The cholesterol emboli syndrome in atherosclerosis
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Published on: September 5, 2016
Adriana Quinones1, Muhamed Saric
1Leon H. Charney Division of Cardiology, New York University Langone Medical Center, 560 First Avenue, New York, NY 10016, USA. Adriana.Quinones@nyumc.org
Insights
Cholesterol emboli syndrome, a complication of atherosclerosis, occurs when cholesterol crystals block small arteries, causing organ damage. Management focuses on risk factor modification and supportive care, as no specific cure exists.
Area of Science:
- Cardiovascular Medicine
- Vascular Biology
Background:
- Cholesterol emboli syndrome (CES) is a rare but severe complication of atherosclerotic disease.
- It involves the embolization of cholesterol crystals and atheroma debris from the aorta to smaller arteries.
Purpose of the Study:
- To describe the pathophysiology, clinical manifestations, and current management strategies for cholesterol emboli syndrome.
Main Methods:
- Literature review of atherosclerotic disease complications.
- Analysis of clinical presentations and diagnostic findings in CES.
- Evaluation of treatment outcomes for supportive and interventional measures.
Main Results:
- CES leads to end-organ damage via arterial occlusion and inflammation.
- Common manifestations include renal failure, blue toe syndrome, and neurological deficits.
- No specific therapy exists; management is supportive.
Conclusions:
- Cholesterol emboli syndrome requires prompt recognition and supportive care.
- Risk factor modification, statins, and antiplatelet agents are key.
- Anticoagulation and thrombolysis should be avoided; surgical/endovascular exclusion of the source may be necessary.
Abstract:
Cholesterol emboli syndrome is a relatively rare, but potentially devastating, manifestation of atherosclerotic disease. Cholesterol emboli syndrome is characterized by waves of arterio-arterial embolization of cholesterol crystals and atheroma debris from atherosclerotic plaques in the aorta or its large branches to small or medium caliber arteries (100-200 μm in diameter) that frequently occur after invasive arterial procedures. End-organ damage is due to mechanical occlusion and inflammatory response in the destination arteries. Clinical manifestations may include renal failure, blue toe syndrome, global neurologic deficits and a variety of gastrointestinal, ocular and constitutional signs and symptoms. There is no specific therapy for cholesterol emboli syndrome. Supportive measures include modifications of risk factors, use of statins and antiplatelet agents, avoidance of anticoagulation and thrombolytic agents, and utilization of surgical and endovascular techniques to exclude sources of cholesterol emboli.
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