(b)(6) clinical study.It was reported that angina, myocardial infarction and in-stent restenosis occurred.In (b)(6) 2013, the patient presented due to myocardial infarction and was referred for cardiac catheterization.On the next day, coronary angiography and the index procedure were performed.The target lesion #1 was located in the proximal left anterior descending (lad) artery with 90% in-stent restenosis (isr) of bare metal stent (bms) and was 15mm long with a reference vessel diameter of 2.75mm.Target lesion #1 was treated with pre-dilatation and placement of a 2.75x16mm promus element¿ plus drug-eluting stent.Following post dilatation, residual stenosis was 0%.The target lesion #2 was a de novo lesion located in the proximal left circumflex (lcx) artery with 80% stenosis and was 10mm long with a reference vessel diameter of 2.75mm.Target lesion #2 was treated with pre-dilatation and placement of a 2.75mm x 20mm promus element¿ plus drug-eluting stent.Following post dilatation, residual stenosis was 0%.On the following day, the patient was discharged on aspirin and clopidogrel.In (b)(6) 2018, patient presented to emergency department via emergency medical services (ems) with the complaints of recurrent chest pain associated with shortness of breath.The patient's cardiac enzymes were noted to be elevated and myocardial infarction was reported.Electrocardiogram revealed normal sinus rhythm, septal infract possible lateral infract.Subsequently, the patient was referred for cardiac catheterization and coronary angiography was performed.The 99% stenosis located in ostial portion of lcx was treated with balloon angioplasty and placement of 3.0 x 18mm non-bsc drug-eluting stent following post-dilation, the residual stenosis was 0% and timi 3 flow noted.On the next day, the event was considered as resolved.
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