Background: Surgery in the parasellar and paranasal regions is technically challenging because of the complex anatomic relationships between the sphenoid sinus, cavernous sinus, optic nerve, and internal carotid artery. Normal anatomic variations and pathological changes can lead to disastrous outcomes including carotid artery injury.
Methods: We present two cases of carotid injury managed at our institution. The first case involves an elective endoscopic biopsy of a clival tumor encasing a friable carotid artery. The second case features a patient transferred emergently to our medical center when brisk bleeding was encountered during functional endoscopic sinus surgery (FESS). Both carotid injuries were managed via balloon embolization with close interaction between otolaryngology and interventional radiology. We review pertinent anatomic and surgical considerations as a backdrop to a treatment algorithm for cavernous carotid hemorrhage secondary to FESS complication.
Results: The treatment algorithm prevented mortality and minimized morbidity in the two cases considered.
Conclusion: Through rare, injury to the cavernous carotid during FESS can be managed successfully given efficient hemostasis and seamless cooperation among emergency room physicians, otolaryngologists, and interventional radiologists.
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