competitive atrioventricular (AV) dissociation

Competitive AV dissociation occurs secondary to an increased rate of AV nodal, His bundle or ventricular depolarization exceeding the rate of sinus or atrial discharge. This rhythm is generally benign. It is important to distinguish this rhythm from 3rd degree heart block.

General

atrioventricular (AV) dissociation premature electrocardiography complex

References

Manual of Medical Therapeutics, 28th ed, Ewald & McKenzie (eds), Little, Brown & Co, Boston, 1995, pg 140