A Study on the Transmural Conduction Velocity of Activation Front in the Left Ventricle of RBBB Patients : CLINICAL APPLICATION OF BODY SURFACE MAPPING

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概要

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• To investigate the effect of ventricular hypertrophy on the conduction velocity, the transmural conduction velocity was obtained from the findings of echocardiographic and body surface potential mapping examinations on 20 RBBB patients. The transmural conduction velocity was linearly correlated with the ventricular septal thickness and the greater the thickness, the faster was the conduction velocity. There was no statistically significant difference in the duration of the left ventricular activation obtained from the mapping examinations as well as in the time of onset of intrinsicoid deflection i V_5 between the group of left ventricular hypertrophy and that of non-hypertrophy. There was a good linear correlation between the imaginary distance covered by the activation front which proceeded in the direction from endocardium to epicardium during the left ventricular activation and the ventricular septal thickness. These findings were explicable from the faster conduction velocity in the hypertrophied ventricle. The increase in the conduction velocity in the hypertrophy group would be due to cable characteristics of hypertrophied cardiac cells and also due to increase in the number of multiple intercalated discs in the hypertrophied ventricle. It was concluded that the conduction velocity would be an important information to interpret the ECGs in ventricular hypertrophy as well as to estimate the pathological state of the heart.

• 社団法人日本循環器学会の論文
• 1981-10-20

著者

• ISHIKAWA Yuichi

  Department of Pathology, the Cancer Institute of JFCR

• Harigae S

  Department Of Cardiovascular Medicine Osaka University Graduate School Of Medicine

• HIRATA YUKIO

  Department of Clinical and Molecular Endocrinology, Tokyo Medical and Dental University Graduate Sch

• Kamakura Shiro

  Department Of Cardiovascular Surgery National Cardiovascular Center

• Satomi Kazuhiro

  Division Of Cardiology Department Of Internal Medicine National Cardiovascular Center

• TOYOSHIMA Hideaki

  Department of Public Health/Health Information Dynamics, Field of Social Life Science, Program in He

• NAGATA Seiki

  National Cardiovascular Center

• Sakakibara Hiroshi

  Department of Internal Medicine,National Cardiovascular Center

• Nagata Seiki

  The Division Of Hypertension National Cardiovascular Center

• Toyoshima Hideaki

  Department Of Medical Cardiology National Cardiovascular Center

• Shimomura Katsuro

  Department Of Internal Medicine National Cardiovascular Center

• Nagata Seiki

  Departments Of Cardiology National Cardiovascular Center

• PARK YONG-DAE

  Department of Medical Cardiology, National Cardiovascular Center

• NAKAYAMA RYU

  Department of Medical Cardiology, National Cardiovascular Center

• Hirata Yukio

  Department Of Medical Cardiology National Cardiovascular Center

• Sugihara Hiroki

  Second Department Of Internal Medicine Kyoto Prefectural University Of Medicine

• Nakayama Ryu

  Department Of Internal Medicine National Cancer Hospital

• Nakayama Ryu

  Dpt. Of Internal Medicine National Cardiovascular Center

• Nagata Seiki

  From The Department Of Medicine

• Hirata Yukio

  Department Of Anatomy And Embryology Tokyo Metropolitan Institute For Neurosciences:(present)departm

• Ishikawa Yuichi

  Department Of Medical Cardiology National Cardiovascular Center

• Sakakibara Hiroshi

  1st Division Dept. Of Intern. Med. Osaka Univ. Sch. Of Med.

• Ishikawa Yuichi

  Department Of Applied Chemistry Faculty Of Engineering Oita University

• Park Yong-dae

  Department Of Medical Cardiology National Cardiovascular Center

• Nagata Seiki

  Department Of Advanced Cardiovascular Therapeutics Osaka University Graduate School Of Medicine

• Nagata Seiki

  Department Of Cardiovascular Surgery National Cardiovascular Center

• Nakayama Ryu

  Dept. Of Intern. Med. Dept. Of Cardiovasc Surgery National Cardiovasc. Center

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