What should be the next step in management for a patient with ICA stenosis greater than 70% who is symptomatic?

• A. Endovascular stenting
• B. Carotid endarterectomy
• C. Medication management only
• D. Watchful waiting

Answer: (B)

In a patient with internal carotid artery (ICA) stenosis greater than 70% who is symptomatic, the next step in management should be carotid endarterectomy. This surgical procedure is indicated because the patient has a significant stenosis along with symptoms such as transient ischemic attacks (TIAs) or strokes. The rationale for opting for carotid endarterectomy in this scenario is well-supported by clinical guidelines and evidence.

Carotid endarterectomy involves surgically removing the atherosclerotic plaque from the carotid artery to restore normal blood flow to the brain, thereby decreasing the risk of future strokes. Studies have shown that in patients with severe stenosis who are symptomatic, this intervention significantly reduces the risk of recurrent ischemic events compared to non-surgical options.

Endovascular stenting is generally considered for patients who are not surgical candidates or when risks of traditional surgery outweigh the benefits. While it is a less invasive alternative, current recommendations favor endarterectomy in symptomatic patients with high-grade stenosis.

Medication management only or watchful waiting would not be appropriate strategies given the high risk of stroke posed by significant ICA stenosis accompanied by symptoms. These approaches would neglect the urgency of addressing the patient's current condition and preventing future cerebrovascular events.