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Renal Artery Stenosis
Definition
Renal artery stenosis (RAS) is the narrowing of one or both arteries that carry blood to the two kidneys. "Renal" means "kidney" and "stenosis" means "narrowing"
Casue of Renal Artery Stenosis
The following are some of the casue of Renal artery stenosis:
- Atherosclerosis usually those with a sudden onset of hypertension at age of 50- due to high cholesterol
- High blood pressure
- Age
- Smoking
- Diabetes
- Peripheral vascular diseases
- Fibromuscular dysplasia
- arteritis
- renal artery aneurysm
- extrinsic compression (e.g., neoplasms),
- neurofibromatosis
- Fibrous bands
Symptoms of Renal Artery Stenosis
- Asymptomatic
- New onset of high blood pressure in a patient over 55 years old
- Presence of a bruit (sound or murmur heard with a stethoscope) in the abdomen (e.g., groin), neck, or other area
- Sudden worsening of high blood pressure in a patient whose blood pressure had been well controlled, especially if the patient is over 60
Complictions of Renal Artery Stenosis
- Deterioration in renal function may develop .
- Flash Pulmonary edema (sudden left ventricular heart failure).
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