Clinical and Electrophysiological Characteristics of Ventricular Tachycardia of Epicardialorigin Associated with Cardiac Sarcoidosis
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概要
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<B>Background:</B> Cardiac sarcoidosis is generally recognized as a cause of ventricular tachycardia (VT) and sudden death. Before, we described the characteristics and outcome of VT due to cardiac sarcoidosis. This time, we make a study of sarcoid VT coursed from epicardium. <B>Method and Result:</B> In the 9 consecutive patients (57±11 years, 2 male) who admitted to our hospital with the diagnosis of VT associated with cardiac sarcoidosis and underwent radiofrequency catheter ablation, we were able to confirm 2 VTs (2 patients) coursed from epicardium. (31 VTs were appeared in 9 patients. 6.4%). The LVEF were 47% in the patient who have endcardium VT. (The meam LVEF of cardiac sarcoidosis patient 41±10%). VTs coursed from epicardium cannot induced from program stimulations. Both VTs coursed from posterior wall of left ventricle and cannot disappear catheter ablation from endocardium. Epicardium VTs have not purkinje-fiber potentials before or after the potential, and terminated naturally without sustain over 30 second. During 26 month follow-up, fatal VT episodes were not occur. <B>Conclusion:</B> Cardiac sarcoidosis provoke different types of VTs. In our study, VTs course from epicarium were fewer than that course from endocardium.
著者
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Tada Hiroshi
Cardiology Department of Internal Medicine, Univercity of Tsukuba Graduate School of Comprehensive H
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Igarashi Miyako
Cardiovascular division, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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Yamasaki Hiro
Cardiology Department Of Internal Medicine University Of Tsukuba Graduate School Of Comprehensive Hu
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Sekiguchi Yukio
Cardiology Department Of Internal Medicine University Of Tsukuba Graduate School Of Comprehensive Hu
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Aonuma Kazutaka
Cardiology Department Of Internal Medicine University Of Tsukuba Graduate School Of Comprehensive Hu
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Kuroki Kenji
Cardiology Department Of Internal Medicine University Of Tsukuba Graduate School Of Comprehensive Hu
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Nakano Emi
Cardiovascular Division Kawasaki Municipal Tama Hospital
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Naruse Yoshihisa
Cardiovascular Division Institute Of Clinical Medicine Graduate School Of Comprehensive Human Sciences University Of Tsukuba
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IGARASHI Miyako
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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KUROKI Kenji
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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KANESHIRO Takashi
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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Yoshida Kentarou
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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Kunugita Fusnori
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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Kaneshiro Takashi
Cardiovascular Division, Graduate School of Comprehensive Human Sciences, University of Tsukuba
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Igarashi Miyako
Cardiovascular Division, Faculty of Medicine, University of Tsukuba
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