Efficacy of Electronic Repositioning and Changing Pulse Width for Phrenic Nerve Stimulation
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概要
- 論文の詳細を見る
<B>Background:</B> Cardiac resynchronization therapy (CRT) is an effective treatment for patients with drug-refractory, chronic heart failure. However, phrenic nerve stimulation (PNS) sometimes becomes critical causes of failure to deliver CRT. In clinical practice, a low stimulation output of the LV lead is often chosen to avoid PNS but it does not always settle this problem. <B>Methods and Results:</B> To assess the efficacy of electronic repositioning and changing pulse width for PNS, we reviewed our cohort of 55 patients underwent CRT implantation from 2008 to 2010. Clinical PNS was detected in 3 of 55 patients after reduced stimulation amplitude near the pacing threshold. Electronic repositioning was made by reprograming of cathode and/or pacing output of amplitude was reduced in combination with changing pulse width (1.5 V/0.47 ms to 1.08 V/0.53 ms). All patients could avoid PNS and deliver CRT without lead replacement after this reprograming. <B>Conclusion:</B> Electronic repositioning in combination with changing pulse width is effective to avoid PNS and deliver CRT.
著者
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Aiba Takeshi
Department Of Cardiovascular And Respiratory Medicine Shiga University Of Medical Science
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Noda Takashi
Department of Cardiology, National Cardiovascular Center
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Satomi Kazuhiro
Department Of Arrhythmia And Electrophysiology National Cerebral And Cardiovascular Center
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Kamakura Shiro
Department Of Cardiology National Cardiovascular Center
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Shimizu Wataru
Department Of Biotechnology Faculty Of Engineering Nagoya University
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Nakajima Ikutarou
Department Of Cardiology National Cardiovascular Center
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Miyamoto Koji
Department Of Biological Sciences Graduate School Of Bioscience And Biotechnology Tokyo Institute Of
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Okamura Hideo
Department Of Cardiology Japan Red Cross Wakayama Medical Center
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KOBAYASHI Takashi
Department of Applied Physics,Faculty of Engineering,Nagoya University
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Noda Takashi
Department of Cardiology, National Cerebral and Cardiovascular Center
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Aihara Naohiko
Department of Cardiology, National Cerebral and Cardiovascular Center
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Wada Mitsuru
Department of cardiology, National Cerebral and Cardiovascular Center
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Yamada Yuko
Department of Cardiology, National Cerebral and Cardiovascular Center
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Aiba Takeshi
Department of Cardiology, National Cerebral and Cardiovascular Center
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Okamura Hideo
Department of Cardiology, National Cerebral and Cardiovascular Center
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Shimizu Wataru
Department of Cardiology, National Cerebral and Cardiovascular Center
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