Figure 206-1

Intracardiac recordings from the specialized conduction system in the atrioventricutar (AV) junction. The recording of various electrograms along the right side of the interventricutar septum with gradual withdrawal of the catheter across the tricuspid valve is shown. The intracardiac recordings are labeled. Numbers 1 through 5 refer to intracardiac location of catheters along with corresponding electrogram. CS = coronary sinus; SN = sinus node; Ao = aorta; MS = membranous septum; AVN = atrioventricular node; HB = His bundle RBB = right bundle branch; A = atrial deflection; H and RB = His and right bundle potentials; V = ventricular deflection.

(From Gallagher and Damato.Reproduced with permission from the publisher and authors.)

click to close window