SSR4 and Truncus arteriosus: Seven infants with CHD also had genetic or syndromic diagnoses confirmed postnatally: five with 22q11.2 deletion (PA × 1, ToF × 2, Truncus arteriosus × 1, IAA × 1); one with CHARGE syndrome (ToF); and one with an SSR4 gene variant associated with X-linked disorder of glycosylation (CoA).