1.It is rarely to see the kidney compensated rise ,but the renal blood most are enhance
2.Single renal atrophy cannot cause high blood pressure ,such as congenital malnutrition 、renal tuberculosis 、chronic pyelonephritis without high blood pressure ,but the renal artery stenosis by activation of renin-angiotensin-alcohol ketone fixation system and make the plasma renin levels ,lead to high blood pressure .
3.It is rarely to see the renal artery stenosis accompany with limb dorsalis pedis artery pulse or disappear .
4.Postoperative renal artery stenosis by DSA expansion ,the kidney blood flow obvious increase ,the kidney obvious increase than before .Can see part atrophy kidney is reversible .
5.Renal artery serious stenosis and less than blood flow ,but through the collateral circulation will let the kidney maintain a good supply of blood ,cannot cause the kidney serious atrophy .