CLINICAL SIGNIFICANCE OF LATE POTENTIALS IN PATIENTS AFTER INTRACARDIAC OPERATION FOR CONGENITAL HEART DISEASE
スポンサーリンク
概要
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The aim of this study was to evaluate the late potentials (LPs) in postoperative patients with congenital heart disease (CHD) and to study the association with the clinical characteristics in the postoperative patients with LPs. Signal averaged electrocardiogram (SA-ECG) was recorded in 119 postoperative patients aged 4 to 23 years and compared with those in age matched 49 healthy volunteers with and without right bundle branch block. Based on control data, criterias of LP were defined and altered in the presence of bundle branch block. Abnormal SA-ECGS Were not detected in the patients with non-cyanotic CHD. However, abnormal and borderline SA-ECGS were recognized in 5 (12%) of 42 patients after intracardiac operation for tetralogy of Fallot and 3 (30%) of 9 patients after Rastelli's operation. The patients with abnormal and borderline SA-ECGS Were significantly older at the time of operation, and had more frequent ventricular arrhythmias (7/8: 3/111, p<0.01) and depression of the ST-T segment on ECG (7/8: 11/111, p<0.01), compared with the normal SA-ECG group. Abnormal SA-ECGS including those of borderline patients were 50% sensitive and 96% specific for documented ventricular arrhythmias. However, there was no association between anbnormalities of SA-ECGS and cardiomegaly on chest X-ray or left ventricular ejection fraction on echocardiogram. These results indicate that prolonged exposure to hypoxia may be the main cause of the primary role in the development of LPs. And late surgical intervention may result in histological background for the development of LPs.
- 社団法人日本循環器学会の論文
- 1992-07-20
著者
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MATSUOKA SUGURU
Department of Pediatrics
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AKITA HIROSHI
Department of Pediatrics
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TAGUCHI YOSHIYUKI
Department of Pediatrics
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KUBO MASAHIRO
Department of Pediatrics
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KATOH ITSUO
Department of Cardiovascular Surgery
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AKITA HIROSHI
The Department of Pediatrics, University of Tokushima
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KURODA YASUHIRO
The Department of Pediatrics, University of Tokushima
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Matsuo Suguru
Department Of Pediatrics
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Akita Hiroshi
徳島大学医学部
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KITAGAWA Tetsuya
Cardiovascular Surgery, The University of Tokushima School of Medicine
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KUBO Masahiro
the Department of Internal Medicine, Toyama Rosai Hospital
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Matsuoka Suguru
徳島大学医学部
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MATSUO SUGURU
The Departments of Pediatrics, Tokushima University Hospital
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TAGUCHI YOSHIYUKI
The Departments of Pediatrics, Tokushima University Hospital
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MIKI OSAMU
Cardiovascular Surgery, Tokushima University Hospital
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KATOH ITSUO
Cardiovascular Surgery, Tokushima University Hospital
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Miki Osamu
Cardiovascular Surgery Tokushima University Hospital
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Kitagawa Tetsuya
Department Of Cardiovascular Surgery
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Matsuo Suguru
The Departments Of Pediatrics Tokushima University Hospital
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Kubo Masahiro
The Department Of Internal Medicine Toyama Rosai Hospital
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Kuroda Yasuhiro
The Departments Of Pediatrics Tokushima University Hospital
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Kitagawa Tetsuya
Cardiovascular Surgery The University Of Tokushima Graduate School Of Health Biosciences
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