原发性高血压是常见的心血管病之一,严重影响心、脑、肾的结构和功能,临床上将高血压所致的肾脏结构和功能的改变,称为高血压肾损害。原发性高血压初期即可发生肾动脉痉挛,使肾血流量降低,表现为轻到中度以肾缺血为主要表现的肾小动脉硬化,继而出现缓慢发展的肾小管和肾小球功能的损害,最终出现肾功能衰竭。目前常用的评判肾功能的指标有尿白 Essential hypertension is one of the common cardiovascular diseases, seriously affecting the structure and function of heart, brain and kidney. Clinically, the changes of renal structure and function caused by hypertension are called hypertensive kidney damage. Renal arterial spasm occurs early in primary hypertension, reducing renal blood flow, presenting with mild to moderate renal arteriosclerosis, a major manifestation of renal ischemia, followed by a slowly developing tubular and glomerular function The damage eventually occurs in renal failure. The commonly used indicators of renal function evaluation of urine white