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Craniosynostosis at University Health System
Craniosynostosis at University Health System
About Craniosynostosis
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What is Craniosynostosis (CRAY-nee-o-SIN-os-Toe-sis)
It is very common for a newborn baby to have a misshapened head immediately after birth. This can be caused by the position of the baby in the womb or by the pressure of the birth canal during delivery. In these cases, the shape should begin to resolve in the first couple of days of life. A persistent misshapened head should be evaluated for craniosynostosis, a relatively common condition occurring in as many as one in one thousand births.

To understand craniosynostosis, it’s important to first appreciate the changes happening inside a newborn’s brain. Immediately following birth, the baby’s brain undergoes an extremely rapid phase of growth and development. It is calculated that the volume and size of the newborn’s brain will double in size in nine months and triple in size in 36 months. In order to accommodate such rapid brain growth, your baby’s skull cap must expand rapidly as well. Rather than being one single large piece of bone, his/her skull is made up of several bones (frontal, parietal, occipital, squamosal) which are held together by fibrous-like hinges called “sutures.” These sutures respond to brain growth by “stretching” and producing new bone, thereby allowing the skull to grow along with the underlying brain.

Should any of these sutures close or fuse before birth or soon after, while the brain is growing, craniosynostosis occurs. The term cranial stenosis and simply synostosis are used to describe this condition. Because the brain is normal, it continues to grow at its programmed rapid rate. However, the closed suture delays proper and parallel bone growth which leads the brain to take the path of least resistance and ultimately the shape of the brain, skull and even face become distorted. Each suture premature closure will lead to a specific abnormal head shape and unique set of problems.

Misshapened Head   
If you are concerned about your newborn’s misshapened head, we are happy to provide an initial opinion at no-cost through email with photographs. Please contact us for instructions.

 

 

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