It was reported that the speed was exceeded the set rotational speed.The 85% stenosed target lesion was located in the left anterior descending artery.A ce rotablator was selected for use.During the procedure, the rotation speed could not be adjusted precisely by turbine pressure control knob.It seems that the knob was loose.Consequently, it was noted that the observed maximum speed was 200,000rpm vs set rotational speed of 160,000rpm.The procedure was completed with this device.No complications were reported and patient was stable post procedure.
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