If you are a mother-to-be or someone in your family is expecting a baby, it is very important to know everything about the health of your baby, isn't it? Sometimes, there are cases where the baby's head, brain, or spinal cord do not develop properly in the womb. These are conditions that we call Cephalic Disorders . Don't be afraid when you hear this name, although it is a bit complicated, we will talk about it simply, in a way that you can understand.
What are these Cephalic Disorders?
Simply put, cephalic disorders are conditions that occur during the embryonic stage, that is, when a baby is developing in the womb, when the brain and spinal cord do not develop properly. These are malformations of parts of the nervous system. These conditions can sometimes cause abnormalities in other parts, organs, and systems of the body.
The word "cephalic" comes from an ancient Greek word meaning "head." Although these conditions primarily involve the brain, they can also affect the spinal cord, as the brain and spinal cord develop together. Together, they form our Central Nervous System (CNS) .
These conditions can range from mild to very severe. In some severe cases, the fetus may not be able to survive these conditions. This can lead to miscarriage within the first 20 weeks of pregnancy, or stillbirth after 20 weeks.
Are there types of cephalic disorders?
Yes, medical specialists classify these conditions based on three main factors:
1. Site of impact: What parts of the central nervous system (CNS) are affected? Are other parts, organs, or systems of the body affected?
2. Nature of the effect: How have the affected parts of the central nervous system developed differently than expected? That is, are they larger, smaller, or have they changed in some other way?
3. Cause: What is the cause of this developmental delay? Is it due to an event or environmental factor that affected the pregnant mother, or is it genetic?
How common are these situations?
Cephalic disorders are actually very rare conditions. They affect between 0.14% and 0.16% of newborns. Research shows that these conditions are responsible for between 3% and 6% of stillbirths.
What are the main types of cephalic disorders?
These situations can mainly be divided into three types:
- Neural tube defects
- Size differences ( in the head or brain)
- Shape differences ( in the skull or brain)
Neural Tube Defects
The neural tube is a special structure that develops in the fetus during the first month of pregnancy. It is from this that the brain, spinal cord, and spinal cord later develop. In other words, it is the foundation of the baby's nervous system. Therefore, these conditions related to the neural tube directly affect the development of the central nervous system (CNS).
These conditions can cause some steps in the development of the brain or spinal cord to go wrong, or not happen at all. Here are a few examples:
- Anencephaly: This is a very serious condition in which most parts of the brain and skull are underdeveloped or do not develop at all.
- Encephalocele: A hole in the skull that causes brain tissue and cerebrospinal fluid to protrude from the skull like a sac.
- Spina bifida: Failure of the spinal cord to develop fully. There are other forms of this, such as meningocele and myelomeningocele.
- Chiari malformation: A condition in which part of the brain protrudes through the opening at the bottom of the skull. (Type II can cause a condition called myelomeningocele called spina bifida.)
Size Differences
These are changes that affect the size of the head or central nervous system. Think about it, sometimes the head can be very big, sometimes it can be very small.
- Differences in skull size:
- Macrocephaly: Having an abnormally large head.
- Microcephaly: Having an abnormally small head.
- Brain size changes:
- Megalencephaly: Having an abnormally large brain.
- Microencephaly: Having an abnormally small brain.
Shape Differences
These are changes in the shape of the skull or brain.
- Changes in skull shape:
- Acrocephaly: A high or spherical head.
- Brachycephaly: The head is broad and flat at the back, instead of round.
- Changes in brain shape:
- Holoprosencephaly: The hemispheres (sides) of the brain are not separated from each other.
- Lissencephaly: A smooth brain without wrinkles or fingerprint-like bumps on the surface of the brain.
- Hydranencephaly: A condition in which the cerebral hemispheres do not develop properly due to an excess of cerebrospinal fluid in the skull. (This is different from a condition called hydrocephalus.)
What are the symptoms of these conditions?
The symptoms of cephalic disorders vary greatly depending on the condition. Because there are so many of these conditions, the symptoms can also range widely.
Some common symptoms that are often seen are:
- Intellectual disabilities.
- Seizures or epilepsy.
- Muscle control problems and movement disorders.
- Partial or complete loss of sensory abilities (sight, hearing, smell, taste, touch).
- Weakness or paralysis caused by problems with the spine or spinal nerves.
- Disturbances in automatic body processes such as digestion and breathing.
- Pain (this can be caused by a variety of reasons and can vary from person to person).
In addition to these neurological disorders, other systems in the body can also be affected or have problems. These can vary greatly depending on the underlying cause and condition. Your doctor can better explain the symptoms that may occur depending on your specific condition.
What are the causes of Cephalic Disorders?
Anything that affects the way the brain or nervous system develops can cause a cephalic disorder. These possible causes fall into several main categories:
- Genetics: Many cephalic disorders can be caused by DNA mutations inherited from parents or newly occurring.
- Maternal medical conditions during pregnancy: Various medical conditions can affect the development of the fetus. For example, metabolic diseases and nutritional deficiencies (especially minerals such as copper, zinc and folate (folic acid - vitamin B9). Also, some infections such as toxoplasmosis, cytomegalovirus or rubella can cause these conditions.
- Exposure to certain substances: Certain substances, medications, or environmental conditions can affect the development of the fetus. Experts also call these "teratogens." Examples: toxic metals such as lead and mercury, some antibiotics, or blood thinners.
- Environmental conditions: Exposure to radiation, such as from X-ray machines, or spending time in hot tubs or saunas, can also affect the fetus. Physical injuries during pregnancy can also increase the risk of damage to the fetus and affect the development of the nervous system.
What are the risk factors for these conditions?
There are many risk factors for cephalic disorders. Some factors, like your genes and family history, are beyond our control. Some, like avoiding certain activities or tasks during pregnancy, or limiting the consumption of certain types of fish (fish that eat other fish have high levels of mercury) during pregnancy, can be managed.
Your doctor can help you determine your risk factors and what you can do about them. If someone in your family has cephalic disorders, they may also recommend that you see another specialist, such as a genetic counselor.
What are the complications of Cephalic Disorders?
Like these conditions, their complications also vary widely. Some conditions have only minor complications, or may have no complications at all. Others have severe complications, such as respiratory problems, seizures, or heart disease. In the most severe cases, cephalic disorders prevent the brain and nervous system from developing properly. This is why severe conditions are often life-threatening.
Your doctor is the best person to tell you what complications your child may have and what you can do about them.
How are cephalic disorders diagnosed?
Many cephalic disorders can be diagnosed before birth using imaging technologies such as sonography. Some can be diagnosed after birth through physical examination. In other cases, further diagnostic, imaging, and lab testing may be required to accurately identify the underlying condition.
Here are some tests that can be done before and after the baby is born:
- X-ray or Computed Tomography (CT) scan.
- Magnetic Resonance Imaging (MRI) scan.
- Lab tests on blood or other body fluids.
- Genetic testing (before or after birth).
Depending on the suspected condition, symptoms, and other factors, other tests may be done after the baby is born. Your doctor is the best person to tell you more about the tests they recommend.
How are these conditions treated? Can they be cured?
Treatments for cephalic disorders vary widely. Some conditions are untreatable, and their effects are so severe that they are impossible to live with.
Some conditions can be treated with surgery or other methods. However, many cephalic disorders cannot be treated directly, and the only option is to try to manage the symptoms. This may involve the use of medications, surgery, assistive devices, and corrective braces.
Because this can vary greatly, your doctor is the best person to explain what options are available to you or your loved one. They can tell you what treatments and options are available, what they recommend, and what you can do for your child to get the most out of treatments or make them more effective.
What can I expect if my child has a cephalic disorder?
Often, you, the parent, guardian, or other caregiver, are the first to know that your child has a cephalic disorder. This is because most cephalic disorders are diagnosed at birth or within the first few years of life. This can vary greatly, so your doctor is the best person to tell you what to expect.
Some cephalic disorders may have only a minor impact on a child's life and can be managed with a little help or changes. Some can even be corrected early in life with surgery or other medical procedures.
However, cephalic disorders are often severe. They can reduce a child's ability to care for themselves, make decisions for themselves, or live independently. In many cases, children with these conditions have severe brain damage. They may not be able to care for themselves or understand their condition.
How long do these conditions last?
Cephalic disorders are congenital conditions, meaning they are present at birth. While some can be partially or completely corrected after birth, many cannot. If they cannot be corrected or treated, they are lifelong conditions.
What is the outlook for these situations?
The outlook for cephalic disorders varies greatly from person to person, even among people with the same condition. This is because these conditions can develop in unique ways for each person. Your child's doctor is the best person to tell you about the likely outlook and what you can do to improve it.
Can Cephalic Disorders be prevented?
These conditions can occur unexpectedly, so they cannot be prevented with 100% certainty. While the genetic conditions that cause them are often inherited, they can also be caused by spontaneous mutations, meaning they are not passed on from you to your child.
Although it cannot be completely prevented, there are things you can do to reduce the risk of problems with fetal development during pregnancy.
What can I do to reduce the risk?
There are several ways to reduce the risk of problems with fetal development:
- Avoid teratogens: Avoid exposure to heavy metals, chemicals, and medications that have a high risk of disrupting fetal development. Also avoid alcohol, non-prescription drug use, and tobacco products (including vaping).
- Protect yourself from dangers: Avoid activities that could cause physical harm to the fetus during pregnancy. Also, avoid activities that involve high temperatures, such as hot tubs and saunas.
- Know your family risk: If someone in your family has a history of cephalic disorders, talk to your doctor about whether you should get genetic testing before you get pregnant or early in your pregnancy. If your family risk is unknown, your doctor will advise you on whether you should get tested.
- Prioritize nutrition: If you are pregnant or planning to become pregnant soon, you should prioritize nutrition during pregnancy. Make sure you get the recommended daily intake of key nutrients like folate (also known as folic acid or vitamin B9). In Sri Lanka, folic acid is routinely given to expectant mothers. Your doctor will advise you on the amount you need and other nutrients you should take. You can also seek advice from your local Family Health Worker (PHM).
How do I take care of my child?
Whether and how a child with a cephalic disorder can be cared for depends on many factors. This includes the child's condition and its severity. Many children with cephalic disorders are so severely affected that they require lifelong medical care. Some may only need frequent medical visits. Others may require 24/7 skilled care that can only be provided in a medical facility.
Because this answer can vary greatly, your doctor is the best person to tell you whether your child, or your loved one with this condition, can take care of themselves. Your doctor can also guide you on how to best care for your child.
Expectant parents never want to hear that something is wrong with the development of the fetus or that their newborn baby has a serious condition. Some cephalic disorders are minor, meaning they have little or no impact on the baby's life. Others can be treated. Unfortunately, some are severe enough to be fatal or cause lifelong problems.
It's normal to feel scared, anxious, or angry when a situation like this affects your life in some way. During all of this, it's important to focus on taking care of yourself and your loved ones. Your doctors can guide you through this process and answer questions about what to expect. They can also help you find the resources and support you need to understand what's happening and what you can do. No matter the end result, there are things you can do to cope, manage, or heal from whatever happens, and it's not a process you have to go through alone.
The most important things to remember (Take-Home Message)
- Cephalic disorders are conditions that occur when a baby's brain and spinal cord do not develop properly in the womb.
- These are rare, but can range from minor to very severe.
- The reasons are varied: genetics, maternal conditions during pregnancy, exposure to certain substances, etc.
- Symptoms, treatment, and outlook vary greatly depending on the condition. It is essential to seek medical advice.
- Although it cannot be completely prevented, the risk can be reduced to some extent by following a healthy lifestyle during pregnancy (especially taking folic acid) and avoiding risk factors.
- It's normal to feel scared in a situation like this. You're not alone, get help from doctors and support groups.
` Cephalic Disorders, Brain Deformities, Neural Tube Defects, Microcephaly, Hydrocephalus, Pregnancy Health, Fetal Development
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