Cerebral protection with a crossover external carotid artery bypass during arch debranching

Area of Science:

• Cardiovascular Surgery
• Vascular Endovascular Therapy

Background:

• Thoracic aortic endovascular stent graft repair can necessitate aortic arch debranching.
• Reimplantation of the left common carotid artery and left subclavian artery to the brachiocephalic trunk is often required.
• Maintaining cerebral perfusion is critical during these complex interventions.

Observation:

• The described surgical technique focuses on preserving pulsatile flow within the internal carotid arteries.
• This is achieved even with proximal clamping of the common carotid arteries throughout the entire procedure.

Findings:

• The technique successfully provides continuous antegrade flow to the internal carotid arteries.
• This ensures adequate cerebral perfusion during the debranching and reimplantation steps.

Implications:

• This approach offers enhanced cerebral protection during thoracic endovascular aortic repair with arch debranching.
• It may reduce the risk of neurological complications associated with aortic arch surgery.
• This technique represents a valuable advancement in managing complex aortic pathologies.