Renal artery stenosis

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Renal artery stenosis
Synonyms	Renovascular hypertension
Pronounce	N/A
Specialty	N/A
Symptoms	Hypertension, chronic kidney disease, pulmonary edema
Complications	Heart failure, stroke, kidney failure
Onset	Typically in adults
Duration	Long-term
Types	N/A
Causes	Atherosclerosis, fibromuscular dysplasia
Risks	Smoking, diabetes, high cholesterol, high blood pressure
Diagnosis	Doppler ultrasound, CT angiography, MR angiography, renal arteriography
Differential diagnosis	Essential hypertension, chronic kidney disease
Prevention	N/A
Treatment	Antihypertensive medication, angioplasty, stenting, surgery
Medication	ACE inhibitors, ARBs, calcium channel blockers
Prognosis	Variable, depending on cause and treatment
Frequency	Common in older adults
Deaths	N/A

File:Assessment-of-the-kidneys-magnetic-resonance-angiography-perfusion-and-diffusion-1532-429X-13-70-S2.ogv

Renal artery stenosis

Renal artery stenosis is a medical condition involving the narrowing of one or both of the renal arteries, the blood vessels that carry blood to the kidney from the heart. This condition can lead to hypertension (high blood pressure) and kidney damage.

Causes

Renal artery stenosis can be caused by atherosclerosis, a condition where plaque builds up in the arteries, or by fibromuscular dysplasia, a condition that causes the walls of the arteries to grow abnormally.

Symptoms

In many cases, renal artery stenosis does not cause any symptoms. However, in some cases, it can cause high blood pressure that is difficult to control with medication, a decrease in kidney function, or sudden onset of pulmonary edema (fluid in the lungs).

Diagnosis

Renal artery stenosis can be diagnosed through various tests, including ultrasound, computed tomography (CT) scan, magnetic resonance angiography (MRA), or renal arteriography.

Treatment

Treatment for renal artery stenosis can include lifestyle changes, medication, or procedures to improve blood flow to the kidneys. These procedures can include angioplasty and stenting, or surgery.

See also

• Atherosclerosis
• Fibromuscular dysplasia
• Hypertension
• Kidney damage
• Pulmonary edema

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