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CONGENITAL HEART DISEASE (Atrial Septal Defect (Hole between RA and LA,…
CONGENITAL HEART DISEASE
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Atrial Septal Defect
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Once pressure on right exceeds pressure on left, there will be right to left shunt causing CYANOSIS
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Sometimes high pressure on right due to pulmonary thromboembolism may lead to opening of flap closing foramen ovale & favour paradoxical embolism.
Tetralogy of Fallot
Features:
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- Ventricular Septal Defect
Because of pulmonary stenosis, blood shunts from right to left.
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- Hypertrophied Right Ventricle
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The high pressure in the pulmonary trunk due to PS, causes right to left shunt thru VSD.
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Aortic Coarctation
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Upstream
blood flow in upstream branches of aorta is high eg. subclavian, carotid
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Downstream
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Due to this low pressure, some patients may experience claudication in legs which is pain in legs due to decreased perfusion.
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