For a 100% unilateral carotid occlusion, what is the recommended management?

For a 100% unilateral carotid occlusion, what is the recommended management?

• A. Endarterectomy on the occluded side
• B. Anticoagulation only
• C. Leave it alone; rely on contralateral circulation
• D. Stenting on the occluded side

Answer: (C)

When one carotid artery is completely occluded, the brain usually relies on collateral flow from the opposite carotid and the vertebrobasilar system via the Circle of Willis. Because there is no patent lumen to restore or bypass on the occluded side, revascularization procedures such as endarterectomy or stenting do not improve perfusion and carry unnecessary risk. The appropriate approach is conservative management focused on preventing stroke and optimizing perfusion: use antiplatelet therapy and statin therapy as indicated, control blood pressure and other vascular risk factors, and monitor with imaging as needed. Anticoagulation alone typically isn’t recommended for isolated complete occlusion, since it doesn’t restore flow and increases bleeding risk. In this scenario, leaving it alone and relying on the contralateral circulation is the best strategy.

When one carotid artery is completely occluded, the brain usually relies on collateral flow from the opposite carotid and the vertebrobasilar system via the Circle of Willis. Because there is no patent lumen to restore or bypass on the occluded side, revascularization procedures such as endarterectomy or stenting do not improve perfusion and carry unnecessary risk. The appropriate approach is conservative management focused on preventing stroke and optimizing perfusion: use antiplatelet therapy and statin therapy as indicated, control blood pressure and other vascular risk factors, and monitor with imaging as needed. Anticoagulation alone typically isn’t recommended for isolated complete occlusion, since it doesn’t restore flow and increases bleeding risk. In this scenario, leaving it alone and relying on the contralateral circulation is the best strategy.