When is long QT syndrome (LQTS) typically diagnosed?

Updated: Nov 29, 2017
  • Author: Ali A Sovari, MD, FACP, FACC; Chief Editor: Mikhael F El-Chami, MD  more...
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Answer

LQTS is usually diagnosed after a person has a cardiac event (eg, syncope, cardiac arrest). In some situations, this condition is diagnosed after a family member suddenly dies. In some individuals, the diagnosis is made when an ECG shows QT prolongation.

A history of cardiac events is the most typical clinical presentation in patients with LQTS.

See Presentation for more detail.


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