Demonstration of anatomical reentrant tachycardia circuit in verapamil-sensitive atrial tachycardia originating from the vicinity of the atrioventricular node

Heart Rhythm : the Official Journal of the Heart Rhythm Society
Hiroshige YamabeHisao Ogawa

Abstract

The anatomical location of the reentry circuit in verapamil-sensitive atrial tachycardia originating from the vicinity of atrioventricular node (V-AT) is not well clarified. To define the reentry circuit of V-AT. In 17 patients with V-AT, rapid atrial pacing at a rate 5 beats/min faster than the tachycardia rate was delivered from multiple sites of the right atrium (RA) during tachycardia to define the direction of the proximity of the slow conduction area of the reentry circuit. After identification of manifest entrainment and orthodromic capture of the earliest atrial activation site (EAAS), radiofrequency energy was delivered starting at a site 2 cm away from the EAAS in the direction of the pacing site. Radiofrequency energy application site was then gradually advanced toward EAAS until the termination of tachycardia to define the entrance of the slow conduction area. The EAAS was orthodromically captured by pacing delivered from one of the high anterolateral RA (n = 6), high posteroseptal RA (n = 9), and RA appendage (n = 2). Radiofrequency energy delivery to the site, 10.1 ± 2.8 mm away from the EAAS, terminated V-AT immediately after the onset of delivery (2.9 ± 1.0 seconds). The successful ablation site located outside ...Continue Reading

References

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Jun 23, 2009·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Hiroshige YamabeHisao Ogawa
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Citations

Jan 21, 2015·Journal of cardiology·Shinsuke MiyazakiYoshito Iesaka
Jun 22, 2016·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Mitsunori MaruyamaWataru Shimizu
Jan 19, 2019·Journal of Cardiovascular Electrophysiology·Kaoru OkishigeKenzo Hirao
Feb 16, 2019·Journal of Cardiovascular Electrophysiology·Ken Okumura
Jan 14, 2020·Journal of the American Heart Association·Hiroshige Yamabe, Yoshiya Orita
Jan 12, 2021·Journal of Cardiovascular Electrophysiology·Koji YasumotoJun Tanouchi
Apr 1, 2016·JACC. Clinical Electrophysiology·Steven M Markowitz
Jun 4, 2021·Circulation Journal : Official Journal of the Japanese Circulation Society·Akihiko NogamiUNKNOWN JCS/JHRS Joint Working Group
Aug 14, 2021·Journal of Arrhythmia·Akihiko NogamiUNKNOWN JCS/JHRS Joint Working Group
Sep 28, 2021·Journal of Cardiovascular Electrophysiology·Shunsuke UetakeYasushi Miyauchi

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