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Arrhythmia Center

Arrhythmia means abnormal heart rhythm. These rhythms may be too slow (bradycardia) or too fast (tachycardia). The heart may quiver instead of beating, as with ventricular fibrillation. Signals that tell the heart to beat may become blocked, as with heart block, bundle branch block or sick sinus syndrome.

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Copyright (c) 2000-2008 iVillage Inc. All rights reserved. The information provided on this site is intended for your general knowledge only and is not a substitute for professional medical advice or treatment for specific medical conditions. You should not use this information to diagnose or treat a health problem or disease without consulting with a qualified healthcare provider. Please consult your healthcare provider with any questions or concerns you may have regarding your condition.