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Neurological Stressors and Adaptation. Common Neurological Disorders in Children. Neural Tubes Defects Hydrocephalus Bacterial Meningitis Guillain-Barre Syndrome Reye’s Syndrome Seizures. Neural Tube Disorders. Defects of closure of neural tube during fetal development - PowerPoint PPT Presentation
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NeurologicalStressors and
Adaptation
Common Neurological Disorders in Children
Neural Tubes DefectsHydrocephalusBacterial MeningitisGuillain-Barre SyndromeReye’s SyndromeSeizures
Neural Tube Disorders
Defects of closure of neural tube during fetal developmentCongenital (present at birth)Believed to be caused by genetic or environmental factors, but exact etiology is unknown
Common in women with poor folic acid intake before and during pregnancy
Nursing ImplicationsAdvise all women to adhere to routine screening/diagnostic testingAdvise all women capable of becoming pregnant to consume
0.4 mg of folic acid daily
Neural Tube Disorders
Types:Spina Bifida
OccultaCystica
MeningoceleMyelomeningocele
Spina BifidaMost common CNS defectCaused by failure of neural tube to close at some point along spinal columnTypes:
spina bifida occulta spina bifida cystica
Spina Bifida Occulta
Not visible externally
Lamina fail to close but spinal cord does NOT herniate or protrude through the defect
No motor or sensory defects
Spina Bifida Cystica Meningocele
External sac that contains meninges and CSF
Protrudes through defect in vertebral column
Meningocele Not associated
with neurologic deficit – good prognosis
Hydrocephalus may be an associated finding, or aggravated after repair
Spina Bifida Cystica
MyelomeningoceleSame as above, but the spinal cord and meninges protrude through the defect in the bony rings of the spinal cord
Contains nerves therefore the infant will have motor and sensory deficits below the lesion
Myelomeningocele Visible at birth, most often in the lumbaosacral area
Covered with a very fragile thin membrane/sac which can tear easily, allowing CSF to leak out
Nursing Interventions• Protect the sac from injury• Keep free from infection
• Position: prone or side lying • Cover sac with sterile, moist non-
adherent dressing, sterile technique imperative
• Parents need emotional support & education regarding short and long term needs of infant
• Surgical shunting may be necessary
Nursing Interventions• Surgical repair usually within first 24 hours
• 90% develop hydrocephalus• MUST observe for early signs of infection: elevated temp, irritability, lethargy, nuchal rigidity
• MUST observe for signs of increasing ICP (may indicate hydrocephalus)
HabilitationEmphasizes constructive use of ‘normal’ parts of body & minimizes the disabilities making the child as self-helpful as is possible in the activities of daily livingMajor problems: incontinence, constipation, obesity or malnutrition
Hydrocephalus
Ventricles of the brain are enlarged as a result of an imbalance between the production and absorption of CSFOften occurs in conjunction with myelomeningocele which blocks the flow of CSFCan lead to irreversible neurological damage
INFANT Hydrocephalus Early signs & symptomsProjectile vomiting not associated with feedingScalp veins become prominent**Shrill, high pitched cry**Increasing irritability
Infant Hydrocephalus Later signs & symptoms •Bulging anterior fontanel and a head circumference that increases at an abnormal rate
•Enlargement of the forehead
•Depressed eyes rotated downward: “sunset eyes” (pupils sink downward)
Hydrocephalus Signs & symptoms in
older ChildNo enlargement of head (skull is closed)Begins with generalized neuro symptomsFollowed by signs of increased ICP
Relief of hydrocephalus
VP shunt placement to bypass the obstruction Needs replaced PRN
Pre-op for Shunt Placement
Observe for increasing ICPDaily head circumferencesMaintaining adequate nutrition with flexible feeding schedule offering small feedings at shorter intervalsSedate child prn for procedures (MRI, CT)Support head when feeding or moving
Post-op Nursing Care Shunt Placement
Keep child flat unless ICP is present the bed slightly elevatedPain managementObserve for signs of increasing ICP – neurologic assessmentObserve for abdominal distentionStrict I & O AntibioticsMeticulous skin careSupport family
Discharge Management Post Shunt Placement
Treatment of shunt complications: meningitis, septicemia, bacterial endocarditis, wound infection, shunt nephritis, ventriculitisManagement of problems r/t psychomotor developmentLifelong problem, parents need to know signs of shunt malformation
Meningitis
•Acute inflammation of the cerebral meninges as a result of a bacterial or viral infection
Bacterial Meningitis Follows 2-3 days of upper respiratory infection (seasonal)
May be caused by Strep pneumoniae & Neisseria meningitis in child < 24months
Meningococcal predominantly in school-age children & adolescents (vaccine preventable)
Bacterial MeningitisSigns & SymptomsAbrupt onset of feverChillsIncreasing irritabilityHeadacheConvulsionsBlurred visionCranial nerve paralysis
Opisthotonic position
Classic Signs and Symptoms
1. Nuchal rigidity
2. (+) Kernig’s sign
3. (+)Brudzinski’s sign
Signs & Symptomsin Newborn
Above slide’s signs plus:• poor suck• weak cry• lethargy• can lead to sudden shock, seizures, apnea
• bulging fontanel
Bacterial MeningitisDiagnosis:
lumbar puncture to analyze CSF increased WBC’s and protein; decreased glucose (bacteria feed on
glucose)Treatment:
ABX x 10 days, IV or Intrathecal Respiratory isolation x 24 hours while on ABX Maintenance of optimum hydration Maintenance of ventilation Reduction of increased ICP Management of bacterial shock Control of seizures Prophylactic ABX for family members Monitor for increasing ICP (Dexamethosone, Mannitol)
SequelaeHearing lossBlindnessParesisIntellectual impairment
EncephalitisAcute inflammation of the brainSymptoms do not include nuchal rigidity or positive kernig or brudzinskiSymptoms depend on the causative organism
Guillain-Barre Syndrome
• Immune-mediated disease of motor weakness that is often associated with viral or bacterial infection of respiratory or GI tract or vaccine administration
• Adults have increased susceptibility, can affect children usually ages 4-10
• Inflammation of nerve fibers, impairs nerve conduction
• Ascending paralysis from lower extremities
Initial SymptomsPeripheral neuritis occurs several days after primary infectionMuscle tendernessTendon reflexes decreased or absentParesthesia & crampsProximal symmetric muscle weaknessUrinary incontinence or retentionDecreased swallowing & respiratory efforts-may lead to respiratory failure
Nursing careAssess degree of paralysisPrevent complications (immobility)Watch for difficulty swallowing, respiratory involvementWait for disease to stabilize: no abx, may get IVIG otherwise tx is supportive
(PT important for recovery)
Reye’s Syndrome A life threatening acute encephalitis w/ fatty infiltration of liver, heart, lungs, pancreas & skeletal muscleOccurs after viral infection if tx’d w/ aspirinEducation efforts has helped to reduce incidence (use tylenol not ASA)
Reye’s Syndrome
Dx:Based on symptoms & labsStaged 1-5
Reye’s SyndromeBegins with mild viral infection that
worsens w/I 24-48 hours
LethargyVomitingFollowed by
AgitationAnorexiaCombativenessConfusion leading to stupor, coma, seizures, respiratory arrest
Reye’s SyndromeLabs
Increased:Liver enzymesSerum ammoniaPT, PTTBunAmylaseWBC’s
Decreased:Serum glucose
Reye’s SyndromeNursing CareMonitor:
Neurological statusRespiratory effortHypoglycemiaBrain edema
SeizuresInvoluntary contraction of muscle caused by abnormal electrical brain impulsesThey are episodic and abruptOften triggered by environmental of physiological stimuli Exact location of the electrical foci and the number of brain cells involved determines the nature of the seizure (sterotypical)
Types of SeizuresNonrecurrent – Acute
Febrile episodesDrugsMetabolic alterations
Recurrent – Chronic (Epilepsy)
Idiopathic (primary) epilepsyEpilepsy secondary to trauma, hemorrhage, infections, congenital defects
Type and Cause of Seizures is predicted by
age:Newborn Infant and ToddlerChildren age 3 and older
Seizures: 2 categories
PartialSimpleComplex
Only 1 area of brain involvedSymptoms are associated with the area affectedNo LOC or consciousness is impaired
GeneralizedNewbornInfantile spasmsAbsenceTonic Clonic
Entire brainUsually have loss of consciousnessMay have aura
Simple Partial SeizuresAge: anyNo loss of consciousness, no auraHas either:
Abnormal motor activity• One extremity, uncontrolled movement, may progress
into generalized seizureAbnormal sensory activity
Numbness, tingling, paresthesia or pain starting in 1 area of body, may spread to other parts of bodyMay include abnormal auditory, olfactory and visual sensations
TX: Variety of anticonvulsants
Complex Partial SeizuresAge: Children age 3 and olderConsciousness is impairedIdiopathicCT, MRI, EEG are normal
May have slight auraSudden change in postureAutomatismsSlump to ground, unconsciousCircumoral pallor
Afterward: drowsiness, no postictal state
Tx: Tegretol, Dilantin
Generalized Seizures
Newborn PeriodAge: Newborn to age 3 monthsSudden twitching of head, arms, eyes, slight cyanosis, respirations may be affectedAfter seizure may be limp
Causes:Trauma at birthMetabolic disorderInfectionKernicterus
TX: Phenobarbital
Generalized Seizures
“Infantile Spasms”Age: 3 months to 2 years• Altered consciousness
Rapid movement of trunk followed by relaxationChild falls forward or to groundOccur singly or in clustersMay have permanent cognitive & developmental delays
TX: variety of anticonvulsants
Generalized SeizuresAcute Febrile seizure• Age: Any
Due to increased temperature > 102 F (but may occur as low as 100 F)Tonic-clonic pattern15-20 seconds
Tx:Protect from harmR/O infection (meningitis)
Generalized SeizuresAbsence Seizure
• Age: 3 years• Brief loss of consciousness• Staring spell
Rhythmic blinking & twitching of mouth or arm mistaken for daydreaming or behavior problemsLasts 5-10 seconds, multiple times a day
TX:DepakeneEncourage normal school activities1/3 of children will grow out of them by adolescence
Generalized SeizuresTonic Clonic
Age: any4 stages1. Prodromal:
Drowsiness, dizziness, malaise, lack of coordination, “not himself”
2. Aura:May precede seizure, reflects portion of brain where seizure originates
Tonic-clonic stage3. Tonic-Clonic:
Tonic: 20 seconds, all muscles cx (rigid), child falls to ground, LOC, respiratory muscles affected, grunting, airway compromisedClonic: 20-30 seconds, jerky muscle contract & relax rapidly, froth or bloody sputum
4. Postictal:Appears to relax, semi-conscious, sound sleep for 1-4h, no recollection of event
Tx: Dilantin, Depakene, Tegretol
Chronic Seizures in children 3 and older
Epilepsy• Chronic seizure disorder with
recurrent seizures • Symptoms depend on type of
seizure• No association with illness,
injury• seizure may be triggered by
something
Epilepsy Management
Anti-seizure meds Dosage increased as child
grows Control the seizures or reduce
their frequency Discover and correct the cause
when possible, know triggers Help child live a normal life
Epilepsy Management Instruct parents on importance of
giving meds to achieve therapeutic drug levels
Med can be withdrawn when child is seizure free for 2 yrs with normal EEG
TAPER! Gradually decreased over 1-2 weeks
TriggersChanges in dark-light patternsSudden loud noises, specific voicesSudden or startling movementsExtreme changes in temperatureDehydration, fatigueHyperventilationHypoglycemiaCaffeine, insufficient protein in diet
Status EpilepticusContinuous seizure activity lasting > 30 minutes or a series of seizures from which the child does not regain a premorbid level of consciousness
Nursing Responsibilities: A, B, C’s IV access Observe and record Protect Medications -IV benzodiazepine (Ativan,
Valium), then seizure meds
Dilantin (phenytoin)Toxicity: nystagmus, ataxia, decresed mental capacity
Low levels: seizure activity
S/E: gingival hyperplagia (discuss oral hygiene), drowsiness, thrombpcytopenia, leukopenia, increased liver enzymes
Nursing responsibility:Monitor CBC, LFT, therapeutic drug levels
A 10-year old client presents with weakness in legs and history of the flu. The medical diagnosis is Guillain-Barre Syndrome. It would be imperative for the nurse to inform the physician after observing which of the following?
1. Weak muscle tone in the feet2. Weak muscle tone in the legs3. Increasing hoarseness4. Tingling in the hands
A 4-year-old is being evaluated for hydrocephalus. The nurse notes which of the following as an early sign of hydrocephalus in a child?
1. Bulging fontanels2. Rapid enlargement of the head3. Shrill, high-pitched cry4. Early morning headache
A child with a history of a seizure was admitted 2 hours ago. The history indicates fever, child, and vomiting for the past 3-4 hours. In report the nurse is told that the child had a positive Brudzinski’s sign. The nurse infers this is most likely caused by:
1. Increased intracranial pressure2. Meningeal irritation3. Encephalitis4. Intraventricular hemorrhage
A nurse is assessing a new admission. The 6-month-old infant displays irritability, bulging fontanels, and setting-sun eyes. The nurse would suspect:
1. Increased intracranial pressure2. Hypertension3. Skull fracture4. Myelomeningocele
An 8-year-old client with a ventriculoperitoneal shunt was admitted for shunt malfunction. He presents with symptoms of increased intracranial pressure. The mechanism of the development of his symptoms is most probably related to:
1. Increased flow of CSF2. Increased reabsorption of CSF3. Obstructed flow of CSF4. Decreased production of CSF