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Samenvatting VSV1

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In dit document een samenvatting van alle onderwerpen besproken bij VSV1.

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Uploaded on
April 9, 2023
Number of pages
35
Written in
2022/2023
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Inhoudsopgave
Casus 1.......................................................................................................................................................... 3
Begrippen.............................................................................................................................................................3
Myasthenia gravis................................................................................................................................................3
Lambert Eaton Syndroom.....................................................................................................................................5
Chronic Progressive External Opthalmoplegia (CPEO).........................................................................................5
Kearns Sayre Daroff syndroom........................................................................................................................5
Lambert Eaton vs Myasthenia Gravis..................................................................................................................5
CPEO vs Kearns Sayre vs Mystashenia Gravis......................................................................................................6
NIII parese............................................................................................................................................................6
Horner..................................................................................................................................................................7

Casus 2.......................................................................................................................................................... 8
Begrippen.............................................................................................................................................................8
Arteriën vs venen..................................................................................................................................................8
Cerebrovasculair accident (CVA)..........................................................................................................................9
Central Retinal Arterial Occlusion (CRAO)............................................................................................................9
Central Retinal Vein Occlusion (CRVO).................................................................................................................9
NVI parese..........................................................................................................................................................10
Age related distance esotropie..........................................................................................................................11
Divergentie paralyse..........................................................................................................................................11
Esotropia Associated with High Myopia (EAHM)...............................................................................................11

Casus 3........................................................................................................................................................ 12
Begrippen...........................................................................................................................................................12
Anatomie en fysiologie schildklier......................................................................................................................12
Hyperthyreoïdie vs hypothyreoïdie....................................................................................................................13
Mechanisch vs neuorgeen..................................................................................................................................13
Graves disease/Graves orbitopathie..................................................................................................................14
A-patroon...........................................................................................................................................................15
Orbitale myositis................................................................................................................................................15
Orbitale myositis vs Graves orbitopathie...........................................................................................................15
Orbitale cellulitis.................................................................................................................................................16

Casus 4........................................................................................................................................................ 17
Begrippen...........................................................................................................................................................17
Anatomie schedel...............................................................................................................................................17
Werking oogspieren...........................................................................................................................................19
Herpes zoster......................................................................................................................................................20

, Tolosa Hunt Syndroom.......................................................................................................................................20
Blow-out fractuur...............................................................................................................................................20
Verworven brown syndroom..............................................................................................................................21
Trapped superior oblique tendon.......................................................................................................................22
Brown syndroom vs trapped superior oblique tendon.......................................................................................22
Congenitale NIV parese......................................................................................................................................22
Orbita fractuur vs congenitale NIV parese.........................................................................................................23

Casus 5........................................................................................................................................................ 24
Begrippen...........................................................................................................................................................24
Anatomie bij pupilreacties.................................................................................................................................24
Fysiologische anisocorie.....................................................................................................................................24
Horner................................................................................................................................................................24
NIII parese..........................................................................................................................................................25
Pharmacologisch blok........................................................................................................................................26
Holmes adie........................................................................................................................................................26
Argyll robertson..................................................................................................................................................26
Double elevator palsy.........................................................................................................................................27
Guillan-Barré syndroom.....................................................................................................................................27

Casus 6........................................................................................................................................................ 28
Begrippen...........................................................................................................................................................28
Migraine.............................................................................................................................................................28
Parkinson............................................................................................................................................................29
Ziekte van Ménière.............................................................................................................................................29
Fixatie disparatie................................................................................................................................................30
Spasme Near Reflex (SNR)..................................................................................................................................31
Myokemie m. Obliquus Superior........................................................................................................................31
Oculaire neuromyotonie.....................................................................................................................................32
Cyclische NIII parese...........................................................................................................................................32

Casus 7........................................................................................................................................................ 33
Verworven NIV parese........................................................................................................................................33
Intermitterende exotropie..................................................................................................................................33
True distance exotropie.................................................................................................................................34
Simulated distance exotropia........................................................................................................................34
Niet specifieke exotropie...............................................................................................................................34
Simulated near exotropie..............................................................................................................................34
True near exotropie.......................................................................................................................................34
Gedecompenseerde exoforie..............................................................................................................................34

,Casus 1
Begrippen
Aberrante regeneratie -> andere hersenzenuwen nemen innervatie over wat zorgt voor
simultane regeneratie.
- Is alleen mogelijk bij een NIII en wordt dan overgenomen door de NIV en NVI.
- Ontstaat alleen bij een NIII parese veroorzaakt door een trauma of een RIP.
- 4 soorten
o Elevatie van het bovenste ooglid bij kijken naar beneden en bij proberen te
kijken in adductie.
o Adductie bij proberen bovenblik en soms bij proberen benedenblik
o Retractie van de oogbol in boven en benedenblik
o Constrictie van de pupil bij proberen adductie.

Myasthenia gravis
Auto-immuunziekte omdat het lichaam antistoffen aanmaakt die op ACh receporen gaan
zitten. Hierdoor kan de ACh niet binden aan de receptoren.

3 soorten antilichamen
- ACh antilichamen
- MUSK
- LRP 4

Wordt geassocieerd met een tumor van de Thymus.

Algemene kenmerken
- Spier moeheid
- Klachten worden erger gedurende de dag
- Klachten erger bij ziekte
- Klachten erger bij inspannen en worden minder bij rust
- Moeite met slikken
- Zwakte van de gezichtsspieren
- Moeheid van kaak
- Spraakproblemen
Oculaire kenmerken
- Diplopie
- Ptosis
- Cogan’s lid twitch
- Variabele ptosis
- Afwijkende oogbewegingen
- Retractie bovenste ooglid
- Meestal MRS als eerste aangedaan

, Neonataal – geboren met MG. Baby kan via de navelstreng de antistoffen van de moeder
ontvangen, waardoor de baby enkele dagen tot weken last heeft van MG, vaak weer
hersteld na 6 wk

Congenitaal – zuigelingen, komt niet door de antistoffen

Juveniel – geboorte tot pubertijd, lijkt op volwassen vorm

Volwassen – onder te verdelen in oculaire myasthenia, mild tot moderate generalised
myasthenia, acute fulminating myasthenia, late severe myasthenia

Testen
- Ice pack test
- Slaap test
- Antistoffen test
- EMG
- Prolonged upgaze test (lang naar boven blijven kijken)

Behandeling
- Niet chirurgische behandeling
o Verbetering van de neurotransmissie
o Onderdrukking van het immuunsysteem
o Ptosis-steunen / crutches kunnen worden gebruikt om het bovenste ooglid te
ondersteunen op flexibele draadlussen die op het brilmontuur zijn
gemonteerd.
o Prisma's zijn vaak niet effectief vanwege de variabele afwijking
o Occlusie van één oog kan in sommige gevallen de voorkeur hebben in plaats
van de systemische bijwerkingen van medische behandeling te riskeren.
o Botulinumtoxine speelt een rol bij het bevestigen van binoculair potentieel bij
patiënten voordat ze aan een chirurgische behandeling beginnen.
- Strabismus chirurgie
o Chirurgie is gecontra-indiceerd in het actieve stadium van de ziekte vanwege
de variabiliteit van de afwijking. Zodra de aandoening echter rustig is, kunnen
patiënten baat hebben bij een scheelzienoperatie.
o Chirurgie uitgevoerd onder algemene anesthesie heeft een risico op het
veroorzaken van een myasthenische crisis à daarom moet er ondersteuning
op de intensive care beschikbaar zijn voordat een operatie onder algehele
narcose wordt uitgevoerd.
o Bij volwassen patiënten wordt bij voorkeur onder plaatselijke verdoving
geopereerd, waar mogelijk met verstelbare hechtingen.
- Ptosis chirurgie
o In geval van een aanwezige ptosis kan blepharoptosis chirurgie worden
overwogen.
- Gegeneraliseerde MG
o Medicijnen (pyridostigmine, prednison, immuunglobulines)
o Plasmaferese (“schoonwassen bloed”)
o Verwijderen Thymus

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