[Parental smoking during early pregnancy and congenital heart defects].

Objectives: Analyze the possible role that can play parental smoking during early pregnancy on the occurrence of different types of congenital heart defects (CHD).

Materials And Methods: Over a period of 4.5 years (between January 1, 2006 and June 30, 2010), data on all children who had an echocardiography were collected and entered in the National Register of Paediatric and Congenital Heart Disease, Lebanese Society of Cardiology, Beirut.