The aim of this study was to determine the incidence of congenital heart disease through the neonates who were been performed transthorasic echocardiography.

We evaluate retrospectively a total of 3715 neonates who underwent echocardiographic assesment because of the suspician of congenital heart disease between January 2012 – December 2013. 2056 of the patients (%55,3 ) were male and 1659 of the patients (%44,7) were female.

Apart from the most common diagnosis of patent ductus arteriosus (%24,1), atrial septal defect (%15,7) and ventricular septal defect (%11,5) were the most frequently identified congenital heart diseases.

In a total of 138 (3,7%) patients with cyanotic congenital heart diseases were determined by just transthorasic echocardiography. Type of cyanotic congenital heart disease were hypoplastic left heart syndrome in 7 (0,2%), tetralogy of Fallot in 20 (0,5%), pulmonary atresia in 48 (1,3%), tricuspid atresia in 11 (0,3%), Ebstein’s anomaly in 5 (0,1%), transposition of the great arteries in 22 (0,6%), truncus arteriosus in 4 (0,1%), double-outlet right ventricle in 13 (0,3%), double-inlet left ventricle in 4 (0,1%), double-outlet left ventricle in 2 (0,05%), total anomalous pulmonary venous return in 2 (0,05) consequtively.

In conclusion transthorasic echocardiography is a useful and essential method to detect serious congenital heart diseases in neonates. And we believe that it should be perfomed immediately if there is a suspician about congenital heart disease.