Vasculitides Flashcards
Define Vasculitis?
Vasculitis is the inflammation and necrosis of blood vessels
How are Primary Vasculitides classified?
Based on the MAIN VESSEL SIZE affected
What are the different classifications of Vasculitides?
LARGE
MEDIUM
SMALL
What are the Large Vasculitides?
Giant Cell Arteritis
Takayasu’s Aortitis
What are the Medium Vasculitides?
Polyarteritis nodosa
Kawasaki’s disease
What are the small Vasculitides?
Churg-Strauss syndrome Microscopic polyangiitis Wegner's granulomatosis Henoch-Schonlein purpura Mixed essential cryoglobulinaemia (MEC) Relapsing polychondritis
What is the aetiology of Vasculitides?
Suggested autoimmune origin
Immune complex deposition in the walls of blood vessels leads to inflammation
What are the risk factors for Vasculitides?
Hepatitis B - polyarteritis nodosa
Hepatitis C - mixed essential cryoglobulinaemia
pANCA - microscopic polyangiitis + Churg-Strauss
cANCA - Wegner’s granulomatosis
What is the epidemiology of Vasculitides?
RARE
Takayasu’s arteritis is most common in japanese females
What are the presenting symptoms and signs of Vasculitides?
Large vessel Vasculitides have classic clinical patterns based on the vessels affected (e.g. GCA and loss of vision/headache)
Medium and small vessel Vasculitides are characterised by multiorgan involvement and have less specific clincial features
What are the general possible features of ALL Vasculitides?
Fever
Malaise
Night sweats
Weight loss
What are the possible features of ALL Vasculitides on the skin?
Rash
What are the possible features of ALL Vasculitides on the joints?
Arthralgia
Arthritis
What are the possible features of ALL Vasculitides in the GI?
Abdominal pain
Haemorrhage
Diarrhoea
What are the possible features of ALL Vasculitides in the kidneys?
Glomerulonephritis
Renal failure