Estimation of Atrial Remodeling Using Filtered P Wave Duration in Patients with Paroxysmal Atrial Fibrillation
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概要
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<B>Background:</B> Prolonged filtered P wave duration (PWD) would suggest conduction delay within atrium and pulmonary vein, and may be associated with advanced atrial remodeling. However there is little information available about the relationship between PWD and parameters representing severity of atrial remodeling. <B>Methods:</B> Consecutive 56 patients with paroxysmal atrial fibrillation were enrolled. PWD was measured using signal averaged electrocardiogram, and multi-detector computed tomography was performed to obtain left atrial (LA) volume and LA ejection fraction. Then, we investigated the relationship between PWD and parameters including LA volume and LA ejection fraction. <B>Results:</B> PWD (128±12 ms) demonstrated a positive correlation with LA volume (73.9±29.3 cm<SUP>3</SUP>, r=0.58, p<0.0001) and a negative correlation with LA ejection fraction (39.5±12.3%, r=0.38, p=0.008). <B>Conclusion:</B> In patients with paroxysmal atrial fibrillation, PWD prolonged along with LA enlargement and impairment of its contractility. Prolonged PWD could suggest advanced atrial remodeling.
著者
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Inoue Koichi
Cardiovascular Center Sakurabashi Watanabe Hospital
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Kimura Ryusuke
Cardiovascular Center Sakurabashi Watanabe Hospital
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Doi Atsushi
Cardiovascular Center Sakurabashi Watanabe Hospital
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Toyoshima Yuko
Cardiovascular Center Sakurabashi Watanabe Hospital
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Masuda Masaharu
Cardiovascular Center Sakurabashi Watanabe Hospital
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Kimura Ryusuke
Cardiovascular Center Sakurabashiwatanabe Hospital
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Sekiya Kimiko
Cardiovascular Center Sakurabashiwatanabe Hospital
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Shiraiwa Rieko
Cardiovascular Center Sakurabashiwatanabe Hospital
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Kobayashi Kazuhisa
Cardiovascular Center Sakurabashiwatanabe Hospital
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Masuda Masaharu
Cardiovascular Center Sakurabashiwatanabe Hospital
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Toyoshima Yuko
Cardiovascular Center Sakurabashiwatanabe Hospital
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