Multiple Interstrut Cavities Multiple Interstrut Cavities: A Potential Mechanism for Very Late Stent Thrombosis? Insights From Optical Coherence Tomography
A 48-year-old man who had had a 3.5 × 33 mm sirolimus-eluting stent (Cypher, Cordis, Warren, New Jersey) deployed 46 months earlier for unstable angina, presented with a 1-h history of chest pain due to an anterior ST-segment elevation myocardial infarction. He was taken to the cardiac catheterization laboratory for primary percutaneous coronary intervention. Coronary angiography demonstrated a filling defect, consistent with thrombus, within a stent in the proximal left anterior descending artery with Thrombolysis In Myocardial Infarction flow grade 3 (Figure 26_gr1A). Successful thrombectomy was performed with an Expressway (Atrium Medical, Hudson, New Hampshire) catheter. Post-thrombectomy angiogram demonstrated minimal ...

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