Planned extra-anatomic cerebral revascularization for carotid artery ligation

Area of Science:

• Vascular Surgery
• Neurosurgery
• Cerebrovascular Disease

Background:

• Spontaneous carotid artery disruption, often linked to prior irradiation and head/neck surgery, necessitates emergency carotid artery ligation.
• Carotid artery ligation can lead to unpredictable cerebral ischemia and neurological complications.
• Extra-anatomic bypass grafts offer a reconstructive option for maintaining cerebral perfusion.

Observation:

• Three patients with spontaneous carotid artery disruption underwent emergency ligation.
• Cerebral revascularization was achieved using autologous saphenous vein extra-anatomic bypass grafts.
• Procedures included one external-carotid-to-external-carotid cross-over bypass and two axillointernal carotid bypass grafts.

Findings:

• Extra-anatomic bypass grafts effectively compensated for the ischemic effects of carotid artery ligation.
• A planned cerebral revascularization strategy at the time of ligation is recommended over reactive management.
• This approach prevented neurological disability and death due to cerebral ischemia.

Implications:

• Extra-anatomic bypass grafting is a viable strategy for preventing cerebral ischemia in complex carotid artery emergencies.
• Understanding the role of infection and anatomical considerations is vital for preventing recurrent complications.
• Proactive surgical planning can significantly improve patient outcomes in cases of carotid artery rupture.