Study of prevalence & risk factors of congenital heart defect (Review Article)

Congenital heart defects are known as the state that comes from birth and influences on structure and function of baby's heart, The different types of defects can range from mild (e.g., a small hole between the heart chambers) to hard (like a flaw or weakness in a part of the heart).
This article is a review article in which the articles published in Farsi and English that the bases valid as Medline, Google Scholar, Pubmed, Springer, SID index has been used, as well as for the study of keywords associated with the use of MESH keywords in identifying and no time limit listed in the databases were searched.
Result The prevalence of congenital heart defect, in general, less than one per cent in newborn. The ventricular wall abnormalities defect (VSD), atrial septal defect of (ASD), patent ductus arteriosus (PDA) and tetralogy of Fallot (TOF) Top among the most types of congenital heart anomalies. Factors such as the age of the parents at conception, maternal risk of diabetes, influenza and febrile illness during pregnancy, drug use during pregnancy and taking a multivitamin before and during the Pregnancy were influenced of newborns with congenital heart defects.
According to studies need to be conducted in the presence of multiple risk factors for these disorders, seem to have a detailed plan to Study of More about the factors that affect the risk of developing these disorders, as well as interventions to reduce risk factors identified particularly during pregnancy.