Neurology Flashcards
Cluster headache features
Eye swelling, redness, nasal stiffness, severe pain
Cluster headache prophylaxis
Verapamil
Cluster headache management
Oxygen and triptan
What antinausea medication is CI in parkinsonism
Metoclopramide
unprovoked 1st seizure and driving
6 months
unprovoked 1st seizure and driving
6 months
Prodrome before Syncope
Reflex or neurally mediated syncope
Benign positional Vertigo
Movement of head
Meniere
Attacks of vertigo + tinnitus + progressive hearing loss
treating MG crisis
Plasmapheresis and IV immunoglobulin
treating MG crisis
Plasmapheresis and IV immunoglobulin
Treatment of Neuropathic pain
Amitriptyline, Duloxetine, gabapentin and pregabalin
Autonomic Dysreflexia
Spinal cord injury patients, trigger fecal impaction or urinary retention; extreme hypertension, flushing and sweating.
Asymmetrical features, resting tremor, increased tone
parkinson’s disease
Bilateral symptoms, antidopaminergic drugs
Drug induced parkinson
Supranuclear palsy
Plus syndrome; vertical gaze palsy, Axial rigidity
Lewy body dementia
Parkinsonism + dementia near onset of symptoms + nocturnal wandering
Lewy body dementia
Parkinsonism + dementia near onset of symptoms + nocturnal wandering
Todd’s Paralysis
focal weakness after a focal seizure
Chronic presentation after head injury
Subdural hepatoma
Diagnosis of GBS
Nerve conduction study
Motor deficit but eye movements spared
MND
1st line for PD if affected motor symptoms
Levodopa
Hallucinations, epigastric rising, emotions, Automatisms such as lip smacking, grabbing and plucking, deja vu and dysphasia
Temporal lobe epilepsy
Head/leg movements, posturing, post-octal weakness and Jacksonian march
Frontal lobe epilepsy
Visual flashes and floater during seizure
Occipital lobe
Contraindications to triptans
CAD as cause vasospasm
Treating Spasticity in MS
Gabapentin and Baclofen
History of sinusitis, headache, fever, and focal neurology
BRAIN abscess
unilateral facial edema, photophobia, proposes and CN palsy
cavernous sinus thrombosis
Pain, opthalmoplegia, proposes, CN5 lesion (ophthalmic ) and Horner’s Syndrome
Cavernous sinus syndrome
VF and VT pulseless - ALS
CPR + 1 shock
Adrenaline after 3rd shock
GCS - Important
EVM
E: eye movement- Spontaneous (4), to voice (3), to pain (2)
V: Verbal response: Oriented (5), Confused (4), inappropriate words (3), inappropriate sounds (2) and no (1)
M: Follows command (6), localizes to pain (5), Withdrawal from pain (4), Inappropriate flexion (3), inappropriate extension (2) and no (1)
Describe Lhermitte’s sign and associated diseases
Tingling in hands with flexion of neck
Associated disease - MS and Subacute degeneration of cord
What is Uhtoff’s Phenomenon; where is it seen
Worse vision with rise in temperature
MS
Encephalitis cause mostly*
HSV-1; use acyclovir drug
Lucid interval
Extra-dural hematoma
Biconvex hematoma
Extradural
Crescent shaped hematoma
Subdural hematoma
Acoustic neuroma best diagnostic test
Cerebellopontine angle MRI
Chronic subdural Hematoma - Symptomatic patient - management
Burr hole evacuation
Chronic subdural hematoma - Asymptomatic management
Conservative management or high dose steroids
Management of acute subdural hematoma
Decompressive surgery
What is Nimodipine used for in the management of Hematomas
Prevents secondary cerebral ischemia; increases cerebral vasodilation.
1st line for Trigeminal neuralgia
Carbamazepine
Loss of ability to produce language, comprehension is intact.
Broca’s Aphasia
Wernicke’s Aphasia / receptive aphasia
Impaired comprehension but retained speech, cannot repeat words
Both comprehension and language production impaired
Global aphasia
Primary progressive aphasia
Gradual loss of language, dementia related
CHA2DS2VAS
CHF 1 Hypertension 1 Age >75 2 Diabetes 1 Stroke/TIA 2 Vascular disease 1 Age 65-74 1 Female 1
Management of Status Epilepticus
1st line: Benzodiazepines (rectal diazepam); IV lorazepam (can be repeated after 10-20 minutes
2nd line: Phenytoin or phenobarbital infusion
Refractory status: General anaesthesia
IVF increases the risk of what placental abnormality
Placenta previa
what risk factor is associated with Vasa previa
Previous C-section
Multiple episodes of TLC with quick recovery time; Investigation of choice
24 hour ECG
Steven-Johnson syndrome is a side effect of what antiepileptic
lamotrigine
Hemonymous hemianopia with macula sparing - stroke
Posterior cerebral artery
Ipsilateral ataxia, nystagmus, dysphagia, facial numbness, CN palsy, with contralateral hemisensory loss indicates
Lateral Medullary syndrome
Isolated hemisensory loss
Lacunar infarct
Post-ictal weakness in a focal seizure is Called
Todd’s paresis
Urinary incontinence + Gait abnormality + dementia
Normal pressure hydrocephalus
Tumour arising from falx cerebri and pushes on the brain; well defined border between the tumour and brain parenchyma
Meningiomas
What is oligoclonal bands most associated with
Multiple Sclerosis
Autonomic dysreflexia occurs above what level of spinal cord
Above T6 level
Gold standard for Cauda equina syndrome
MRI spine
BP management in stroke
> 180 mmHG
Distended neck veins in Myasthenia may be caused by
Thymomas
management of idiopathic intracranial hypertension
Acetazolamide
Antipsychotics are 1st line for delirium however they are CI in what condition
Parkinson’s Disease
Autosomal Polycystic kidney is associated with what hemorrhage
SAH
What is used to treat cerebral edema in patients with brain tumours
Dexamethasone
Myasthenia crisis respiratory test
FVC
Choice of investigation in GBS
Lumbar puncture
Ipsilateral face and contralateral limbs - affected
Lateral medullary syndrome PICA
Wernicke’s aphasia (receptive)
Affects the superior temporal gurus; speech is fluent comprehension is impaired
Broca’s aphasia
Inferior frontal gurus
Non-fluent speech, laboured, repitition is impaired and comprehension is normal
Patient with lung cancer; high BP + Vomiting and severe headaches
Cerebral metastasis
1st line Neuropathic pain
Amitriptyline, Pregabalin, duloxetine and gabapentin
Unilateral sensorineural hearing loss- Investigation
MRI - rule out vestibular schwannoma
Pituitary tumour in Optic chiasm causes
Bitemporal hemianopia
What is Cataplexy
Loss of skeletal muscle tone with strong (usually) positive emotions
Double vision, ptosis, dysphagia and slurring speech with day progressing
MG
common origin of brain Metastasis
Breast, lung, kidney, thyroid, stomach, prostate and skin
Most common primary brain tumour
Glioblastoma
Hearing loss, vertigo, tinnitus and absent corneal reflex, Associated to neurofibromatosis type 2
Acoustic neuroma
causes facial numbness, weakness, absent corneal reflex and facial palsy
Diagnosis of Acoustic neuroma
Gadolinium enhanced MRI
Rinne’s Test
air conduction > bone conduction is normal
Bone conduction > Air conduction - Conductive hearing loss
Webers test
Normal = Both ears
Louder in the normal ear and not louder in the ear with the sensorineural loss
Stroke and facial palsy -
Will cause drooping of the face and not the forehead - Contralateral
Bell’s palsy causes what type of facial palsy
Forehead + Lower face - ipsilateral
management of Bell’s palsy
prednisolone + antivirals
eHeaye care
no improvement in 3 weeks: refer to ENT
headache, nausea, vomiting, papilledema, increased CSF pressure, WCC and signs of infection (sinus or mastoid)
Brain abscess
Ring enhancing lesion on CT and signs of infections
Brain abscess
Management of community acquired Brain abscess
3rd generation cephalosporin + Metronidazole
what can not be seen on CT in a brain metastasis
micrometastasis
Unilateral headache of extreme intensity, redness, lid swelling, nasal stiffness, miosis and ptosis, injection of the eyes
Cluster headache
Acute management of cluster headache
Triptan and high flow oxygen therapy
can be aborted using prednisolone
Prophylaxis of cluster headache
Verapamil or lithium
Mixed syndrome affecting the motor, sensory, and autonomic nerves
Diabetic neuropathy
Management of diabetic neuropathy
1st line Amitriptyline, duloxetine, pregabalin, gabapentin
Tramadol for rescue
Abrupt onset, short, glazed eyes, and blank stare, normal brain scan, clonus; EEG 3Hz spike and wave
Absence seizure or petit mal
Sudden jerk of limb, face and trunk
Myoclonic seizure
Sudden loss of muscle tone and causing fall, No LOC, Seizure type
Atonic seizure
Clusters of head nodding and arm jerking, EEG shows hypsarrhythmia
West syndrome also called infantile spasms
Automatisms include
lip smacking, chewing
Automatism, deja vu, jamias Vu, delusional behaviour, emotional disturbance and taste and smell; ANS, automatic speech
Temporal lobe epilepsy
Jacksonian march, and todds palsy
Frontal lobe epilepsy
Visual phenomena such as spots, lines and flashes causing epilepsy
Occipital lobe epilepsy
somatosensory symptoms such as tingling, pain, numbness, pricking, vertigo, distortion of space
Parietal lobe epilepsy
Treatment of choice for absence seizures
Ethosuximide
Steven johnson syndrome is a side effect of this AED
Lamotrigine
cerebellar syndrome, hirtuism, ataxia, nystagmus, dysarthria, gingival hypertrophy are SE of this AED
phenytoin
Manage status epilepticus
Lorazepam (2 times)
Phenytoin
Anaesthesia with propofol or thiopental
treating partial seizures
Lamotrigine or carbamazepine
Common cause of encephalitis in immunucompetent
HSV, Tb and VZV
Immunocompromised VZV >HSV
Personality change, meningeal signs, confusion, low GCS, seizures
Encephalitis
CT changes in Encephalitis
Medial temporal and inferior frontal changes - petechial hemorrhage
Management of Encephalitis
Acyclovir
Fine tremor, worse when arms outstretched, symmetrical, prominent on voluntary movement, worse when tired, absent during sleep and improves with alcohol
Benign essential tremor
Management of benign essential tremor
Propranolol and primidone
Where does extradural hematoma take place
Between the two layers of dura called periosteal and meningeal layer, causing trauma to middle meningeal artery/Vein.
Lucid interval is associated with
Extradural hematoma
Cn3 palsy, coma, after a head injury
extradural hematoma
CT finding of a Extradural hematoma
Lens shaped; does not cross fissures but crosses falx cerebrii
management of extradural hematoma
Craniotoma and evacuation of the clot
Bridging veins bleeding causes
Subdural hematoma
Subdural hematoma location
between arachnoid and dura
Crescent shaped not limited by suture lines; causing mass effect, hyperdense on CT
Acute subdural hematoma
Management of acute and chronic subdural hematoma
Acute: Decompressive surgery (raised ICP!)
Chronic: conservative or burr hole decompression
Rupture of saccular aneurysms, and AV malformations lead to what type of bleed
Sub-arachnoid hemorrhage
Berry aneurysms occur at
Post communicating and Internal corotid junction OR Anterior communicating and ACA or Bifurcation of MCA
Adult polycystic kidneys, coarctation of aorta and Ehler-danlos are associated with this cranial bleed
SAH
Management surgical: Clipping
first line imaging in SAH
CT scan - hyperdense basal cisterns, sulci and ventricular system
Confirmation of diagnosis in SAH
Lumbar puncture at 12 hours - Xanthochromia
what is used to decrease the cerebral vasospasms in SAH
Nimodipine
Headache, fever, photophobia, neck stiffness, CN palsy
Meningitis
CSF for bacterial meningitis
CSF pressure: raised Turbid WBC: neutrophilia/ PMN Raised protein Low glucose
TB meningitis CSF
raised CSF pressure , neutrophilia early and later lymphocytes/ Mononucle
Protein raised and low glucose
Viral meningitis CSF
Normal or raised CSF pressure
Raised lymphocytes, mononucleosis
Raised protein - Mild
Normal Glucose
Define Kernig’s Sign
Neck stiff when leg is straightened with hip at 90
Define Brudzinski’s sign
Lifting head leads to lifting of legs
Management of Meningitis
community Benzyl penicillin
<50: Ceftriaxone
>50: ceftriaxone + ampicillin
Viral: Aciclovir
CI to lumbar puncture in meningitis
Thrombocytopenia, unstable - Cardio + resp, coagulation disorder, infection at LP site and neurology such as focal signs
what type of meningitis A, C, B causes most cases
B as there is no vaccine
PNS disease - demyelinating, AI, both motor and sensory; can cause autonomic problems, follows a diarrheal infection; affects lower limbs and ascends upwards over hours to days
Guillian Barre Syndrome
What is Miller-fisher (GBS syndrome)
Opthamoplegia, ataxia and areflexia + GBS signs
Common pathogens associated with GBS
C. Jejuni; CMV and vaccines - rabies
Initial diagnosis of GBS
Lumbar puncture: elevated protein and increased albumin
Gold standard for GBS
EMG and nerve conduction study - slow conduction velocity
Management of GBS
IV plasmapharesis and immunoglobulines
Unilateral headache throbbing in nature, photophobia and phonophobia, headache, prodrome, aura
Migraine
Acute management of migraine
Paracetamol + metoclopramide or domperidone
NSAIDs
Triptans for severe
Prophylaxis of migraine
Topiramate or propanolol
Increased tone, reflexed and extensor plantar response
UMN
Wasting, fasciculations, reduced tone, reduced reflexes, and flexor plantar reflex
LMN
LMN in arms and UMN in legs
ALS - MND
UMN signs only - type of MND
Primary lateral sclerosis
LMN signs only (worst prognosis)
Progressive bulbar palsy- palsy of tongue, jaw, swallowing
EMG of MND
reduced APs and increased amplitude
Improves survival in MND
Riluzole NMDA inhibitor
Multiple plaques of demyelination disseminated in time and space
Multiple Sclerosis
Commonest type of MS
Relapsing and remitting
Dawson’s fingers are associated with
MS - paraventricular veings in brain stem, SC and optic nerves
First symptom in MS
optic neuritis
other signs: opthalmoplegia, urinary incontinence, sensory; Lhermitte’s Sign: shock-like sensation with neck flexion
Uthoff’s phenomenon: Worsening of symptoms with rise in temperature
MS affects what cells
Oligodendrocytes
Diagnosis of MS
MRI T2 or GD-enhancing
LP: IgG oligoclonal bands
Clinical criteria in MS
McDonald criteria
Management of MS
Acute relapse: High dose IV methylprednisolone DMARDs reduces the relapses Immunosuppressants fatigue: amantadine Spasticity- gabapentin or baclofen Gabapentin for visual field oscillation
DMD inheritance
X linked recessive
Gowers sign
pathpneumonic for muscular dystrophy, where arms are needed to get up from ground
Diagnosis of muscular dystrophy
Genetic testing, Raused creatinine kinase, increased Aldolase, LFTs may be increased
Cause of death in DMD
Respiratory failure
post-synaptic disease of NMJ and pre-synaptic disease
Post-synaptic - MG
Pre-synaptic- Lambert-Eaton syndrome, tick paralysis and botulism
Extra-ocular symptoms, bulbar symptoms, face, neck and limb symptoms - weakness, normal reflexes and increased fatigue
MG
Diagnosis of MG
EMG - decreased response, reduced FVC, thymus CT and TFTs
Anti-AChR abs
Treatment of MG
Pyridostigmine, steroids, IV and plasmapharesis in crisis
Antibodies to presynaptic VG calcium channels at NMH, manifestation of Small cell lung cancer, improves with acitivity, absent reflexes
Lambert-eaton
can use aminopyridine
Treating optic neuritis
High dose steroids
Cardinal symptoms of PD
Bradykinesia + resting tremor + rigidity + postural instability
SE of L-dopa
DOPAMINE D: dyskinesia On-off phenomena Psychosis low ABP Mouth dryness Insomnia N/V EDS - day time sleep
young and fit PD treatment
DA agonist + MOA- inhibitor and L dopa
Frail and old PD treatment
L Dopa and MOA inhibitor
Autonomic dysfunction such as hypotension and bladder problems, cerebellar signs and rigidity in PD like patient
Multiple system atrophy also called shy drager
postural instability - falls, speech + dementia and palsy including vertical gaze in PD like patient
Supranuclear palsy
Aphasia, dysarthria, apraxia, rigidity in one limb in PD like patient
Corticobasilar degeneration
Visual hallunication + Dementia in PD
Lewy body dementia
Radicular pain in the dermatomal distribution and LMN weakness at lesion level
Progressive UMN weakness and sensory loss below the lesion
painless bladder retention
Cord compression
Mixed UMN/LMN signs, early constipation and retention, back pain, sacral area and ED
Conud medullaris
Saddle anesthesia, back pain, radicular pain down the legs, bilateral flaccid, areflexic lower limb weakness, poor anal tone and incontinence, retention of feces and urine
Cauda equina syndrome
Gold standard for Cauda equina investigation
Spine MRI
Management of cauda equina
steroids, decompression
Wet, instability/wobbly and whacky/ demented
Normal pressure hydrocephalus