Artérite à cellule géante Flashcards

1
Q

définition PPR :

A

arthromyalgie inflammatoire des insertion membre : ++ epaule + ceinture pelvienne = bursitre, synovite ténosynovite ….

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2
Q

Def ACG :horton

A

vascularite systémique primitive ++ branche carotide externe (temporal + occipital)

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3
Q

bio : quel element +++ evocateur :

A

CRP >40mg/L
augmentation : phosphatase alcaline + gammaGT + cytolyse

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4
Q

bilan pré-thérapetique : PPR

A

GaJ + ostéodensitométrie + bilan lipidique

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5
Q

TTT PPR :

A

CTC faible dose

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6
Q

signe echo pathognomique de horton :

A

signe du Halo = halo hypoechogène paroi vaisseuax

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7
Q

avec quoi peut on retenir diag sans pruve histo de horton :

A

si signe de halo bilatéral

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8
Q

exam de réfénrec de horton =

A

PET scan

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9
Q

signe histologique de horton à la biospie a temporal :

A

panartérite gigantocellulaire segmentaire + focal
infiltration inflammatoire cellule mononuclée média + intima
destruction limitante interne eletase +/- cellule géante

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10
Q

2 types de complciation de horton à rechercher systématiquement :

A

neurologique : AVC, AIT …
ophtalmo : BAV, diplopie, amaurose,

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11
Q

risque % de cécité bilatéral irréversible

A

1-2%

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12
Q

alternative CTC : pour horton marche aussi pour PPR :

A

inhibiteur Rc IL6 = tocilizumab

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13
Q

CTC dose horton si pas de complication ou si complication :

A

pas de compliccation = CTC forte D 0,7mg/kg prednisone

si complicaiton : CTC forte D 1mg/Kg prednisone

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14
Q

supplémentation de quoi horton :

A

vit D
Ca2+ si approt insuffisant
K+ selon D ctc

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