Catheter Ablation In The Vicinity Of The Proximal Conduction System: Your Eyes Cannot See What Your Mind Does Not Know

The differential of narrow QRS complex tachycardias without constant V-A conduction includes atrio-ventrcular nodal reentry tachycardia (AVNRT), automatic junctional tachycardia, V-N tachycardia, V-H tachycardia, and “upper septal” fascicular VT. The mode of initiation and termination, response to pacing, activation sequence along the His bundle-right bundle-left bundle as well as HV interval compared between sinus rhythm and tachycardia are key parameters in determining the exact mechanism to plan catheter ablation.

Source: Heart Rhythm - January 9, 2019 Category: Cardiology Authors: Jason S. Bradfield, Osamu Fujimura, Noel G. Boyle, Kalyanam Shivkumar Source Type: research