It was reported that a stent fracture occurred.An angioplasty was performed with a non-boston scientific (bsc) introducer sheath, a non-bsc guide catheter, and a non-bsc guidewire.The 70% stenosed target lesion was located in the moderately tortuous and moderately calcified circumflex artery.Following pre-dilatation was performed with a semi-pleasant balloon.An attempt was made to advance the stent, but the stent was changed to one of equal diameter.A 4.00 x 16 synergy drug-eluting stent (des) was selected for treatment; however, a fracture was noted, and the stent was deformed when moving forward.Subsequently, stent fracture and damage were observed in the proximal third of the stent.The device was removed intact from the patient and replaced with a different stent.No patient complications were reported.
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