Vasculitis Flashcards
definition of vasculitis
inflammation of blood vessels (usually arteries)
aetiology of vasculitis
secondary inflammation from near by inflammatory site
histology (3)
lymphocytes = chronic inflammation
neutrophils = acute inflammation
plasma cells/B cells = chronic inflammation
large vessel vasculitis (2)
takayasu arteritis
giant cell arteritis
medium vessel vasculitis (2)
polyarteritis nodosa
Kawasaki disease
small vessel vasculitis (4)
churg strauss syndrome (eosinophilic granulomatosis with polyangitis (EGPA))
wegners granulomatosis (granulomatosis with polyangitis (GPA))
microscopic polyangitis (MPA)
henoch schnleein purpura (HAP aka IgA vasculitis)
others…
what investigation do you always do if you suspect vasculitis
why
urinalysis
for renal involvement
prognosis of vasculitis
good if treated, fatal if untreated
who does takayasu arteritis occur in
<40 y/o
females
Asians
who does giant cell arteritis present in
> 50 y/o
which other MSK condition is giant cell arteritis associated with
polymyalgia rheumatica (morning stiffness in shoulders/hips)
unilateral temporal headache tender, enlarged, non pulsatile arteries fever jaw claudication (osteoarthritis in TMJ) unilateral hypertension
giant cell arteritis
patient >50 y/o with sudden onset headache
giant cell arteritis
investigations for giant cell arteritis
inflammatory markers - ESR, plasma viscosity, CRP raised
temporal artery biopsy
fundoscopy (dont forget!)
what are you looking for on temporal artery biopsy in giant cell arteritis (4)
thickening of media
infiltration
multinucleated giant cells
inflammation
who does Kawasaki disease affect
<5 y/o
where does Kawasaki disease occur
coronary arteries
polyarteritis nodosa occurs at…
vessel bifurcations (aneurysms develop)
rosary bead sign
polyarteritis nodosa
treatment of giant cell arteritis
steroids, reduce over 2 years;
prednisolone 40mg if no visual symptoms
prednisolone 60-80mg if visual symptoms
aspirin long term
PPI long term
do you treat giant cell arteritis before or after you get the temporal artery biopsy back
before! could be fatal (vision loss)
what happens if giant cell arteritis isnt treated
vision loss
why do you take aspirin long term in giant cell arteritis
reduce ischaemia = reduce optic neuropathy risk
why do you take a PPI long term in giant cell arteritis
you need GI protection bc youre taking aspirin
what type of vasculitis is eosinophilic granulomatosis with polyangitis (EGPA)
small vessel
what is eosinophilic granulomatosis with polyangitis (EGPA) also known as
churg strauss syndrome
late onset asthma/rhinitis mononeuritis multiplex (neuroproblem) oral ulcers nose bleeds cough deafness skin involvement
eosinophilic granulomatosis with polyarteritis (EGPA)
which type of vasculitis is associated with asthma
eosinophilic granulomatosis with polyanteritis (EGPA)
investigations for eosinophilic granulomatosis with polyarteritis (EGPA)
high eosinophil
pANCA
anti-MPO
(same as MPA)
histology of eosinophilic granulomatosis with polyarteritis (EGPA)
eosinophils
what other name is granulomatosis with polyarteritis (GPA) known as
wegners granulomatosis
granulomatosis with polyarteritis (GPA) usually occurs in…
35-55 y/o males
histology of granulomatosis with polyarteritis (GPA) (2)
necrotising granulomatous glomerulonephritis
nucleate giant cells
presentation of granulomatosis with polyarteritis (GPA)
ENT symptoms - oral ulcers, nose bleeds, nasal cartilage collapse (saddle nose), cough, deafness
haemoptysis
investigations in granulomatosis with polyarteritis (GPA)
cANCA positive
anti-PR3 antibody positive
cANCA positive
anti-PR3 positive
granulomatosis with polyarteritis (GPA)
pANCA positive
anti-MPO positive
eosinophilic granulomatosis with polyarteritis (EGPA)
OR
microscopic polyangitis (MPA)
which vasculitis presents with ENT symptoms (not asthma)
granulomatosis with polyangitis (GPA)
which vasculitis present with ENT and asthma
eosinophilic granulomatosis with polyangitis (EGPA)
histology of microscopic polyangitis (MPA)
necrotising glomerulonephritis
investigations for microscopic polyangitis (MPA)
pANCA positive
anti-MPO positive
(same as EGPA)
what is henoch schnlein purpura (HSP) also known as
IgA vasculitis
which vasculitis is IgA mediated
henoch schnlein purpura
which group of people get henoch schnlein purpura
children aged 2-11 (not infants)
which vasculitis presents in kids and follows a URTI (1-3 weeks before)
henoch schnlein purpura
presentation of henoch schnlein purpura (5)
purpuric rash over buttocks and lower limbs
colicky abdo pain
bloody diarrhoea
joint pain
proteinuria/haematuria after recent infection
treatment of ALL small vessel vasculitis (EGPA, GPA, MPA, HSP) (3)
if kidney involvement
IV steroids
IV cyclophosphamide
long term immunosuppression - methotrexate
if kidney involvement - dialysis
what is used to detect ANCAs
immunofluorescence
often the first sign of small vessel vasculitis
why
renal involvement
kidneys v susceptible to damage