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Novel analysis of ventriculoatrial interval prolongation during a narrow QRS tachycardia using a right atrial nondecremental-midseptal accessory pathway

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Ventriculoatrial (VA) interval prolongation during an orthodromic atrioventricular (AV) reentrant tachycardia (AVRT) with appearance of a bundle branch block (BBB) ipsilateral to an AV accessory pathway (AP) is well known… Click to show full abstract

Ventriculoatrial (VA) interval prolongation during an orthodromic atrioventricular (AV) reentrant tachycardia (AVRT) with appearance of a bundle branch block (BBB) ipsilateral to an AV accessory pathway (AP) is well known as Coumel’s sign. Otherwise, VA interval over a slant type of AP different from a perpendicular type along an annulus is considered to be changeable depending on ventricular pacing sites.

Keywords: accessory pathway; interval prolongation; tachycardia; ventriculoatrial interval

Journal Title: HeartRhythm Case Reports
Year Published: 2021

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