Gout, SLE, arthritis, etc Flashcards
Gout epidemiology
middle aged and elderly men, post-menopausal women
deposition of uric acid crystals in joints and connective tissue due to overproduction or underexcretion of uric acid
Gout
rapid onset, pain peaks w/in 8-12 hours.
Pain, redness, and swelling, usually in smaller lower extremity joints
Often recurrent
Gout
Stage 1 of Gout is?
acute gouty arthritis, triggered by acute change in uric acid
can resolves on its own w/t tx
Stage 2 of gout is? (3)
“intercritical gout”
intermittent attacks, same triggers
deposits in soft tissues as well
Stage 3 of Gout is?
chronic recurrent and tophaceous gout
Gout triggers (2+ and expand)
EtOH use
High purine consumption: organ meats, anchovies, mushrooms, spinach, asparagus, cauliflower, beans, seafood, peas
labs for gout? (4)
arthrocentesis, microscopic analysis
increased serum uric acid level
24h urinary uric acid secretion
radiography- joint erosions
Gout findings on mcroscopic analysis?
monosodium urate crystals that are negatively bifringent
Gout: 24h urine uric acid results?
> 800 mg/dL for overproducers
< 700 mg/dL for underexcreters
Gout tx (4)
- NSAIDs
- intra-articular steroids, oral steroids
- Colchicine- prophylaxis
- Uricosuric agents
Gout meds for underexcreters (2)
Probenecid 250mg BID
Allopurinol (Zyloprim) 100mg daily
Most common gout med?
Allopurinol (Zyloprim)
Gout meds for overproducers (2)
Febuxostat- Xanthine Oxidase inhibitor
Allopurinol
acute onset of erythema, pain, & swelling in the larger joints: knees, wrists, MCPs, hips. Attacks may be self-limiting
Calcium pyrophosphate dihydrate deposition disease (CPPD)
CPPD etiology
unknown
can be increased by trauma
CPPD labs and imaging findings (3)
Radiographic changes- Evidence of Ca2+ crystals- punctate and linear radiodensities in joint areas
Elevated neutrophils on CBC
Microscopic study
CPPD findings on microscopic study
positively birefringent rhomboid-shaped crystals
CPPD tx (3)
- NSAIDs
- colchicine 0.6 mg BID during acute inflammation
- removal of crystals by joint aspiration, intra-articular steroid injection
autoantibodies to nuclear & cytoplasmic antigens destroy cells –> tissue damage
Systemic Lupus Erythematous
fever, fatigue, joint pain, rash, weight loss, anemia, Raynaud’s
photosensitivity, polyarthritis, renal disorders, heme disorders, mucosal ulcers, serositis, neuro disorders
SLE
Raynaud’s phenomenon is?
Triphasic circulatory response in hands
SLE labs are? (7)
Sed rate Antinuclear antibody (ANA) (+) Anti DNA antibody (+) anti-Smit antibody (+) anti-phospholipid antibody urinalysis for renal damage liver tests
SLE tx? (5)
decrease sun exposure NSAIDs (Naproxen, Celecoxib) Antimalarials (Hydroxychloroquinine, Plaquenil) Corticosteroids Immunosuppressive drugs for severe cases
pt on medication w/ arthralgia, myalgia, malaise, fever, rash, serositis
Drug Induced SLE
labs for drug induced SLE (2)
+ antihistone antibodies
- anti-dsDNA & anti-Smith
drug induced SLE tx
discontinue drug, consider steroids
“Sicca syndromes”? and what do they indicate?
xerostomia, dry eyes, recurrent parotiditis
Sjögren’s syndrome
dry eyes/mouth, recurrent parotiditis, Raynaud’s phenomenon, myalgia, pulmonary disease, anemia, leukopenia, vasculitis, GI disease, arthritis
Sjögren’s syndrome
Sjogren’s labs? (4)
+ RF, + ANA
Anti-Ro/SS-A, Anti-LA/SS-B (Primary Sjogrens)
Anti-SS-C (Sjogrens related to SLE/RA)
Schirmer’s test for tear production
Sjogren’s tx? (3)
saliva & tear replacement
NSAIDs for arthralgias
steroids/immunosuppressants for severe cases
diffuse fibrosis of the skin & internal organs
Systemic Sclerosis/Scleroderma
overall tightening and thickening of tissues, narrowing of the small vessels
Scleroderma
CREST syndrome:
Calcinosis cutis Raynaud's phenomenon Esophageal dysmotility Sclerodactyly Telangiectasias
Limited cutaneous scleroderma symptoms?
CREST syndrome
CREST + GI tract (weight loss), lungs (pulmonary fibrosis, pulm. HTN), renal failure, myocardial fibrosis
Diffuse cutaneous scleroderma
polyarthralgias, Raynaud’s phenomenon, pigmentation changes, dysphagia, respiratory symptoms, cardiac symptoms, renal crisis
Scleroderma
Labs for scleroderma
(+) ANA
Anti-centromere antibodies (ACA)
anti-SCL-70 (Scleroderma antibody)
Scleroderma tx (3)
Symptomatic:
Raynaud’s- Ca2+ channel blockers (Nifedipine)
Esophageal disease (H2 blockers, PPIs, smaller meals)
Inhibitors for renal disease
arthritis that occurs following an infection
Reactive arthritis
reactive arthritis etiology
GI or GU organisms- Chlamydia is the most common
Reiter’s triad
postinfectious arthritis
urethritis
conjunctivitis
Reiter’s trad, prior sxs of diarrhea or urethritis, asymmetric knee swelling, arthritis of hands, mucosal ulcers,nail changes, genital lesions, lesions on bottom of foot
Reactive arthritis
lesions on bottom of foot w/ reactive arthritis
keratoderma blennorrhagicum
labs for reactive arthritis (5)
ESR, CRP \+ HLA-B27 Antigen - RF antibody - ACC antibody arthrocentesis on affected joint- r/o other conditions
Reactive Arthritis first line tx (3)
NSAIDs:
Indomethacin 50mg TID-QID
Naproxen 500mg BID-TID
Diclofenac 50 mg TID
Reactive arthritis 2nd and 3rd line tx (2)
- steroids: intra-articular or systemic steroids
3. biologic agents: sulfasalazine, methotrexate, TNF inhibitor
symmetric polyarthritis, morning stiffness > 1hr, pain & swelling at affected joints, synovial hypertrophy
Rheumatoid arthritis
early sites of rheumatoid arthritis (4)
MCP & PIP joints of fingers
IP joints of thumbs
wrists
MTP joints of toes
later findings of rheumatoid arthritis (5)
ulnar deviation of MCP Boutonierre deformity of PIP Swan neck contractures (DIP flexion) rheumatoid nodules decreased ROM at elbow, hip, knee
signs of systemic disease in rheumatoid arthritis (3)
rheumatoid nodules, episcleritis, atlantoaxial subluxation
imaging findings for rheumatoid arthritis (purpose + 4)
Establish baseline of affected joints
soft tissue swelling, osteopenia, decreased joint space, subluxation/dislocations
rheumatoid arthritis labs
ESR, CRP, CBC (anemia in chronic disease)
RF for prognostic value
+ Anti-CCP antibodies
(there are seronegative pts.)
highly specific lab findings for rheumatoid arthritis
+ RF
+ Anti-CCP antibodies
rheumatoid arthritis non-pharm tx
Preventative- exercise, nutrition, smoking cessation
rheumatoid arthritis pharm txs
DMARDs: Methotrexate, sulfasalazine
NSAIDs
glucocorticoids
biologic agents: TNF-a, IL-1, IL-6
epidemiology of Juvenile Idiopathic Arthritis (JIA)
< 16 y/o, M=F
<5 joints involved at first, large joints may be swollen, tender, warm, w/out erytheme, uveitis
Pauciarticular (Oligoarticulr) JIA
lab findings for pauciarticular JIA (2)
+ ANA
- RF
Pauciarticular JIA tx
NSAIDs or intra-articular glucocorticoids
refer to Opthalmology for uveitis
fever, rash, arthritis, LAD in pt <16 y/o
Systemic JIA
lab findings for systemic JIA (4)
elevated ESR, CRP
leukocytosis
anemia
thrombocytosis
Systemic JIA tx
NSAIDs
glucocorticoids & DMARDs for severe disease (high fever, pain)
indications for tx of systemic JIA w/ glucocorticoids and DMARDs
high fever, pain
> 4 affected joints during the 1st 6 mo. of illness, pt <16 y/o
polyarticular JIA
polyarticular JIA epidemiology
peaks 2-5, 10-14 y/o
F>M
indolent polyarthritis in younger children, more rapid onset in adolescents
Flexion contractures & weaknesses, bony erosions & joint destruction
Polyarticular JIA
labs for polyarticular JIA (4)
may or may not have RF
elevated ESR
anemia
+ ANA
polyarticular JIA tx
NSAIDs
DMARDs
Optional: glucocorticoids (systemic/intra-articular), physical therapy
characteristic radiologic finding of rheumatoid arthritis
obliteration of the joint
degeneration of cartilage & bone hypertrophy at articular margins
osteoarthritis
pain exacerbated by activity, helped w/ rest. Morning stiffness >30 min.
Fingers, knee, hip, and spine are affected
Osteoarthritis
Heberden’s nodes affect?
DIPs
Bouchard’s nodes affect?
PIP
Heberden’s nodes, Bouchard’s nodes, 1st MCP, knee osteophytes/crepitus, decreased ROM at joints, hip pain referring to knee
osteoarthritis
in OA, hip pain may refer to
knee
OA of the spine
cervical or lumbar spondylosis
Degenerative Disc Disease
complications of lumbar spondylosis
spinal stenosis, slipping over the disc
OA lab findings
All normal- X-ray more helpful
diagnosis of OA is made how?
presence of typical symptoms
physical exam
normal labs
imaging features
nonpharm OA txs
exercise, weight loss, rest, physical therapy
pharm tx for OA (4)
1st line: Tylenol
NSAIDs
topical NSAID or capsaican
intra-articular glucocorticoids
surgical tx for OA and indication
Failed other Txs
joint replacement, joint resurfacing
widespread chronic musculoskeletal pain. Joint pain, swelling (but not present on exam), paresthetias. Fatigue
Secondary: headache, abd/chest wall/pelvic pain
Fibromyalgia
morning stiffness or tiredness. Decreased attention span. Possible depression/anxiety
Fibromyalgia “fibro fog”
Diagnostic findings for fibromyalgia?
bilateral tender points
diagnosis of fibromyalgia based on?
11/18 tender points- positive, reproducible
nonpharm fibromyalgia tx: (5)
education, treat mood disorders (psych), exercise program, physical therapy, trigger point injection
pharm tx for fibromyalgia: (5)
Tricyclic antidepressant- Amitriptyline
Muscle relaxants: Flexeril
SNRIs: Duloxetine (Cymbalta), Milnacipran (Savella)
Pregabalin (Lyrica), Gabapentin (Neurontin)
SSRIs, NSAIDs, Tramadol (Ultram)