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Long on QT and low on calcium

  • Timothy J. Bradley (a1), Daniel L. Metzger (a2) and Shubhayan Sanatani (a3)

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.

Corresponding author
Correspondence to: Dr Shubhayan Sanatani, Division of Cardiology, British Columbia's Children's Hospital, 4480 Oak Street, Vancouver, BC V6H 3V4, Canada. Tel: +1 604 875 3619; Fax: +1 604 875 3463; E-mail:
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Cardiology in the Young
  • ISSN: 1047-9511
  • EISSN: 1467-1107
  • URL: /core/journals/cardiology-in-the-young
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