Long on QT and low on calcium |
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Authors: | Bradley Timothy J Metzger Daniel L Sanatani Shubhayan |
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Affiliation: | Division of Cardiology, The Hospital for Sick Children, Toronto. |
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Abstract: | Acquired lengthening of the QT interval due to hypocalcaemia is a rare cause of arrhythmia in childhood. Early recognition, rapid institution of appropriate cardiac monitoring, and replacement therapy are essential. An endocrinal work-up may be necessary to exclude primary disorders of calcium metabolism. We report four cases documenting the varied clinical spectrum in which hypocalcaemic-induced prolongation of the QT interval and arrhythmia can occur in childhood. |
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