Video - Renal artery stenosis

Renal artery stenosis is a condition that occurs when the artery that carries blood to the kidney becomes more narrow, which reduces the amount of blood that the kidney receives. This can lead to high blood pressure because the kidney senses the low blood pressure due to its impaired blood supply, and responds by releasing the hormone renin which increases blood pressure - ultimately causing systemic hypertension. Renal artery stenosis also leads to reduced kidney function and other serious health complications such as kidney atrophy. Treatment for renal artery stenosis typically involves medications to control blood pressure, lifestyle changes, and procedures to open the narrowed or blocked arteries.