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- W2321762047 abstract "非侵襲的に心室性異所性興奮発生部位ventricular ectopic focus (VEF) を推定するために, 心室頻拍29症例から心室頻拍時と心室性期外収縮時, 及び心室電気刺激時に延べ70例の体表面電位図を記録し, カテーテルを用いた心内膜マッピング法により発生部位を確認して, 部位毎の電位図の特徴を検討した.その結果QRS早期に電位が-0.5mVを越えた時点での極小の位置が最もよく心内膜側のVEFを反映し, 解剖学的分割区域に応じて, 右室由来の興奮では前胸部中央と上方並びに右前胸部下方に段階的に分布し, 一方左室由来の興奮では左前胸部下方を中心として右前胸部上方と右背部を除く全領域に放射状に分布した.左室中隔由来の興奮では, 左室前壁或いは後壁由来の興奮と同様な領域に極小が分布した.心室中隔並びに前壁から発生する興奮では, QRS早期の極小の位置から心室起源の左右を鑑別できなかったが, QRS末期の極大の位置により判定できた.以上の指標を用いて体表面電位図により, 左右心室を8~13領域に分割してVEFを推定しうると考えた." @default.
- W2321762047 created "2016-06-24" @default.
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- W2321762047 date "1986-01-01" @default.
- W2321762047 modified "2023-09-25" @default.
- W2321762047 title "The presumption of ventricular ectopic focus by body surface mapping. Focusing on endocardial origin." @default.
- W2321762047 doi "https://doi.org/10.5105/jse.6.67" @default.
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