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Laser balloon ablation in patients with a left common pulmonary vein.
  • +6
  • Shinichi Tachibana,
  • Kaoru Okishige,
  • Koji Sudo,
  • Takatoshi Shigeta,
  • Yuichiro Sagawa,
  • Manabu Kurabayashi,
  • Yasuteru Yamauchi,
  • Masahiko Goya,
  • Tetsuo Sasano
Shinichi Tachibana
Yokohama City Minato Red Cross Hospital

Corresponding Author:[email protected]

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Kaoru Okishige
Yokohama-city Port Red Cross Hospital
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Koji Sudo
Yokohama City Minato Red Cross Hospital
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Takatoshi Shigeta
Yokohama Bay Red Cross Hospital
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Yuichiro Sagawa
Yokosuka Kyousai Hospital
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Manabu Kurabayashi
Yokohama-city Port Red Cross Hospital
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Yasuteru Yamauchi
Yokohama-city Bay Red Cross Hospital
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Masahiko Goya
Tokyo Medical and Dental University Hospital
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Tetsuo Sasano
Tokyo Medical and Dental University
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Abstract

Background: Pulmonary vein isolation (PVI) with a balloon-based visually guided laser ablation (VGLA) is regarded as a useful therapeutic tool for treating atrial fibrillation (AF). The clinical efficacy of a VGLA has never been fully investigated in patients with a left common pulmonary vein (LCPV). Objective: We investigated the procedural safety as well as clinical usefulness of VGLA in patients with an LCPV. Methods: This study consisted of 130 consecutive patients who underwent VGLA of de novo non-valvular paroxysmal AF. Results: Eleven patients (8.5%) had an LCPV (ostium maximal average diameter: 27.5 ± 4.9 mm, ostium minimal average diameter: 17.7 ± 3.5 mm). Nine out of 11 (81.8%) LCPVs were successfully occluded and isolated at the ostium with a VGLA guided PVI. The ablation procedure time was significantly shorter in the patients with than without an LCPV (61.5 ± 15.4 vs. 86.9 ± 32.9 min, p = 0.01). There was no difference regarding the atrial tachyarrhythmia recurrence between those with and without an LCPV (p = 0.18). A total of fifteen patients underwent a redo procedure, but reconnections were not observed in any of the LCPV patients. Conclusion: The VGLA guided PVI was a useful therapeutic tool even in patients with an LCPV. The presence of an LCPV was not associated with any atrial tachyarrhythmia recurrence.