Have you ever been a little worried or curious about the shape of your little one's head? Maybe your head looks a little odd, or one side is flat, or your forehead is protruding? It's normal for a mother or father to feel a little scared when they see something like that. Today we're going to talk about a special condition that can cause such changes in the shape of the head. That's a condition that doctors call craniosynostosis . Don't worry, we'll talk about this simply and in a way that you can understand.
What is Craniosynostosis?
Simply put, craniosynostosis is a condition where the bones of your baby's skull, called the sutures, close prematurely and fuse together. This is a congenital birth defect , meaning it is present at birth.
Now imagine that a newborn baby's head is made up of several bones that fit together like pieces of a puzzle. There are small gaps between these bones. In medicine, we call these gaps ``sutures.'' These sutures are very important. Because, as the baby's brain grows, these sutures allow the head to grow with it. You may have heard of a soft spot on the top of a baby's head called a "fontanelle" (or soft spot) . These spots are formed because these bones have not fused together properly. Usually, these sutures close completely by the age of 2 or 3, and the bones of the skull become tight together.
However, in a baby with craniosynostosis, one or more of these sutures close too quickly, fusing the bones together before the brain is fully developed. What happens then? The head stops growing in the areas where the sutures close too quickly. However, the head continues to grow in the areas where the sutures are still open. This is why babies with craniosynostosis have an unusual head shape, taking on a variety of shapes.
The main problem that can occur from this is an increase in intracranial pressure. Imagine, the baby's brain continues to grow, but there is not enough room inside the head for it to grow. Then the brain is pushed. This increased pressure can limit brain growth, damage brain tissue, and thereby affect the baby's development. That is why it is very important to treat this condition quickly.
What are the types of craniosynostosis?
There are several types of craniosynostosis. They are determined by which suture in the skull closes most quickly. The shape of the baby's head changes accordingly.
- Sagittal craniosynostosis: This is the most common type. It affects the central suture at the top of the head, which runs from front to back. When this suture closes too quickly, the baby's head takes on an elongated, narrow shape (scaphocephaly) . The forehead may appear broad.
- Coronal craniosynostosis: This affects one of the sutures that runs from the ears to the top of the head (on one or both sides). In this type, the baby's forehead may be flattened on one side and the head may take on a broad shape .
- Lambdoid craniosynostosis: This affects the suture at the back of the head. In this type , the back of the baby's head takes on a flattened shape (plagiocephaly) .
- Metopic craniosynostosis: This affects the suture that runs from the top of the nose to the top of the forehead. In this type, the baby's head may take on a triangular shape . It may also look like a ridge rising up from the middle of the forehead.
How common is this condition?
Craniosynostosis is not a very common condition. According to statistics in the United States, this condition affects about one in 2,500 children . This condition is also seen in Sri Lanka.
What are the symptoms of Craniosynostosis?
The main and most obvious symptom of this condition is the abnormal shape of the baby's skull. Normally, our heads are round. In this condition, some parts of the baby's head may look like this:
- Elongation
- Being triangular
- Narrowing
- Flattening
In addition, other features can be seen:
- The baby's soft spot (fontanelle) is absent or very small.
- When you touch the baby's head , it feels like a hard, raised ridge where the stitches are.
- Loss of symmetry in facial features (e.g., one eye being positioned higher or lower than the other).
- The baby's head circumference is smaller than normal for their age.
Sometimes, craniosynostosis can be associated with another underlying health condition. In this case, you may also experience symptoms such as:
- Symptoms of epilepsy (`Seizures`).
- Problems with cognitive development.
- Visual impairment or blindness.
What are the causes of craniosynostosis?
In fact, researchers still don't know exactly what causes it. Sometimes it's caused by a random genetic change (gene change or variation) . Rarely, this genetic change can be linked to family history.
Doctors have found that these things can contribute to the development of craniosynostosis:
- Pressure from outside the skull while the baby is in the womb.
- Abnormalities in the development of the membranes surrounding the scalp and the base of the skull.
- An underlying genetic condition.
What are the genetic conditions that cause craniosynostosis?
Craniosynostosis can occur as a symptom of certain genetic conditions. Some examples are:
- Apert syndrome
- Carpenter syndrome
- Crouzon syndrome
- Pfeiffer syndrome
- Saethre-Chotzen syndrome
These are slightly complicated medical terms, but your doctor will explain them in more detail.
Are there any risk factors?
Research has found that the following may increase the risk of having a baby with craniosynostosis:
- Thyroid disease: For mothers receiving treatment for thyroid disease during pregnancy.
- Certain medications: For mothers who take fertility drugs such as clomiphene citrate before or during early pregnancy.
Whether you are pregnant or planning to become pregnant, it is very important to talk to your doctor about how to maintain good health during pregnancy.
What are the possible complications of Craniosynostosis?
This condition can lead to some complications, which is why prompt treatment is important.
- Increased pressure inside the baby's skull (intracranial pressure).
- Developmental delays or intellectual disability.
- Difficulty breathing.
Some children may have problems with self-esteem and body image , whether they have facial asymmetry or a different head shape than other children. In such cases, support groups, counseling, and psychotherapy can help the child develop a positive self-image.
How do doctors diagnose this? (Diagnosis)
After your baby is born, the doctor will do a physical exam . They will check for soft spots (fontanelles) on the baby's head, and for any lumps or bumps where the stitches have closed. They will also measure the circumference of the baby's head.
If any doubt arises from these tests, an X-ray or CT scan may be performed to confirm the diagnosis.
If it's not detected at birth, your doctor may find it during regular well-child visits as your baby gets older. You may notice that your baby's head isn't growing as fast as the rest of their body, or that they're not meeting developmental milestones for their age.
If you have any concerns about your baby, don't hesitate to mention them when you go to the doctor's office. The doctor will perform the necessary tests and determine the exact situation.
What are the treatments for craniosynostosis?
Treatment options depend on the type of craniosynostosis, the severity of the condition, and the symptoms affecting the child.
- Helmet therapy: Some babies with mild craniosynostosis can be fitted with a special medical helmet . This helmet applies gentle pressure to the skull, which helps to correct the shape of the skull over time.
- Surgery: In most cases, the main treatment for this condition is surgery. Surgery is done to correct the shape of the baby's skull, reduce the increased pressure inside the skull, and allow the baby's brain to grow. The type of surgery and the best time to perform it are determined by the surgeon. Surgery may be performed within the baby's first year .
- Supportive therapy: Additional therapies such as physical therapy, occupational therapy, and speech therapy may be needed to help the baby reach age-appropriate developmental milestones.
Are there any side effects of the surgery?
Side effects from surgery are not uncommon. However, in rare cases, the following may occur:
- Air embolism (air bubble)
- Asymmetry
- Bleeding from the wound (`wound dehiscence`), excessive bleeding (may require a blood transfusion)
- Blood clot
- Bone defects or irregularities
- Cerebrospinal fluid leak
- High body temperature (hyperthermia)
- Infection
- Need for a second surgery
- Symptoms of epilepsy (`Seizures`)
Although these complications are very rare, they can sometimes be life-threatening and lead to premature death.
It's normal to feel scared when you hear about a small child, especially a baby, undergoing surgery. But remember, your baby's doctors are always trying to do what's best for your child. The medical team, including the surgeons, are highly trained and experienced in these types of surgeries. They perform these surgeries with great care, minimizing the risk of complications.
When should I see a doctor?
See a doctor immediately if your child shows symptoms of craniosynostosis:
- If the head is not round, or has a different shape than expected .
- If developmental milestones are delayed .
- If there are high ridges on the head.
If your child has already been diagnosed with craniosynostosis, if he or she experiences symptoms of epilepsy (seizures) or has difficulty breathing , call 911 (1990 Suwaseriya in Sri Lanka) immediately or go to the nearest emergency room.
What should I ask my doctor?
You can ask your child's doctor questions like these:
- What is the most likely cause of this condition called craniosynostosis?
- What treatment do you recommend?
- What are the risks of surgery?
- What happens if we decide not to have surgery?
- Does the shape of my baby's head affect brain function?
- If I have another child, what are the chances that that child will also have this condition?
What is the future of these children? (Prognosis)
The prognosis of a child can vary depending on the child's overall health and how many sutures are closed in the skull. Most children can expect a good recovery if they are diagnosed and treated early. Treatment, especially during the baby's first year, can minimize developmental problems.
If craniosynostosis is a symptom of an underlying genetic condition, your child's future may be slightly different. Your doctor can give you the best information about this.
What is the life expectancy of someone with Craniosynostosis?
Most babies diagnosed with craniosynostosis have a normal lifespan , especially if doctors detect and treat the condition within the first few years of life. However, the lifespan of each child can vary depending on the severity of the condition.
Can Craniosynostosis be prevented?
There is currently no known way to prevent this condition. Some prenatal genetic testing done during pregnancy can identify genetic changes that may lead to this condition. A genetic counselor can educate you about your genetic risks before you become pregnant and about treatment options if your baby is born with this condition.
Finally, things to remember (Take-Home Message)
As new parents, it's normal to feel anxious and scared when you learn that your baby has a health condition like craniosynostosis. However, your baby's medical team will diagnose the condition and create a treatment plan to prevent complications that can affect your baby's brain development. With timely treatment, most babies with craniosynostosis will grow up healthy and well. If you have any questions about how you can help your baby, talk to your baby's doctor. You're not alone, and doctors, nurses, and, if needed, counselors are there to help you.
` Craniosynostosis, skull, baby's head, sutures, brain development, surgery, birth defects, skull shape, fontanelle
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