Evaluation of Segmental Left Ventricular Dysfunction and Intraventricular Dyssynchrony after Pulmonary Vein Isolation in Patients with Chronic Atrial Fibrillation Using 2D Speckle Tracking Echocardiography

• Matsuda Hisao

  Division of Cardiology, Kawasaki Municipal Tama Hospital

• Harada Tomoo

  Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine

• Soejima Kyoko

  Division of Cardiology, Kawasaki Municipal Tama Hospital

• Ishikawa Yukako

  Division of Cardiology, Kawasaki Municipal Tama Hospital

• Nishio Satoru

  Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine

• Takano Makoto

  Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine

• Miyake Fumihiko

  Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine

抄録

Introduction: Effect of pulmonary vein isolation (PVI) on left ventricular (LV) function was unclear in patients with chronic atrial fibrillation (CAF). The aim was to evaluate segmental LV function and intraventricular dyssynchrony using speckle tracking imaging after PVI in patients with CAF. Methods: Thirty three patients with CAF could be restored to sinus rhythm by PVI under CARTO-merge guidance and be maintained sinus rhythm after PVI. Echocardiography was performed before and 4.1±2.1 months after PVI. The measurements from conventional echocardiography and speckle tracking imaging were analyzed. Radial strain (RS) was calculated for each 6 standard segmental LV region in left midventricular short axis images respectively. Time difference (TD) in peak anterior wall-to-posterior wall strain was also calculated. Results: In all segment (anteroseptal, anterior, lateral, posterior, inferior, and septal region), RS revealed a significant increase after PVI respectively (P<0.001). As a conventional parameter, ejection fraction was 60.2±10.7% before PVI and 67.1±8.8% after PVI. There was significant improvement (P<0.01). TD was 58.1±43.9 ms before PVI and 31.2±28.8 ms after PVI. There was significant improvement after PVI (P<0.001). Conclusion: Speckle tracking imaging quantified LV segmental systolic function. LV function and intraventricular dyssynchrony could be improved by PVI significantly.

収録刊行物

• Journal of Arrhythmia

  Journal of Arrhythmia 27 (Supplement), OP12_4-, 2011

  日本不整脈学会

キーワード

• atrial fibrillation
• pulmonary vein isolation
• speckle tracking echocardiography

詳細情報

• CRID: 1390282680222552192
• NII論文ID: 130002130481
• DOI: 10.4020/jhrs.27.op12_4
• ISSN: 18832148
• ISSN: 18804276
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可