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Persistent Tachycardia With a 2:1 Exit Block Within an Isolated Pulmonary Vein

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Abstract

We describe a patient with drug-resistant, paroxysmal atrial fibrillation who underwent segmental pulmonary vein (PV) isolation. After complete isolation of the right superior PV, a persistent regular tachycardia was recorded within the vein. A tachycardia focus with a cycle length of 114 ms was found 2.5 cm away from the ostium of the PV. The cycle lengths of the PV tachycardia near the ostium and near the focus were 400 ms and 200 ms, respectively, which indicates the presence of a 2:1 exit block within the vein. This PV tachycardia was completely eliminated with the application of radiofrequency energy at the focus.

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Authors and Affiliations

  1. Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Gunma, Japan

    Hiroshi Tada, Shigeto Naito & Koichi Taniguchi

  2. Yamanashi Kosei Hospital, Yamanashi, Yamanashi, Japan

    Tetsuya Asakawa

Authors
  1. Hiroshi Tada
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  2. Shigeto Naito
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  3. Tetsuya Asakawa
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  4. Koichi Taniguchi
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Correspondence to Hiroshi Tada.

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Tada, H., Naito, S., Asakawa, T. et al. Persistent Tachycardia With a 2:1 Exit Block Within an Isolated Pulmonary Vein. J Interv Card Electrophysiol 10, 73–77 (2004). https://doi.org/10.1023/B:JICE.0000011488.02388.55

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  • DOI: https://doi.org/10.1023/B:JICE.0000011488.02388.55

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