Vasculitides - MedEd Flashcards
(38 cards)
Name the classifications of vasculitides
Small vessel
Medium vessel
Large vessel
Two types of large vessel vasculitis
Temporal arteritis
Takayasu’s arteritis
Symptoms of temporal arteritis/GCA
Unilateral headache
Jaw claudication (pain on chewing, maxillary artery affected)
Visual disturbances
Scalp tenderness
PMR symptoms
FLAWS
Define GCA
Granulomatous inflammation of large arteries affecting the external carotid artery, most commonly the temporal artery
Investigations for GCA
High ESR
Temporal artery biopsy - NOT SENSITIVE due to skip lesions
Diagnostic criteria + Management of GCA
Age of onset over 50 years,
new headache
high ESR
Oral pred
MOST APPROPRIATE step for presentation of GCA
Oral pred
What is PMR + symptoms
Inflammatory rheumatological condition of unknown cause, causing:
Bilateral hip and shoulder pain
Morning stiffness
Investigations for PMR + what is normal
Management of PMR
High ESR, CRP
NORMAL CK
Corticosteroids
Takasu’s arteritis + epidemiology
Occlusion and inflammation of AORTA and its main branches
Under 40
Asian
Females
Presentation of Takayasu’s arteritis depending on vessel affected
Subclavian artery affected: Limb claudication - fatigue on exertion Absent pulses Bruits Unequal BP
Carotid artery affected:
Headache, TIA, STROKE
Right coronary artery affected:
Angina
If abdominal arteries affected, mesenteric ischemia
Investigations for Takayasu’s arteritis
High ESR/CRP
CTA/MRA
Two types of medium vessel vasculitides
Polyarteritis nodosa
Kawasaki disease
Where does polyarteritis nodosa affect?
Arterioles, capillaries, venules in:
Kidneys
Abdomen
Skin
Nerves
Risk factors
Hep B infection
Idiopathic
Presentation of polyarteritis nodosa
Renal - hypertension, renal failure, haematuria
Abdo - abdo pain, PR bleeding (mesenteric ischemia, vomiting)
Skin - livedo reticularis (mottled appearance)
Nerves - peripheral neuropathy
Arthraliga
FLAWS
Investigations for polyarteritis nodosa and key signs
CTangiography
MRangiography
ROSARY sign/beaded appearance due to micro aneurysms of the blood vessels
Classification of small vessel vasculitis
ANCA positive and ANCA negative
Types of ANCA positive vasculitides
Churg-Strauss
Wegener
MPA
Types of ANCA negative vasculitides
HPA
Goodpastures
Another name for Wegener’s disease
Granulomatosis polyangiitis
Define granulomatosis with polyangiitis
An autoimmune necrotising granulomatous vasculitis characterised by a triad of organ involvement, including URT, LRT and kidneys.
Presentation of granulomatosis with polyangiitis
URT - rhinitis, epistaxis
LRT - SOB, haemoptysis
Kidney - haematuria. dysuria
Distinct features of GPA on genetic screening/investigations
cANCA
Saddle shaped nose
RBC casts
Cavitating lesions on CXR