It was reported that patient death occurred.A 1.75mm rotapro was selected for use in the severely calcified proximal and mid left anterior descending artery (lad).There were multiple plaque locations and the length of the lesion was long at 40mm.During the procedure in the proximal lad, st elevation and a decrease of blood pressure was observed.Drugs were administered.The rotapro was passed while blood flow was slowly flowing.Upon use within the mid lad, it went down to 10,000 and ventricular fibrillation occurred.There were no rotapro device issues during the procedure.An intra-aortic balloon pump (iabp) was introduced.However, blood pressure did not recover and the patient died.The cause of death was circulation insufficiency.It was suspected that the 1.75mm size use in the mid lad or continuation of treatment within the mid lad may have contributed to the event.
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