Definitions of arrhythmia
  1. noun
    an abnormal rate of muscle contractions in the heart
    synonyms: cardiac arrhythmia
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    abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block
    cantering rhythm, gallop rhythm
    cardiac rhythm characterized by the presence of an extra sound; can indicate a heart abnormality
    atrial fibrillation
    fibrillation of the muscles of the atria of the heart
    abnormally slow heartbeat
    Adams-Stokes syndrome, Stokes-Adams syndrome, atrioventricular block, heart block
    recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat
    PVC, premature ventricular contraction
    irregularity of cardiac rhythm; recurrent occurrences can be a precursor of ventricular fibrillation
    abnormally rapid heartbeat (over 100 beats per minute)
    ventricular fibrillation
    fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest
    type of:
    cardiopathy, heart disease
    a disease of the heart
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