arrhythmia
- Definition
- Any disturbances of the normal rhythmic beating of the heart or myocardial contraction. Cardiac arrhythmias can be classified by the abnormalities in heart rate, disorders of electrical impulse generation, or impulse conduction.
- Definition Source
- Medical Subject Headings 2012
- Used For
- cardiac arrhythmia
- cardiac dysrhythmia
- Spanish
- arritmia
An official website of the United States government.