How Is Renal Artery Stenosis Treated?

Diuretics

Diuretics or medications that help the body rid itself of excess water and salt through the urinary tract are often used to treat individuals with renal artery stenosis. Diuretics remove fluid from the blood and send it through the kidneys for elimination. This elimination occurs because diuretics increase the body's salt output, and the salt takes extra fluids with it when it exits the body. This mechanism reduces the amount of total fluid flowing through the blood vessels. The reduction in total fluid causes a decrease in pressure inside of the blood vessels. Elimination of extra fluids and salt will keep the blood pressure throughout the body low, including in the renal arteries. Diuretics also allow the heart to pump blood more efficiently throughout the body, including pumping blood to the kidneys. Diuretics on their own are often not enough to treat hypertension precipitated from renal artery stenosis, and they are usually combined with other medications like ACE inhibitors that work to dilate the blood vessels.

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