Atrial Premature Beats in Patients with Atrial Fibrillation Assessed by Non-Contact Mapping System
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概要
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<B>Background:</B> Information about atrial premature beats (APBs) in patients with atrial fibrillation (AF) assessed by non-contact mapping system is limited. <B>Methods:</B> APBs mapping was performed in 42 patients with paroxysmal AF (n=35) and persistent AF (n=7) by deploying non-contact mapping balloon in left atrium (LA). APBs lasting more than 3 beats were mapped. <B>Results:</B> APBs were observed in 60% (25/42) of AF patients. A total of 70 spontaneous APBs were analyzed. The median number of APBs was 5 with range of 3–101. Analysis of APBs showed there were several origins within APBs. Only 34% of the APBs consisted of a single origin, while 47% consisted of two disparate regional or biatrial origins and 19% consisted of more than three origins. The locations of non-PVs foci included right atrium or SVC (33%), interatrial septum (17%), left atrial roof (22%), inferior LA (18%), anterior LA (6%), posterior LA (4%). After PV isolation, patients with more than two non-PV foci exhibited a trend towards higher recurrence rate of AF than patients with less than one non-PV focus (P=0.14). <B>Conclusions:</B> Most of the APBs in patients with AF consisted of several origins. Patients who had several non-PVs foci might have higher recurrence rate of AF.
著者
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Kobayashi Yoshio
Department of Biomolecular Functional Engineering, College of Engineering, Ibaraki University
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Yamane Teiichi
Department of Cardiology, Jikei University School of Medicine
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Date Taro
Department Of Cardiology Jikei University Of Medicine
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Matsuo Seiichiro
Department Of Cardiology Jikei University Of Medicine
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Kato Ken
Division Of Cardiology Yokohama City University Medical Center
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Yamane Teiichi
Department Of Cardiology Cardiovascular Institute
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Hama Yoshiyuki
Division of Cardiology, Kimitsu Chuo Hospital
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Ueda Marehiko
Department Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine
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Hiranuma Yasunori
Department Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine
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