Dr Patrick Sullivan, the clinical fellow in paediatric cardiology at Seattle Children's Hospital was the lead study author. His research team studied the hospital records of 14,128 children born with heart defects between 1989-2011 and compared them to the records of more than 62,000 children born without heart defects in the same year.
|English: Atrial septal defect (ASD) is a form of congenital heart defect that enables blood flow between the left and right atria via the interatrial septum. Azərbaycan: Qulaqcıqlararası çəpərin qüsuru - anadangəlmə ürək qüsuru, qulaqcıqlararası çəpərin tam inkişaf etməməsi nəticəsində arakəsmənin açıq qalması (Photo credit: Wikipedia)|
A previous research from the Royal College of Physicians, published in 2010, reported a 15% increase in the risk of a baby having a heart defect born to smoker mothers.
Newborns to smoker mothers are at 50 to 70 percent increased risk of suffering from anomalies of the valve and vessels that carry blood to the lungs (pulmonary valve and pulmonary arteries); about a 20 percent greater risk for holes in the wall separating the two collecting chambers of the heart (atrial septal defects).
All of these defects often require invasive procedures to correct.