Systemic Sclerosis Flashcards
what are the three classic findings of systemic sclerosis?
autoimmunity
vascular damage
tissue fibrosis
name the three subtypes of systemic sclerosis
limited cutaneous
diffuse cutaneous
systemic cutaneous sine scleroderma
what is systemic sclerosis sine scleroderma?
skin spared
what is the mnemonic to remember sx of limited diffuse systemic sclerosis?
CREST
what is the C in crest?
calcinosis
what is the R in crest?
raynauds
what is the E in crest?
esophageal dysfxn
what is the S in crest?
sclerodactyly
what is the T in crest?
telangiectasias
what two abs are found in diffuse cutaneous systemic sclerosis?
anti scl 70
anti RNA poly 1 and III
what ab is positive in limited cutaneous systemic sclerosis?
anti centromere
what are the four most common causes of raynauds?
SLE
systemic sclerosis
sjogrens
dermatomyositis
name three drug classes you can give for raynauds?
ca channel blockers
nitrates
PDE inhibitors
what does calcinosis look like?
white deposits on exteremities
what is leading cause of death in systemic sclerosis?
pulmonary fibrosis
what type of lung disease occurs in systemic sclerosis?
usually interstitial lung disease
what type of systemic sclerosis has pulmonary fibrosis more often?
diffuse cutaneous
who has more scleroderma renal crises?
people with diffuse cutaneous systemic sclerosis
explain what happens in scleroderma renal crisis
malignant hypertension…high renin state…MAHA, thrombocytopenia, proteinuria
what is a risk factor for scleroderma renal crisis?
previous high dose roids
what is mainstay of rx for renal crisis with scleroderma?
ACEs
what antibody is heavily associated with ILD and diffuse systemic sclerosis?
topoisomerase I (scl-70)
what antibody is associated with renal crisis and diffuse cutaneous systemic sclerosis?
RNA polymerase III
what meds should be avoided in systemic sclerosis? why?
avoid steroids because of risk of renal crisis