The manufacturer became aware of the event on 2/2/2021 following a retrospective chart review research study.Dissection occurred during the procedure after successful thrombectomy.It was noted after the 087 balloon guide catheter was withdrawn into the common carotid artery, cervical projection demonstrated a dissection of the cervical segment of the internal carotid artery where the balloon guide catheter had been inflated.The physician commented that the balloon ws overinflated and may have caused the dissection.The dissection was treated with balloon angioplasty and stenting.Patient had a hemorrhagic conversion with worsening clinical status and required hemicraniectomy and evd placement.
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