Reducing Ventricular Pacing in Sinus Node Dysfunction : DDIR versus DDDR
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概要
- 論文の詳細を見る
Background: The use of DDIR mode has been limited since the advent of mode switch in the DDDR mode. In patients with AV block, DDDR is necessary to maintain AV synchrony. However, DDIR mode may still be beneficial for patients with intact AV conduction. The aim of this study was to compare the incidence of ventricular pacing and atrial tachyarrhythmia in DDIR and DDDR with mode switch in a randomized, single-blind, crossover study, and discuss the utility of both modes. Methods and results: Twenty-four patients (8 males) with bradycardia-tachycardia syndrome and no signs of AV block (mean age 70.1 ± -9.1 years) were enrolled and randomized to DDIR or DDDR modes with the leads placed at the right atrial appendage and right ventricular apex. After 12 weeks, patients were switched to the opposite mode. During the study period, atrial high rate episodes and other pacemaker diagnostic data were collected. Significantly less ventricular pacing was observed in DDIR mode (DDIR versus DDDR; 48.9%, 76.5%, P = 0.0002) and atrial high rate episodes were significantly lower in DDIR mode (DDIR versus DDDR; 1.32, 1.85 per day, P < 0.05). Conclusion: In patients with sinus node dysfunction and intact AV conduction, DDIR mode may have important implications for simplifying device programming, device longevity, and to avoid atrial tachyarrhythmia.
- インターナショナル・ハート・ジャーナル刊行会の論文
著者
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Umemura Satoshi
熊本大学 医学薬学研究部循環器病態学
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Ishikawa Toshiyuki
Second Department of Internal Medicine, Yokohama City University Hospital
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Sumita Shinichi
Second Department of Internal Medicine, Yokohama City University Hospital
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Kosuge Masami
Second Department of Internal Medicine, Yokohama City University Hospital
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Giese Chad
Medtronic Inc
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Markowitz Toby
Medtronic Inc
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Tsunoda Soichi
Medtronic Japan Co., Ltd
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Uchino Kazuaki
Second Department of Internal Medicine, Yokohama City University Hospital
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Kobayashi Tsukasa
Second Department of Internal Medicine, Yokohama City University Hospital
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Matsushita Kohei
Second Department of Internal Medicine, Yokohama City University Hospital
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Inoue Noriko
Second Department of Internal Medicine, Yokohama City University Hospital
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Matsushita Katsumi
Second Department of Internal Medicine, Yokohama City University Hospital
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Taima Minoru
Second Department of Internal Medicine, Yokohama City University Hospital
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Kimura Kazuo
Second Department of Internal Medicine, Yokohama City University Hospital
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Umemura Satoshi
Second Department of Internal Medicine, Yokohama City University Hospital
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Sumita Shinichi
Second Department Of Internal Medicine Yokohama City University Hospital
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Matsushita Kohei
Second Department Of Internal Medicine Urafune Hospital Of Yokohama City University
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Umemura Satoshi
Second Department Of Internal Medicine Yokohama City University School Of Medicine
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Ishikawa Toshiyuki
Second Department Of Internal Medicine Yokohama City University Hospital
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Kimura Kazuo
Second Department Of Internal Medicine Yokohama City University School Of Medicine
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