Neuro Flashcards
Risk factors for stroke?
HTN, DM, Hyperlipidemia, Tobacco, A-fib, Valvular heart dz, DVT + PFO
Stroke vs TIA
Stroke >24hr
TIA<24hrs
sx of ACA stroke
contra muscular weakness, personality changes, urinary incontinence
sx of MCA stroke
contra weakness, eyes deviate tword lesion, contra homonymous hemianopsia with macular sparing, Apraxia/neglect(R infarct), Aphasia(L infarct = language)
PCA stroke sx
ipsilateral face, contra body, vertigo & horners
best initial test for stroke?
CT W/O contrast to check for hemorrhage
CT shows hemorrhagic stroke
tx?
no tx! just monitor. reverse anticoagulation(hep = protamine sulfate, war = K & FFP), Target BP: 140-160 = Nicardipine, Labetalol, Statin with target <70.
when do you use thrombolytics for stroke?
<3 hrs of sx
when do you do catheter to retrieve clot?
between 4.5-6/8hrs
partial seizure
simple vs complex?
*limited to 1 part of the body
simple = no LOC
comples = LOC
causes of generalized seizures
hi/low Na, hypoxia, hypoglycemia, CNS infection, trauma, tumor, stroke, decreased Ca, uremia, withdrawal, cocaine toxicity, decreased Mg
tx of status epilepticus?
- Benzo = Lorazepam
- Fosphenytoin > Phenyltonin(hypotension/heart blk)
- phenobarbital
- anesthesia!
tests to run during seizure
- Na, Ca, Glucose, O2, Cr, Mg
- CT
- MRI
- EEG
when can a patient be taken off seizure medications?
2yrs and no seizure but need to do a Sleep deprivation EEG afterward to tell you possibility of recurrance
Lewy body dementia
parkinsons + dementia
Shy-Drager Syndrome
parkinson w/primary orthostasis
Parkinsons Disease
sx?
- loss of substantia nigra causing:
- cogwheel rigidity
- resting tremor
- hypomimia(masklike, underreactive face)
- micrographia(small writing)
- orthostasis(dizzy when standing up)
- Intact cognition and memory
Tx of mild parkinsons sx
<60 = anticholinergic(benztropine, hydroxyzine): relieves tremors but can worsen dementia >60 = amatadine
tx of severe parkinsons
- D-ag: Pramipexole, Ropinirole, Cabergoline
- Levodopa/Carbidopa = great drugs but increased on-off phenomena - COMT inhibitors(Tolcapone, Entacapone) = blocks metabolism of dopamine
- MAO inhibitors(selegiline, rasagiline)
- deep brain stimulation
Multiple Sclerosis(MS) sx?
- CNS demylination:
- optic neuritis
- motor and sensory probelms and defects of the bladder
- fatigue
- hyperreflexia
- spasticity
- depression
- INO
- sexual dysfunctions
dx of MS?
- MRI showing periventricular white lesions
2. CSF showing “oligoclonal bands”(not unique)
tx of MS?
steroids
fatigue = amantadine
spasticity = baclofen or tizanidine
tx of essential tremor vs parkinsons tremor
essential = propanolol parkinsons = antichol(benztropine/hydroxyzine) if <60 or Amantadine if >60
Alzheimer’s Disease(AD)
sx?
*progressive loss of memory in pt >65
Alzheimer’s Disease(AD)
dx?
order: head CT, B12, T4/TSH, RPR/VDRL
* CT will show diffuse, symmetrical atrophy
Alzheimer’s Disease(AD)
tx?
anticholinesterase medications = donepezil, rivastigmine, galantamine, memantine
Frontotemporal Dementia(Pick's Disease) sx? dx? tx?
personality and behavior problems present 1st then they get memory loss
CT/MRI shows frontal and temporal atrophy
treat just like alzheimers = anticholinesterase(donepezil, rivastigmine, galantamine, memantine)
Normal Pressure Hydrocephalus(NPH)
sx? dx? tx?
Wet, Weird, Wobbly!
Wet: urinary incontinence
Weird: dementia
Wobbly: wide based gait ataxia
dx: LP & CT
tx: shunt
Huntington’s Disease/Chorea
sx?
~30s, family history, dementia, psychiatric disturbance with personality changes, Chorea/movement disorder
Huntington’s Disease/Chorea
mutation?
AD CAG repeat on Chrom 4
Huntington’s Disease/Chorea
tx?
Tetrabenazine for movement & Antipsychotics for other sx
Tension Headache
sx? tx?
constant pressure, lasts 4-6hrs, usually bilateral
tx: NSAIDs n shit
Migraine
sx? tx?
aura of bright flashing lights, Scotomata, abnormal smells
tx: abortive: sumatriptan, Ergotamine
ppx: CCB, TCA, SSRI
*if 4+ HA per month = propanolol ppx
person gets 4+ HA a month. tx?
propanolol
Cluster HA
sx? tx?
HA are exclusively unilateral +/- unilateral with redness and tearing of the eye & rhinorrhea. frequent and high intensity.
tx: abortive = triptans or 100% O2
ppx: CCA like verapamil
Trigeminal Neuralgia
sx? triggers? tx?
CN5 pain
triggers: chewing, touching face, saying Twords
tx: carbamazipine, lamotriginine, baclofen or surgical decompression
Post-herpetic Neuralgia
sx? tx?
residual pain following resolution of herpes(shingles), vesicular lesions, painful dermatomal rash
tx: acyclovir to decrease incidence and Amytrip/gabapent/carbamazapine/phenytonin for pain
when do you vac for shingles?
> 60 yoa
Temporal Arteritis
sx? tx?
sx: tenderness of the temporal area(pain w/brushing hair), jaw claudication, visual disturbance
tx: steroids
Pseudotumor Cerebri
sx? dx? tx?
obese young women with a HA & dbl vision on exam = papilledema; associated with Vitamin A use.
dx: increased CSF pressure
tx: weight loss, ACETAZOLAMIDE, surgery, stop vitA, steroids, decompression
Benign Positional Vertigo(BPV)
sx? tx?
vertigo(NV, horizontal nystagmus= peripheral), positive dix-hallpike maneuver(vertigo with changes in position) no hearing loss
tx: meclizine
Vestibular neuritis
sx? tx?
sx: inflammation of 8CN = vertigo and dizziness not related to positional shit.
tx: meclizine
Labyrinthitis
sx? tx?
inflammation of cochlear portion of inner ear = vertigo, hearing loss, tinnitus & self limiting
tx: steroids & meclizine
Meniere’s Disease
sx? tx?
sx: vertigo, hearing loss & tinnitus with remitting and relapsing episodes(MULTIPLE EPISODES).
tx: salt restriction and diuretics
Acoustic Neuroma
sx? tx?
sx: 8th CN tumor that can be related to neurofibromatosis, hearing loss, tinnitus, vertigo
tx: resection
Subarachnoid Hemorrhage(SAH) sx?
sudden or severe HA, stiff neck, photophobia, LOC(50%), FND(30%), fever
Subarachnoid Hemorrhage(SAH) tx?
angiography to determine the site of bleeding, embolize, shunt of hydrocephalus, NIMODIPINE PO to prevent stroke
what drug do you give in subarachnoid hemorrhage that will prevent stroke?
Nimodipine
Syringomyelia
sx? tx?
- fluid filled widening of the spinal cord
sx: loss of pain, temp in the upper extremities bilaterally in a cape-like distribution over the neck and shoulder and down both arms
tx: MRI then surgery
Subacute Degeneration of the Cord
cause: B12 or neurosyphillus
sx: no position or vibration
Cord Compression
sx? tx?
sx: pain and tenders of the spine + hyperreflexia
tx: steroids
Anterior Spinal Artery Infarct
sx?
all sensation loss expect Position and vibration(these down posterior column),
Brown-Sequard Syndrome
sx?
loss of ipsilateral position, vibratory sense, contralateral pain and temperature.
Amyotrophic Lateral Sclerosis(ALS)
sx? UMN? LMN?
upper and motor neuron sx that often starts in arms. seen in 20-40yoa, death 3-5 yrs afterward
- UMN: hyperreflexia, upgoing toes, spasticity, weakness
- LMN: wasting, fasciculations, weakness
tx of Amyltrophic lateral sclerosis(ALS)
riluzole
Charcot-marie-Tooth Disease
sx?
- demylination of peripheral nerves
- decreased motor and senory
- wasting in legs, decreased DTR, tremors, Pes Vavus(HIGH FOOT ARCH), distal weakness & sensory loss
Radial nerve palsy
saturday night palsy = wrist drop
*crutches use compresses nerve
Restless Leg Syndrome tx
pramipexole or ropinirole
Myasthenia Gravis
sx? dx? tx?
- ab to ACh receptros at NMJ
sx: protosis, weakness, worse at the end of the day, weak muscles of masticaion
dx: endrophonium(AChE inhibitor)
tx: pyridostigmine or Neostigmmine(AChE inhibitor)
person with myasthenia gravis. what do you need to look out for?
thymoma
Tuberous Sclerosis
sx? tx?
seizures, mental deterioration, retinal lesions
SKIN: adenoma sebaceum(red face nodules), Shagreen Patches(leathery patches on trunk), Ash leaf spots(hypopigmented spots)
tx: control seizures
Neurofibromatosis
sx? tx?
sx: soft flesh-colored lesions on skin +peripheral nerves, CN 8 tumors, Cafe-au-lait spots +/- gliomas
tx: decompress CN8
Sturge-Weber Syndrome
tx? sx/
sx: seizures, port wine stain, CNS eye shit, Calcifications of angiomas, hemiparesis
tx: control seizures
which 4 causes of vertigo will have hearing loss? whats the big difference between the two?
- Labyrinthitis = acute w/hearing loss and tinnitis
- Meniere’s disease = chronic = multiple episodes w/hearing loss and tinnitis
- acoustic neuroma = ataxia w/hearing loss and tinnitis
- Perilymph Fistula = hx of trauma w/hearing loss and tinnitis
causes of peripheral vertigo?
meniere disease, labyrinthitis, BPPV, perilymphatic fistula
which 2 types of vertigo have no hearing loss ? what the difference between them?
BPPV = veritgo with head movement
Vestibular Neuritis = vertigo regardless of head movment
Idiopathic Intracranial HTN
rf? sx? dx? tx?
Idiopathic Intracranial Hypertension:
- RF: overweight women of childbearing age, possible link to some meds(vit A, tetracyclines)
- SX: HA, TRANSIENT VISSION LOSS(PAPILEDEMA), PULSATILE TINNITUS, diplopia
- PE: papilledema, peripheral Visual Field defect, CN 6 palsy
- DX: MRI & LP(>250)
- TX: stop meds, weight loss, acetazolamide