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Multiple cholesterol emboli syndrome. Bowel infarction after retrograde angiography
R C Hendel1, H F Cuenoud, D F Giansiracusa
1Division of Cardiovascular Medicine, University of Massachusetts Medical Center, Worcester.
Insights
Extensive bowel infarction after cardiac catheterization, caused by cholesterol emboli, presents serious risks. Early recognition and aggressive treatment are vital for survival in this rare but dangerous condition.
Area of Science:
- Cardiology
- Gastroenterology
- Vascular Medicine
Background:
- Cardiac catheterization can lead to cholesterol embolization syndrome.
- This syndrome involves widespread blockage of small arteries by cholesterol crystals.
Observation:
- Two patients presented with extensive bowel infarction following cardiac catheterization.
- Characteristic signs included hypertension, renal insufficiency, livedo reticularis, and skin necrosis.
- Gastrointestinal bleeding and melena indicated alimentary tract ischemia.
Findings:
- Cholesterol embolization syndrome can cause severe gastrointestinal complications.
- Anticoagulation and thrombolysis are contraindicated and may worsen the condition.
- Prognosis is poor, but survival is achievable with prompt, aggressive medical and surgical intervention.
Implications:
- Recognizing multiple cholesterol emboli syndrome is crucial for timely diagnosis.
- Preventive measures during cardiac procedures are paramount.
- Aggressive management can improve outcomes in patients with extensive infarction.
Abstract:
The two patients described in this article are among the first to have been diagnosed with extensive bowel infarction as a result of cholesterol embolization following cardiac catheterization. The presence of acute hypertension, renal insufficiency, livedo reticularis, and gangrenous skin changes are characteristic manifestations of the multiple cholesterol emboli syndrome. Additionally, gastrointestinal symptoms and melena may herald ischemia and infarction of the alimentary tract. Anticoagulation and thrombolytic therapy are relatively contraindicated in this syndrome and may, in fact, be a precipitating cause. The prognosis is usually poor; however, survival is possible with aggressive medical and surgical therapy, despite extensive infarction of the gastrointestinal tract and other organs. Prevention remains the most critical aspect of management of this potentially catastrophic illness.