Test 7 Neuro Flashcards
Risk factors Migraines
- FH
- Obesity
- Sleep apnea
- Head injury
- Femlae
- Analgesic overuse
- Caffiene
Common migraine S/S
- Pulsatile, throbbing
- Unilateral
- Last hours to days
- N&V
- Photo & phonophobia
- Cutaneous allodynia
Aura
10-30 min before HA
- Scintillating scotomas
- peripheral flashing lights in periphery
- pale blind spot that enlarges - Fortification spectrum
- zig zagging lines
- teichopsia - Prodrome of inc. excitability/irritability, fatigue, depression, appetite inc./cravings
Basilar migraine
- Affects basilar artery
- HA
- Vertigo
- Slurred speech
- Impaired coordination
- NO MOTOR defecits
Hemiplegic migraine
- Familial
- Paralysis on one side of body
- May persist for 24h w/o HA
Ophthalmoplegic migraine
- HA
- Eye pain
- Vomiting
- Ptosis
Mirgainous carotidynia
- Face, jaw & neck tenderness & swelling over carotid artery
- Older Pts
- Normal carotid on US
Abdominal migraine
- No HA
- Vomiting
- GI pain
- Younger Pts
Catamenial migraine
- ONLY occur at menses
When to get CT w/ migraines
- 1st or worse migraine
- New >50
- Thunderclap HA
- Abnormal neuro exam
- Rapid onset w/ strenuous activity
- HA awakens from sleep
- Meningeal signs - vomiting, AMS, personality changes, stiff neck
Tx migraine
- Excedrin migraine & NSAIDS
- Triptans
Dihydroergotamine
Antinausea for migraines
- Reglan
- Compazine
- Atarax
- Phenergan
When do you get rebound HAs & what causes them?
Overuse of meds >10days/mo
- Acetaminophen
- Narcotics
- ASA
- NSAIDS
- Ergot alkaloids
- Triptans
If overusing triptans, stop & use steroids
When do you start prophylactic migraine meds & what do you give?
- > 2 HAs/wk
- Severe
- Duration >2 days
Continue for 2-3 mo then taper/DC - Beta blockers
- Tricyclic antidepressants
- Anti-seizure meds (Depakote, Topamax)
Risk factors Cluster HAs
- Men
- 20-40 yo
- FH
- Tobacco
- Head injury
- Shift work
S/S cluster HA
Excruciating, stabbing pain, unilateral, behind eye, jaw, teeth, 15min-3h Must have 1 of: 1. Lacrimation 2. Ipsilateral nasal discharge 3. Ipsilateral flushing/sweating 4. Conjunctival redness 5. Horner's syndrome - ptosis, miosis
Tx Cluster HAs
- Triptans
- Oxygen
Prophylaxis:
- Verapamil
- Maybe steroids
S/S tension HAs
Myofascial origin
- Vice-like, gripping band HA
- Forehead-occiput bilat
- Radiates to posterior neck & trapezius
- Lasts 30mins-7days
- No N/V, photo/phonophobia, pulsatile, not worse w/ activity
Risk factors Tension HAs
- Stress/anxiety
- Depression
- Overwork
- Lack of sleep
- Posture
- Marital/family dysfunction
- Conversion
- Malingering
Tx Tension HAs
- Exercise
- Relaxation/Counseling/Yoga
- PT/acupuncture
- NSAIDS, tylenol
- Myofascial trigger point injections
- TCAs/SSRI
Causes & Risk factors Pseudotumor cerebri
aka idiopathic intracranial HTN
- Women 15-44
- Obese women
- Accutane
- Tetracyclines
- OCs
S/S pseudotumor cerebri
- Retro-orbital pain
- Worse w/ eye mvmt
- Throbbing
- Worse in am
- N&V
- Monocular/binocular vision loss
- Pulsatile tinnitus
- Neck pain
Dx pseudotumor cerebri
- Papilledema
2. LP - high opening pressure
Tx pseudotumor cerebri
- Wt loss
- Low Na diet
- Avoid sulfa meds
- Diuretics
- Steroids maybe
- NSAIDS/TCAs
- LP
- Surgery - optic nerve decompression, CSF shunt
Risk factors & Triggers Trigeminal neuralgia
- Women >40
- MS
- Washing face
- Brushing teeth
- Chewing
- Cold air
S/S trigeminal neuralgia
- R side more common
- Stabbing/electric shock
- Assoc w/ facial spasm
- Attacks last <2 mins, dailry/monthly
Tx trigeminal neuralgia
- Tegretol
- Maybe other anti-seizure meds
- Maybe baclofen, capsaicin, gamma knife, microvascular decompression
S/S concussion
- Disorientation
- Amnesia
- Confusion - vacant state, delayed answers to questions, poor concentration
Grading concussions
- Ding - confusion, no LOC, sxs 15 min
3. LOC
Glasgow coma scale
- Eye opening
- Motor response
- Verbal response
Minor: 13-15
Moderate 9-12
Severe <8
Red flags of concussion
- Mental status changes
- LOC >60s
- Pupillary asymmetry
- Vision changes
- Muscle/sensory deficits
- Cerebellar dysfunction - gait/ataxia, finger to nose testing
When do you need a CT w/ concussion?
Seizure, neuro deficit, anticoagulants
- Glasgow 60yo
- Basilar skull Fx
- Moderate pretrauma amnseia >15m
- Drug/alcohol intox
- High risk injury
S/S basilar skull Fx
- Battles sign - mastoid process, ecchymosis
- Raccoon eyes
- Hemotympanum
- CSF leakage via nose/ears
Steps to return to sports w/ concussions?
- Asymptomatic & med free x24h
- Nonimpact aerobic exercise to inc. HR x24h
- Sport-specific light drills x24h
- Non-contact training drills x24h
- Full contact practice x24h
- Return to play
S/S subdural hematoma
Bleeding btwn dura & arachnoid Tearing of the Bridging veins* 1. Confusion 2. Slurred speech 3. HA 4. Lethargy 5. LOC 6. N&V 7. Weakness
Tx subdural hematoma
Small - burr holes
Large - craniotomy to evacuate clots
S/S & Tx epidural hematoma
Bleeding btwn dura mater & skull From trauma tearing of Middle meningeal artery* Biconcave lens on CT 1. Initial LOC 2. Then lucid Talk & die
Tx - surgical evacuation, ligate bleed
S/S subarachnoid hemorrhage
Bleeding into subarachnoid space - usually due to rupture of cerebral aneurysm
- Thunderclap HA
- N&V
- Stiff neck
- Confusion
- Seizure
- Xanthochromia
What is the most common type of stroke?
Ischemic
Risk factors of aneurysm
Usually develop at branching points of arteries
- Old Black women
- HTN
- Straining
- Cocaine/amphetamines
- Blood thinners
- Alochol
What is the most common site of aneurysm?
Anterior communicating artery
Management goals of hemorrhagic stroke
- Lower BP
- Monitor cardiac dysrhythmias
- ICP monitoring
- Normothermia
Causes of hemorrhagic stroke
- HTN
- Aneurysm
- AV malformation
Causes of ischemic stroke
- Thrombotic - atherosclerosis
- Embolic - carotids & heart
- Lacular infarct
Risk factors of ischemic stroke
- HTN
- Old Fat lazy blacks
- FH
- CAD
- Smoking
- Hypercholesterolemia/triglycerides
- Aortic arch plaque
- Migraine w/ aura in women >35 that smoke &/or use OCs
S/S TIA
Sudden onset of neuro deficit
- Speech
- Monocular blindness
- Hemiparesis
- Amaurosis fugax
Sx resolve w/in 24h
How much of the carotid is occluded if you can hear a bruit?
50%
Dx w/ ultrasoud or MRA
Angiography Gold std but invasive
What are lacunar infarcts?
Occlusion commonly affecting caudate, thalamus & putamen
S/S Anterior cerebral artery occlusion
- Confusion
- Amnesia
- Personality change
- Cognitive changes
- Contralateral hemiparesis
- Contralateral sensory impairment
- If left = expressive aphasia
- Eyes deviate toward affected side
S/S Middle cerebral artery occlusion
MC embolus
- Contralateral sensory/motor deficits
- Head & eyes deviate towards infarct
- Neglect to affected side
- Dysphagia
- Initially dec. muscle tone then spasticity develops
- Homonymous hemianopsia
- If L - global aphasia then Broca’s aphasia
S/S posterior circulation infarct
- Nystagmus
- Ataxia
- Vertigo
- Dysphagia
- Dysarthria
- Sensory aphasia
- Alexia
NIH stroke scale
0: No stroke 1-4: Minor stroke 5-15: Moderate stroke 16-20: Mod-severe stroke 21-42: Severe stroke
When do you use TPA?
- > 18
- NIH stroke scale 5 or +
- <3h since onset of Sxs
Post CVA mgmt
- Control BP, glucose, fever
- Cerebal edema - mannitol, hyperventilation
high risk of depression
Where is the most common site for bacterial meningitis?
Subarachnoid space
Where does bacterial meningitis usually come from?
- Otitis media
- Sinusitis
- PNA
- Immunocompromised
Organisms of bacterial meningitis
Infants - Group B beta-hemolytic strep & enteric gram - bacilli
Kids - H. flu, N. meningitidis, S. PNA
Adults
- Strep pneumo
- N. Meningitidis
- Staph
Old people - S. pneumo, E. coli, Klebsiella, listeria
S/S Bacterial meningitis
- HA
- Stiff neck
- Fever
- Photophobia
- Kernig’s sign
- Brudzinski’s sign
- Skin rash w/ N. meningococcal (petechial)
Tx bacterial meningitis
- Vanco + Ceftriaxone
- Dexamethasone (steroid)
If >50 Add ampicillin
Complications of bacterial menigitis
- Cerebral edema
- Vasculitis
- Inc. ICP
- Hydrocephalus
- Seizures
- DIC
Post exposure prophylaxis of bacterial menigitis
- Rifampin
- Cipro
- Ceftriaxone
Causes of viral menigitis
Much more common but less deadly than bacterial
Kids - Enterovirus, arbovirus, HSV, borrelia burgdoferi, coxsackie
Adults
- Enterovirus
- HSV
- Varicella-zoster
S/S viral meningitis
- Flu-like Sx
- HA
- Fever
- Malaise
- Photophobia
- Meningeal irritation
Who gets TB meningitis & Tx?
Immunocompromised Spreads from lungs Tx 1. INH 2. Streptomycin 3. Rifampin 4. Pyrazinamide