cerebral palsy

cerebral palsy
Name	Cerebral palsy
Synonyms	CP
Caption	Illustration depicting motor impairments.
Field	Neurology, Pediatrics, Physical Medicine and Rehabilitation
Symptoms	Poor coordination, stiff muscles, weak muscles, tremors
Complications	Epilepsy, Intellectual disability, Scoliosis
Onset	Early childhood
Duration	Lifelong
Types	Spastic, Ataxic, Athetoid/Dyskinetic, Mixed
Causes	Abnormal brain development or damage to the developing brain
Risks	Preterm birth, Low birth weight, Multiple births, Infections during pregnancy, Asphyxia
Diagnosis	Based on child's development over time
Differential	Muscular dystrophy, Spinal muscular atrophy, Metabolic disorder
Prevention	Prenatal care, Magnesium sulfate for preterm labor
Treatment	Physical therapy, Occupational therapy, Speech therapy, Orthopedic surgery, Botulinum toxin
Medication	Diazepam, Baclofen, Botulinum toxin
Prognosis	Varies widely; most have a normal life expectancy
Frequency	About 2.1 per 1,000 live births

cerebral palsy is a group of permanent movement disorders that appear in early childhood. It is caused by abnormal development or damage to the parts of the brain that control movement, balance, and posture. The condition is non-progressive, meaning the brain injury does not worsen over time, but the associated physical impairments can change. Signs and symptoms vary widely among individuals, ranging from mild motor difficulties to severe physical disability.

Signs and symptoms

Primary symptoms involve movement and coordination, including variations in muscle tone such as spasticity or hypotonia. Common motor signs are exaggerated reflexes, floppiness or rigidity of the limbs and trunk, abnormal posture, involuntary movements, and unsteady walking. Many individuals experience associated conditions, including Epilepsy, difficulties with vision and hearing, Intellectual disability, and communication challenges such as Dysarthria. Problems with sensation, perception, and behavior are also frequent, and Scoliosis is a common musculoskeletal complication.

Causes and risk factors

The underlying cause is damage to or malformation of the developing brain, most often occurring before, during, or shortly after birth. Major risk factors include Preterm birth, particularly before the 32nd week of gestation, and Low birth weight. Other significant risks are Multiple births, maternal Infections during pregnancy such as Cytomegalovirus or Rubella, and complications during delivery like Asphyxia. Genetic factors may contribute to susceptibility, and postnatal causes, though less common, can include traumatic Brain injury, severe Jaundice leading to Kernicterus, and brain infections like Meningitis.

Diagnosis

Diagnosis is primarily clinical and based on observing the child's motor development over time; there is no single definitive test. Physicians, often pediatric neurologists, assess motor skills, muscle tone, reflexes, and posture. Neuroimaging techniques like Magnetic resonance imaging (MRI) are frequently used to identify brain abnormalities, such as lesions in the White matter or Cerebral cortex. The process typically involves ruling out other progressive disorders, such as Muscular dystrophy or metabolic diseases, through genetic testing and other evaluations.

Classification

The condition is classified based on the type of movement disorder and the body parts affected. The primary motor types are spastic, characterized by stiff muscles; dyskinetic (or athetoid), featuring uncontrolled writhing movements; ataxic, involving problems with balance and coordination; and mixed. Topographical classification describes limb involvement: hemiplegia affects one side of the body, diplegia primarily involves both legs, and quadriplegia affects all four limbs and the trunk. The Gross Motor Function Classification System (GMFCS) is a standardized five-level scale used to rate functional abilities.

Management and treatment

Management is multidisciplinary and lifelong, focusing on maximizing function and independence. Core therapies include Physical therapy for mobility, Occupational therapy for daily activities, and Speech therapy for communication and swallowing. Medications such as Baclofen, Diazepam, and Botulinum toxin injections are used to manage spasticity. Surgical interventions, including Selective dorsal rhizotomy and various orthopedic procedures, can correct contractures and improve gait. Assistive technologies, from ankle-foot orthoses to sophisticated Augmentative and alternative communication devices, play a crucial role.

Prognosis and epidemiology

Life expectancy is generally normal for most individuals, though it can be reduced for those with severe motor limitations and associated medical complications. The disorder itself is non-progressive, but secondary musculoskeletal issues often require ongoing management. It is the most common motor disability in childhood, with a prevalence of approximately 2.1 cases per 1,000 live births in developed countries. Significant risk factors for higher prevalence include advances in Neonatal intensive care unit (NICU) care, which improve survival rates for very preterm infants, and occurrences in settings with limited access to quality Prenatal care.

Category:Neurological disorders Category:Pediatrics Category:Disability