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[Systemic embolism of cholesterol crystals]
P Dumazer1, P Soula, I Soula-Bisseuil
1Centre de dialyse périodique, hôpital Purpan, Toulouse.
La Revue Du Praticien
|May 1, 1994
Summary
Systemic cholesterol crystal emboli (SCCE), a complication of severe atheroma, present varied symptoms and have a poor prognosis. Prevention, by avoiding triggering procedures like femoral catheterization, is crucial for high-risk patients.
Area of Science:
- Cardiovascular Medicine
- Pathology
- Nephrology
Context:
- Systemic cholesterol crystal emboli (SCCE) arise from ulcerated atheromatous plaques.
- SCCE are increasingly recognized as a complication in patients with severe atherosclerosis, particularly older men with vascular disease.
- Triggering factors include vascular surgery, anticoagulation, fibrinolysis, and predominantly, femoral retrograde catheterization.
Purpose:
- To describe the clinical presentation, diagnosis, and management of systemic cholesterol crystal emboli.
- To highlight the association between SCCE and specific medical procedures.
- To emphasize the poor prognosis and the importance of preventive strategies.
Summary:
- SCCE manifest with diverse clinical signs affecting multiple organs such as skin, kidneys, and gastrointestinal tract.
- Diagnosis involves identifying cholesterol crystals in ocular fundi and tissue biopsies (skin, muscle, kidney).
- Mortality exceeds 80% in systemic cases, with limited treatment options beyond palliative care and dialysis.
Impact:
- Highlights the significant morbidity and mortality associated with SCCE.
- Underscores the critical need for preventive measures, especially avoiding invasive procedures in high-risk patients.
- Suggests symptomatic treatment and dialysis can improve survival in affected individuals.