What Is Blue Baby Syndrome?
Reviewed: Dr. Gromatzky
4. Prevalence
It is estimated that 2 million people of all ages in the United States have a congenital heart defect. About 25% of those are critical defects, such as tetralogy of Fallot. An estimated one out of every 3,000 live births involve tetralogy of Fallot.
Methemoglobinemia is an extremely rare condition, so much so that it is difficult to make even an estimate of the numbers of cases. The American Association of Poison Control Centers extrapolated approximately 100 cases per year based on the use of the drug used to treat it. It is very rare in the United States but more common in agrarian countries and rural areas of the U.S. where people drink untreated water from wells.
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