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A case of manifest WPW syndrome with RR alternence during wide QRS tachycardia
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- Ozawa Mahito
- Division of Cardiology, Department of Internal Medicine, Iwate Medical University School of Medicine
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- Komatsu Takashi
- Division of Cardiology, Department of Internal Medicine, Iwate Medical University School of Medicine
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- Tachibana Hideaki
- Division of Cardiology, Department of Internal Medicine, Iwate Medical University School of Medicine
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- Sato Yoshihiro
- Division of Cardiology, Department of Internal Medicine, Iwate Medical University School of Medicine
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- Kunugita Fusanori
- Division of Cardiology, Department of Internal Medicine, Iwate Medical University School of Medicine
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- Nakamura Motoyuki
- Division of Cardiology, Department of Internal Medicine, Iwate Medical University School of Medicine
Bibliographic Information
- Other Title
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- RR alternanceを伴うwide QRS tachycardiaを認めた顕性WPW症候群の1例
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Description
症例は, 56歳, 男性. 主訴は動悸. 30歳頃の健診でWPW症候群を指摘された. 2010年2月の24時間心電図で, 心拍数153回/分のRR alternanceを伴うwide QRS頻拍を認め当院紹介となった. 同年4月に心臓電気生理学検査を施行したところ, 左室側壁に順行性副伝導路を認めた. 右室心尖部頻回刺激法では, 刺激頻度の増加に伴い, 逆行性最早期心房興奮部位は, 減衰伝導を有するヒス束から, それを有しない左室側壁に移行した. 高位右房早期刺激法では基本周期600msec, 連結期310msecでwide QRS頻拍が誘発された. QRS波形は洞調律時のδ波極性に一致し, いずれも副伝導路を順行し, ヒス束心房波を逆行性最早期心房興奮部位とする368msec(N)と498msec(N+1)の頻拍周期を交互に繰り返す頻拍を間歇性に認めた. RR alternanceを伴う頻拍は, AV間隔は190msecと一定であったが, VA間隔は186msec(N), 284msec(N+1)と変化していた. 以上からRR alternanceを伴う逆行性房室回帰性頻拍と診断し, 高周波カテーテル心筋焼灼術により左室側壁副伝導路の離断に成功した. その後, 高位右房早期刺激法で房室結節3重伝導路の存在と, 右室頻回刺激でintermediateならびにslow pathwayの逆行性伝導の存在が確認された.
Journal
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- Shinzo
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Shinzo 43 (SUPPL.3), S3_5-S3_11, 2011
Japan Heart Foundation
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Keywords
Details 詳細情報について
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- CRID
- 1390001204049599232
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- NII Article ID
- 130002585010
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- ISSN
- 21863016
- 05864488
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed