About 1 in every 120 babies are born with congenital heart disease (CHD), of which about 25 percent is critical, requiring special care early in life. CHD is responsible for more deaths in the first year of life than any other birth defect, but often outcomes can be improved with early detection. Now a group of physicians and scientists has published an important paper that recommends strategies for national screening for critical CHD, using a simple, noninvasive test called pulse oximetry that measures oxygen in blood. Low oxygen levels would trigger further investigation.
