Sudden cardiac arrest (SCA) and sudden cardiac death (SCD) occur when the heart abruptly begins to beat in an abnormal or irregular rhythm . Without organized electrical activity in the heart muscle, there is no consistent contraction of the ventricles , which results in the heart’s inability to generate an adequate cardiac output (forward pumping of blood from heart to rest of the body

What causes SADS?
If you have a heart condition, you can experience arrhythmias (abnormal heart rhythms) which may cause a cardiac arrest.

Inherited heart conditions which may cause cardiac arrest if undetected and untreated include:

  • Hypertrophic cardiomyopathy (HCM)
  • Dilated cardiomyopathy (DCM)
  • Arrhythmogenic right ventricular cardiomyopathy (ARVC)
  • Long QT syndrome (LQTS)
  • Brugada syndrome
  • Catecholaminergic polymorphic ventricular tachycardia (CPVT)
  • Progressive cardiac conduction defect (PCCD).

 

. An echocardiogram can also detect inheritable conditions such as cardiomyopathy and mitral valve prolapse.

 

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