A 6-year-old boy with secondary long QT syndrome
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概要
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Secondary long QT syndrome (LQTS) is caused by several drugs, cardiac conditions, and noncardiac conditions. One of the main metabolic causes is hypokalemia. We experienced treating a boy with secondary LQTS due to primary aldosteronism. The boy had been followed annually since he was 6 years old because his resting electrocardiogram (ECG) showed a prolonged QT interval. When he was 9 years old, he developed general fatigue and myalgia. The QT interval in his resting ECG became longer and serum data indicated rhabdomyolysis. The aldosterone level was high and renin activity was low. He was diagnosed with primary aldosteronism. When we, pediatricians, see children with LQTS, we are apt to think that their condition is congenital in nature. However, secondary or acquired LQTS should be always taken into consideration and be excluded not only in adults but also in the pediatric population.
著者
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Hazeki Daisuke
Department Of Pediatrics National Hospital Organization Kagoshima Medical Center
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Mizota Michiyo
Department Of Pediatrics Faculty Of Medicine Kagoshima University
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Yoshinaga Masao
Department Of Pediatrics Faculty Of Medicine Kagoshima University
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Tanaka Yuji
Department Of Applied Chemistry Faculty Of Engineering Kyushu Institute Of Technology
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Kucho Yu
Department of Pediatrics, National Hospital Organization, Kagoshima Medical Center
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Mizota Michiyo
Department of Pediatrics, Imamura Hospital
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Kojo Kanami
Department of Pediatrics, National Hospital Organization, Kagoshima Medical Center
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Tanaka Yuji
Department of Pediatrics, National Hospital Organization, Kagoshima Medical Center
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