It was reported that stent failure to deploy occurred and the procedure was cancelled.The target lesion was located in the internal carotid artery.The patient was sedated and after the puncture needle was inserted about 4cm, it was noticed that there was a bright red blood squirting out in the femoral artery.An 8f catheter sheath was inserted and an 8f guide catheter was advanced to the ostial of the left carotid artery.Subsequently, a 8.0-29 carotid wallstent monorail stent was advanced along the 0.014 micro guidewire under the road diagram.However, the stent failed to deploy even after several attempts due to vessel tortuosity and stent obstruction in front.The procedure was not completed due to this event and there were no patient complications nor injuries reported and the patient was stable.
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