Angioplasties are considered procedures, not surgeries. Major complications are uncommon, but as with all medical procedures, there are a number of possible risks and complications.

The risk involved in an angioplasty also depends on where in the body the procedure is performed. An angioplasty in the carotid arteries can pose the very serious risk of embolisms: iny blood clots, traveling to the smaller blood vessels of the brain, becoming lodged there, and causing a stroke. For this reason, emboli protection devices have been created. These filtering devices are coated with anticlotting medication and fitted with an umbrella-like filter on one end. The filter captures the tiny emboli while the device's tiny holes permit blood to flow through. At the end of the stenting procedure, the filter and its captured debris are removed from the artery.

Other possible risks and complications of angioplasty include:

• allergic reaction to the iodine-based dye,
• bleeding or infection at the catheter insertion site,
• damage to a heart valve or blood vessel,
• kidney failure (higher risk in those with existing kidney problems),
• irregular heart beats (arrhythmias),
• blockage of blood flow to an area of the heart.

More on this topic

When Arteries Become Blocked (VIDEO)
Watch an Angioplasty Procedure (VIDEO)
Blood Supply to the Heart
Atherosclerosis & Your Heart
Detecting Blockages
Angiogram Imaging
How Angioplasty Works
Angioplasty Risks & Complications
Preventing an Angioplasty
3D Heart

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Aneurysm and Stent, Angioplasty, Arrhythmia, Cardiovascular Continuum, Cholesterol and Atherosclerosis, Coronary Bypass Surgery, Heart Attack and Angina, Hypertension, Stroke, Thrombosis and Embolism, Women and Cardiovascular Health