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高血压、冠心病是老年期心血管系统老年性变化所导致的主要疾病,其发病率随着年龄的增长而增加。 一.老年期血压变化特点 1.单纯收缩压增高。老年人高血压以收缩期高血压多见,如170～190/80mmHg(低压正常),高压与低压之间的差(即脉压差)比较大,老年高血压者中大约有40％～50％属于此种类型(年轻人的高血压多表现为舒张期高血压,且脉压差比较小)。一般情况下,收缩压与舒张压之间的脉压差在40mmHg左右。我国1999年新制定的高血压指南中专门列出单纯收缩期高血压。导致单纯收缩期高血压的原因是由于老年人多有不同程度的动脉粥,样硬化及大动脉硬化,使血管弹性降低,因此当心
Hypertension and coronary heart disease are the major diseases caused by senile changes of the elderly cardiovascular system. Their prevalence increases with age. A change in the characteristics of senile blood pressure 1. Simple systolic blood pressure increased. Hypertension in the elderly to more common systolic hypertension, such as 170 ~ 190 / 80mmHg (normal low pressure), the difference between high pressure and low pressure (ie, pulse pressure difference) is relatively large, about 40% of elderly hypertensive persons to 50 % Belongs to this category (young people with hypertension often show diastolic hypertension, and pulse pressure is relatively small). Under normal circumstances, systolic blood pressure and diastolic blood pressure difference between 40mmHg. China in 1999 newly developed guidelines for hypertension set out a simple systolic hypertension. Lead to simple systolic hypertension because the elderly are due to varying degrees of atherosclerosis and hardening of the arteries, reducing blood vessel elasticity, so beware