Pitfalls and Nuances of Parahisian pacing: A revisit through an interesting case |
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Affiliation: | 1. Dept of Cardiology, RTIICS, Kolkata, India;2. Dept of Cardiology, Apollo Gleneagles Hospital, Kolkata, India;3. Dept of Cardiology, Medica Superspeciality, Kolkata, India |
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Abstract: | Parahisian pacing (PHP) is a useful maneuver during electrophysiology study of supraventricular tachycardia (SVT) especially when the tachycardia is non-sustained. Various responses during PHP can differentiate between the routes of VA conduction (VAC). In a case of WPW syndrome with orthodromic re-entrant tachycardia, we encountered various responses which one must be cognizant about to avoid erroneous conclusions. Along with para-hisian capture and only ventricular capture, simultaneous atrial capture (SAC) and pure His capture were also noted. Moreover, during pure-His capture underlying distal antegrade right bundle branch block (RBBB) was encountered making it an intriguing case. |
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Keywords: | Parahis pacing maneuver Parahisian pacing Simultaneous atrial capture |
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