Critical Congenital Heart Defects

All babies born in Missouri should be screened for critical congenital heart defects (CCHDs) 24 to 48 hours after birth. CCHDs happen when a baby’s heart or major blood vessels do not form correctly, causing a defect. There are many different types of heart defects that range from mild to severe. Babies with “critical” heart defects need urgent treatment, which may include medicine or surgery. Without treatment, these defects can lead to death or can cause serious health issues.

CCHD screening is a simple test done to determine the amount of oxygen in the baby’s blood. Low oxygen levels can be a sign of CCHD. The test is done by a health care provider using a device called a pulse oximeter. The pulse oximeter uses an infrared light sensor gently wrapped around the baby’s right hand and one foot. Light passes through the skin and tissue and the sensor estimates the blood oxygen level. The test is painless and takes just a few minutes.

Most babies who pass the CCHD screening will not have a CCHD. However, it is important to know that screening cannot identify every baby with a heart problem.

Laws & Regulations

Chloe's Law -- critical congenital heart disease screening, requirements--rulemaking authority.
191.334.

Critical Congenital Heart Disease Screening Rules 19 CSR 40-12.010

Publications & Manuals

  • Newborn Screening for Critical Congenital Heart Defects

Additional Resources

General Information

Resources for Parents

Resources for Health Care Providers