CNS immune mediated demyelinating diseases Predicting MS ...€¦ · CNS immune mediated...
Transcript of CNS immune mediated demyelinating diseases Predicting MS ...€¦ · CNS immune mediated...
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CNS immune mediated demyelinating diseases
Predicting MS
Coriene Catsman-Berrevoets, paediatric neurologist
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Case 1
14 year old girl
No medical history
Progressive loss of vison of the left eye since 3 days
Left eye hurts when moving
Neurological examination:
Vision 1.0/ 0.2
No other abnormalities
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Case 1
Natasja 14 years old
No medical history
Progressive loss of vison of the left eye since 3 days
Left eye hurts when moving
Neurological examination:
Vision 1.0/ 0.2
Left papil is abnormal
No other abnormalities
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Clinically isolated syndrome (CIS)
- first demyelinating episode with presumed inflammatory cause
- may be monofocal or polyfocal
Optic nerve: neuritis optica (usually unilateral)
Hemisphere: for example hemiparesis, hemi-sensory disorder
Brainstem: for example eye movement disorder
Cerebellum: for example (hemi) ataxia
Myelum: paralysis legs, bladder dysfunction
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Question
which statement is correct
A: The papillary edema is a contraindication for a spinal fluid tap
B: In children with MS oligoclonal bands often occur in serum
C: In children with MS neuritis optica is almost always bilateral
D: The chance that Natasja develops MS is > 80%
E: The chance that Natasja develops MS is < 50%
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Multiple Sclerosis
MS
Symptoms occur in episodes named Schubs or Relapses
May last for hours to days
Typical MRI abnormalities
CSF: raised IgG index and oligoclonal bands present
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Clinically isolated syndrome (CIS)
- first demyelinating episode with presumed inflammatory cause
- maybe monofocal or polyfocal
MRI lesions are:
* well demarcated
* discrete and situated mainly in the white matter
* hypointense white matter lesions may be present
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Multiple Sclerosis diagnostic criteria
1. Dissemination in place
2. Dissemination in time
Clinically
symptoms from lesions in 2 different neuroanatomical systems
MRI
A. neurological symptoms in 1 neuroanatomical system AND
fulfilling specific MRI criteria
B. One neurological episode AND new lesions on 2e MRI
3. No other diagnosis
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MS in children is a difficult diagnosis
Signs and symptoms are not always indicated by the child
Symptoms often disappear spontaneously
Parents do not always seek medical advice in case of subtle symptoms
Rare disease with extensive differential diagnosis
Symptoms and MRI abnormalities are often less defined than in adults
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MS in children
First episode before age 16: 2,7- 4,4 % of MS patients
First episode before age 10: 0,2- 1,6% of MS patients
Mean onset 12-13 years
M : F ratio = 1 : 1.2-1.5
In adults M : F ratio = 1 : 3
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Influence of puberty on paediatric MS more severe in girls
Boiko, A. et al. Neurology 2002;59:1006-1010
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Symptoms of 1st episode of MS may differ from adults
Often more severe
Encephalopathy may be present
MRI at onset often ADEM-like abnormalities
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Willem, 1 year and 5 months: will he develop MS??
Diagnosis ADEM.
Treatment: corticosteroids
5 years follow-up
No further events
Normal development
No residual deficits
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Question
Which statement on ADEM is correct
A: The chance to develop MS after ADEM is < 5%
B: The chance to develop MS after ADEM is > 5%
C: ADEM is associated with cambylobacter infection
D: ADEM more frequently occurs in girls
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MS ADEM
Initial diagnosis ADEM: 21-29% develops MS !
Mikaeloff et al. 2004, Neuteboom et al 2009
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A second ADEM event after ADEM
After ADEM a second event compatible with a diagnosis of ADEM
may occur
Dissemination in place:
Dissemination time:
Diagnosis MS? = recurrent or multiphasic ADEM
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Course of MS in children is slower than in adults
Simone et al. Neurology 2002;59: 1922- 1928
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Early onset MS = a severe disease
- Relapse frequency 1-1.9 relapses /year in the first few disease years
- Physical disability at relatively young age
- 30% of children and adolescents perform below age-expected levels
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Decursus early onset MS
Early onset MS
Adult onset MS
Time to EDSS 6.0
Time to EDSS 6.0
Protracted course
Disability at relatively young age
Boiko et al. Neurology 2002
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Early diagnosis is important to start immune modulating
treatment as young as possible!
Diagnosis MS
Time
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Is this Clinically Isolated Syndrome the first episode of MS?
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2012: MRI criteria for childhood MS
1. Dissemination in space (DIS)
- 1 or more juxtacortical lesion
- 1 or more periventriculair lesion
- 1 or more infratentorial lesion
- 1 or more s[inal lesion
2. Dissemination in time (DIT) (only if >11 years)
- on 1st MRI non symptomatic GADO enhancing lesion
- new lesion T2 or GAD+ lesion on 2e MRI
3. ADEM does not count as first event
Sadaka et al. Ann. Neurol. 2012;72:211-223.
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2012 MRI criteria voor children
Time to diagnosis MS: CDMS 10m, 2007: 8.5m, 2012: 5m.
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2011: Verhey criteria for prediction that a 1st Acute
Demyelinating Syndrome develops into MS
Dutch cohort Canadian cohort
Sensitivity: 91% 84%
Specificity: 78% 93%
Positive Predictive Value: 61%
Negative Predictive Value: 96%
- Minimal 1 T2 or flair periventricular lesion
AND
- Minimal 1 T1 hypo-intense lesion
Verhey et al. Lancet Neurology 2011; 10: 1065-1073.
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ErasMS
ERASMUS Paediatric MS team Rinze Neuteboom Coriene Catsman Femke Aarsen Danielle van Pelt Immy Ketelslegers Sarita van den Berg Rogier Hintzen