Electrocardiographic Characteristics of Fasciculoventricular Pathways: Analysis of Five Cases

DOI DOI 参考文献36件 オープンアクセス
  • Saito Akihiro
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Kaneko Yoshiaki
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Nakajima Tadashi
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Irie Tadanobu
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Ota Masaki
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Kato Toshimitsu
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Iijima Takafumi
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Ito Toshio
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Manita Mamoru
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine
  • Kurabayashi Masahiko
    Department of Medicine and Biological Science, Gunma University Graduate School of Medicine

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Introduction: Fasciculoventricular (FV) accessory pathways are rare variants of preexcitation syndrome and published data on the ECG of FV pathways are limited. The purpose of this study was to analyze the electrocardiographic characteristics of FV pathways.<BR>Methods: We enrolled 5 patients (mean age, 26.8±15.1 years; range 15–49 years, 2 male) with FV pathways which were diagnosed based on the standard electrophysiologic criteria. According to the standard criteria for the ECG classification of manifest Wolff-Parkinson-White (WPW) syndrome, the ECGs were classified as type A, B or C. The polarity of delta wave in each lead of each patient was divided into positive, flat or negative and was applied to the stepwise ECG algorithms of atrioventricular accessory pathway previously published by Fitzpatrick, Arruda and Iturralde.<BR>Results: Type A was found in one patient (Case No 4), type B in one patient (Case No 5) and type C in three patients (Case No 1, 2 and 3). Based on stepwise ECG algorithm, all cases corresponded to the polarity of the delta wave in patients with right anteroseptal, posteroseptal, right anterolateral or left anterolateral AP. In all three cases exhibiting type C, the polarity of delta wave in lead V2 was flat.<BR>Conclusions: ECGs of FV pathways may be misidentified as ECG of WPW syndrome, and may present with any preexcitation pattern of type A, B or C.

収録刊行物

  • Journal of Arrhythmia

    Journal of Arrhythmia 26 (3), 181-188, 2010

    一般社団法人日本不整脈心電学会

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