Angioplasty

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Atherosclerosis	Cardiac catheterization	Cholesterol producers	Coronary artery balloon angioplasty - series
Stable angina

Angioplasty is a medical procedure in which a balloon is used to open narrowed or blocked blood vessels of the heart (coronary arteries). It is not considered to be a type of surgery. See also cardiac catheterization and angiogram.

Balloon angioplasty; Coronary angioplasty; Coronary artery angioplasty; Cardiac angioplasty; PTCA; Percutaneous transluminal coronary angioplasty; Heart artery dilatation

Arteries can become narrowed or blocked by deposits called plaque. Plaque is made up of fat and cholesterol that builds up on the inside of the artery walls. This condition is called atherosclerosis.

If the blockage is not too severe, an angioplasty procedure can be used to open the artery. Traditional angioplasty involves the use of a balloon catheter -- a small, hollow, flexible tube that has a balloon near the end of it.

Before the balloon angioplasty procedure begins, you will be given some pain medicine. Occasionally, blood thinning medicines are also given to prevent formation of a blood clot.

You will lay down on a padded table. The health care provider will make a small cut on your body, usually near the groin, and insert the catheter into an artery. You will be awake during the procedure.

The health care provider will use x-rays to look at your heart and arteries. Dye will be injected into your body to highlight blood flow through the arteries. This helps reveal any blockages in the vessels leading to the heart. The balloon catheter is moved into or near the blockage, and the balloon on the end is blown up (inflated). This opens the blocked vessel and restores proper blood flow to the heart.

In almost all cases, a device called a stent is also placed at the site of narrowing or blockage in order to keep the artery open. A common type of stent is made of self-expanding, stainless steel mesh.

In a small number of cases, a special catheter with a small, diamond tip is used to drill through hard plaque and calcium that is causing the blockage. This is called rotational atherectomy.

Angioplasty may be performed to treat:

• Persistent chest pain (angina)
• Blockage of one or more coronary arteries
• Residual obstruction in a coronary artery during or after a heart attack

Review Date: 05/30/2006
Reviewed By: Alan Berger, MD, Assistant Professor, Divisions of Cardiology and Epidemiology, University of Minnesota, Minneapolis, MN. Review provided byVeriMed Healthcare Network.