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Long QT interval in Andersen syndrome

EKG shows long QT interval and U waves in a patient with Andersen syndrome. Note that the standard criteria for defining the long QT interval is the corrected (rate-related) QT interval, which exceeds 440 ms in men and 460 ms in women. (Contributed by Dr. Amy Mankodi.)

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Associated Disorders

  • Adynamia episodica paralysis
  • Becker generalized myotonia
  • Myotonia congenita (autosomal dominant)
  • Myotonia congenita (autosomal recessive)
  • Myotonia fluctuans
  • Myotonia permanens
  • Thomsen disease
  • Von Eulenberg syndrome