Mayo Clinic Health Manager
Get free personalized health guidance for you and your family.
Get Started
close window
Housecall Archives
About our e-newsletters
- Free e-newsletters
- Mayo Clinic expertise
- We do not share your e-mail address
Housecall, our weekly general-interest e-newsletter, keeps you up to date on a wide variety of health topics with timely, reliable, practical information, recipes, blogs, questions and answers with Mayo Clinic experts and more. Our biweekly topic-specific e-newsletters also include blogs, questions and answers with Mayo Clinic experts, and other useful information that will help you manage your health.
Housecall Archives
close window
Mayo Clinic Housecall
Stay up to date on the latest health information.
What you get
- Free weekly e-newsletter
- Mayo Clinic expertise
- Recipes, tools and other helpful information
- We do not share your e-mail address
Risks
By Mayo Clinic staffAlthough angioplasty is a less invasive way to open clogged arteries, the procedure still carries some risks. The most common angioplasty risks include:
- Re-narrowing of your artery (restenosis). A major drawback of coronary angioplasty is the chance that your artery will re-narrow (restenosis) within months of the procedure. With angioplasty alone — without stent placement — restenosis happens in as many as 30 to 40 percent of cases. Stents were developed to reduce restenosis. The original bare-metal stents reduce the chance of restenosis to less than 20 percent, and the use of drug-eluting stents has reduced the risk to less than 10 percent.
- Blood clots. Blood clots can form within stents even weeks or months after angioplasty. These clots may cause a heart attack. It's important to take aspirin, clopidogrel (Plavix) and other medications exactly as prescribed to decrease the chance of clots forming in your stent. Talk to your doctor about how long you'll need to take these medications and whether or not they can be discontinued if you need surgery.
- Bleeding. You may have bleeding at the site in your leg or arm where catheters were inserted. Usually this simply results in a bruise, but sometimes serious bleeding occurs and may require blood transfusion or surgical procedures.
Other rare risks of angioplasty include:
- Heart attack. You may have a heart attack during the procedure, though large heart attacks are rare.
- Coronary artery damage. Your coronary artery may be torn or ruptured (dissected) during the procedure. These complications may require emergency bypass surgery.
- Kidney problems. The dye used during angioplasty and stent placement can cause kidney damage, especially in people who already have decreased kidney function. If you are at increased risk, your doctor may give you a medication to try to protect your kidneys.
- Stroke. During angioplasty, blood clots that may form on the catheters can break loose and travel to your brain. Blood thinners are given during the procedure to reduce this risk. A stroke can also occur if plaques in your heart are dislodged when the catheters are being threaded through the aorta.
- Abnormal heart rhythms. You heart may get irritated during the procedure and beat too quickly or too slowly. These heart rhythm problems are usually short-lived, but sometimes medications or a temporary pacemaker is needed.
References
- Angioplasty. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/Angioplasty/Angioplasty_All.html. Accessed Oct. 31, 2008.
- Stent procedure. American Heart Association. http://www.americanheart.org/presenter.jhtml?identifier=4721. Accessed Oct. 31, 2008.
- Aroesty JM, et al. Patient information: Percutaneous coronary intervention. http//www.uptodate.com/index. Accessed Oct. 23, 2008.
- Cutlip D, et al. General principles of the use of intracoronary stents. http://www.uptodate.com/index. Accessed Oct. 23, 2008.
- Carrozza JP, et al. Periprocedural complications of percutaneous coronary intervention. http://www.uptodate.com/index. Accessed Oct. 23, 2008.
- King SB, et al. 2007 update of the ACC/AHA/ SCAI 2005 guideline update for percutaneous coronary intervention. Circulation. 2008;117:261.
- Hannan EL. Drug-eluting stents vs. coronary-artery bypass grafting in multivessel coronary disease. New England Journal of Medicine. 2008;358:351.
- Levin T, et al. Intracoronary stent restenosis. http://www.uptodate.com/index. Accessed Oct. 23, 2008.
