Commonest cause of hea failure in infancy is:
High-Yield Explanation
--> The most common cause of Congestive hea failure (CHF) in infants-- Congenital hea disease. OTHER IMPOANT ONE LINERS: --> MC congenital hea disease in children --> VSD --> MC congenital acyanotic hea disease in children --> VSD --> MC congenital hea diseases affected by infective endocarditis in children --> VSD --> Congenital hea disease which is least commonly affected by Infective endocarditis --> ASD --> MC congenital hea disease causing moality in 1st wk of life --> Hypoplastic Left Hea Syndrome.