(b)(6) clinical study.It was reported that chest pain and in-stent restenosis (isr) occurred.In (b)(6) 2013, the patient presented due to unstable angina.Subsequently, the patient was referred for cardiac catheterization and the index procedure was performed on the same day.The target lesion # 1 was a de novo long lesion located in the proximal right coronary artery (rca) and extending to mid rca, with 90% stenosis and was 38 mm long with a reference vessel diameter of 3.00 mm.The lesion was treated with pre-dilatation and placement of a 2.75 x 38 mm promus element¿ plus drug-eluting stent.Following post dilatation, residual stenosis was 0%.In (b)(6) 2018, the patient presented with chest pain and lower back pain and describes the pain as sharp and across chest.The patient reported to be falling short of breath while talking and rated the pain to be 7-8 out of 10 in terms of severity.The subject is on hydrocodone which helps to decrease the pain.The electrocardiogram revealed normal sinus rhythm with t wave inversion in v5 and v6.Chest x-ray demonstrated no evidence of acute cardiopulmonary disease.Post assessment, the patient was noted to have an elevated d-dimer and repeat troponins were recommended.The patient was hospitalized on the same day.Nuclear stress test was positive for anterior reversible ischemia and showed large severe mainly fixed inferolateral perfusion defect consistent with remote myocardial injury.There was significant drop in left ventricular ejection fraction which denoted multivessel disease involvement.Cardiology and neurosurgery was consulted.Magnetic resonance imaging (mri) revealed no significant interval changes, multilevel broad-based disc bulges with multilevel borderline narrowing of the spinal canal and multilevel neural foraminal narrowing bilaterally.Cardiology and neurosurgery was consulted and cardiac catheterization was recommended.Seven days later, the patient¿s coronary angiography revealed 80% in-stent restenosis in proximal rca and was treated with 3.0 x 15 mm non-bsc balloon and placement of a 2.5 x 28 mm synergy stent.Additionally, on the same day, 80% in-stent re-stenosis (non-bsc stent) in proximal rca was treated with 3.0 x 15 mm non-bsc balloon and placement of 2.5 x 28 mm synergy stent.The subject was referred for cardiac rehabilitation and recommended follow-up with the same.Post neurosurgery consultation, the subject was recommended for a conservative treatment with physical therapy for the lower back pain.Three days later, the event was considered resolved and the patient was discharged from the hospital.
|