Para‐Hisian pacing: The eyes see what the mind knows
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A young male presented with pre‐excited atrial fibrillation. During an electrophysiology study, preexcitation suggestive of a pathway in posteroseptal location was confirmed but no tachycardia was inducible. Para‐Hisian pacing was done during sinus rhythm. Is there retrograde conduction through the accessory pathway?
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[2] H. Nakagawa,et al. Para-Hisian pacing: useful clinical technique to differentiate retrograde conduction between accessory atrioventricular pathways and atrioventricular nodal pathways. , 2005, Heart rhythm.