增高进行性增加,而与年龄无关,器官损害随着血压增加而加剧,故不能认为高血压是代偿表现。
About 50% of people over the age of 65 in Western countries have high blood pressure. Because arterial perfusion pressure in living organs decreases with age, it is thought that elevated blood pressure is a beneficial compensatory measure to maintain proper organ blood flow; however, stroke and heart disease increase in hypertensive patients over 8 years compared with normotensive subjects 2 to 3 times, the risk of cardiovascular disease increased with systolic blood pressure increased sexually, but has nothing to do with age, organ damage increased with the increase of blood pressure, it can not be considered high blood pressure is compensatory performance.