arrhythmias according to site of the defect

Last reviewed 01/2018

Cardiac arrhythmias may be due to:

  • a defect in the atria or the atrioventricular conduction system, in which case they are termed supraventricular arrhythmias

  • a defect in the ventricles, in which case they are termed ventricular arrhythmias

  • pre-excitation and re-entrant arrhythmias where the abnormality is an extra conduction pathway between the atria and the ventricles