Palsie Flashcards
What are Cerebral palsies
Most common motor disability in children
group of disorders affecting
muscle tone
Posture
development of movement
D/2 non-progressive damage to the brain in utero or up to the age of 3 year
Depending on the affected brain area, spastic, ataxic, or dyskinetic cerebral palsy develops
What causes cerebral palsy
Idiopathic (most cases)
Risk factors:
Preterm birth and low birth weight (most important risk factors)
TORCH infection
Perinatal asphyxia Intracranial hemorrhage Structural abnormality of the brain Neonatal seizures Kernicterus Postnatal infection (e.g., meningitis, encephalitis)
What are the most common risk factors for cerebral palsy
Preterm birth and low birth weight
What are congenital TORCH infections
Acronym of congenital pathogens transmitted from mother to child during pregnancy (transplacentally) or delivery (peripartum)
T for toxoplasmosis
O for others (including syphilis, varicella-zoster virus, parvovirus B19, possibly listeriosis)
R for rubella
C for cytomegalovirus (CMV)
H for herpes simplex virus (HSV)/HIV/HEPATITIS
Classification of cerebral palsies(2)
Spastic cerebral palsy: (75% of cases)
spastic paresis of one or more limbs
Non-spastic cerebral palsy :(2 types)
- Dyskinetic: abnormal involuntary movements (choreoathetoid, dystonic)
- Ataxic: intention tremor, lack of balance and coordination
General sx of cerebral palsy
Patients do not reach certain milestones
- can’t roll over from back to tummy(lmao like insects )
- can’t sit independent,y
- can’t crawl
Intellectual disability (50%) - most common in spastic type
Seizure disorder (35%–50%)
Joint contracture
ADHD
Sx in spastic type of cerebral palsy
Hypertonia of one or more limbs however infants initially have HYPOTONIA then develop spasticity after 6-12 months as brain matured
↑ Deep tendon reflexes
Persistence of primitive reflexes (positive Babinski sign)
Toe walking
Pes Equinus deformity( flexion deformity of the foot)
Muscle weakness and/or atrophy
Scissor gait (d/2 spastic paraplegia of the hip adductors)
Hip dislocation
Scoliosis
Hearing or vision impairment
DTR TEST
reflex to test the integrity of a sensory and motor neuron circuit.
tapping of the reflex hammer causes activation of the dorsal root ganglion
causes firing of the lower motor neuron for the agonist muscle and relaxation of the antagonist muscle,
resulting in automatic movement.
increased DTR indicates an upper motor neuron issue
decreased DTR indicates a LMN, neuromuscular junction, or muscle issue.
Sx of non spastic type of cerebral palsy
Abnormal involuntary movements that worsen with stress and disappear with sleep
Specific sx are
Chorea: continuous, involuntary, rapid, abrupt, irregular, and not driven by urge- or compulsion
-involve the shoulders, hips, and face.
Athetosis: involuntary writhing movements of the fingers, hand, toes, and/or extremities caused by damage to the thalamus, striatum of the basal ganglia
choreoathetosis: athetosis and choreiform combo
Dystonia: muscle contrxn causing FIXED POSTURE and a normal movements
-forceful cntrxn of jaw
Ataxia: lack of coordination of voluntary movements. 2 mech / causes
- impaired cerebellar function (cerebellar ataxia)
- impaired vestibular function (vestibular)
- Loss of proprioceptive sensation (sensory ataxia).
Dysarthria: difficulty w/ articulation
dysphagia: difficulty eating
- caused by pseudobulbar involvement
How is the dg of cerebral palsy done
mainly based on the clinical picture.
Imaging
Cranial ultrasonography in early neonatal period to screen for risk factors
- intracerebral hemorrhage
- hypoxic-ischemic injury
- structural abnormalities
MRI (in older infants): to detect causative lesion
-periventricular leukomalacia(injury of cerebral white matter (necrosis ) d/2 ischemia /infection)
- congenital malformation
- intracranial hemorrhage
How is CP rx
No definitive rx
All therapy is aimed to manage sx and Improve QOL
Antispasmodics
- botulinum toxin,
- baclofen: GABA agonist muscle relaxant
- dantrolene: inhibit r in sarcoplasmic reticulum’ less calcium released’ less spasm
- benzodiazepines
Physical therapy
Surgery
- treat scoliosis
- relieve joint contractures)
Bracing to prevent contractures
Speech therapy for dysarthria
Nutritional support for dysphagia
Special tuition for intellectual disability
Social and psychological support