Neurology Flashcards
what is the best dx tool for neuro?
History
where is LP done?
22 gauge needle at L3-L4 intervertebral space
what is LP used for measuring?
Opening pressure, cell count (red and white), glucose, protein, culture, gram stain, PCR for viruses
what does CT find?
bleeding and masses
what does MRI show?
Myelination and demyelenation
Can see posterior fossa best
what can US show?
Eval for hydro, hemorrhage, gross structures, calcification
Routine neuroimaging is or is not indicated for children presenting with recurrent headaches unless
is there is an abnl neuro exam, coexistence of seizures or other red flags.
when do you do CT or MRI for HA?
rarely necessary/appropriate
Concern about sub-arachnoid, subdural hematoma
Concern about increased IC pressure or hemorrhage
when should you do labs for HA
if suspect infectious origin
CBC, blood cultures, lumbar puncture etc for meningitis
what are 5 red flags of HA
- Headache fails to respond to therapy
- focal neurologic findings appear (in first 2-6 months)
- progressively increasing frequency / severity of headache, headache worse with valsalva
- headache awakens from sleep, worse in the morning, AM vomiting
- at-risk hx or condition: neurocutaneous disorder
(brain tumor, hemorrhage, hydrocephalus, pseudotumor, meningitis,) may cause
increased ICP
(intracerebral hemorrhage, vasculitis, or AVM) may cause
vascular HA
(postictal or ictal) may cause what 2ndary HA?
epilepsy
(sinusitis, dental abscess, trigeminal neuralgia, TMJ pain, carotid dissection) may cause what 2ndary HA
h and neck patho
(HTN, DM, cardiac disease-source of emboli/stroke) may cause
2ndary HA
what drugs may cause 2ndary HA
(analgesic overuse/rebound, drug abuse-cocaine, psychostimulants, OCPs, steroids)
what psych do may cause 2ndary HA?
depression
HA that is Severe, pulsatile (pounding)
unilateral, can be bilateral
Frontal or temporal regions, retro orbital or cheek
Migraine
May be only symptom in younger children (cyclic vomiting)
Vomiting may herald the end of the headache
Migraine
Assoc symptoms
N/V photophobia, phonophobia, vertigo, fatigue, mood alteration
Vomiting
Migraine
children have what kind of aura for HA
visual
when are studies warranted for migraines?
focal neurologic signs
HA worse on awakening , or awakens pt , or with a cough or bending over.
how do you treat migraines
Ibuprofen or acetaminophen early in the attack
Caffiene, caffiene+ergot
Triptans (sumatriptan, rizatriptan, etc.) and DHE (dihydroergotamine)
Rest and quiet
Avoid narcotics
how do prevent migraines?
Tricyclic antidepressants
Beta Blockers ie propranolol
Calcium channel blockers, such as verapamil
how do you dx a migraine?
Hx
what are TTH brought on by?
Brought on by fatigue, exertion, stress
which of the following is not for migraines?
narcotic - morphine
what is Pain described as
Constant, aching, tight
Occipital, frontal or constricting band around head
May occur simultaneously with vascular headache
TTH
how do you treat TTH?
Relieved by rest, analgesics
who gets cluster HA
Predominantly male
Unusual in children under 10
what is HA that is Unilateral, severe pain
Periorbital or retro-orbital
May have ipsilateral autonomic dysfunction (flushing, tearing, sweating, nasal congestion)
Patient can’t sit still due to the pain
Cluster HA
how long does cluster HA last
Lasts minutes to hours – typical 30 min to 2 hrs
t or f cluster ha Occur in clusters, often seasonal
T
how do you treat cluster HA?
O2 - 100%
A sudden, transient disturbance of brain function manifested by involuntary motor, sensory, autonomic, or psychic phenomena.
seizure
2 or more seizures not provoked by particular event or cause.
epilepsy
sz can be d/t
Metabolic, truamatic, anoxic, infectious insult to brain
a benign condition of childhood with unilateral focal seizures and speech abnormalities, often hereditary.
rolandic epilepsy
sz that is in first 28 days (typically first few days)
Benign familial ( outgrow )
Secondary may progress ( HIE,Infex, IVH, thrombus)
neonatal sz
sz in 6 mo – 6 yrs, w no evidence of intracranial infection or defined cause
febrile
what is status epilepticus
Seizure > 30 min
Sequential seizures without regain LOC > 30min
do children out grow sz?
70-80% do
what are partial sz types
simple partia (focal) Complex partial (psycho-motor) Benign rolandic epilepsy
what are generalized sz types
Absence (petit mal) Generalized tonic clonic (grand mal) Tonic Clonic Atonic
what sz are unique to kids?
Infantile spasms (West syndrome)
Febrile seizures
Juvenile myoclonic
what is simple partial sz
No LOC
what is complex partial sz?
LOC (staring) – altered consciousness
what is 2ndarily gen sz?
: a simple or complex partial seizure that ends in a generalized convulsion
what is a partial sz?
Onset of seizure begins in one area of one cerebral hemisphere (apparent clinically or via the EEG)
can eeg tell us if someone has epilepsy?
No -
what is a generalized sz?
Seizures arise from both hemispheres, simultaneously
what szs are Frequently associated with underlying structural brain disease and
Difficult to treat and classify
Myoclonic,Tonic, Atonic and Atypical absence
symptoms of Stare Eyes fluttering Automatisms (such as lip smacking, picking at clothes, fumbling) if prolonged
Absence (petit mal)
what has symptoms of A cry Fall Tonicity (rigidity) Clonicity (jerking) May have cyanosis
Generalized tonic-clonic (Grand mal)
what has post-ictal of Amnesia for seizure eventsNo confusionPromptly resumes activity
absence
what has post-ictal of Amnesia for seizure eventsConfusionDeep sleep
tonic-clonic
what is are infantile spasms? (west syndrome?
Clinical Spasms ( 1-2 seconds)
Mistaken for colic, reflux, startle
Occur in clusters when drowsy
what could cause infantile spasm? and out comes of both?
-Brain insult at birth, malformation ,Tuberous Sclerosis, metabolic origin
Hard to control
Poor neurocognitive outcome
Cryptogenic = no identifyable cause.
Best outcome
Seizure description:
-When awake:
twitching and/or tingling on one side of body
speech arrest, speech difficulty, may drool / gag
no loss of consciousness, usually
Benign Rolandic EpilepsyBenign Focal Epilepsy of Childhood
what is the IQ of someone with rolandic epi?
normal
what is the Fhx of someone with rolandic epi
positive for
who gets rolandic epilepsy?
Boys>girls
when do you treat rolandic epi?
frequent (which is unusual)
Socially stigmatizing if occur in wakefulness
Anxiety provoking for parents if occur in sleep
what is status epilepticus?
30 minutes or more of continuous seizures or recurrent seizures without regaining consciousness
Medical emergency
Prolonged seizure may cause structural damage, hypoxia, hypotension, death
who is status epi common Most common in?
children under 5 (85%) , especially < 12 mo