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Antidromic Reciprocating Tachycardia in Patients with Paraseptal Accessory Pathways: Importance of Critical Delay in the Reentry Circuit

DAVID C. MAN, Brian H. Sarter, Robert F. Coyne, David J. Callans, DAVID S. SCHWARTZMAN, CHARLES D. GOTTLIEB, Francis E. Marchlinski

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Abstract

Previous studies in patients with antidromic reciprocating tachycardia (ART) have observed a critical anatomic requirement (> 4 cm) between an antegrade bypass tract limb and a retrograde AV nodal limb. We report two patients with ART utilizing a paraseptal accessory pathway. In both cases, a critical degree of slow conduction within the circuit provides unusual electrophysiologic substrate to overcome the expected anatomical constraints.

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What this paper is about

Previous studies in patients with antidromic reciprocating tachycardia (ART) have observed a critical anatomic requirement (> 4 cm) between an antegrade bypass tract limb and a retrograde AV nodal limb. We report two patients with ART utilizing a paraseptal accessory pathway. In both cases, a critical degree of slow conduction within the circuit provides unusual electrophysiologic substrate to overcome the expected anatomical constraints.

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OpenAlex reports 7 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Previous studies in patients with antidromic reciprocating tachycardia (ART) have observed a critical anatomic requirement (> 4 cm) between an antegrade bypass tract limb and a retrograde AV nodal limb. We report two patients with ART utilizing a paraseptal accessory pathway. In both cases, a critical degree of slow conduction within the circuit provides unusual electrophysiologic substrate to overcome the expected anatomical constraints.

Key concepts: Medicine, Reentry, Antidromic, Reciprocating motion, Accessory pathway, Tachycardia, Cardiology, Internal medicine

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Antidromic Reciprocating Tachycardia in Patients with Paraseptal Accessory Pathways: Importance of Critical Delay in the Reentry Circuit — Research Paper | ScholarLens