Tetralogy of Fallot.

Most common Cyanotic heart disease

Components:

1)Overriding of aorta

2)Pulmonary stenosis

3)Right ventricular hypertrophy

4)Ventricular septal defect

c/f depends on the degree of pulmonary stenosis

Increased risk of

Endocarditis

Systemic paradoxical embolisation

Brain abscess

Transposition of the Great Vessels:

Pulmonary arteries comes left ventricle

Aorta from right ventricle

Not compatible with life

Immediate survival dependant on shunt from left heart to right heart

25% have VSD

33% abnormal coronaries.