Abstract
A case of QT interval prolongation with ventricular tachycardia and torsade de pointes is reported. Arrhythmias occurred in a baby with persistent 2:1 atrioventricular block and long QT interval 2 days after birth and were self-limiting. No structural cardiac defect was present. Serum levels of sodium, potassium, magnesium and calcium were in the normal range. Finally, the pathogenetic mechanism of cardiac block is discussed.
Publication types
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Case Reports
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Research Support, Non-U.S. Gov't
MeSH terms
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Bundle of His / drug effects
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Bundle of His / physiopathology
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Calcium Gluconate / administration & dosage
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Drug Therapy, Combination
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Electrocardiography, Ambulatory / drug effects
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Heart Block / congenital*
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Heart Block / drug therapy
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Heart Block / physiopathology
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Heart Ventricles / drug effects
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Heart Ventricles / physiopathology
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Humans
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Infant, Newborn
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Long QT Syndrome / congenital*
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Long QT Syndrome / drug therapy
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Long QT Syndrome / physiopathology
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Magnesium Sulfate / administration & dosage
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Male
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Sudden Infant Death / etiology
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Sudden Infant Death / prevention & control
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Torsades de Pointes / congenital*
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Torsades de Pointes / drug therapy
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Torsades de Pointes / physiopathology
Substances
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Magnesium Sulfate
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Calcium Gluconate