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A novel technique to manage internal carotid artery injury in endoscopic endonasal skull base surgery in the premise of proximal and distal controls

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Intraoperative internal carotid artery injury is one of the most daunting complications in endoscopic skull base surgery. This paper proposed a novel technique to manage ICA injury after proximal and… Click to show full abstract

Intraoperative internal carotid artery injury is one of the most daunting complications in endoscopic skull base surgery. This paper proposed a novel technique to manage ICA injury after proximal and distal controls. The appropriate block sites together with the proximal and distal controls of ICA were demonstrated in six injected cadaveric specimens. The surgical outcomes of five patients with intraoperative ICA injury and managed with this concept were retrospectively reviewed. Five block sites for vascular control could be identified in all six specimens, including (1) distal to the distal dural ring, (2) proximal to the proximal dural ring, (3) anterior genu of the parasellar ICA, (4) the upper third of the paraclival ICA, and (5) just above the foramen lacerum. Both proximal and distal controls of ICA were achieved by using the block sites in combination. Gross tumor resection was achieved in all five cases after the intraoperative ICA injury was successfully managed. Three coping techniques were used, including direct coagulation to seal (three cases), endoscopic suture (one case), and coagulation to sacrifice (one case). Focal brainstem infarction occurred in one case, one patient died of intracranial infection, and the other three cases had no sequelae. No pseudoaneurysm occurred in all patients. Except the sacrificed ICA, the other ICA was intact during follow-up. It is technically feasible to manage ICA injuries after proximal and distal controls during EEA surgeries. The surgical outcomes from our case series supported the use of this novel technique.

Keywords: distal controls; novel technique; manage; injury; proximal distal

Journal Title: Neurosurgical Review
Year Published: 2021

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