Reportable based on device analysis completed on 15sep2020.It was reported that advancing difficulties were encountered.The 90% stenosed target lesion with unstable plaques was located in the severely tortuous proximal end of the left anterior descending artery (lad) and 80% stenosis in the mid lad.After predilatation was performed with a 2.5 x 15 balloon catheter, a 3.5 x 28 stent was placed.Subsequently, a 28 x 4.00 promus premier drug-eluting stent was advanced in the proximal lad.However, the device met great resistance due to severe tortuousity.Physician attempted several times but eventually retrieved the device.The procedure was completed with another of the same device.There were no patient complications reported and the patient status was stable.However, returned device analysis revealed stent damage.
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