Bh. Sarter et al., BUNDLE-BRANCH REENTRY VENTRICULAR-TACHYCARDIA - AN INVESTIGATION OF THE CIRCUIT WITH RESETTING, Journal of cardiovascular electrophysiology, 7(11), 1996, pp. 1082-1085
We describe a patient with bundle branch reentry ventricular tachycard
ia with 1:1 VA conduction in whom resetting was performed while obtain
ing simultaneous recordings from the right ventricular apex (V) and Hi
s-bundle electrogram. Both the tachycardia return cycle and the V-His
interval demonstrated an increasing reset response, while the His-V in
terval demonstrated a flat reset response. These reset responses are c
onsistent with a partially excitable gap localizing to the V-His porti
on of the bundle branch reentry circuit.