Abstract
Management of zygomatic bone fractures is still debated. Method and delay for intervention has to be chosen considering respective issues of operative or conservative treatments, especially hemorrhagic complications. The maxillofacial surgeon must be able to determine life-threatening situations and to react appropriately. We report 2cases of external carotid branches pseudoaneurysm leading to massive hemorrhage after early or delayed zygomatic fracture surgery. The first patient underwent open reduction of fracture by intraoral approach. An active bleeding occurred in the immediate postoperative time. In the second case, a zygomatic osteotomy was performed 1year after fracture. Bleeding occurred 2weeks after surgery. In both cases, angiography demonstrated a pseudoaneurysm developed from the external carotid branches. Embolisation led to rapid bleeding control. Severe hemorrhage resulting from maxillofacial trauma may be life-threatening. Once the "damage control" principles applied, selective embolisation of external carotid branches is an efficient alternative to surgery for the control of bleeding resulting from ruptured pseudoaneurysm.
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