Study on congenital complete heart block in children by 24-hour ambulatory electrocardiographic monitoring.
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概要
- 論文の詳細を見る
Ambulatory electrocardiographic monitoring was performed in 18 children with a congenital complete heart block (CCHB). They had no cardiac structural anomalies. These patients could be divided into 3 groups according to the pattern of fluctuations in beat-to-beat ventricular rates. Type 1 patients showed rapid and transient fluctuations and demonstrated a high correlation between atrial and ventricular rates. Type 3 patients showed a constant ventricular rate and little variation through the 24 hour period and there was no appreciable correlation between atrial and ventricular rates. Twelve of 18 patients had additional arrhythmias. A few sporadic ventricular premature contractions (VPCs) were found in 9 patients, and bigeminy of VPCs or ventricular tachycardias were seen in 2 patients during exercise. Frequent and sudden prolongation of RR intervals was found during sleep in 3 patients. The longest intervals of ventricular asystoles were 7.2, 3.2 and 3.2sec, respectively. The mechanism of this phenomenon appeared to be not only an exit block, but also arrest or a lack of automaticity of a subsidiary pacemaker. One of these patients developed frequent Stokes-Adams attacks. Type 3 patients with sudden prolongation of RR intervals and/or frequent ventricular arrhythmias should be under careful observation. Ambulatory electrocardiographic monitoring is recommended for children with CCHB for evaluation of potential risk factors for Stokes-Adams attacks.
- International Heart Journal刊行会の論文
著者
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Okajima Mitsuharu
Laboratory Of Medical Engineering And Computer Science Fujita-gakuen University
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Kaneko Tetsuichi
Department Of Pediatric Kariya Sogo Hospital
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Matsushima Masaki
Department Of Earth And Planetary Science Tokyo Institute Of Technology
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Asai Toshiyuki
Department Of Pediatrics Nagoya University School Of Medicine
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Yazaki Takehiko
Department Of Pediatrics Fujita-gakuen University
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Nakashima Takahiro
Department of Pediatrics, Nagoya University School of Medicine
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Nagashima Masami
Department Of Cardiology Aichi Children's Health And Medical Center
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Ogawa Akimasa
Department of Pediatric Cardiology , Chukyo Hospital
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NAGASHIMA Masami
Department of Pediatrics, Nagoya University, School of Medicine
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OHSUGA Akiko
Department of Pediatrics, Fujita-Gakuen Health University, School of Medicine
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Nakashima Takahiro
Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
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OKAJIMA Mitsuharu
Laboratory of Medical Engineering and Computer Science, Fujita-Gakuen Health University, School of Medicine
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- Study on congenital complete heart block in children by 24-hour ambulatory electrocardiographic monitoring.