Successful carotid stenting for chronic total occlusion of the internal carotid artery

Area of Science:

• Neurology
• Vascular Surgery
• Interventional Cardiology

Background:

• Internal carotid artery (ICA) occlusion can lead to severe neurological deficits.
• Collateral circulation plays a crucial role in maintaining cerebral perfusion in cases of ICA stenosis or occlusion.
• Pulsatile headache can be a symptom of cerebrovascular conditions.

Purpose of the Study:

• To report a case of successful carotid artery stenting in a patient with near-total internal carotid artery occlusion.
• To highlight the role of collateral flow in managing ICA occlusion.
• To demonstrate the efficacy of endovascular treatment for symptomatic ICA occlusion.

Main Methods:

• A 64-year-old male patient presented with pulsatile headache.
• Imaging studies revealed near-total occlusion of the right proximal internal carotid artery (ICA).
• The patient underwent successful carotid artery stenting.

Main Results:

• The stenting procedure restored antegrade flow in the right ICA.
• Cerebral blood flow was adequately maintained by collateral pathways (posterior communicating and ophthalmic arteries) pre-stenting.
• No new neurological deficits or transient ischemic attacks (TIAs) occurred post-treatment.

Conclusions:

• Carotid artery stenting is an effective treatment option for symptomatic internal carotid artery occlusion.
• Successful revascularization can prevent further ischemic events in patients with ICA occlusion.
• Collateral circulation is vital for cerebral blood supply in ICA occlusion and influences treatment outcomes.