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J. Timothy Bricker, MD; Arthur Garson, Jr, MD; Paul C. Gillette, MD

Am J Dis Child. 1984;138(9):866-868.

Abstract
• Hereditary prolongation of the Q-T interval is associated with ventricular dysrhythmias. Children with hereditary prolongation of the Q-T interval may have symptoms that seem related to a neurologic abnormality. Two families had members who had been treated with phenytoin sodium for seizures and had died suddenly when the medication was discontinued. Children In both families were found to have prolongation of the Q-T interval. A history of seizures or of seizures in the family may be an indication of hereditary prolongation of the Q-T interval.

(AJDC 1984;138:866-868)

Author Affiliations
From the Lillie Frank Abercrombie Section of Cardiology, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston.

Footnotes
Reprint requests to Pediatric Cardiology, Texas Children's Hospital, 6621 Fannin, Houston, TX 77030 (Dr Bricker).

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