Rheumatoid Arthritis Flashcards
What is the main stucture involved in Rheumatoid Arthritis?
The synovium
What is defined as Early Rheumatoid Arthritis?
Within 2 years of symptom onset
What are the classical clincial features of Rheumatoid Arthritis?
Prolonged Morning stiffness
Involvement of small joints of the hands and feet
Symmetical distribuion
What are the two key auto antibodies in Rheumatoid Arthritis?
Rheumatoid Factor
Anti-CCP
Why is Anti-CCP more useful than Rheumatoid factor?
Anti-CCP is 90-99% specific
What is important to know about Anti - CCP?
Can be present before disease
Co-relates with disease activity
Absence does not exclude disease
What are the Cut offs for the DAS28 scoring system?
< 2.6 remission
- 6-3.2 Low disease
- 2- 5.1 Moderate disease
>5.1 Active disease
What is the main stay treatment for Inflammatory Arhropathies
Analgesia
Steroids
Disease modifiying anti rheumatic drugs
What does Seropositive and Seronegative mean?
Seropositive means there are auto-antibodies in the blood
Seronegative means that there are no auto-antibodies in the blood
What are the categories of Arthrities?
Non- inflammatory
Inflammatory - seropostitive and seronegative
What does seropositive mean?
Auto-antibodies in serum
What is the most common form of arthritis?
Osteoarthritis
What factors contribute to your risk of Osteoarthritis?
Hobbies
Abnormal Joint alignmeant
Previous injuries
What are the typical radiograph findings of a osteoarthritic joint?
Loss of joint space
Osteophytes
Sclerosis
Subchondral cysts
What is Sclerosis ?
Hardening of bone
What is the usual management of oseteoarthritis?
Pain relief
simple analgesia and opiates
Surgery if appropriate
Physiotherapy and weight loss
What are the four groups of inflammatory arthropathies?
Seropositive
Seronegative
Infectious
Crystal deposition disorders
What are some classical feauters of Inflammatory Arthritis?
Joint pain and swelling
Morning stiffness which eases off with movement
Synovitis
Raised inflammatory markers
Extra-articular symptoms
What is the pathogenesis of rheumatoid arthritis?
Auto-immune response initiated against synovium
An infllammatory panus forms which then attacks the articular cartilage leading to joint destruction
How is a diagnosis of Rheumatoid Arthritis made?
combination of :
Clinical presentation
radiograph findings
serological analysis
What joints in the hand are affected by rheumatiod arthritis?
Wrist joint
MCP and PIP
NOT DIP (no synovium)
What can long standing cervial rheumatoid arthritis cause?
Atlanto-axial subluxation resulting in cervical cord compression
What are Rheumatoid Nodules?
They occour in 25% of people with rheumatoid arthritis
What are the two Auto-antibodies measured in rheumatoid arthritis?
Rheumatoid Factor
and
Anti-CCP
Which auto-antibody is more specific in rheumatoid arthritis?
Anti CCP
What perecentage of people with rheumatoid arthritis are Sero-negative?
20%
Other than auto-antibodies, what else might you find in blood tests?
CRP, ESR and Plasma Viscosity is raised.
What is ESR?
Erythromyte sedementation rate
What is the goal in treating rheumatoid arthritis?
Relieve symptoms
Slow down disease progression
What is the “golden window” with regards to rheumatoid arthritis?
DMARDs should be started within 3 months of the onsent of symptoms
What is the first line DMARD for rheumatoid Arthritis?
Methotrexate
Name four DMARDs for use in rheumatoid Arthritis?
Methotrexate
Sulphasalazine
Hydroxycholroquine
Leflunomide
What must you be aware about when prescribing DMARDs?
They can cause bone marrow suppression and immune supression
Regular blood monitoring is a must
What can you use in Rheumatoid arthritis if DMARDs arent working?
Biologics injection
anti-TNF alpha drugs
Name 3 biologics used in rheumatoid Arthritis
Toclizumab
Ritximab
Abatacept
What must you be aware of when using biologics in rheumatoid arthritis?
They cause and inceased risk of infection; especially to TB
What are the cut offs in the DAS 28 score?
< 2.6 : remission
- 7 - 3.1 : low disease activity
- 1 - 5.1 : moderate disease activity
> 5.1 : high disease activity
What must the DAS 28 score be in order to be eligible for biologic therapy?
High disease activity
>5.1
What alternative therapies can be usueful in rheumatoid arthritis?
allied health professionals
Synovectom
Joint replacement
Joint excision
Arthrodesis
Cevical spine stabilisation
What are the categories of Arthrities?
Non- inflammatory
Inflammatory - seropostitive and seronegative
What does seropositive mean?
Auto-antibodies in serum
What is the most common form of arthritis?
Osteoarthritis
What factors contribute to your risk of Osteoarthritis?
Hobbies
Abnormal Joint alignmeant
Previous injuries
What are the typical radiograph findings of a osteoarthritic joint?
Loss of joint space
Osteophytes
Sclerosis
Subchondral cysts
What is Sclerosis ?
Hardening of bone
What is the usual management of oseteoarthritis?
Pain relief
simple analgesia and opiates
Surgery if appropriate
Physiotherapy and weight loss
What are the four groups of inflammatory arthropathies?
Seropositive
Seronegative
Infectious
Crystal deposition disorders
What are some classical feauters of Inflammatory Arthritis?
Joint pain and swelling
Morning stiffness which eases off with movement
Synovitis
Raised inflammatory markers
Extra-articular symptoms
What is the pathogenesis of rheumatoid arthritis?
Auto-immune response initiated against synovium
An infllammatory panus forms which then attacks the articular cartilage leading to joint destruction
How is a diagnosis of Rheumatoid Arthritis made?
combination of :
Clinical presentation
radiograph findings
serological analysis
What joints in the hand are affected by rheumatiod arthritis?
Wrist joint
MCP and PIP
NOT DIP (no synovium)
What can long standing cervial rheumatoid arthritis cause?
Atlanto-axial subluxation resulting in cervical cord compression
What are Rheumatoid Nodules?
They occour in 25% of people with rheumatoid arthritis
What are the two Auto-antibodies measured in rheumatoid arthritis?
Rheumatoid Factor
and
Anti-CCP
Which auto-antibody is more specific in rheumatoid arthritis?
Anti CCP
What perecentage of people with rheumatoid arthritis are Sero-negative?
20%
Other than auto-antibodies, what else might you find in blood tests?
CRP, ESR and Plasma Viscosity is raised.
What is ESR?
Erythromyte sedementation rate
What is the goal in treating rheumatoid arthritis?
Relieve symptoms
Slow down disease progression
What is the “golden window” with regards to rheumatoid arthritis?
DMARDs should be started within 3 months of the onsent of symptoms
What is the first line DMARD for rheumatoid Arthritis?
Methotrexate
Name four DMARDs for use in rheumatoid Arthritis?
Methotrexate
Sulphasalazine
Hydroxycholroquine
Leflunomide
What must you be aware about when prescribing DMARDs?
They can cause bone marrow suppression and immune supression
Regular blood monitoring is a must
What can you use in Rheumatoid arthritis if DMARDs arent working?
Biologics injection
anti-TNF alpha drugs
Name 3 biologics used in rheumatoid Arthritis
Toclizumab
Ritximab
Abatacept
What must you be aware of when using biologics in rheumatoid arthritis?
They cause and inceased risk of infection; especially to TB
What are the cut offs in the DAS 28 score?
< 2.6 : remission
- 7 - 3.1 : low disease activity
- 1 - 5.1 : moderate disease activity
> 5.1 : high disease activity
What must the DAS 28 score be in order to be eligible for biologic therapy?
High disease activity
>5.1
What alternative therapies can be usueful in rheumatoid arthritis?
allied health professionals
Synovectom
Joint replacement
Joint excision
Arthrodesis
Cevical spine stabilisation