What is the prevalence of long QT syndrome (LQTS) in the US?

Updated: Nov 29, 2017
  • Author: Ali A Sovari, MD, FACP, FACC; Chief Editor: Mikhael F El-Chami, MD  more...
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Long QT syndrome (LQTS) remains an underdiagnosed disorder, especially because some individuals may LQTS gene mutation carriers who have a normal QTc duration. [16]

The prevalence of LQTS is difficult to estimate. However, LQTS may be expected to occur in the range of 1 in 2,000 to 1 in 5,000 individuals. [16, 17]

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