Cerebral Palsy Flashcards
Cerebral Palsy Is a
term used for motor function disorders that result from damage to the immature brain.
Is a non-progressive condition; is the result of lesions that occur during the perinatal period, from half-way through pregnancy to seven days postpartum, and up to three years of age
“Cerebral”means
brain
“Palsy” refers to
a lack of movement control
Fetal brain development begins approximately
midway through pregnancy; the brain is susceptible to damage
The majority of children with CP are born with it although it may not be detected until months or years later. The early signs usually appear before a child reaches three years of age
Causes
Hypoxia and ischemia – in utero from a kink in the umbilical cord or the cord wrapping around the fetus’s neck, maldevelopment of the placenta or shock in the mother from an accident.
Postpartum hypoxia or ischemia can result from suppression of the respiratory centres b/c of overmedication of the mother; or pneumonia, a collapsed lung or drowning of the infant
Trauma to, or rupture of, cerebral blood vessels – due to separation of the placenta; difficult or prolonged delivery; postpartum head injury from an accident or abuse
The brain of a premature baby is particular susceptible to hemorrhage. Strokes can occur as a result of dehydration.
Toxicity and infection – can lead to brain damage. RH factor incompatibility or infection in the mother such as measles, shingles or a virus can damage brain cells; postpartum meningitis, viral encaphalitis and lead and carbon monoxide poisining
It is estimated that
one in every 500 babies and up to one in three premature babies are affected to some extent with CP.
The type and severity of symptoms will depend on the location and extent of the brain lesion, from few or no obvious signs to a severe lack of motor control.
Four Main Types
Spastic, Athetoid, Ataxic, Mixed – usually spastic and athetoid
Spastic
increased tone; accounts for 75% of all cases
Monoplegia – one arm or leg
Diplegic – both legs usually; most common of spastic form; fully ambulatory scissors gait
Hemiplegic – one side of body; usually most ambulatory
Quadriplegic – all four limbs; least likely to be able to walk
Athetoid
– uncontrolled movement; slow and writhing, increases with intention and stops with sleep; have trouble holding themselves upright
Ataxic –
poor coordination; least common; damage to cerebellum
The signs of CP
are usually not noticeable in early infancy but become more obvious as the child’s nervous system matures.
Early signs are delayed milestones, persistence of primitive reflexes and developing handedness before 18 months (indicates weakness or abnormal muscle tone on one side).
Spasticity – most common
Athetoid movements – slow and writhing
Choreiform – movements are quick, uncontrolled and without purpose; do not stop with sleep
Ataxia – lack of coordination and clumsiness of movements; ataxia in the face causes grimacing
Flaccidity – may be present in the first year or two then change to spasticity or athetoid movement
Reflex movements – development reflexes not integrated
Pain – resulting from muscular, neurological and bony changes; can be acute or chronic
Postural dysfunctions – scoliosis (can lead to respiratory difficulties), hyperlordosis, hyperkyphosis
Contracture formation – equinus deformity (short Achilles); internal rotation of hip, hip flexion
Permanent skeletal changes and arthritis
Stenosis of cervical spine
Osteoporosis
Epilepsy, mental development delay and emotional disturbances
Compromised tissue health – disuse atrophy >60 yrs; edema → decubitus ulcers
Peripheral nerve compression – due to postural imbalances
Variety of sensory losses; decreased proprioception
Perception of pain, temperature and pressure is not affected
Speech – dysarthria; can be difficulty swallowing and inability to control saliva
Hearing impairment
Bowel and bladder function compromised
Vision can be normal or limited
Frustration and anger
Intellect may or may not be affected
Athetoid movements –
slow and writhing
Choreiform –
movements are quick, uncontrolled and without purpose; do not stop with sleep
Ataxia –
lack of coordination and clumsiness of movements; ataxia in the face causes grimacing
Diagnosis
Development delays such as reaching for toys (3-4 months), sitting (6-7 months) and walking (10-14 months)
Physical findings – such as abnormal muscle tone, abnormal movements, abnormal reflexes and persistent infantile reflexes
Most times, children can be diagnosed by the age of 18 months