A. Diethelm et al., CHOLESTEROL CRYSTAL EMBOLIZATION AS A COM PLICATION OF FIBRINOLYTIC TREATMENT OF ACUTE MYOCARDIAL-INFARCTION, Schweizerische medizinische Wochenschrift, 124(33), 1994, pp. 1437-1441
A 63-year-old male patient admitted with acute inferior myocardial inf
arction was treated with tissue plasminogen activator (rt-PA) and hepa
rin. 4 hours after the initiation of the rt-PA infusion he showed pain
ful cutaneous alterations on the lower trunk, mistaken as drug-induced
rash and later correctly identified as livedo reticularis. Simultaneo
usly, renal function deteriorated. Assuming hypersensitivity vasculiti
s, we instituted immunosuppressive treatment which proved to be ineffe
ctive. Skin biopsy including the deeper layers showed multiple cholest
erol emboli. Anticoagulants were stopped and we noticed no further cho
lesterol embolism or further decline of renal function. 10 previous pu
blications have mentioned a causal relationship between systemic fibri
nolytic treatment and the cholesterol crystal embolism syndrome. In 7
cases, however, angiographic procedures were used or the interval betw
een fibrinolysis and the occurrence of cholesterol crystal embolism wa
s too long to exclude spontaneous or heparin-induced cholesterol cryst
al embolism. The short interval in our own case points clearly to the
systemic fibrinolytic therapy as the culprit. We would like to draw at
tention to the possibility that in individuals with advanced atheroscl
erotic lesions of the aorta or major arteries, systemic fibrinolytic t
reatment of myocardial infarction may give rise to the cholesterol cry
stal embolism syndrome.