10. KFP: Aboriginal and Torres Strait Islander/Rheumatology Flashcards
(157 cards)
Potential complications from rheumatoid arthritis?
- Atherosclerosis
- Osteoporosis
- Depression
- Vasculitis
- Peptic ulcer disease
- Lung disease
- Neuropathy
- Atlanto-axial involvement
What is the definition of remission in rheumatoid arthritis?
- Symptom relief
- Normalisation of inflammatory markers
- Absence of joint swelling
What is typically the drug of choice for conventional synthesis disease-modifying antirheumatic drug for rheumatoid arthritis?
- Methotrexate 10mg weekly on one specified day PLUS
- Folid acid 5 to 10mg weekly (on a different day)
What features on history and examiantion would make you suspect rheumatoid arthritis?
History:
- Joint pain and swelling +/- fever
- Morning stiffness > 30 minutes
- Family history RA
- Systemic flu-like features and fatigue
Exam:
- 3 or more tender and swollen joint areas
- Symmetrical joint involvement in hands and/or feet
- Positive squeeze at MCP/MTP
Initial therapy for rheumatoid arthritis?
Pharmacological:
- Simple analgesics
- Higher doses of omega-3 fatty acid
- NSAIDs/COX-2 inhibitors
- DMARDs
- Corticosteroids
Non-pharmacological:
- Weight control
- Patient education
- Occupational therapy
- Exercise (dynamic, aerobic, taichi)
- Psychosocial support
- Sleep promotion
Referral to rheumatologist
Risk factors for gout?
- Dehydration
- Diet: purine rich substances e.g. meat, seafood, alcohol, fructose-sweetened drinks
- Disorders of high cell turnover e.g. haematological malignancies, severe psoriasis
- Drugs that inhibit renal excretion of uric acid: thiazide diuretics, loop diuretics, cyclosporin
- Comorbidities: hypertension, chronic kidney disease, dyslipidaemia, type 2 diabetes, obesity
What options are there for long term urate lowering therapy in the management of gout?
- Allopurinol
- Febuxostat
- Probenecid
What are the options for gout flare prophylaxis when initiating or titrating urate lowering therapy and how long are they usually required?
- Colchicine 500microg daily or BD PO
- NSAID orally on lower dosing end
- Prednisone 5mg daily PO
Colchicine can be used in conjunction with either NSAID or prednisone. Do not use NSAID and prednisone. Prednisone should be used in consultation with rheumatologist due to side effects.
Duration: 3 to 6 months
What is the hallmark of polymyalgia rheumatica?
- Characterised by bilateral aching and stiffness of the shoulders and hip girdle area caused by low grade synovitis
- Hallmark of the disease: Morning stiffness
- Stiffness tends to improve after a hot shower and with activity
- Occurs almost exclusively in people older than 50 years
Suggestive features for the diagnosis of polymyalgia rheumatica?
Features usually present:
- Age >50yo
- Bilateral shoulder aching
- Elevated ESR +/- CRP
Supportive features:
- Absence of RF and anti-CCP
- Morning stiffness lasting longer than 45 minutes
- Hip-girdle discomfort or limited range of motion
- Absence of involvement of joints other than the hip and shoulder
Management of polymyalgia rheumatica?
- Prednisone 15mg daily PO for 4 weeks then reduce gradually
- Usually needs 12 months of treatment
- Do not reduce dose if there is active disease
Features suggestive of statin-related muscle symptoms?
- Bilateral pain
- Aching or stiffness
- Pain located in large muscle groups
- Onset 4 to 6 weeks after starting or increasing dose of statin
- High dose or high potency statin therapy
- Elevated serum CK that decreases with statin withdrawal
ANA staining pattern - what do they mean/what’s the significance?:
- Homogenous
- Speckled
Nonspecific
ANA staining pattern - what do they mean/what’s the significance?:
- Centromere
- Nucleolar
Systemic sclerosis
Diagnostic criteria for systemic lupus erythematosus?
Four of the eleven criteria are required for classifying a patient as having SLE.
- Malar rash: malar erythema, flat or raised
- Discoid rash: erythematous rasied patches with keratotic scaling and follicular plugging
- Photosensitivity: rash as an unusual reaction to sunlight
- Oral ulcers: oral or nasopharyngeal ulcers, usually painless
- Arthritis: nonerosive arthritis involving two or more peripheral joints with tenderness, swelling or effusion
- Serositis: pleurisy or pericarditis
- Renal features: proteinuria or cellular casts
- Neurological and neuropsychiatric features: seizures or psychosis
- Haematological features: haemolytic anaemia, leucopenia, lymphopenia or thrombocytopenia
- Presence of anti-double stranded DNA antibody, anti-Smith antibody, or antiphospholipid antibodies
- Antinuclear antibody positive: ANA positive in the absence of drugs known to cause drug-induced lupus
Differentials for non-inflammatory causes of arthralgia and myalgia
- Fibromyalgia
- Benign hypermobility syndrome
- Osteoarthritis
- Hypothyroidism
- Osteomalacia
- Multiple myeloma
Differentials for inflammatory causes of arthralgia and myalgia
- Polymyalgia rheumatica
- Giant cell arteritis
- Systemic lupus erythematosus
- Sjogren syndrome
- Polymyositis
What is Sjogren’s syndrome?
- Chronic autoimmune disease associated with lymphoid infiltration of the exocrine glands, particularly the salivary and lacrimal glands, leading to secretory gland dysfunction and usually severe sicca symptoms
- In severe cases, dryness can cause salivary gland enlargement and calculus formation, and can affect the trachea causing dry cough and/or hoarse voice
Features of Sjogren’s syndrome?
- Can be primary or secondary (when in association with rheumatoid arthritis or another connective tissue disease e.g. SLE or systemic sclerosis)
- Glandular hypofunction
- Fatigue
- Arthralgia
- Nonerosive arthritis
- Raynaud phenomenon
Diagnosis of Sjogren’s syndrome?
- Significant and persistent picca symptoms (e.g. severe dry eyes needing ocular lubricants several times a day)
- Associated polyclonal hypergammaglobulinaemia
- Positive antinuclear antibody
- Presence of antibodies to Ro (SS-A) and La (SS-B)
Management of common clinical features of inflammatory connective tissue diseases?:
- Sicca symptoms
- Wear sunglasses outdoors to avoid wind-drying effects on the eyes
- Avoid dry and heated air, cigarette smoke, anticholinergic drugs (e.g. TCAs, antiparkinsonian drugs)
- Ensure adequate oral hydration and good dental hygiene to prevent dental caries
- Dry eyes: lubricant drops, gels, ciclosporin drops to improve tear flow
- Dry mouth: hydration, good dental hygiene and regular exams, topical remineralising agents to prevent tooth decay, artificial oral lubricants, products that stimulate saliva e.g. lozenges or gum
What’s the diagnosis?
urethritis + conjunctivitis +/- iritis + arthritis?
Reactive arthritis
When does reactive arthritis tend to appear?
1-3 weeks after the initial infection
What infections can cause reactive arthritis?
- Genitourinary: chlamydia trachomatis
- GI: Salmonella, shigella, yersinia, campylobacter