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What Is Cerebral Palsy? Signs, Causes, Types and Treatment
By: by Amino Science
Most people probably recognize the word cerebral as having to do with the brain. The word palsy, on the other hand, might be a little fuzzy for some. Palsy is a health condition in which muscles are weak or a person has difficulty using their muscles. Cerebral palsy (CP) is a condition in which a baby’s brain did not develop correctly or a baby suffered an injury to the brain which has caused developmental damage. Whether a baby’s brain is underdeveloped or damaged due to injury, cerebral palsy means the baby or child has difficulty with motor skills, which includes controlling his or her muscles.
Cerebral palsy is the leading cause of disability in children and the most common type of motor disability in children. The Centers for Disease Control and Prevention (CDC) estimates that an average of 1 in 323 children in the United States has cerebral palsy.
We’re here to answer some common questions about cerebral palsy including:
- What is cerebral palsy?
- What causes cerebral palsy?
- What are the types and symptoms of cerebral palsy?
- How is cerebral palsy treated?
We’ll also provide a list of cerebral palsy risk factors that you can use to start a conversation about cerebral palsy with your doctor or pediatrician.
Cerebral Palsy Causes
A baby’s brain begins developing in the womb but isn’t fully developed at birth. Sometimes the cause of cerebral palsy is that a baby’s developing brain doesn't fully mature. Another common cause of CP is brain damage while the brain is still developing. It can be difficult for doctors to determine exactly when an injury occurred in a cerebral palsy patient since the damage could have been sustained at any point before, during, or after the birthing process. Furthermore, symptoms of cerebral palsy don’t usually begin appearing until months or even years after a child is born. The Cerebral Palsy Group notes the following statistics when it comes to cerebral palsy patients:
- 70% receive their brain injuries before birth
- 20% receive their injuries during birth
- 10% receive their injuries after birth
Cerebral Palsy Risk Factors
The risk of cerebral palsy is greatest during fetal development and the birthing process when complications such as birth asphyxia, or lack of oxygen, can occur and harm the baby's developing brain. Other risk factors include:
- Low birthweight
- Premature birth
- Multiple births (twins, triplets)
- Fertility treatments
- Infection during pregnancy
- Infection during infancy
- Jaundice
- Underlying health issues in the mother
- Complications during birth
- Injury
Signs of Cerebral Palsy
Cerebral palsy is not a progressive disease, meaning symptoms do not worsen over time. Symptoms appear at varying ages. Patients may exhibit developmental disabilities as early as a few months old or may not show any signs of cerebral palsy until age 4 or 5. The CDC outlines the following early signs of cerebral palsy by age group. The CDC also notes that babies or children may exhibit some of the following symptoms of cerebral palsy without actually having the disorder.
Younger than 6 months:
- Baby’s head lags when picked up while lying on his or her back
- Baby feels stiff
- Baby feels floppy
- When cradled in your arms, baby seems to overextend his back and neck, as if he’s pushing away from you
- When picked up, baby’s legs get stiff and cross or scissor
Older than 6 months:
- Baby doesn’t roll over in either direction
- Baby can’t bring his or her hands together
- Baby has difficulty bringing his hands to his mouth
- Baby reaches out with only one hand while the other is kept fisted
Older than 10 months:
- Baby crawls in a lopsided way, pushing off with one hand and leg while dragging the other hand and leg
- Baby scoots around on rear end or hops on knees but doesn’t crawl on all fours
Types of Cerebral Palsy
There are varying types of CP, each kind depending upon which part of the brain has been affected by injury or underdevelopment. This group of disorders doesn't just affect coordination and gross motor skills, but some cases of cerebral palsy can also impair hearing, vision, and sensation.
The CDC lists the following types of cerebral palsy.
Spastic Cerebral Palsy
Spastic cerebral palsy is the most common type of cerebral palsy, affecting approximately 80% of patients. Those with spastic cerebral palsy experience stiff muscles and unusually increased muscle tone (spasticity), which in turn make the patient’s movements awkward. The whole body or just one side of the body may manifest symptoms. Muscles that may be affected by spastic cerebral palsy include:
- Legs
- Arms
- All four limbs
- The trunk/ torso
- The face
Spastic quadriplegia is a type of spastic CP that disrupts the function of the upper and lower limbs and body, which can make walking impossible. Patients with spastic quadriplegia may be prone to chronic seizures, have difficulty hearing and speaking, and have associated learning disabilities.
Not as overpowering as spastic quadriplegia, spastic diplegia only influences the lower half of the body and typically doesn't prevent walking. Spastic diplegia can also be marked by balance and coordination trouble, fatigue, and seizures.
Spastic hemiplegia is another form of CP that affects only one side of the body. Most children are able to adapt to the condition and walk.
Dyskinetic Cerebral Palsy
Patients with dyskinetic cerebral palsy experience difficulty sitting and walking due to issues with muscle control and movement. Those with dyskinetic cerebral palsy (also known as dystonic and athetoid) have trouble moving their hands, arms, feet, and legs, making their movements either slow or fast. Dyskinetic cerebral palsy affects other parts of the body such as the face and tongue, which can result in problems with swallowing and talking.
Ataxic Cerebral Palsy
Ataxic cerebral palsy affects balance and coordination. Those with ataxic CP often have difficulty with tasks such as walking, quick movements, controlling their hands or arms, and anything requiring a lot of control, like writing, tying shoes, or buttoning buttons.
Mixed Cerebral Palsy
Some cerebral palsy patients have a mix of symptoms and can’t be placed under any one type of the disorder. Spastic-dyskinetic is the most common type of mixed cerebral palsy.
Diagnosing Cerebral Palsy
If a child is showing signs of cerebral palsy, the first visit is usually to the pediatrician. The doctor will examine the baby or child and assess his or her symptoms. If the physician suspects cerebral palsy, he or she will often refer the patient to a pediatric neurologist. Between the pediatrician and the neurologist, several tests will be run to check for cerebral palsy as well as to rule out other possible conditions. Common tests used to diagnose cerebral palsy include:
- Brain MRI
- Cranial ultrasound
- Electroencephalogram (EEG)
- Lab tests
- Vision tests
- Hearing tests
- Speech tests
Cerebral Palsy Treatment
Children with cerebral palsy will experience developmental delays but not necessarily a shortened life expectancy. A child's life expectancy will vary by patient and will depend upon the type and severity of symptoms.
There are treatments available for both children and adults with cerebral palsy. Some patients find help with medications, particularly medications to relieve muscle tightness and treat pain. These medications offer some patients increased mobility and motor function.
In addition to medications, the Mayo Clinic highlights the following areas that cerebral palsy patients and their parents may find helpful in managing their condition.
- Pediatrics to oversee treatment and care
- Pediatric neurology to diagnose and treat brain and neurological disorders in children
- Orthopedic surgery for muscle and bone conditions and disorders (see how Heal, a safe and side-effect-free EAA supplement, can help speed up recovery after surgery)
- Physical therapy to improve muscle tone, strength, and mobility
- Occupational therapy to help with daily activities
- Speech-language pathology to diagnose and treat speech and language disorders
- Developmental therapy to help children develop age-appropriate behaviors and skill sets
- Psychology or psychiatry to help parents cope with a child’s disability
- Recreational therapy to help children expand cognitive skills and abilities
- Social services to help families find services and create care plans
- Special education to help identify and address learning disabilities
If your child begins exhibiting any of the signs listed above, especially if he or she has any of the risk factors mentioned above, it is best to get him or her to a physician for an evaluation.
It’s important to note that not all babies or children exhibiting some symptoms of cerebral palsy actually have the disorder. Also, just because your child has sustained a head injury does not mean he or she will develop the disorder.
If you are unsure whether your child’s development is occurring at a healthy pace, talk with your pediatrician. It’s the only way to put your mind at ease and ensure your baby’s health. If your child does have cerebral palsy, then speak to your pediatrician about putting together a plan of care and coordinating a team of medical professionals to help you and your child learn the best way to manage symptoms and improve quality of life.
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