The Effects of Accumulated Experience on Radiofrequency Ablation of Accessory Pathways.
スポンサーリンク
概要
- 論文の詳細を見る
Reevaluation of repeated balloon angioplasty as a model of ischemic preconditioning and of the role of collateral circulation and highfrequency electrocardiograms in repeated inflations was carried out. There have been few studies using angioplasty as a model of ischemic preconditioning of the collateral circulation during repeated inflations or of the use of highfrequency electrocardiograms during angioplasty. Twenty patients underwent 3 repeated balloon inflations, each with a duration of more than 138 seconds. During inflation, ipsilateral and contralateral coronary angiography and signalaveraged electrocardiography were performed.At the 1st inflation, the ST segment gradually increased as the inflation time elapsed. During the 2nd and 3rd inflations, in which ST elevation was nearly equal, the ST segment gradually increased, but it was not as prominent as that at the 1st inflation; thus, the concept that ischemia is gradually ameliorated (adaptation to ischemia) was not documented. Comparison of the maximal ST elevation and ipsilateral and contralateral circulation at each inflation revealed that the ST segment became elevated and the contralateral collateral circulation increased significantly at the 1st inflation compared with those in the control. ST elevation, however decreased significantly and collateral circulation remained unchanged at the 2nd inflation; thus, collateral circulation did not cause the ST elevation decrease. The total root mean square voltage detected by signal averaging decreased significantly only at the 1st inflation. Balloon angioplasty is not always suitable as a model of ischemic preconditioning and collateral circulation is not the cause of ischemic preconditioning.
- International Heart Journal刊行会の論文
著者
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Chen Shih-ann
Division Of Cardiology Department Of Medicine And National Yang-ming University School Of Medicine A
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Chiou Chuen-wang
Division Of Cardiology Department Of Internal Medicine Kaohsiung Veterans General Hospital
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Tai Ching-tai
Division Of Cardiology Department Of Medicine And National Yang-ming University School Of Medicine A
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Ueng Kwo-chang
Division Of Cardiology Department Of Internal Medicine Institute Of Medicine Chung-shan Medical Univ
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CHANG Mau-Song
Division of Cardiology, Department of Medicine, Veterans General Hospital
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Chiang Chern-en
Division Of Cardiology Department Of Medicine Taipei Veterans General Hospital And National Yang-min
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WU Tsu-Juey
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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CHIANG Chern-En
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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KUO Benjamin
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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CHENG Chen-Chuen
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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LEE Shih-Huang
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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WEN Zu-Chi
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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CHANG Mau-Song
Division of Cardiology, Department of Internal Medicine, Veterans General Hospital-Kaohsiung and Taipei
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CHANG Mau-Song
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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CHIOU Chuen-Wang
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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UENG Kwo-Chang
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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Chen Shih-Ann
Division of Cardiology and Cardiovascular Research Center, National Yang-Ming University, School of Medicine, and Taipei Veterans General Hospital, Taipei Municipal Gan-Dau Hospital
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Lee Shih-Huang
Division of Cardiology, Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital
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CHANG Mau-Song
Division of Cardiology, Department of Internal Medicine, Veterans General Hospital and the National Yang Ming Medical College
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TAI Ching-Tai
Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine and Veterans General Hospital-Taipei
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