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Cerebral Palsy: Causes, Symptoms & Treatment

Cerebral palsy is a permanent movement disorder caused by brain damage occurring before, during, or shortly after birth. It affects muscle tone, posture, and motor development.

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Things worth knowing about "Cerebral palsy"

Cerebral palsy is a permanent movement disorder caused by brain damage occurring before, during, or shortly after birth. It affects muscle tone, posture, and motor development.

What is Cerebral Palsy?

Cerebral palsy (CP) is an umbrella term for a group of permanent, non-progressive movement and posture disorders caused by damage to the developing brain. This damage typically occurs before, during, or shortly after birth – during a critical period when the brain is still forming. Cerebral palsy is the most common physical disability in childhood, affecting approximately 2–3 per 1,000 live births worldwide.

Causes

The brain injury leading to cerebral palsy can result from a variety of causes:

Prenatal causes: Infections during pregnancy (e.g., rubella, cytomegalovirus), oxygen deprivation in the womb, genetic factors, or brain malformations
Perinatal causes: Oxygen deprivation during delivery (birth asphyxia), premature birth, low birth weight (under 1,500 g), or complicated deliveries
Postnatal causes: Meningitis, traumatic brain injury, stroke, or severe infections in early infancy

Symptoms

The symptoms of cerebral palsy vary widely depending on the location and severity of the brain injury. Common signs include:

Altered muscle tone (increased = spasticity, decreased = hypotonia)
Restricted or involuntary movements
Impaired coordination and balance
Delayed motor milestones (e.g., delayed sitting, standing, or walking)
Abnormal gait patterns (e.g., scissor gait in spastic diplegia)
Difficulties with swallowing and speech

Associated conditions may also be present, including epilepsy, cognitive impairments, vision or hearing difficulties, and behavioral challenges.

Types of Cerebral Palsy

Cerebral palsy is classified according to the predominant type of movement disorder:

Spastic cerebral palsy: The most common type; characterized by increased muscle tone leading to stiffness and restricted movement
Dyskinetic cerebral palsy: Involves involuntary, uncontrolled movements such as athetosis, dystonia, or chorea
Ataxic cerebral palsy: Characterized by problems with balance and coordination
Mixed cerebral palsy: A combination of more than one movement disorder type

Diagnosis

Cerebral palsy is typically diagnosed during infancy or early childhood. The diagnostic process may include:

Clinical examination: Assessment of motor development, muscle tone, and reflexes by a pediatrician or pediatric neurologist
Magnetic Resonance Imaging (MRI): Brain imaging to identify structural abnormalities
Cranial ultrasound: Particularly useful in premature newborns
Electroencephalography (EEG): To detect or rule out epilepsy
Genetic testing: In selected cases to exclude genetic causes

Treatment

There is no cure for cerebral palsy, as the underlying brain injury is permanent. However, treatment aims to maximize quality of life, promote independence, and prevent secondary complications. Care is always individualized and multidisciplinary:

Physiotherapy: Improving motor function, strength, balance, and preventing contractures
Occupational therapy: Training daily living skills and fine motor abilities
Speech and language therapy: Supporting communication and swallowing function
Medications: Muscle relaxants such as baclofen or botulinum toxin injections to manage spasticity
Assistive devices: Orthoses, wheelchairs, or other mobility aids
Surgical interventions: Selective dorsal rhizotomy or orthopedic corrections for severe spasticity
Early intervention and special education: Supporting cognitive and social development from an early age

References

Rosenbaum P et al. – A report: the definition and classification of cerebral palsy. Developmental Medicine & Child Neurology, 2007.
World Health Organization (WHO) – International Classification of Functioning, Disability and Health (ICF), Geneva, 2001.
Bax M et al. – Proposed definition and classification of cerebral palsy. Developmental Medicine & Child Neurology, 47(8): 571–576, 2005.

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