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Korean Circ J. 2011 Dec;41(12):754-758. English. Case Report.
Kee WJ , Jeong MH , Jang SY , Lee MG , Park KH , Sim DS , Hong YJ , Kim JH , Ahn Y , Kang JC .
The Heart Research Center Nominated by Korea Ministry of Health and Welfare, Chonnam National University Hospital, Gwangju, Korea.

We report our experience of very late stent thrombosis (VLST) in a young male patient who underwent implantation of two paclitaxel-eluting stents (PES) six years ago. The patient was compliant with standard dual antiplatelet therapy, but he presented with acute myocardial infarction which was associated with VLST. Intravascular ultrasound showed neointimal rupture with thrombus within the PES implanted in the right coronary artery. The lesion was successfully treated with balloon angioplasty without complications, however he was found to be hyporesponsive to clopidogrel when tested for adenosine diphosphate-induced platelet aggregation. The patient was discharged after uneventful recovery with triple anti-platelet therapy using aspirin, clopidogrel and cilostazol. To the best of our knowledge, a time interval of 2,223 days is the longest reported time interval between PES deployment and VLST occurrence. VLST may indeed occur in clinically stable patients, as multiple factors can influence the pathological mechanisms of VLST.

Copyright © 2019. Korean Association of Medical Journal Editors.