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Arterial insufficiency

 

Arterial insufficiency is any condition that slows or stops the flow of blood through your arteries. Arteries are blood vessels that carry blood from the heart to other places in your body.

Causes

One of the most common causes of arterial insufficiency is atherosclerosis or "hardening of the arteries." Fatty material (called plaque) builds up on the walls of your arteries. This causes them to become narrow and stiff. As a result, it is hard for blood to flow through your arteries.

Blood flow may be suddenly stopped due to a blood clot. Clots can form on the plaque or travel from another place in the heart or artery (also called embolus).

Symptoms

 

Symptoms depend on where your arteries become narrowed:

  • If it affects your heart arteries, you may have chest pain or a heart attack.
  • If it affects your brain arteries, you may have a stroke.
  • If it affects the arteries that bring blood to your legs, you may have frequent leg cramping when you walk.
  • If it affects the arteries in your belly area, you may have pain after you eat.

 

 

References

Hansson GK, Hamsten A. Atherosclerosis, thrombosis, and vascular biology. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 70.

Libby P. The vascular biology of atherosclerosis. In: Mann DL, Zipes DP, Libby P, Bonow RO, Braunwald E, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 10th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 41.

 
  • Arteries of the brain

    Arteries of the brain - illustration

    The internal carotid arteries and the vertebral arteries supply blood to the brain.

    Arteries of the brain

    illustration

  • Developmental process of atherosclerosis

    Developmental process of atherosclerosis - illustration

    The development of arterial atherosclerosis may occur when deposits of cholesterol and plaque accumulate at a tear in the inner lining of an artery. As the deposits harden and occlude the arterial lumen, blood flow to distant tissues decreases and a clot may become lodged, completely blocking the artery.

    Developmental process of atherosclerosis

    illustration

    • Arteries of the brain

      Arteries of the brain - illustration

      The internal carotid arteries and the vertebral arteries supply blood to the brain.

      Arteries of the brain

      illustration

    • Developmental process of atherosclerosis

      Developmental process of atherosclerosis - illustration

      The development of arterial atherosclerosis may occur when deposits of cholesterol and plaque accumulate at a tear in the inner lining of an artery. As the deposits harden and occlude the arterial lumen, blood flow to distant tissues decreases and a clot may become lodged, completely blocking the artery.

      Developmental process of atherosclerosis

      illustration

    A Closer Look

     

      Talking to your MD

       

        Self Care

         

        Tests for Arterial insufficiency

         

         

        Review Date: 11/1/2015

        Reviewed By: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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