How does the prevalence of long QT syndrome (LQTS) vary by age?

Updated: Nov 29, 2017
  • Author: Ali A Sovari, MD, FACP, FACC; Chief Editor: Mikhael F El-Chami, MD  more...
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Patients with LQTS usually present with cardiac events (eg, syncope, aborted cardiac arrest, sudden death) in childhood, adolescence, or early adulthood. However, LQTS has been identified in adults as late as in the fifth decade of life. The risk of death from LQTS is higher in boys than in girls younger than 10 years; the risk is similar in male and female patients thereafter.

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