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患高血压肾病是怎么回事?

2019-05-16 阅读量:918次
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高血压肾病是高血压肾病系原发性高血压引起的良性小动脉肾硬化(又称高血压肾小动脉硬化)和恶性小动脉肾硬化,并伴有相应临床表现的疾病。下面我们详细来看看:

高血压肾病患者的病理主要有两个方面,一是患者出现容量依赖性高血压,二是患者出现肾素依赖性高血压。

患者出现容量依赖性高血压的原因主要是由于患者体内的水钠潴留和肾脏的血容量扩张导致的。患者出现肾脏实质性的病变时,患者体内的水和盐都积聚在体内,导致水钠潴留,然后患者血液内的血容量增加,引起高血压。

另外一种,患者出现肾素依赖性的高血压的时候,肾脏出现动脉硬化,患者体内的肾素血管紧张素等升高,患者使用利尿脱水的药物导致肾脏的血流量下降,肾素分泌增加,肾脏的血液逐渐的升高。

有数据显示,患高血压5—10年后,可能出现轻至中度肾动脉硬化,继而导致肾脏缺血、萎缩,甚至造成肾衰竭等。在这段时间内,患者不会出现明显的肾病症状,只能通过微量白蛋白尿等检测指标,才能看出异常。

面对高血压肾病疾病,患者需要将饮食管理与规范治疗相结合。

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