Jumping across the gap - a series of atrial extrastimuli

Mahadeva Swamy; Deepak Katyal; Kaushal Raja J

doi:10.1016/s0972-6292(16)30846-4

Jumping across the gap - a series of atrial extrastimuli

Indian Pacing Electrophysiol J. 2015 Apr 1;15(1):73-5. doi: 10.1016/s0972-6292(16)30846-4. eCollection 2015 Jan-Feb.

Authors

Mahadeva Swamy¹, Deepak Katyal¹, Kaushal Raja J¹

Affiliation

¹ Department of Cardiology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry.

Abstract

The "gap phenomenon" is an interesting phenomenon in electrophysiology arising from the differences in refractory periods at two or more levels of the atrioventricular (AV) conduction system. We present a patient with dual AV nodal physiology in whom the AH jump mediates the gap phenomenon. We also briefly discuss the other mechanisms of gap phenomenon that have been described in this setting.

Keywords: Atrial Extrastimuli; gap phenomenon.