Sudden infant death syndrome (SIDS) refers to the unexpected, unexplained death of a child less than one year old. SIDS is rare during the first month of life. It peaks at 2 to 4 months of age, then gradually decreases.
Experts do not know the exact cause of SIDS. Many theories exist. Potential causes include:
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Risk factors that increase the chance of SIDS include:
A baby that dies of SIDS typically appears healthy. The baby may have had a cold or gastrointestinal infection in the two weeks prior to death. There usually are no warning signs that a baby is about to have SIDS.
All possible illnesses and causes of death must be ruled out before a diagnosis of SIDS is made. A complete investigation will take place including:
Emergency medical personnel should be called as soon as the infant is discovered not breathing. Infant CPR should be started right away. Seek medical care right away even if the baby starts breathing again. The cause of the incident should be fully evaluated. Families may need grief counseling after the death. Some parents find support groups helpful.
There is no way to predict which infants will die of SIDS. Several actions may help you lower your child's risk of SIDS:
Make sure anyone else caring for your child is also aware of these recommendations.
National SUID/SIDS Resource Center
SIDS Calgary Society
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11/14/2011 DynaMed's Systematic Literature Surveillance http://www.ebscohost.com/dynamed/ : Task Force on Sudden Infant Death Syndrome. SIDS and other sleep-related infant deaths: expansion of recommendations for a safe infant sleeping environment. Pediatrics. 2011;128(5):1030-1039.
Last reviewed March 2013 by Michael Woods, MD
Last Updated: 3/15/2013