Rheumatology Flashcards
Contraindication NSAIDS
- chronic kidney disease
- hepatic disease
- peptic ulcer
- adverse drug reaction
Auto Antibody - Rheumatoid Arthritis
- RF intial test ( 70%)
- Anti CCP- conformation (more sensitive and specific )
Auto Antibody - SLE
Ana - intial
Anti Ds DNA - confirming
Anti Smith - confirming
Synovial Fluid Analysis
Rheumatoid Arthritis S/S
- Pain ( decrease during the day)
- Morning stiffness ( >1h)
- Swelling
- Systemic: Fatiquw, weigth loss, Flu like symptomes, Musscle ache weakness
RA - Diagnostic criteria
- Family history of inflammatory arthritis
- Symptoms duration of over six weeks
- Early morning stiffness over an hour
- Arthritis in more than three regions
- Swelling in five or more joins
- Symmetry
- presence of Rheumatoid nodules
- Rheumatoid factor positive
- Raised inflammatory markers in absence of infection
- Anti-CCP positive
- Bony erosions on radiographs of hands and feet uncommon for early diseases
- Strong cardiovascular risk factor
RA- most affected joints
- Metacarpophalangeal (MCP) joints
- Proximal interphalangeal (PIP) joints
- Wrist
- Metatarsophalangeal (MTP) joints (in the foot)
- ankle, knee(mc), shoulder, hip, cervical spine
Symmetrical
Joints : tenderness synovial thickening m
RA - extra articular manifestation
- aggressive treatment
- 40%
- Pulmonary fibrosis
- Felty’s syndrome (a triad of rheumatoid arthritis, neutropenia and splenomegaly)
- Sjögren’s syndrome (with dry eyes and dry mouth)
- Anaemia of chronic disease
- Cardiovascular disease (Pericarditis, Myocarditis, Endocarditis, congestive heart failure)
- Eye manifestations ( keratoconjunctivitis, Scleritis, Ulcerative keratitis)
- Rheumatoid nodules (firm, painless lumps under the skin, typically on the elbows and fingers)
- Lymphadenopathy
- Carpel tunnel syndrome, osteopenia, Osteoporosis
- Renal (Amyloidosis, Glomerolunephritis)
- Bronchiolitis obliterans (small airway destruction and airflow obstruction in the lungs)
- Caplan syndrome (pulmonary nodules in patients with rheumatoid arthritis exposed to coal, silica or asbestos dust)
MC CAUSE OF DEATH : cardiovasular disease
RA - Handsigns
- Z-shaped deformity to the thumb
- Swan neck deformity (hyperextended PIP and flexed DIP)
- Boutonniere deformity (hyperextended DIP and flexed PIP)
- Ulnar deviation of the fingers at the MCP joints
MCP not affected in OA
RA - Atlantoaxial Subluxation
- can cause spinal cord compression
- check pre operative
RA - Dx
- Rheumatoid factor
- Anti-CCP antibodies
- Inflammatory markers, such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR)
- X-rays of the hands and feet for bone changes
- Ultrasound or MRI can be used to detect synovitis (useful when clinical findings are unclear)
RA - Xray changes
- Periarticular osteopenia
- Boney erosions
- Soft tissue swelling
- Joint destruction and deformity (in more advanced disease)
- subluxation
RA - Treatment
- Monotherapy with methotrexate, leflunomide or sulfasalazine
- Combination treatment with multiple cDMARDs
- Biologic therapies (usually alongside methotrexate)
- Lifstyle ( exercise, smoking cessation)
DMARDS
- Hydroxychloroquine may be used in mild disease and palindromic rheumatism. “mildest” DMARD.
- Other cDMARDs : azathioprine, ciclosporin, cyclophosphamide and mycophenolate.
- NSAIDs are helpful for pain relief but have associated risks and side effects. ( no paracetamol)
Biological Therapies
- Tumour necrosis factor (TNF) inhibitors (e.g., adalimumab, infliximab, etanercept, golimumab and certolizumab)
- Anti-CD20 on B cells (e.g., rituximab)
- Anti-interleukin-6 inhibitors (e.g., sarilumab and tocilizumab)
- JAK inhibitors (e.g., upadacitinib, tofacitinib and baricitinib)
- T-cell co-stimulation inhibitors (e.g., abatacept)
RA and Pregancy
- sympt can improve or flare
- Hydroxychlorochine or sulfosalazine( plus folic acid) safest
- Tetratogenic Methotrexate and leflunamid
Metotrexat
- Mouth ulcer
- liver toxidity
- bone marrow supression and leukopenia
- Tetratogenic
- interferes with folat metabolism( folic acid 5mg/week)
- Immunsuppresion
- bone marrow suppression ( Macrocystic anaemia)
Sulfosalazine
- Orange urine
- reversible male infertility ( stop before family planing)
- bone marrow supression
Hydroxychloroquin
- Retinal toxicity (reduced visual acuity (macular toxicity)
- Blue-grey skin pigmentation
- Hair lightening (bleaching)
Azathioprim
- thioprin methyltransferase test before medication
- more likely to get bone marrow supression
Feltys syndrom
- complication of longstanding RA
-
3 condtions
1. RA
2. splenomegaly
3. abnormal white blood cell count
Felty sydrom - featutres
- fatigue
- serious infection
- fever
- weight loss
- discoloured patches of the skin
Treatment same as RA
Unique SE for Antirheumatica
- Methotrexate: Bone marrow suppression and leukopenia, and highly teratogenic
- Leflunomide: Hypertension and peripheral neuropathy
- Sulfasalazine: Orange urine and male infertility (reduces sperm count)
- Hydroxychloroquine: Retinal toxicity, blue-grey skin pigmentation and hair bleaching
- Anti-TNF medications: Reactivation of tuberculosis
- Rituximab: Night sweats and thrombocytopenia
Osteoarthritis - RF
- obesity, age
- occupation
- trauma
- female
- family history.
Osteoarthritis - commenly affected joints
- Hips
- Knees
- Distal interphalangeal (DIP) joints in the hands
- Carpometacarpal (CMC) joint at the base of the thumb
- Lumbar spine
- Cervical spine (cervical spondylosis)
Osteoarthritis - Xray Changes
L- loss of joint space
O- Osteophytes
S- subarticular sclerosis
S -subchondral cyst
Osteoarthrits - Presentation
- Bulky, bony enlargement of the joint
- Restricted range of motion
- Crepitus on movement
- Effusions (fluid) around the joint
- symmetrical
- Pain ( worse with activity better at rest)
- Deformity, Instabiltiy an d reduced function
- morning stiffness( <1/2hour)
Osteoarthritis - Sign in hands
- Heberden’s nodes (DIP)
- Bouchard’s nodes (PIP)
- Squaring at the base of the thumb (CMC)
- Weak grip
- Reduced range of motion
Osteoarthritis - Management
- Nsaids
- intraarticular steroids
- Joint replacement
NSAIDS - Adverse Effects
- Gastrointestinal ( gastritis, peptic ulcer)
- Renal (AKI, Chronic kidney disease)
- cardiovascular ( hypertension, heart failure, MI, Stroke)
- excerbating asthma