arrhythmia characterized by fibrillary contractions of the ventricular muscle due to rapid repetitive excitation of myocardial fibers without coordinated contraction of the ventricle.
An arrhythmia characterized by an irregular pattern of high or low-amplitude waves that cannot be differentiated into QRS complexes or T waves. These electrocardiographic waves occur as a result of fibrillary contractions of the ventricular muscle due to rapid repetitive excitation of myocardial fibers without coordinated contraction of the ventricle. (NCI)
ICD-9-CM Volume 2 Index Entries That Refer To 427.41