Cerebral Palsy|CP
Cerebral palsy (CP) is a group of permanent movement disorders that appear in early childhood. Signs and symptoms vary between people. Often, symptoms include poor coordination, stiff muscles, weak muscles, and tremors.
There may be problems with sensation, vision, hearing, swallowing, and speaking.
Often babies with cerebral palsy do not roll over, sit, crawl, or walk as early as other children their age.
Difficulty with the ability to think or reason and seizures each occurs in about one third of people with CP.
While the symptoms may get more noticeable over the first few years of life, the underlying problems do not worsen over time.
What Are You Looking For?
Cerebral Palsy
1. Causes
2. Diagnosis
3. Common Symptoms
4. Classification
5. Management and Treatment
6. Prognosis
7. Barriers to Participation
8. Epidemiology
9. History
10. Research
1. Causes
Cerebral palsy is due to abnormal development or damage occurring to the developing brain. This damage can occur during pregnancy, delivery, the first month of life, or less commonly in early childhood. Structural problems in the brain are seen in 80% of cases, most commonly within the white matter. More than three-quarters of cases are believed to result from issues that occur during pregnancy.
While in certain cases there is no identifiable cause, typical causes include:
– problems in intrauterine development (e.g. exposure to radiation, infection, fetal growth restriction)
– hypoxia of the brain (thrombotic events, placental conditions)
– birth trauma during labor and delivery
– complications around birth or during childhood.
– Multiple-birth infants are also more likely than single-birth infants to have CP. They are also more likely to be born with a low birth weight.
2. Diagnosis
CP is the most common movement disorder in children. It occurs in about 2.1 per 1,000 live births. Cerebral palsy is defined as “a group of permanent disorders of the development of movement and posture, causing activity limitation, that are attributed to non-progressive disturbances that occurred in the developing fetal or infant brain.”
The diagnosis of cerebral palsy has historically rested on the person’s history and physical examination. A general movements assessment, which involves measuring movements that occur spontaneously among those less than four months of age, appears to be most accurate. It is a developmental disability.
Once a person is diagnosed with cerebral palsy, further diagnostic tests are optional. Neuroimaging with CT or MRI is warranted when the cause of a person’s cerebral palsy has not been established – an MRI is preferred over CT due to diagnostic yield and safety. When abnormal, the neuroimaging study can suggest the timing of the initial damage. The CT or MRI is also capable of revealing treatable conditions, such as hydrocephalus, porencephaly, arteriovenous malformation, subdural hematomas and hygromas, and a vermian tumour (which a few studies suggest are present 5–22% of the time). Furthermore, an abnormal neuro-imaging study indicates a high likelihood of associated conditions, such as epilepsy and intellectual disability.
The age at which CP is diagnosed is important …
3. Common Symptoms
Language:
Speech and language disorders are common in people with cerebral palsy.
Overall language delay is associated with problems of intellectual disability, deafness, and learned helplessness. Children with cerebral palsy are at risk of learned helplessness and becoming passive communicators, initiating little communication.
Early intervention with this clientele, and their parents, often targets situations in which children communicate with others so that they learn that they can control people and objects in their environment through this communication, including making choices, decisions, and mistakes.
The incidence of dysarthria is estimated to range from 31% to 88%.
There are three major types of dysarthria in cerebral palsy:
– spastic
– dyskinetic (athetosis)
– ataxic.
4. Classification
CP is classified by the types of motor impairment of the limbs or organs, and by restrictions to the activities an affected person may perform.
There are three main CP classifications by motor impairment:
– spastic
– ataxic
– athetoid/dyskinetic.
Additionally, there is a mixed type that shows a combination of features of the other types.
These classifications also reflect the areas of the brain that are damaged.
5. Management and Treatment
In those at risk of an early delivery magnesium sulphate appears to decrease the risk of cerebral palsy. It is unclear if it helps those who are born at term. Cooling high-risk full-term babies shortly after birth may reduce disability.
Treatment of cerebral palsy is a lifelong process focused on the management of associated conditions. It tries to allow healthy development on all levels. The brain, up to about the age of 8, is not set and has the ability to reroute many signal paths that may have been affected by the initial trauma; the earlier it has helped in doing this the more successful it will be.
CP is partly preventable through immunization of the mother and efforts to prevent head injuries in children such as through improved safety.
There is no cure for CP; however, supportive treatments, medications, and surgery may help many individuals.
Treatment may include one or more of the following:
The treatment and the therapy should start in the initial stages so as to give your child a better future.
The treatment also includes therapy of different types namely:
Physical Therapy
This therapy mainly includes working on the activities related to legs and hands. Walking, clutching and stretching are some of the most common activities related to the physical therapy. This helps the body to improve its flexibility and mobility.
Physiotherapy programs are designed to encourage the patient to build a strength base for improved gait and volitional movement, together with stretching programs to limit contractures. Some experts believe that lifelong physiotherapy is crucial to maintaining muscle tone, bone structure, and prevent dislocation of the joints.
It is very is important that children with this acute problem are encouraged towards regular physiotherapy, exercises, games and outdoor activities.
Apart from a definite improvement in physical skills, the fun factor can also bring the mental benefits and stress relief. Just make sure you choose activities that your child enjoys.
Here’s a list of some activities that would be helpful for your child.
Botulinum toxin injections are given into muscles that are spastic or sometimes dystonic, the aim being to reduce the muscle hypertonus that can be painful.
A reduction in muscle tone can also facilitate bracing and the use of orthotics. Most often lower extremity muscles are injected.
Botulinum toxin is focal treatment, meaning that a limited number of muscles can be injected at the same time.
The effect of the toxin is reversible and a reinjection is needed every 4–6 months.
In children it decreases spasticity and improve range of motion and thus has become commonly used.
Surgery usually involves one or a combination of:
– Loosening tight muscles and releasing fixed joints, most often performed on the hips, knees, hamstrings, and ankles. In rare cases, this surgery may be used for people with stiffness of their elbows, wrists, hands, and fingers. Selective Percutaneous Myofascial Lengthening (SPML) is one example.
– The insertion of a baclofen pump usually during the stages while a person is a young adult. This is usually placed in the left abdomen. It is a pump that is connected to the spinal cord, whereby it releases doses of baclofen to alleviate continuous muscle flexion. Baclofen is a muscle relaxant and is often given by mouth to patients to help counter the effects of spasticity.
– Straightening abnormal twists of the leg bones, i.e. femur (termed femoral anteversion or antetorsion) and tibia (tibial torsion). This is a secondary complication caused by the spastic muscles generating abnormal forces on the bones, and often results in intoeing (pigeon-toed gait). The surgery is called derotation osteotomy, in which the bone is broken (cut) and then set in the correct alignment.
– Cutting nerves on the limbs most affected by movements and spasms. This procedure, called a rhizotomy, reduces spasms and allows more flexibility and control of the affected limbs and joints.
– Other surgical procedures are available to try to help with other problems. Those who have serious difficulties with eating may undergo a procedure called a gastrostomy: a hole is cut through the belly skin and into the stomach to allow for a feeding tube. There is no good evidence about the effectiveness or safety of gastrostomy.
Orthotic devices such as ankle-foot orthoses (AFOs) are often prescribed to achieve the following objectives:
– correct and/or prevent deformity
– provide a base of support
– facilitate training in skills, and improve the efficiency of gait.
The available evidence suggests that orthoses can have positive effects on all temporal and spatial parameters of gait, i.e. velocity, cadence, step length, stride length, single and double support. AFOs have also been found to reduce energy expenditure.
There are now assistive technologies designed to help when dealing with cerebral palsy, most often to aid with meal times. There are manual feeding aids, for example, one designed using viscous fluid damping to smooth out essential tremors associated with cerebral palsy. There are also electronic feeding aids on the market suitable for anyone who can chew and swallow but unable to feed themselves. There are manual drinking aids available, designed with non-return valves and holders or non-slip surfaces, to enable users who lack the ability to drink from a cup or glass, due to tremors, weakness or limited head mobility, to gain a route to hydration and nutrition.
6. Prognosis
CP is not a progressive disorder (meaning the brain damage does not worsen), but the symptoms can become more severe over time. A person with the disorder may improve somewhat during childhood if he or she receives extensive care, but once bones and musculature become more established, orthopedic surgery may be required. The full intellectual potential of a child born with CP will often not be known until the child starts school.
People with CP are more likely to have learning disabilities, although these may be unrelated to IQ, including varying degrees of intellectual disability. Intellectual level among people with CP varies from genius to intellectually impaired, as it does in the general population, and experts have stated that it is important not to underestimate the capabilities of a person with CP and to give them every opportunity to learn.
The life expectancy of those with CP is less than that of the general population but has improved with the utilization of modern medicine.
The effects of sensory, motor and cognitive impairments affect self-care occupations in children with CP and productivity occupations. Productivity can include, but is not limited to, school, work, household chores and contributing to the community.
Play is included as a productive occupation as it is often the primary activity for children. If play becomes difficult due to a disability, like CP, this can cause problems for the child. These difficulties can affect a child’s self-esteem. In addition, the sensory and motor problems experienced by children with CP affect how the child interacts with their surroundings, including the environment and other people. Not only do physical limitations affect a child’s ability to play, the limitations perceived by the child’s caregivers and playmates also impact the child’s play activities. Some children with disabilities spend more time playing by themselves. When a disability prevents a child from playing, there may be social, emotional and psychological problems which can lead to increased dependence on others, less motivation and poor social skills.
Leisure occupations are any activities that are done for enjoyment. Enjoyable activities depend on one’s personality and environment. Leisure activities can have several positive effects on physical health, mental health, life satisfaction and psychological growth for people with physical disabilities like CP. Common benefits identified are stress reduction, development of coping skills, companionship, enjoyment, relaxation and a positive effect on life satisfaction. In addition, for children with CP, leisure appears to enhance adjustment to living with a disability.
Leisure can be divided into structured (formal) and unstructured (informal) activities. Studies show that children with disabilities, like CP, participate mainly in informal activities that are carried out in the family environment and are organised by adults. Typically, children with disabilities carry out leisure activities by themselves or with their parents rather than with friends. Therefore, children may experience limited diversity of activities and social engagements, as well as a more passive lifestyle than their peers. Although leisure is important for children with CP, they may have difficulties carrying out leisure activities due to social and physical barriers.
7. Barriers to Participation
Participation is involvement in life situations and everyday activities. Participation includes the domains of self-care, productivity and leisure. In fact, communication, mobility, education, home life, leisure and social relationships require participation and are indicators of the extent to which a child functions in his or her environment. Barriers can exist on three levels: micro, meso and macro.
8. Epidemiology
Cerebral palsy occurs in about 2.1 per 1000 live births. In those born at term rates are lower at 1 per 1000 live births. Rates appear to be similar in both the developing and developed world. Within a population it may occur more often in poorer people. The rate is higher in males than in females.
Overall, advances in care of pregnant mothers and their babies has not resulted in a noticeable decrease in CP. This is generally attributed to medical advances in areas related to the care of premature babies (which results in a greater survival rate).
Only the introduction of quality medical care to locations with less-than-adequate medical care has shown any decreases. The incidence of CP increases with premature or very low-weight babies regardless of the quality of care. Prevalence of cerebral palsy is best calculated around the school entry age of about 6 years.
9. History
The modern understanding of CP as resulting from problems within the brain began in the early decades of the 1800s. The English surgeon William John Little (1810–1894) was the first person to study CP extensively. In his doctoral thesis he stated that CP was a result of a problem around the time of birth. He later identified a difficult delivery, a preterm birth and perinatal asphyxia in particular as risk factors.
Working in Pennsylvania in the 1880s, Canadian-born physician William Osler (1849–1919) reviewed dozens of CP cases to further classify the disorders by the site of the problems. Osler made further observations tying problems around the time of delivery with CP, and concluded that problems causing bleeding inside the brain were likely the root cause.
10. Research
A potential treatment for some forms of cerebral palsy may be deep brain stimulation. A number of potential treatments are being examined, including stem cell therapy. However, more research is required to determine if it is effective and safe.
As of 2016 it is thought that research in genetics and genomics, teratology, and developmental neuroscience is going to yield greater understanding of cerebral palsy.