(b)(6) clinical study: it was reported that in-stent restenosis and unstable angina occurred.In (b)(6) 2014, the patient was referred for cardiac catheterization and the index procedure was performed on the same day.The target lesion #1 was located in proximal left circumflex (lcx) artery with 100% stenosis, a length of 16mm, and a reference vessel diameter of 2.5mm.The target lesion #1 was treated with pre-dilatation and placement of 2.50 x 25 mm promus element stents with the residual stenosis as 0%.Three days after the procedure, the patient was discharged on aspirin and clopidogrel.In (b)(6) 2017, the patient was hospitalized and diagnosed with unstable angina pectoris.The following day, coronary angiography was performed, which revealed 90% stenosis at the proximal lcx.The in-stent restenosis noted in proximal lcx was treated with predilatation and placement of a stent with 0% residual stenosis.Four days later, the event was recovered/resolved, and the patient was discharged.
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