Development of Ventricular Fibrillations With Different Characteristics in the Local Electrocardiogram : Large and Small Amplitude of Activation, and its Implication for Implantable Cardioverter Defibrillator Treatment
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概要
- 論文の詳細を見る
An implantable cardioverter defibrillator(ICD) was implanted in 2 patients with ventricular tachyarrhythmia related to old myocardial infraction, and defibrillation tests were attempted at the time of ICD implantation and at 2 or 4 weeks after the operation. Ventricular fibrillation(VF) was induced by T-wave shocks, but the amplitude of the ventricular electrogram was different in each VF. In most of the VFs with large ventricular electrograms, the local activity was appropriately detected. However, many undersensed beats were observed in other VFs that had fine ventricular electrograms and a longer time was needed before delivering the shock. The amplitude of the ventricular electrogram might be small in some cases of VF and this might result in undersensing and/or unsuccessful defibrillation. Close attention must be paid to the amplitude of ventricular activation in each VF to avoid possible difficulty in ICD therapy.
- 社団法人日本循環器学会の論文
- 1999-11-20
著者
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Aizawa Yoshifusa
First Department of Internal Medicine, Niigata University School of Medicine
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Chinushi Masaomi
First Department Of Internal Medicine Niigata University School Of Medicine
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Washizuka Takashi
First Department of Internal Medicine, Division of Cardiology, Niigata University School of Medicine
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Kasai Hidehiro
The First Department of Internal Medicine, Niigata University School of Medicine
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Washizuka Takashi
First Department Of Internal Medicine Niigata University School Of Medicine
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Kasai Hidehiro
The First Department Of Internal Medicine Niigata University School Of Medicine
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Satoh Masahito
Cardiovascular Center Tachikawa General Hospital
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Kasai Hidehiro
First Department Of Internal Medicine Niigata University School Of Medicine
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Sato Masahito
Cardiovascular Center Tachikawa General Hospital
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Ohhira Kouji
First Department of Internal Medicine, Niigata University School of Medicine
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Ohhira Kouji
First Department Of Internal Medicine Niigata University School Of Medicine
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Satoh Masahito
The First Department Of Internal Medicine Niigata University School Of Medicine
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Aizawa Yoshifusa
First Department Of Internal Medicine Niigata Universaity School Of Medicine
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WASHIZUKA Takashi
First Department of Internal Medecine, Niigata University School of Medicine, Niigata, Japan.
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AIZAWA Yoshifusa
First Department of Internal Medecine, Niigata University School of Medicine, Niigata, Japan.
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