Neurology Flashcards
Treatment for tension headaches (acute, chronic)
Acute
1. Paracetamol/ ibuprofen/ aspirin
Chronic
1. Acupuncture
Features of a migraine with aura (4) and without (4,2)
Migraine with aura At least x2 episodes between 5 ad 60 minutes 1. Visual sx 2. Change in speech 3. Sensory sx 4. Fully reversible
Without At least x5 attacks lasting 4-72 hours 1. Unilateral 2. Unable to do day to day activities 3. Throbbing/pulsatile 4. Mod/severe pain AND At least x1 of: 1. N&V 2. Phonophobia/ photophobia
Management of migraines (acute 2, prophylaxis 4)
Acute
- Triptan PO +/- paracetamol/ ibuprofen/ aspirin
- Metoclopramide/ prochlorperazine
Prophylaxis
- Propranalol OR topiramate OR amitryptilline
- Behavioural interventions OR riboflavin
Features of temporal arteritis (6) Management (1) Where is it tender? One or two sides? Age? Onset speed Blood finding Other symptom
Features 1. Tender/ palpable temporal artery 2. Unliateral 3. >60yo 4. Rapid onset <1 month 5. Jaw claudication 6. Raised ESR Management Emergency 1. Prednisolone 60mg PO tapering over 1-2 years
Features (4) and management of trigeminal neuralgia (1)
Features 1. Worse on chewing/ brushing hair/ light touch 2. Lasts a few seconds to minutes 3. Unilateral 4. Severe electric shock like pains Treatment 1. Carbamezapine
Features of MS
visual (3), sensory (2), motor (2), cerebellar (2), other (2)?
Visual 1. Optic neuritis 2. Optic atrophy 3. Uhthoff's phenomenon (worsening of vision on neck flexion) Sensory 4. Pins and needles 5. Lhermitte's syndrome (parasthesia in limbs on neck flexion) Motor 6. Spasticity 7. Weakness Cerebellar 8. Ataxia 9. Tremor Other 10. Urinary incontinence 11. Sexual dysfunction
Name three types of MS Diagnosis definition Management acute (1), chronic (4)
Types
- Relapsing-remitting (RR)
- Primary progressive - deteriorate from onset
- Secondary progressive - deteriorating on BG of RR
Diagnosis
1. x2 relapses with x2 objective clinical evidence
OR
2. x1 objective clinical evidence of lesion with x1 reasonable evidence of prev relapse
Mx
Acute
1. High dose steroids - methylpred for 5/7 (to reduce duration)
Chronic
- Beta interferon
- Glatiremer acitate
- Natalizumab
- Fingolimod
Menstrual migraine management (2)
- Frovatriptan OR
2. Zolmitriptan
Features (6) and treatment acute (2) and prophylaxis (2) of cluster headaches
Features 1. M>F 2. Smokers 3. Unilateral (always same side), periorbital 4. Ptosis and miosis 5. Lacrimation/ redness 6. Nasal congestion Management Acute 1. 100% oxygen 2. SC triptan (sumo) Prophylaxis 1. Verapamil 2. +/- Prednisolone tapering dose
Symptomatic management of MS
Fatigue (2)
Spasticity (3)
Oscillopsia (1)
Fatigue
- Amantadine
- CBT
Spasticity
- Baclofen OR gabapentin
- Diazepam/ dantrolene/ tizanidine
- Physio
Oscillopsia
1. Gapapentin
Sx of anterior cerebral infarct (1)
Contralateral hemiparesis and sensory loss of lower extremities > upper
Sx of middle cerebral artery infarct (3)
Contralateral hemiparesis and sensory loss upper extremities > lower
Contralateral homonomous hemianopia
Aphasia
Posterior cerebral artery infarct (2)
Contralateral homonomous hemianopia with macular sparing
Visual agnosia
Basilar artery infarct (pons) (1)
Locked in syndrome
Weber’s syndrome (branches of PCA that supply the midbrain) (2)
Ipsilateral CN III palsy
Contralateral hemiparesis of upper and lower extremity
Posterior inferior cerebellar artery (lateral medullary syndrome) (4)
- Ipsilateral face pain and temperature loss
- Contralateral torso and trunk pain and temperature loss
- Ataxia
- Nystagmus
Anterior inferior cerebellar artery (lateral pontine syndrome) (4)
- Ipsilateral facial paralysis deafness
- Contralateral torse/ trunk pain and temperature loss
- Nystagmus
- Ataxia
Lacunar (2)
- Isolated hemiparesis/ hemisensory loss/ hemiparesis with limb ataxia
- Strong assoc HTN
Retinal/ Ophthalmic Artery
Amaurosis fugax (painless total loss of vision)
Oxford Stroke Classification/ Bamford (3)
- Hemiparesis/ hemisensory loss
- Homonomous hemianopia
- Congnitive dysfunction
TACI, PACI, POCI, LACI
TACI - total anterior circulation infarct
Involves MCA + ACA (all 3)
- unilateral hemiparesis and/or hemisensory loss of the face, arm & leg
- homonymous hemianopia
- higher cognitive dysfunction e.g. dysphasia
PACI - partial anterior circulation infarct
Small arteries of anterior circulation (MCA+ACA)
2 of 3 criteria
1. unilateral hemiparesis and/or hemisensory loss of the face, arm & leg
2. homonymous hemianopia
3. higher cognitive dysfunction e.g. dysphasia
LACI lacunar infarcts
Involves perforating arteries around internal capsule, thalamus, basal ganglia
1 of below
1. unilateral weakness (and/or sensory deficit) of face and arm, arm and leg or all three.
2. pure sensory stroke.
3. ataxic hemiparesis
POCI posterior circulation infarct
Which artery?
Features (3)
Vertebrobasilar artery 1 of following 1. cerebellar or brainstem syndromes 2. loss of consciousness 3. isolated homonymous hemianopia
Features of haemorrhagic stroke (4)
- Decreased level of consciousness
- Headache
- N+V
- Seizures
Criteria for thrombolysis for ischaemic stroke (2)
- Within 4.5hrs of onset of symptoms
2. Nil hx of preeclampsia/ pregnancy/ intracranial haemorrhage
Acute stroke investigation and management If ischaemic --> If secondary to AF --> If cholesterol raised --> Offer thrombectomy -->
CT to rule out haemorrhagic stroke
If ischaemic - 300mg aspirin
If secondary to AF - anticoagulation not to be started for 2 weeks, 300mg aspirin in the interim
If cholesterol >3.5 start on statin
Offer thrombectomy if:
1. confirmed occlusion of the proximal anterior circulation demonstrated by CTA/MR within 6 hours of onset
OR
2. confirmed occlusion of the proximal anterior circulation demonstrated by CTA/ MR AND potential to salvage brain tissue if within 24 hours of onset
For all other locations consider if within 24 hours
Stroke
Secondary prevention treatment (4)
- Clopidogrel 75mg OD
If contrainidicated - MR dipyridamole + aspirin
PLUS
- Statin
- Antihypertensives
Criteria for carotid artery endarterectomy for stroke treatment (2)
- Not severely disabled
2. Carotid stenosis must be >70% (or 50% in different source)
TIA management
Acute (1)
TIA <1 week
TIA >1 week
- Aspirin 300mg
- If has had TIA within 1 week, refer for urgent specialist assessment within 24 hours
- If has had TIA >1 week ago, refer for specialist assessment within a week
Blood supply to cranial nerves
Midbrain
Pons
Medulla
Midbrain
III, IV
Pons
V, VI, VII, VIII
Medulla
IX, X, XI, XII
Management of epilepsy
Generalised tonic clonic
1. (1)
2. (2)
- Sodium valproate
- Lamotrogine/ carbamezapine
TLC
Management of epilepsy
Absence seizures
1. (2)
- Sodium valproate/ ethosuximide
AbScencE
Management of epilepsy
Myoclonic
1. (1)
2. (2)
- Sodium valproate
- Clonazepam, lamotrogine
MyoCLonic
Management of epilepsy
Focal seizures
1. (2)
2. (3)
- carbamazepine/ lamotrigine
2. levetiracetam/ oxcarbazepine/ sodium valproate
Carbamazepine can exacerbate which two types of seizures
- Myoclonic
2. Abscence
Myoclonic and abscence seizures are exacerbated by which antiepileptic?
Carbamazepine
Commonest causes/type of dementia (3)
- Alzheimers
- Vascular
- Lew body
Creutzfeldt-Jakob disease
Symptoms (4)
Caused by build up of ____ (1)
Variant caused by ______ (1)
- loss of intellect and memory
- changes in personality
- loss of balance and co-ordination
- progressive loss of brain function and mobility
Caused by build up of prions
Variant CJD - caused by contamination of meat
Vascular dementia Sub types (3)
- Stroke related VD - multi or single infarct
- Subcorticol VD - small vessel disease
- Mixed (AD +VD)
Vascular dementia
Features (8)
- Stepwise deterioration
- Seizures
- Mood changes
- Reduced attention/ concentration
- Motor/ sensory loss
- Memory disturbance
- Speech disturbance
- Gait disturbance
Diagnosis for VD using NINDS-AIREN criteria (3)
- Cognitive decline
- using clinical examination and neuropsychological testing - CVD
- through neuro exam OR
- imaging (MRI) - Association between the above two
- onset of symptoms within three months following stroke
- stepwise progression
- abrupt deterioration in cognitive functions
Management of VD
Non pharmacological (1)
Pharmacological (1)
Non pharma
1. Musical/ art therapy
Pharma
1. Memantine or ACE inhibitors if mixed with AD, PD or Lewy body dementia
Lewy Body Dementia Features (4) Diagnosis (2) Mx (2) What drugs to avoid? (1)
Features
- Cognitive impairment, fluctuating
- Attention and executive function seen early
- Parkinsonism
- Visual hallucinations
Dx
- Clinical
- SPECT
Mx
- As AD, donepezil/ / galantamine/ rivastigmine (AChEi) mild to mod
- Memantine severe (NMDA antag)
Avoid
1. Antipsychotics - risk of irreversible Parkinsonism
Alzheimer's disease Management Mild-moderate (3) Mod-severe (1) Severe (1)
Mild-mod 1. Donepazil (AChEin) (CI if bradycardia) 2. Rivastigmine 3. Galantamine Mod-severe 1. Combi Severe 1. Memantine (NMDA)
Normal pressure hydrocephalus
Triad (3)
Imaging findings (2)
Management (1)
Triad
- Shuffling gait/ gait abnormality
- Urinary incontinence
- Dementia + bradyphenia (slowness of thought)
Imaging CT/MRI
- Hydrocephalus with ventriculomegaly
- Absence of sulcal atrophy
Management
1. Ventriculoperitoneal shunt
Parkinson's disease Triad Gender, age Other features (6) Drug induced features (3) Ix (2)
Triad 1. Bradykinesia (slowness of movement) 2. Tremor (resting, pill rolling) 3. Rigidity (cog wheel+lead pipe) M>F, median age 65yo
Features
- Mask like face
- Depression/ psychosis
- Asymmetrical
- Micrographia
- Salivation
- Flexed position
Drug induced features
- Bilateral
- Rapid onset
- Rigidity and tremor not present
Ix
- Clinical
- SPECT
Parkinson’s Disease
Mx
First line (3)
Second line (3)
First line, given in early PD with sx impacting daily lives
- Levodopa with dopa decarboxylase inhibitor (co-beneldopa)
- Dopamine agonist
- MAO-B inhib
Second line
- COMT inhibitors
- Amantadine
- Deep brain stimulation
Investigations needed prior to starting dopamine agonists (4)
- CXR
- ECHO
- ESR
- Creatinine
Name 8 causes of Parkinsonism
- Drug induced (antipsychotics + antiemetics)
- Parkinson’s disease
- Wilson’s disease
- Dementia pugillistica (boxers dementia)
- Post encephalitis
- Progressive supranuclear palsy
- Multiple system atrophy
- Toxins e.g CO, MPTP
Acoustic neuroma (aka vestibular schwannoma)
Features (4)
Bilateral vestibular schwannomas are seen in _______
Ix (1)
Mx (4)
- Vertigo
- Tinnitus
- Absent corneal reflex
- Hearing loss
Bilateral vestibular schwannomas are seen in: Neurofibromatosis type 2
Ix MRI
Mx
- Refer to ENT
- Surgery
- RT
- Observation
Parietal lobe lesions (4)
Integrating sensory information, including touch, temperature, pressure and pain
- Apraxia (difficulty with the motor planning to perform tasks or movements when asked)
- Sensory inattention (neglect)
- Astereognosis (unable to recognise object in hand with eyes closed)
- Inferior homonomous quadrantanopia
Cerebellum lesions (5)
- Dysdiadokinesis
- Past pointing
- Intention tremor
- Nystagmus
- Gait and truncal ataxia
Temporal lobe lesions (4)
- Wernicke’s receptive aphasia
- Superior homonymous quadrantanopia
- Prosopagnosia (face blindness)
- Auditory agnosia
Frontal lobe lesion (5)
- Personality change
- Expressive (Broca’s) aphasia
- Perseveration
- Anosmia
- Disinhibition
Kluver-Bucy syndrome
Lesion in which location (1)
Name 3 features
- Amygdala
Features - Hypersexuality
- Hyperorality (excessive chewing, lip smacking)
- Hyperphagia (excessive eating/ desire of food)
Bell’s Palsy - facial nerve paralysis
Age range
Features (2)
Rx (3)
Age range 20-40yo Features 1. LMN 2. Affects forehead Mx 1. If within 72 hours of onset, for prednisolone 50mg 2. +/- acyclovir 3. Eye lubrication
Syringomelia What is it? Causes (4) Symptoms (3) Ix (1) Mx (2)
Increased CSF at segmental level (in the spinal cord) Causes 1. Trauma 2. Tumour 3. Chiari malformation 4. Idiopathic Sx 1. Bilateral loss of pain and temp 2. Cape like distribution (neck, back and arms) 3. Spastic weakness of upper limbs (due to impact on corticospinal) 4. Horners Ix 1. MRI Mx 1. Treat underlying cause 2. Shunt
Neuroanatomy
Name three tracts and features
- Corticospinal - motor, muscles weakness
- Spinothalamic - sensory, pain and temperature, crosses at the level of the spinal cord
- DCML - sensory, light touch
Brainstem Strokes (3)
- Midbrain - Weber’s
- Pons - Locked in
- Medullary - Wallenburg/ lateral medullary
What is cataplexy?
Sudden and transient loss of muscular tone caused by strong emotion.
Common in narcoplexy
E.g ranging from buckling kness to collapsing
Idiopathic intracranial hypertension
RF (4, 4 -5)
RF
- Female
- Obese
- Pregnancy
- Drugs e.g COCP, steroids, tetracycline, lithium, vit A
Idiopathic intracranial hypertension
Features (5)
Mx (5)
Features
- Papilloedema
- Large blind spot
- Headache
- Blurred vision
- CN V1 palsy
Mx
- Weight loss
- Acetozolamide
- Topiramate
- Repeat LP
- Surgery optic nerve sheath decompression and fenestration or shunt
Mononeuropathies Ulnar nerve Nerve Roots Sensory (1) Motor (3) Damage
C8, T1
Medial 1.5 fingers
Adductors, interossei, hypothenar
Claw hand
Mononeuropathies Radial nerve Nerve Roots Sensory Motor Damage
C5-T1, lateral epicondyle
Proximal phalanges on the dorsal aspect of the hand
Extensors, abductor pollicis longus, supinator
Wrist drop
Mononeuropathies Median Nerve Roots Sensory Motor Damage
C6, C8, T1
Fingers 1-3.5
LOAF muscles, lumbricals, opponens pollicis, abductor pollicis brevis, flexor pollicis brevis, pronation
Carpal tunnel
Carpal Tunnel
Signs (4)
Treatment (3)
Features
- Phalens (prayer)
- Tillens (tapping over median causes sx)
- Thenar wasting
- Weakness of thumb adduction
Treatment
- Steroid injection
- Wrist splint
- Surgical decompression
Carpal Tunnel
Causes
Causes MEDIAN TRAPS Myxoedema Enforced flexion (Colle's fracture) Diabetic neuropathy Idiopathic Acromegaly Neoplasms Tumour (benign) Rheumatoid arthritis Amyloidosis Pregnancy Sarcoidosis
Meralgia paraesthetica which nerve?
Nerve roots
Is it more common in men or women?
Average age group
Lateral cutaneous nerve of the thigh
L2 L3
Men
30-40
Meralgia paraesthetica Features (4) Type of pain (3) Aggravated by? Relieved by?
Ix (1)
Features
- Aggravated by standing, and relieved by sitting
- Burning, tingling, coldness, or shooting pain
- Numbness
- Deep muscle ache
Ix
1. Pelvic compression test
- Foot drop is caused by what nerve?
- Name two muscles that are weakened in foot drop
- What is the sensory loss?
- Nerve roots
- Sciatic nerve
- Hamstrings, calf muscles
- Reduced sensation below knee
- L4-S3
Wernicke’s encephalopathy
Triad of symptoms (3)
Treatment (1)
Korsakoff’s features (2)
- Ophthalmoplegia (paralysis of eye muscles)/ nystagmus
- Ataxia
- Confusional state
Rx - thiamine
- Antero + retrograde amnesia
- Confabulation
- Cafe au lait spots
- Axillary and groin freckles
- Iris haematomas (Lisch nodules)
= which condition?
Type 1 –> common in, chrm
Type 2 –> common in, chrm
Neurofibromatosis
NF1 von Recklinghausen’s syndrome, chrm 17
NF2 bilateral vestibular schwannomas (acoustic neuromas), chrm 22
- Epilepsy
- Ash leaf spots
- Shagreen patches
- Angiofibromas - butterfly distribution on nose
- Developmental delay + intellectual impairment
Tuberous Sclerosis
Huntington’s
Age
Chrm
Features (4)
> 35yo
AD, chrm 4
Features
- Chorea
- Dystonia (muscles contract uncontrollably)
- Saccadic eye movements
- Personality changes
MND - what is it?
Name three types
Causes upper or lower motor neuron signs, nil sensory symptoms.
- Amyotrophic lateral sclerosis
- Progressive muscular atrophy
- Bulbar palsy
MND
Features (4)
Treatment for amyotrophic lateral sclerosis
Features
- Upper and lower motor neuron signs
- Fasciculations
- Nil sensory signs
- Wasting of lumbricals, interossei and tibialis anterior
Tx
- Riluzole
- BIPAP
What is bulbar disease?
What cranial nerves does it affect?
What is corticobulbar palsy?
UMN or LMN signs?
An MND that affects CN IX-XII and causes LMN signs
An MND that affects CN IX-XII and causes UMN signs
What is progressive muscular atrophy
A type of MND
Anterior horn lesion
Nil UMN signs
Myasthenia Gravis
What is it?
Antibodies against?
Features (4)
Autoimmune disease, antibodies against acetylcholinesterase receptors
Features
- Muscle fatigueability (worse over day)
- Proximal muscle weakness: face, neck, limb girdle
- Dysphagia
- Ptosis
An inherited myopathy affecting skeletal, cardiac and smooth muscle.
Average age 20-30
Features
- Haggard, long face
- Dysarthria
- Frontal balding
- Bilateral ptosis
- Cataracts
Myotonic dystrophy
Myasthenia Gravis
Treatment (3)
- AchR inhib - pyridostigmine
- Prednisolone
- Thymectomy
Guillian Barre
What is it?
What is it normally caused by?
Immune mediated demyelination
Progressive, symmetrical weakness of all the limbs ascending in nature
Campylobacter jejuni
Third nerve palsy features (3)
- Down and out
- Ptosis
- Dilated pupil
Subdural haemorrhage on CT findings
Chronic subdural haemorrhage more common in? (2)
Crescenteric
Chronic subdural haematoma common in elderly and ETOH excess
Reye’s syndrome features (5)
- Age 2
- Progressive encephalopathy
- Fatty infiltration of liver, kidneys and pancreas
- Following viral infection
- Low glucose
Reflexes nerve roots Ankle Knee Biceps Triceps
Ankle S1-S2
Knee L3-L4
Biceps C5-C6
Triceps C7-C8
Neuroleptic malignant syndrome features (4)
Following antipsychotics
- Fever
- Autonomic lability (tachy, HTN, high RR)
- Muscle rigidity
- Confusion
Multiple system atrophy features (5)
- Parkinsonism
- Cerebellar signs
- Atonic bladder
- Erectile dysfunction
- Postural hypotension
Degenerative cervical myelopathy
Ix
What sign can be seen O/E
MRI of the cervical spine is the gold standard test
Hoffman’s Flicking one finger on a patient’s hand +ve if results in reflex twitching of the other fingers on the same hand in response
Duchenne Muscular Dystrophy
Features (4)
- Gower’s sign
- Progressive proximal muscle weakness from 5 years
- Calf pseudohypertrophy
- Intelectual disability
- X linked
Becker muscular dystrophy (2)
- develops after the age of 10 years
2. intellectual impairment much less common
- absent ankle jerks/extensor plantars
- cerebellar ataxia
- optic atrophy
- spinocerebellar tract degeneration
- cardiomyopathy
AD/AR
Age
Friedreich’s ataxia
- Autosomal recessive
- 10-15yo
- cerebellar symptoms
- spider angiomas
- IgA deficiency resulting in recurrent chest infections
- risk of developing malignancy, lymphoma or leukaemia, but also non-lymphoid tumours
AD or AR
Age of onset
AR
1-5yo
Ataxia telangiectasia
GCS
Motor response
- Obeys commands
- Localises to pain
- Withdraws from pain
- Abnormal flexion to pain (decorticate posture)
- Extending to pain
- None
Verbal response
- Orientated
- Confused
- Words
- Sounds
- None
Eye opening
- Spontaneous
- To speech
- To pain
- None
Sodium valproate SE
WHATT PLANT Weight gain Hepatotoxicity Alopecia Teratogenic Tremor Pancreatitis Low sodium Ataxia Nausea Thrombocytopenia
CN3 palsy
down and out
ptosis
four extraocular muscles
CN6 palsy finding
horizontal diplopia
CN 4 palsy finding
vertical diplopia
Name 4 DA
Name 2 MAOB
Name 2 COMT
DA: Bromocriptine Ropinerole Apomorphine Cabergoline Pramipexole
MAOB: selegilene, rasigiline
COMT: entacapone, tolcapone
Name x3 drugs should not be used as first-line treatment in epilepsy due to the risk of cardiac fibrosis, what type of drug are they
bromocriptine, cabergoline and pergolide
DA
Ergot derived DA name three
Non ergot derived DA name three
bromocriptine, cabergoline, pergolide
ropinerole, pramipexole, rotogotine
infantile spasms, three-eight months, drawing up of the legs (Salaam attacks)
West syndrome
Janz syndrome
AKA
Triad
aka juvenile myoclonic epilepsy
- Infrequent generalised seizures
- Absence
- Myclonic jerks
What is Kernig’s sign?
Which two diseases is it positive in?
positive when the thigh is flexed at the hip and knee at 90 degree angles, and subsequent extension in the knee is painful
SAH + meningitis