Hypertension treatment in renal artery stenosis
It occurs more commonly in older people with atherosclerosis, leading to narrowing of the channel where the blood flows.
Hypertension caused by RAS is called secondary hypertension. This means that, unlike essential or primary hypertension the most common form of high blood pressure, which does not have a specific known causesecondary hypertension does have a specific cause.
In some cases, diagnosing and treating RAS can result in decreasing or eliminating the need to take medication for hypertension. The narrowing of the kidney arteries in RAS is usually due to atherosclerosis; more rarely it can be caused by abnormal growth of tissue within the wall of the artery.
The latter condition, called fibromuscular dysplasia, is potentially curable and is more common in women and younger age groups but can also occur later in life. When atherosclerosis is the cause of RAS, it is especially important to be evaluated and treated for related diseases of the heart and brain, since they are also susceptible to narrowed arteries.
Megjelenés éve: Kivonat: Antihypertensive and renoprotective treatment with angiotensin-converting enzyme inhibitor ACEI or angiotensin II receptor blocker is indicated in almost all chronic renal failure patients. However, this treatment is not widely used for renal allograft recipients mainly because of the potential side effects, including a decrease in renal function as well as onset of hyperkalemia or anemia. Herein we investigated the effects of ACEI introduction to hypertensive renal transplantation patients who did not display renal artery stenosis. At least 2 months after transplantation, we exchanged amlodipine 5 mg for either ramipril or perindopril 5 mg in 25 patients who were free of renal artery stenosis as determined indirectly by measuring the renal arterial resistance index with the noninvasive, inexpensive Doppler ultrasound method.
Atherosclerosis in those organs can lead to heart attack or stroke. Rarely, a person may have symptoms related to high blood pressure such as fatigue, headache, or dizziness. Doppler ultrasound measures the speed of the blood flow within the arteries to the kidney.
Renal Artery Stenosis
Magnetic resonance arteriogram and computed tomographic angiography are imaging studies that use contrast medium to produce a 3-dimensional image of the kidney and its blood vessels. This may require 3 or more different drugs.
Don't smoke. Control diabetes if it is present. Control cholesterol, taking medications if necessary. Renal artery angioplasty and stenting are only done if blood pressure cannot be controlled with medications or if blood tests indicate a significant worsening of kidney function.