Sudden Cardiac Arrest

most common:

birth to 13 years

• congenital abnormality.

aged 14 to 24 years

• hypertrophic cardiomyopathy (HCM)
• arrhythmogenic right ventricular cardiomyopathy (ARVC)
• congenital coronary anomalies
• genetic channelopathies
  • Long QT syndrome (LQTS)
  • Short QT syndrome (SQTS)
  • Brugada syndrome
  • Early repolarization syndrome
  • Catecholaminergic polymorphic ventricular tachycardia (CPVT)
• myocarditis
• Wolff-Parkinson-White syndrome
• Marfan syndrome

causes:

1. Ischemic Heart disease
   1. Myocardial infarction
   2. Anomalous coronary origin
   3. coronary spasm

2. Inherited Channelopathies 
   1. Long QT syndrome (LQTS)
   2. Short QT syndrome (SQTS)
   3. Brugada syndrome
   4. Early repolarization syndrome
   5. Catecholaminergic polymorphic ventricular tachycardia (CPVT)

3. Cardiomyopathies
   1. Alcoholic
   2. Hypertrophic
   3. Idiopathic
   4. Obesity-related
   5. Fibrotic
   6. Arrhythmogenic right ventricular cardiomyopathy (ARVC)
   7. Myocarditis

4. Heart Failure
   1. Nonpreserved  ejection fraction (EF) systolic heart failure (EF less than 35%)

5. Valve disease
   1. Aortic stenosis

6. Congenital diseases
   1. Tetraology of Fallot