EFFECTS OF INJURY TO THE RIGHT VENTRICULAR CONDUCTING TISSUE OF CANINE HEARTS ON EPICARDIAL ACTIVATION SEQUENCE AND ELECTROCARDIOGRAMS

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概要

• 論文の詳細を見る

• The distal right ventricular conducting tissues of 45 canine hearts were experimentally interrupted in various degrees by a transmural incision of the right ventricular free wall, a trans-section of the lateral branches of the right bundle or by injury to the endocardial Purkinje network. Right ventriculotomy caused a slight activation delay (less than 10 msec) of the right ventricle which was restricted to the distal area from the incision, but the delay was not long enough to cause a significant prolongation of the QRS duration in the limb lead ECG. In one experiment, a vertical incision in the middle region induced an exceptional, marked alteration of the right ventricular activation sequence and an apparent prolongation of the QRS duration (16 msec) indicating an incomplete RBBB. However, anatomical analysis revealed that the lateral branches were nearly completely interrupted by the incision. An extensive injury to the Purkinje network extending toward the right ventricular outflow tract by a blunt scalpel caused a local activation delay in the outflow tract, without producing any serious delay resulting in an ECG pattern of RBBB. These results may suggest that right ventriculotomy would induce the RBBB pattern of ECG if lateral branches are extensively injured by the surgical procedure, and that the injury to the Purkinje network extending toward the outflow tract does not play a primary role of genesis of RBBB pattern in ECG.

• 社団法人日本循環器学会の論文
• 1981-09-20

著者

• TOYAMA Junji

  Division of Cardiology, Aichi Prefecture Cardiovascular and Respiratory Center

• Toyama Junji

  名古屋大学 大学院医学系研究科循環器内科

• Kodama Itsuo

  Division of Circulation and Respiration, The Research Institute of Environmental Medicine, Nagoya Un

• Yamada Kazuo

  Division of Circulation and Respiration, The Research Institute of Environmental Medicine, Nagoya Un

• Toyama Junji

  Division Of Cardiology Aichi Prefecture Cardiovascular And Respiratory Center

• Ohno Miyoshi

  Division Of Circulation And Respiration Research Institute Of Environmental Medicine Nagoya Universi

• Toyama Junji

  Department Of Circulation Division Of Regulation Of Organ Function Research Institute Of Environment

• Yamada Kazuo

  Division Of Circulation And Respiration The Research Institute Of Environmental Medicine Nagoya Univ

• KOHBE TATSUO

  Division of Circulation and Respiration, Research Institute of Environmental Medicine, Nagoya Univer

• ISOMURA SHINOBU

  Division of Circulation and Respiration, Research Institute of Environmental Medicine, Nagoya Univer

• Kohbe Tatsuo

  Division Of Circulation And Respiration Research Institute Of Environmental Medicine Nagoya Universi

• Isomura Shinobu

  Department Of Circulation And Respiration The Research Institute Of Environmental Medicine Nagoya Un

• Isomura Shinobu

  Department Of Circulation And Respiration The Reseach Institute Of Environmental Medicine Nagoya Uni

• Ohno Miyoshi

  Division Of Cardiology Nagoya First Red Cross Hospital

• Ono Miyoshi

  Division Of Respiration And Circulation Research Institute Of Environmental Medicine Nagoya Universi

• Tamoto Kohji

  1st Dept. Of Surgery Nagoya Univ. School Of Med.

• Ono Miyoshi

  Department Of Respiration & Circulation Research Institute Of Environmental Medicine. Nagoya Uni

• Tamoto Koji

  Department Of Respiration & Circulation Research Institute Of Environmental Medicine. Nagoya Uni

• Tamoto Koji

  1st Dept. Of Surgery Nagoya Univ. School Of Med.

• Toyama Junji

  Division Of Cardiology Aichi Prefectural Cardiovascular And Respiratory Center

• Ohno Miyoshi

  Division Of Cardiology Aichi Prefectural Cardiovascular And Respiratory Center

• Ono Miyoshi

  Division Of Respiration And Circulation Research Institute Of Environmental Medicine Nagoya Universi

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