rheumatology Flashcards
signs of rheumatoid arthritis
limited ROM ulnar deviation swan neck boutonniere z thumb rheumatoid nodules
presentation of RA
red hot swollen painful joint with EMS
normally affects symmetrically, the small joints before large
extraarticular
scleritis, episcleritis, sjogren’s
pulmonary effusions, pulmonary fibrosis, pericarditis
splenomegaly, anaemia, amylodosis
investigations for RA
CRP, ESR
RF, anti CCP
x ray (JS narrowing, soft tissue swelling, erosions, periarticular osteopenia)
US for synovitis
management of RA
1st line: methotrexate + infliximab combination therapy
2nd line: triple therapy (methotrexate, hydrochloroquine, sulfasalazine)
adjucts: NSAIDs, corticosteroids
side effects of methotrexate
GI upset, alopecia, risk of infection, nephrotoxic, hepatotoxic
side effects of infliximab
flu like symptoms immune deficiency (risk of legionella and listeria infection)
cause of gout
primary: lesch nyhan syndrome
secondary: renal fairue, thiazide diuretic use, high intake, luekemia
presentation of gout
most commonly the MTP, knee
severe pain, sudden onset
red, hot swollen
investigations for gout
aspirate - negatively birefringent needle shape crystals
serum urate
U&Es
rule out other causes: ANA, RF, antiCCP, x ray
causes of psuedogout
hypo/hyper thyroidism
hyperparathyroidism
hemochromatosis
renal impairment
presentation of pseudogout
commonly knees, wrists, elbows
acute, red, swollen painful joint
investigations for pseudogout
aspirate - positively birefringent rhomboid shaped crystals bone profile (vit D, Ca, PTH)
management of gout
acute: NSAIDs or colchicine (also corticosteroids, anti IL1 biologics)
chronic: lifestyle changes, allopurinol
management of pseudogout
NSAIDs
colchicine
intraarticular dexamethasone
causes of reactive arthritis
virus: rubella, EBV, mumps
GI: salmonella, shigella, campylobacter
chlamydia trachomatis
presentation of reactive arthritis
usually acute symmetrical lower limb
classic trial: arthritis, conjunctivitis, urethritis
keratoderma blennorrhagia
following a diarrhoeal/urinary infection
can cause cardiac complications: aortic regurgitation, aortitis
investigations for reactive arthritis
CRP, ESR, WCC
urinary NAAT, rectal/throat swabs
stool cultures
rule out other causes: RF, ANA, joint aspirate, XRay
management of reactive arthritis
NSAIDs
intraarticular steroids
no evidence for treating underlying infection
self limiting but can be up to 6 months
presentation of inflammatory back pain
age < 40 insidious onset improves with exercise no improvement with rest pain > 3 months
presentation of ankylosing spondylitis
inflammatory back pain uveitis, enthesitis loss of lumbar lordosis reduced flexion (schobers test <5cm) associated with IBD and psoriasis
investigations for ankylosing spondylitis
HLA B27 positive
x ray
spine - vertebral squaring, bamboo spine
pelvis - sacroiliitis