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Complications
By Mayo Clinic staffSometimes atrial fibrillation can lead to the following complications:
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Stroke. In atrial fibrillation, the chaotic rhythm may cause blood to pool in your atria and form clots. If a blood clot forms, it could dislodge from your heart and travel to your brain. There it might block blood flow, causing a stroke.
The risk of stroke in atrial fibrillation depends on your age (you have a higher risk as you age) and on whether you have high blood pressure, diabetes, or a history of heart failure or previous stroke, and other factors. Medications such as blood thinners can greatly lower your risk of stroke or damage to other organs caused by blood clots.
- Heart failure. Atrial fibrillation, especially if not controlled, may weaken the heart, leading to heart failure — a condition in which your heart can't circulate enough blood to meet your body's needs.
- Atrial fibrillation. American Heart Association. http://www.americanheart.org/presenter.jhtml?identifier=4451. Accessed Jan. 20, 2009.
- Atrial fibrillation and flutter. Heart Rhythm Society. http://www.hrspatients.org/patients/heart_disorders/atrial_fibrillation/default.asp. Accessed Jan. 20, 2009.
- Atrial fibrillation. National Heart Lung and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/af/af_all.html. Accessed Jan. 20, 2009.
- Thomas MC, et al. Blood pressure control and the risk of incident atrial fibrillation. American Journal of Hypertension. 2008;21:1111.
- ACC/AHA/ESC Writing Committee members. 2006 guidelines for the management of patients with atrial fibrillation. Europace. 2006;8:651.
- Singer DE, et al. Antithrombotic therapy in atrial fibrillation: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition). Chest. 2008;133:546S.
- Podrid PJ. Patient information: Cardioversion. http://www.uptodate.com/index. Accessed Jan. 20, 2009.
- Cappato R, et al. Worldwide survey on the methods, efficacy, and safety of catheter ablation for human atrial fibrillation. Circulation. 2005;111:1100.
- Voeller RK, et al. The effects of the Cox maze procedure on atrial function. Journal of Thoracic and Cardiovascular Surgery. 2008;136:1257.
- FDA approves first ablation catheters for the treatment of atrial fibrillation. U.S. Food and Drug Administration. http://www.fda.gov/bbs/topics/NEWS/2009/NEW01953.html. Accessed Feb. 6, 2009.
