![]() |
![]() |
|
Health Topics for Cardiovascular Health |
Atrial fibrillation
Atrial fibrillation is an abnormality of the heart rhythm. Normally, the atria, or upper chambers of the heart, contract in a steady rhythm. This produces a regular heartbeat. When atrial fibrillation is present, the atria contract very rapidly and erratically. The heart may beat as many as 350 to 400 times a minute. The pulse is irregular. This may reduce the volume of blood pumped by the heart. In most cases, atrial fibrillation is associated with heart disease or thyroid disorders. Symptoms include:
Many people have no symptoms at all. If untreated, atrial fibrillation can lead to serious consequences such as a stroke or heart failure. In many cases, the heart's normal rhythm may be restored with emergency electrical stimulation or medication. The primary risk from atrial fibrillation is a stroke. Small blood clots can form in the heart and pass through the bloodstream to the brain and cause a stroke. Treatment programs may be used to prevent the blood from forming blood clots. Often, patients with atrial fibrillation are placed on a blood thinning medication to prevent strokes. A variety of medications are used to control the heart rhythm in atrial fibrillation. The most common is Digoxin (di-jok-sin)." Be sure you understand all the risks and responsibilities involved before you begin any long-term drug treatment program. Last Reviewed 2005 Disclaimer: This content is reviewed periodically and is subject to change as new health information becomes available. The information provided is intended to be informative and educational and is not a replacement for professional medical evaluation, advice, diagnosis or treatment by a healthcare professional. HIL File CARD4305.RF2 VRS# 4305 Data Version 7.0 Copyright 2000, 2002 McKesson Health Solutions LLC. All rights reserved.
|
||||
| Last modification date:
Fri Sep 26 14:20:06 2008
|
|||||