Left Bundle Branch Block With Intermittent QRS Axis Switching Observation of a Hypertensive Patient for 18 Years

DOI Web Site 参考文献12件
  • Takato Tetsuya
    Division of Cardiovascular Disease, The Institute for Adult Diseases Asahi Life Foundation
  • Yamada Namie
    Division of Cardiovascular Disease, The Institute for Adult Diseases Asahi Life Foundation
  • Fujii Jun
    Division of Cardiovascular Disease, The Institute for Adult Diseases Asahi Life Foundation
  • Mashima Saburo
    School of Medicine, Showa University
  • Ashida Terunao
    Division of Cardiovascular Disease, The Institute for Adult Diseases Asahi Life Foundation

書誌事項

タイトル別名
  • Observation of a Hypertensive Patient for 18 Years

この論文をさがす

抄録

A 64-year-old man who had been prescribed antihypertensive drugs since 1971 attended our clinic in 1988 with hypertension and electrocardiographic abnormalities. An electrocardiogram revealed left axis deviation (LAD) in 1988 and slightly prolonged PQ intervals in 1993. Complete left bundle branch block (CLBBB) with LAD developed in May 1995. The wide QRS of the CLBBB had never returned to the normal narrow QRS and had intermittently alternated between LAD and normal axis. The PQ intervals were longer when the QRS axis showed LAD compared to that with normal QRS axis. The QRS complexes in leads V1-V3 revealed an R wave at LAD and a QS pattern at normal axis. During a deep breathing test, the QRS axis switched from normal axis to LAD at the end of forced expiration and also switched from normal axis to LAD within a few minutes after the exercise test. These results suggest that the shift of the QRS axis might be related to the tone of the autonomic nervous system.

収録刊行物

  • International Heart Journal

    International Heart Journal 50 (5), 677-684, 2009

    一般社団法人 インターナショナル・ハート・ジャーナル刊行会

参考文献 (12)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ