Neuro Flashcards

1
Q

Seizures Ix

allowed one simple seizure without investigation

A

Bloods: FBC, UandE, cultures, blood glucose

Orifices: LP, urine

X:

ECG

S: MRI??
EEG
PET/SPECT pre surgery??

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2
Q

Seizures MRI indications

A

under 2
focal
no response to tx

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3
Q

Tonic Clonic Management

A

First line: sodium valproate

Second line: lamotrigine or carbamazepine

Valproate:
Teratogenic, so patients need careful advice about contraception
Liver damage and hepatitis
Hair loss
Tremor
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4
Q

Focal Seizures TX

A

One way to remember the treatment is that the choice of medication is the reverse of tonic-clonic seizures:

First line: carbamazepine or lamotrigine
Second line: sodium valproate or levetiracetam

Carbemazepine:
Agranulocytosis
Aplastic anaemia
Induces the P450 system so there are many drug interactions

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5
Q

Generalised seizure definition

A

TLOC >3s, symmetrical, no aura

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6
Q

Focal seizure definition

A

aura, local group, hallucinations, deja vu, flashbacks, autopilot

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7
Q

Absence Seizures tx

A

First line: sodium valproate or ethosuximide

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8
Q

Atonic Seizures tx (Lennox Gastaut??)

A

First line: sodium valproate

Second line: lamotrigine

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9
Q

Myoclonic Seizures

A

First line: sodium valproate

Other options: lamotrigine, levetiracetam or topiramate

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10
Q

Infantile Spasms (West Syndrome)

A

Prednisolone

Vigabatrin

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11
Q

Seizures advice

A

Take showers rather than baths
Be very cautious with swimming unless seizures are well controlled and they are closely supervised
Be cautious with heights
Be cautious with traffic
Be cautious with any heavy, hot or electrical equipment

avoid driving if teen

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12
Q

Tension Headaches tx

A

reassurance, analgesia, regular meals, avoiding dehydration and reducing stress.

VISION CHECK

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13
Q

Migraines tx

A

Rest, fluids and low stimulus environment
Paracetamol
Ibuprofen
Sumatriptan
Antiemetics, such as domperidone (unless contraindicated)

VISION CHECK

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14
Q

Migraine prophylaxis

A

Propranolol (avoid in asthma)
Pizotifen (often causes drowsiness)
Topiramate (girls with child bearing potential need highly effective contraception as it is very teratogenic).

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15
Q

Simple Febrile Convulsions def

A

tonic clonic, less than 15 mins, once in illness

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16
Q

Complex Febrile Convulsions def

A

partial/focal, more than 15 mins, multiple in one illness

need investigations

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17
Q

Febrile convulsion management

A

identify and manage the underlying source of infection and control the fever with simple analgesia such as paracetamol and ibuprofen.

Simple febrile convulsions do not require further investigations and parents can be reassured and educated about the condition. Complex febrile convulsions may need further investigation.

18
Q

Febrile convulsion advice

A

Stay with the child
Put the child in a safe place, for example on a carpeted floor with a pillow under their head
Place them in the recovery position and away from potential sources of injury
Don’t put anything in their mouth
Call an ambulance if the seizure lasts more than 5 minutes

visit their GP at the next available opportunity

19
Q

Anoxic Seizures (reflex/cyanotic) management

A

After excluding other pathology and making a diagnosis, educating and reassuring parents about breath holding spells

iron deficiency anaemia

20
Q

Seizures management - general principles

A

Drugs not for all
Monotherapy first
vagal stimulation?
keto diet (low carb, high fat)

21
Q

Floppy infant central causes

A

Encephalopathy (HIE, trauma, BM) –> CP
Chronic encephalopathy (metabolic inborn errors, hypothyroid)
CTD - ehlers danlos, oi
Hydrocephalus (arachnoid cysts, aqueductal stenosis, chiari malformation, chromosomal abnormalities)

22
Q

Floppy infant peripheral causes

A

SMA
NMJ e.g. myaesthenia
Poliomyelitis
congential myopathies e.g. dmd

23
Q

Floppy infant ix

A

Central:
Bloods - metabolic, tft, u and e, plasma aminos, fatty acids

Urine GAGs

Medical genetics/ chromosomes

CT/MRI

Peripheral:
muscle biopsy
emg
ck and lactate
SMN gene (SMAT1)
24
Q

Signs and symptoms of cerebral palsy

A

Failure to meet milestones
Increased or decreased tone, generally or in specific limbs
Hand preference below 18 months is a key sign to remember for exams
Problems with coordination, speech or walking
Feeding or swallowing problems
Learning difficulties

25
Q

Medications for CP (alongside MDT)

A

Muscle relaxants (e.g. baclofen) for muscle spasticity and contractures
Anti-epileptic drugs for seizures
Glycopyrronium bromide for excessive drooling

26
Q

Gower’s Sign

A

proximal muscle weakness - DMD

using their hands on their legs to help them stand up

X-linked recessive

27
Q

DMD tx

A

MDT

surgical and medical management of complications such as spinal scoliosis and heart failure

Oral steroids have been shown to slow the progression of muscle weakness by as much as two years.

Creatine supplementation can give a slight improvement in muscle strength.

28
Q

Duchennes Muscular Dystrophy

A

dystrophin on the X-chromosome

Boys with Duchennes present around 3 – 5 years with weakness in the muscles around their pelvis.

29
Q

Beckers Muscular Dystrophy

A

dystrophin gene is less severely affected and maintains some of its function

Symptoms only start to appear around 8 – 12 years

30
Q

Myotonic Dystrophy

A

presents in adulthood

Progressive muscle weakness
Prolonged muscle contractions - E.G. can’t release handshake or doorknob
Cataracts
Cardiac arrhythmias

31
Q

Facioscapulohumeral Muscular Dystrophy

A

Facioscapulohumeral muscular dystrophy usually presents in childhood with weakness around the face, progressing to the shoulders and arms

32
Q

Oculopharyngeal Muscular Dystrophy

A

late adulthood

bilateral ptosis, restricted eye movement and swallowing problems

33
Q

Limb-girdle Muscular Dystrophy

A

Limb-girdle muscular dystrophy usually presents in teenage years with progressive weakness around the limb girdles (hips and shoulders).

34
Q

Emery-Dreifuss Muscular Dystrophy

A

Emery-Dreifuss muscular dystrophy usually presents in childhood with contractures, most commonly in the elbows and ankles

35
Q

SMA signs

A

lower motor neurone:

fascinations, reduced muscle bulk, reduced tone, reduced power and reduced or absent reflexes

36
Q

SMA type 1

A

first few months of life, usually progressing to death within 2 years

37
Q

SMA type 2

A

onset within the first 18 months. Most never walk, but survive into adulthood

38
Q

SMA type 3

A

onset after the first year of life. Most walk without support, but subsequently loose that ability. Respiratory muscles are less affected and life expectancy is close to normal

39
Q

SMA type 4

A

onset in the 20s. Most will retain the ability to walk short distances but require a wheelchair for mobility. Everyday tasks can lead to significant fatigue. Respiratory muscles and life expectancy are not affected.

40
Q

SMA tx

A

MDT
Physio
NIV (SMA1 - trachy)
PEG feeding if unsafe swallow