Rheumatology Flashcards
1
Q
Contraindication NSAIDS
A
- chronic kidney disease
- hepatic disease
- peptic ulcer
- adverse drug reaction
2
Q
Auto Antibody - Rheumatoid Arthritis
A
- RF intial test ( 70%)
- Anti CCP- conformation (more sensitive and specific )
3
Q
Auto Antibody - SLE
A
Ana - intial
Anti Ds DNA - confirming
Anti Smith - confirming
4
Q
Synovial Fluid Analysis
A
5
Q
Rheumatoid Arthritis S/S
A
- Pain ( decrease during the day)
- Morning stiffness ( >1h)
- Swelling
- Systemic: Fatiquw, weigth loss, Flu like symptomes, Musscle ache weakness
6
Q
RA - Diagnostic criteria
A
- 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
7
Q
A
8
Q
RA- most affected joints
A
- 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
9
Q
RA - extra articular manifestation
A
- 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
10
Q
RA - Handsigns
A
- 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
11
Q
RA - Atlantoaxial Subluxation
A
- can cause spinal cord compression
- check pre operative
12
Q
RA - Dx
A
- 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)
13
Q
RA - Xray changes
A
- Periarticular osteopenia
- Boney erosions
- Soft tissue swelling
- Joint destruction and deformity (in more advanced disease)
- subluxation
14
Q
RA - Treatment
A
- Monotherapy with methotrexate, leflunomide or sulfasalazine
- Combination treatment with multiple cDMARDs
- Biologic therapies (usually alongside methotrexate)
- Lifstyle ( exercise, smoking cessation)
15
Q
DMARDS
A
- 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)
16
Q
Biological Therapies
A
- 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)
17
Q
RA and Pregancy
A
- sympt can improve or flare
- Hydroxychlorochine or sulfosalazine( plus folic acid) safest
- Tetratogenic Methotrexate and leflunamid
18
Q
Metotrexat
A
- Mouth ulcer
- liver toxidity
- bone marrow supression and leukopenia
- Tetratogenic
- interferes with folat metabolism( folic acid 5mg/week)
- Immunsuppresion
- bone marrow suppression ( Macrocystic anaemia)
19
Q
Sulfosalazine
A
- Orange urine
- reversible male infertility ( stop before family planing)
- bone marrow supression
20
Q
Hydroxychloroquin
A
- Retinal toxicity (reduced visual acuity (macular toxicity)
- Blue-grey skin pigmentation
- Hair lightening (bleaching)
21
Q
Azathioprim
A
- thioprin methyltransferase test before medication
- more likely to get bone marrow supression
22
Q
Feltys syndrom
A
- complication of longstanding RA
-
3 condtions
1. RA
2. splenomegaly
3. abnormal white blood cell count
23
Q
Felty sydrom - featutres
A
- fatigue
- serious infection
- fever
- weight loss
- discoloured patches of the skin
Treatment same as RA
24
Q
Unique SE for Antirheumatica
A
- 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
25
Osteoarthritis - RF
* obesity, age
* occupation
* trauma
* female
* family history.
26
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)
27
Osteoarthritis - Xray Changes
**L**- loss of joint space
**O**- Osteophytes
**S**- subarticular sclerosis
**S** -subchondral cyst
28
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)
29
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
30
Osteoarthritis - Management
* Nsaids
* intraarticular steroids
* Joint replacement
31
NSAIDS - Adverse Effects
* Gastrointestinal ( gastritis, peptic ulcer)
* Renal (AKI, Chronic kidney disease)
* cardiovascular ( hypertension, heart failure, MI, Stroke)
* excerbating asthma
32
SLE Diagnostic
CRP/ESR
ANA ( antinuclear) - intial
Anti DsDNA - confirming
Anti Smith - most specific but not sensitive
Antihistone AB - Drug induced lupus
Congenital level C3 4 low
33
SLE - great pretender
Soap brain MD
**S** sclerositis ( pleuritis, pericarditis)
**0** oral ulcer
**A** Arthritis.(Non deforming -hand feet )
**P** photo sensitivity
**B** blood all low
**R** Renal (proteinuria,glomerulonephritis)
**A** Ana
**I** immunoglobulin (ds dna)
**N** neurological ( psych seizures)
**m** malar rush
**d** discoid rash
Polyarthritis +fatigue +skinlession
Minimal 4 criterias
34
SLE - Treatment
* treat early to avoid unnecessary steroid use
**Mild** : Nsaid for atralgia
**Moderate** skin, joint, serosa - Hydroxychloroquine
* **Severe** kidney involvement - ---- corticosteroids,
- immunsupressive drugs(azathioprine, methotrexate- stop progression
- Cytotoxic drugs ( cyclophosphamid)
35
SLE - Abnormal findings
* Autoantibodies
* Full blood - anaemia of chronic disease, low white cell count and low platelets
* CRP and ESR may be raised with active inflammation
* C3 and C4 levels may be decreased in active disease
* Urinalysis and urine protein:creatinine ratio shows proteinuria in lupus nephritis
* Renal biopsy may be used to investigate for lupus nephritis
36
Antiphospholipid syndrom
* secondary to SLE
* antiphospolipid antibodies ( anticardiolipin, Antibeta 2 glycoprotein, lupus anticoagulant)
* recurrent fetal loss
* recurrend thrombotic episodes
37
Antiphospholipid Syndrom - Mx
**Thrombosis**:
* lifelong anticoagulation ( inr 2.5-3.5)
**recurrent fetal loss**
* aspirin, heparin +/-Steroids
**catastrophic**
* high dose steroid
* anticoagulant, cyclophosphamid , plasmapheresis
38
Secondary Antiphospholipid Syndrome
* **SLE**, other connective tissue diseases, **malignancy**, **drugs** (hydralazine, procainamide, phenytoin, interferon, quinidine),
* **infections** (HIV, hepatitis C, TB, infectious mononucleosis)
39
Drug induced SLE
* Atralgia
* Myalgia
* skin
* no renal or nervous system effected
40
Drug induced SLE - AB
* antihistamin AB
* ANA pos
* Anti DsDNA **neg**
* Anti Ro and Anti smith 5% pos
41
Drug induced SLE - Cause
- Phenytoin
- Chlorpromazin
- Proconamid
- Isonazid
- hydralazin
41
fibromyalgia- Symptoms
– Fatigue and sleep difficulties
– Pain in all 4 Quadrants of the body and the axial skeletal on more or less continuous basis for at least three months.
– At least 11 out of 18 anatomically specific tender joints. A tender joint hurts at the area where the pressure is applied, and there is no referred pain.
– Normal inflammatory markers CRP, ESR etc.
42
Congenital Lupus - S/S
* dermatologic
* Cardiac ( 65% -congenital complete heart block- 18/20 SSW)
* hepatic involvement
* splenic abnormalities
43
Congenital Lupus - AB
* Anti Ro (most likely detected)
* Anti La
* U1 ribonukleid protein
* C4 down
> Transplacental passage
44
Skleroderma
* Autoimmun
* thickening of skin (accumulation of collagen and injuries of small arteries)
* Localised
* Systemic (limited cutaneous, diffuse cutaneous)
45
Scleroderma Trias
Fingerdiscomfort + atralgia+ GERD +( Skin tightness)
46
Localised skleroderma
- does not affect internal organs
- Skin, muscle, joint, bones
- patches on skin mainly trunk (morphea)
- streaks or bands of thick hard skin on arms/legs ( linear scleroderma)
47
Systemic Sclerosis
## Footnote
- Sausage fingers
- tight and shiny skin
- Arrythmias, pericarditis
- bird like facies
48
Limited cutaneous systemic sclerosis - CREST
* **C** calcinosis
* **R** raynaud phaenomen
* **E** Oesophagus dismobility
* **S** Sklerodactyly
* **T** Teleangiectasia
49
Diffuse Cutaneous Systemic Sclerosis
* Cardiovascular problems (e.g., hypertension and coronary artery disease)
* Lung problems (e.g., pulmonary hypertension and pulmonary fibrosis)-Late, mcc of death
* Kidney problems (e.g., scleroderma renal crisis)
50
Systemic sclerosis - Dx
* ESR maybe high
* Anaemia ( normocystic, normochrome)
* ANA ( 90%)
* RF ( 30%)
* Anticentromere Antibodies - specific ( 90% in crest, 5%in diffuse)
* Anti SCL 70 ( Antipoisomerase) - Specific ( just in 20-40% pos)
* Skin biopsy( dermal collagen increast)
51
Systemic sclerosis - MX
* refer to specialist, pat education
* Analgetics and NSAIDs
* Avoid vasospasm ( no smoking, bblocker, ergotamine)
* Raynaud: CCB( nifedipin)
* RR monitoring
* D-penicillamine(DMARD) if significant systemic or cutaneous involvement
52
Polymyositis/Dermatomyositis
* autoimmun conective tissue disorder
* symmetrical
* Inflammation of the muscles/skin
Weakness+joint and muscle pain + violaceous facial rash = dermatomysositis
53
Polymyositis/Dermatomyositis - S/S
* Proximal myopathy
( cant get up from chair/ comb the hair)
* Arthralgia
* Dysphagia (50%)
* Rauynaud
* Associated malignancy: lung and ovarys
54
Dermatomyositis - Skin changes
* **Gottron lesions** (scaly erythematous patches) on the knuckles, elbows and knees
* **Heliotrope rash** (a purple rash on the face and eyelids)
* **Periorbital oedema** (swelling around the eyes)
* **Photosensitive erythematous** rash on the back, shoulders and neck
55
Polymyositis/Dermatomyositis - Diagnosis
* Serum CK and aldolase
* Biopsy ( skin and musle) -**best**
* Emg
* Anti Jo AB ( Polymyosistis)
56
Differential - CK
**Dermatomyosytis/polymyositis**
CK and ESR high
**Polymyalgia Rheumatica**
CK normal and ESR high
**Drug induced myositis** ( statin, steroids)
CK and ESR normal
57
Polymyositis/Dermatomyositis - Treatment
* Cortison
* Immunsuppressent
* cytotoxic
* Iv globulin
* Biological ( infliximab,etaercept)
58
Sjögren
**primary**
* dry eyes ( keratoconjunctivitis sicca)
* dry mouth
**secondary**
* dry eyes ( keratoconjunctivitis sicca)
* dry mouth
* + arthralgia ( RA)
59
Sjögren - S/S
* fatigue
* Sicca
* difficulty swalloing
* salivary gland enlargement
* Xerotrachea (chronic dry cough, hoarsness)
* Dyspareunia
* non erosive Arthritis
* **can transform in non hodgkin** (44xrisk)
*
60
Sjögren- Dx
* Autoantibodies - pos ANA, RO, LA
* Schirmer test
* Sialogram
* Biopsy if parotid gland enlargement ( goldstandard)
61
Sjögren- Mx
- refer
- symptomatic ( eg pilocarpin)
- NSAIDs , hydroxychloroquin, steroid for arthritis
62
Raynaud - primary
* not associated with other diseases
*
63
Classification Vasculitis
**Small vessel**
*NON-ANCA-ASSOCIATED*
* Predominantly cutaneous vasculitis
* Henoch-Schönlein purpura
* Essential cryoglobulinemic vasculitis
*ANCA-ASSOCIATED*
* Wegener's granulomatosis
*Churg-Strauss vasculitis
* Microscopic polyangiitis
**Medium-sized vessel**
* Polyarteritis nodosa
* Kawasaki's disease
**Large vessel**
* Giant Cell Arteritis (Temporal Arteritis)
* Takayasu's
64
Major vasculitides
-polyarteritis nodosa (PN),
-giant cell arteritis (GCA)& polymyalgia rheumatica
-Takayasu arteritis,
-Behcet syndrome,
-Churg-Strauss vasculitis
-Wegener granulomatosis (WG)
65
Polyarthritis nodosa
* necrotising vasculitis
* young/middle aged man
* association - drugabuser, HepB/C, Bcell lymphoma
66
Polyarthritis nodosa - S/S
* fever, malaise, myalgia, weight loss
* migratory arthralgia/polyarthritis
* subcutaneous noduls, skin ulcer
* abdominal pain, rectal bleeding
* kidney impairment
* hypertension
* Cardiac disorders: arrythmia, failure infarction
67
Polyarthritis nodosa- Dx/Mx
* ESR raised, CRP raised
* renal biopsy or affected organ ( best)
MX
* Corticosteroid, immunsuppressants
68
Giant Cell Arthritis
* associated with polymyalgia rheumatica
* sudden vision loss with temporal headache, jaw. claudication
* ESR high (100) , temporal art biopsy
* MX iv Corticosteroid
69
Polymyalgia rheumatica
malaise +painful shoulder girdle +morning stiffness( over 50)
70
Polymyalgia rheumatica
* pain, stiffness- shoulder/pelvic girdle, cervical spine
* symmetrical
* 60 -70a
* weight loss malaise anorexia
71
Polymyalgia rheumatica/temporal arthritis
**non complicated**:
Prednisolone
**Complicated** ( e.g vision loss)
iv methylprednisolone
other: Methotrexate, Azathioprin cortison sparing agent
72
Behçet syndrome
* affects all veins and arteries of all size
* Mediterran, middle east, east asia
* **R** reccurent oran/genital ulcer
* **U** uveitis
* **S** skin damage
* **T** Test Pathergy
73
Behçet syndrome - S/S
- Arthritis (knee)
- ulcer
- Occular sign ( pain, reduced vision, floaters)
-->refer to Ophtalmologist
74
Behçet syndrome- Dx
Dx
- Pathergy Test
- Inflammatory markers
- HLAB51
Mx
corticosteroid
colchicin
Immunsuppressive drugs
75
colchecine - Kidney impairment
no or reduced
76
Allopurinol
* If >1 attack in 12 month
* not in acute attack ( after 6 week)
* Adverse effect: rash, lower in KI
* drug interaction amoxicillin, azathioprin
* dont touch in flare
77
Chronic use of methotrexate can cause following side effects:
1-Hepatotoxicity
2-Folic acid deficiency
3-Myelosuppression with low platelet and white cell count.
4-Interstitial pneumonitis
5-Fatigue
6-Nausea and vomiting
7-Stomatitis or mouth ulcers.
78
Ankylosing Spondylytis - Treatment