Supraventricular Tachycardia with Left Aberrant Conduction due to Retrograde Invasion into the Left Bundle Branch

Wellens, H. J. j. M.D.
Durrer, D. M.D.

From the Department of Cardiology and Clinical Physiology, University of Amsterdam, Wilhelmina Gasthuis, Amsterdam, The Netherlands.

Circulation 38(3):p 474-479, September 1968.

A description is given of a patient with an atrioventricular nodal tachycardia with left aberrant conduction changing into nonaberrant conduction after a ventricular premature beat. Functional left bundle-branch block by retrograde invasion into the left bundle branch is thought to be responsible for this phenomenon.