blunt carotid injury advice

[daniel simon]

32 YO MVA victim, was  intubated and ventilated on site for a GCS of 7 and
maxilo-facial injury. He was evacuated to a local hospital where a Rt
chest-tube was inserted for pneumothorax. Brain CT showed sub arachnoid
hemorrhage with some small contusions , a C1 fracture was found as well. He
was then transferred to a Level 1 Trauma Center. On admission he had a GCS
of 5 (t) with right hemiparesis. Neck CT -angio  showed dissection of the
left internal carotid artery. What  shall we do now?
thanks
Daniel Simon
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