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CYANOTIC CONGENITAL HEART DISEASE: DR. K. L. BARIK. ASST. PROFESOR, DEPT. OF PEDIATRICS, BURDWAN MEDICAL COLLEGE.

Congenital heart diseases produce cyanosis:  

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Tetralogy of Fallot (TOF). Transposition of great arteries (TGA). i) Complete TGA. ii) Corrected TGA. Total anomalous pul. venous return (TAPVR). Tricuspid atresia. Ebstein’ anomaly Single ventricle. Double outlet rt. ventricle. Persistent truncus arteriosus.

Consequences and complications of cyanosis: 

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Polycythemia:i) Low o2- erytropoetin incrd. ii) Hematocrit >65%.iii) Anemia Cubbing: i) R –L shunt. ii) PDGF. iii) TGF-B. Hypoxic spell : Rapid and deep breathing, inc. cyanosis, limpnesssp.posture – squatting. CNS complication: i) Brain absess- >2yrs. Viscosity-hypoxiamicroinfarct.ii) vascular stroke-3 months of age. Gore-Tex (modified Blalock-Taussig)- interposition shunt – between subclavian artery & ipsilateral PA – same side of aortic arch -