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Health & Baby

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Safe Sleeping May Cause Flat Heads for Babies

WebMD Health News

Sept. 20, 2000 -- Since the early 1990s, the "Back to Sleep" campaign -- which recommends that all healthy infants sleep on their backs to decrease the risk of sudden infant death syndrome (SIDS) -- has been a roaring success, cutting the SIDS rate by about 40%.

That's great news, but one of the seldom discussed side effects of this campaign -- launched by the American Academy of Pediatrics (AAP) -- is a marked increase in cases of positional plagiocephaly, a condition usually resolved by time and Mother Nature. It occurs when babies sleep exclusively on their backs and have consistent pressure on their soft, forming skulls. As a result, they develop flat spots on their heads.

In fact, one study in the journal Pediatrics found that cases of positional plagiocephaly have increased sixfold since the "Back to Sleep" campaign began. Until researchers were able to pinpoint the reason for this increase, many doctors mistook this fairly harmless condition as something more serious called craniosynostosis -- a premature fusion of the skull that can impair brain growth.

According to many experts, positional plagiocephaly usually disappears within several months after the baby has begun to sit up. Still, across the country, many parents are opting to put their kids in helmets that coax their heads into a more symmetrical shape. Helmets cost about $3,000 and some insurance companies may pick up the tab. Children must wear them for about 23 hours a day for an average of four and a half months.

For babies with less severe flattening, the AAP recommends placing them on their stomachs when they are awake and supervised, a strategy some activists are calling "Stomach to Play and Back to Sleep." Other recommendations include putting children to sleep on their backs but in varying places in the room, so their attention will be drawn in different directions. Also, time in car seats and other infant carriers should be limited, because they can also increase the risk of flat spots.

Joseph Shin, MD, an assistant professor of surgery and director of the Yale Craniofacial Center in New Haven, Conn., sees one to two cases of plagiocephaly each week.

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