Cyanotic Heart Disease

indicence of congenital heart disease

5-8/1000

MC cyanotic heart disease

TOF
TGA

TOF patients have very less likelihood of PHTN due to sub pulmonary stenosis T/F

T

How persistent left SVC with ____ produce cyanosis

Persistent LSVC with unroofed coronary sinus empties in to the LA and cause cyanosis

Definition of cyanosis

Deoxy Hb content in the blood more than 4-5g%

Anomalous pulmonary vein connection to the hepatic vein and its usual complication

high chance of obstruction and can result in surgical emergency

Ductal depandancy and when it will come in to picture

usually early infancy and in 2 days when the duct closes babies get symptoms

Also a feature of outflow obstruction not so much inflow

Companion of tricuspid atresia

Usually an ASD to decompress the right atrial chamber

TGA is present in ——-% cases of tricuspid atresia

25%

DTGA —arterial switch — parallel circulation —RX mustard ___ atrial switch and cross circuit—- Pulmonary vein baffle via TV valve to the Systemic RV pump blood via aorta