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  • Title: Atrial tachycardia with slow pathway conduction mimicking typical atrioventricular nodal reentrant tachycardia.
    Author: Yamada T, Huizar JF, McElderry HT, Kay GN.
    Journal: Europace; 2007 May; 9(5):299-301. PubMed ID: 17363425.
    Abstract:
    A 68-year-old woman with palpitations underwent electrophysiologic testing. During burst atrial pacing the PR interval exceeded the RR interval and induced a supraventricular tachycardia consistent with a typical AV nodal reentrant tachycardia (AVNRT). Radiofrequency ablation of the slow pathway during the tachycardia immediately produced 2 : 1 AV conduction. After slow AV nodal pathway ablation an atrial tachycardia (AT) remained inducible with the earliest atrial activation around the HB region. Radiofrequency ablation at the site of earliest atrial activation interrupted the AT without AV block. AT originating from the HB region with slow pathway conduction may mimic typical AVNRT.
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