Abstract
Cholesterol emboli syndrome (CES) is a rare and often devastating multi-organ disease resulting in variable, nonspecific clinical findings that make diagnosis difficult, requiring a high index of suspicion. Cholesterol emboli originate from complex atheromatous plaque found in large caliber proximal arteries primarily in the aorto-iliac-femoral system. Plaque rupture results in distal embolization of plaque debris, including cholesterol crystals, that become lodged within smaller caliber arteries and arterioles resulting in mechanical obstruction and a provoked inflammatory response that leads to end-organ damage.
Multiple organs can be affected by cholesterol emboli including the brain, gastrointestinal tract, kidney, and skin that can manifest with a variety of clinical findings such as encephalopathy, gastrointestinal bleeding, renal failure, and “blue toes.” Plaque rupture can be spontaneous or result from aortic manipulation during catheterization-based procedures or vascular surgery. Treatment remains largely supportive and includes risk factor modification, statin therapy, general avoidance of anticoagulants and thrombolytic agents, and surgical or endovascular procedures to exclude sources of cholesterol emboli.
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Saric, M., Tompkins, R. (2017). Cholesterol Emboli. In: Dieter, R., Dieter, Jr, R., Dieter, III, R., Nanjundappa, A. (eds) Critical Limb Ischemia. Springer, Cham. https://doi.org/10.1007/978-3-319-31991-9_27
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