Renal artery stenosis is a renal vascular disease caused by a variety of etiologies, which is clinically manifested as renal vascular hypertension and ischemic nephropathy. Renal vascular hypertension refers to renal artery stenosis or atresia caused by atherosclerosis, arteritis, myofibrillar dysplasia, etc., resulting in high renin secretion and thus hypertension. What conditions should be suspected as renal vascular hypertension? 1.Sudden onset of hypertension before the age of 30 or after the age of 50. 2, Hypertension develops rapidly, with very high blood pressure and poor results from taking many antihypertensive drugs. 3, accompanied by a tendency of deteriorating renal function. Of course, there are many other manifestations, and the ones introduced here are just a few of the main features. If any of these features are met, you should suspect that it may be renal vascular hypertension, and if 2 of them are met, then the possibility of renal vascular hypertension is high. If renal vascular hypertension is suspected, where should I go to confirm the diagnosis? Of course you should come to the vascular surgery department for examination. This is because this disease is beyond the scope of traditional medical hypertension and is vascular in nature. Generally speaking, an ultrasound of the renal arteries is needed to initially understand whether the renal arteries are narrowed and whether there are abnormal flow rates. Sometimes, due to obesity, the ultrasound may not be clear, or the specific situation of the renal artery needs to be further understood, then it is necessary to do further renal artery MRI. Generally, the MRI can clearly see whether the renal artery has stenosis or atresia, as well as the specific extent and severity of the lesion, to decide the next treatment plan. How to treat renal vascular hypertension if it is diagnosed? If a renal artery lesion causing hypertension is identified, a normal renal artery needs to be reconstructed in order to treat it. In the past, when the interventional technology was not developed, renal artery bypass was done to solve this problem, the surgery was relatively large and risky, but the results were not bad. In recent years, due to the rapid development of vascular surgery interventional technology in China, most of the renal artery stenosis can be solved by placing stents, which is a minimally invasive treatment with similar surgical results as traditional surgery, while the safety is greatly improved, making it possible for many elderly patients who could not receive surgery before to have the opportunity to be treated. Current statistics show that if the diagnosis is clear, then the probability of patients being able to benefit from the treatment is greater than 80%. Through the surgery, normal blood flow is restored to the kidneys and renin secretion will return to normal. Many patients thus have their blood pressure reduced to normal and have completely thrown off the pill jar, and some other patients, although they have not achieved such complete results, have reduced the amount of antihypertensive drugs, or their blood pressure, which was not controlled by antihypertensive drugs, can now be controlled. Can I still have surgery for hypertension if my blood pressure is very high and I am old? Any treatment has both risks and benefits, including medication as well, and the older you are, the higher the risk of course. Therefore, the doctor’s duty is to compare the possible risks and benefits faced by the patient in various treatment methods by carefully and comprehensively understanding the overall situation of the patient, and then carefully choose an appropriate treatment plan to recommend to the patient based on his or her experience and knowledge.