It was reported that the patient died.The 90-95% stenosed target lesion was located in the moderately tortuous and severely calcified proximal to mid circumflex artery.A 1.25mm rotapro was selected for use.During the procedure, the burr advanced through the non-boston scientific (bsc)guide catheter, then the burr advanced around the tortuous circumflex on dynaglide mode.The burr advanced into the lesion and passed the entry point.The ablation started in the middle of the lesion and not at the proximal lesion.It was noticed that the burr rotation speed was at 130,00rpm rather than the set operation speed of 165,000rpm in the mid lesion.The burr pulled back, then the burr advanced to the lesion again but, the burr was not spinning up to the set rotation speed so, the physician decided to stop and remove the burr.During withdraw the device, the burr stuck in the lesion, and the device stalled in dynaglide mode.As the physician tried to pull the burr, the non-bsc guide catheter kept advancing into the left main artery up to the bifurcation.The patient was recommended to cough or try nitro but, the patient started to decompensate and was not responding at that point.The burr remained stuck in the nodular calcium when the patient begun to arrest.While the medical team was attending to the patient, the physician pulled the burr and successfully removed it intact.Then, an imaging catheter advanced to lesion, and it was noted that the guide caused a major dissection to the left main artery.The patient still had flow, and there was no dissection in the circumflex artery.The medical team continued resuscitating the patient and had a paced rhythm and pressure after 45 minutes.The physicians stated that the patient was too sick and would not make it through another surgery.The patient was then transferred to the intensive care unit.The patient died in that evening after the procedure.The official cause of death was dissection to left main.
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