Long on QT and low on calcium.
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.
Bradley
Timothy J
TJ
Division of Cardiology, The Hospital for Sick Children, Toronto.
Metzger
Daniel L
DL
Sanatani
Shubhayan
S
D000293:Adolescent; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006996:Hypocalcemia / Q000150:complications*; D008133:Long QT Syndrome / Q000209:etiology*; D008297:Male