Systemic Rheumatic Diseases Flashcards
What does scleroderma cause?
Accumulation of collagen and matrix in a variety of tissues
In scleroderma, the collagen and matrix buildup causes?
Vascular symptoms
Systemic symptoms
Skin
Carpal tunnel
Raynauds
ILD
Renal impairment
GI
Vascular disease from scleroderma
Vascular:
- Widespread vascular lesions and endotheilial dysfunction
- thickening of vascular wall
- narrowing of vascular lumen
Systemic symptoms of scleroderma
Systemic:
- fever
- malaise
- weight loss
- myalgias
Skin lesions of scleroderma present where?
Skin
- lesions on the fingers, hands, face
GI symptoms of scleroderma
GI
- dysmotility
- GERD (aspiration pneumonitis)
- chronic esophagitis
- stricture formation
- vascular ectasia in the stomach (watermelon stomach)
Complications of scleroderma presentations
Sclerodermal renal crisis
Respiratory failure
ARDS
Aspiration pneumonitis
Pulmonary HTN
Alveolar hemorrhage
Heart failure
Arrhythmias
Conduction disturbances
Ischemia and gangrene of digits
With all scleroderma flares you need to avoid?
Steroids - may precipitate renal crisis
What is scleroderma renal crisis?
Emergency
- renal failure
- HTN
- MAHA (microangiopathic hemolytic anemia)
Treatment for scleroderma renal crisis?
Emergently treat with ACEI
- captopril 6.25-12.5mg TID
- enalaprilat (if not po tolerant)
- 2nd line CCB
Dialysis is required in 50%, more than 1/2 will recover renal function
What is the association between RA and septic arthritis?
Septic arthritis may mimic flares of RA.
- joint aspiration will help differentiate
Why are arthritic joints at a higher risk for septic arthritis?
- Joint destructive disease (RA) are at a higher risk for septic arthritis
- amplified by immunosuppressive meds
Prevalance of septic arthritis risk in pts with rheumatoid arthritis .
Prevalance of septic arthritis is 2x in patients with RA who are on
- glucocorticoids
- TNFa (tumor necrosis factor a blockers)
Why is it harder to diagnose septic arthritis in pts with rheumatoid disease?
Physical findings like severe pain and limited ROM may be absent in cases of septic arthritis in these pts
Concern for septic arthritis in a patient with gout?
Presence of gout doesn’t exclude the possibility of concurrent septic arthritis