Sudden cardiac death (SCD) is an unexpected death due to cardiac causes occurring
within 1 hour of symptom onset.


  Circulation 2006;114;e385-e484.

In subjects without structural heart disease, the following ECG abnormalities may suggest
increased risk of sudden cardiac death

  Long QT interval

  Short QT interval syndrome

  Brugada syndrome (resting ECG MAY or MAY NOT be normal)

     Sudden Unexpected Nocturnal Death Syndrome

  Torsades de pointes

  Wolff-Parkinson-White (WPW) syndrome

  Cathecholaminergic polymorphic ventricular tachycardia (CPVT) (resting ECG is NORMAL)

  Andersen-Tawil Syndrome (ATS)

  Early Repolarization (ER)

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