Key result
Carotid endarterectomy links to up to ~37% recurrent stenosis but rarely causes related symptoms.
Why the study?
The management of recurrent carotid stenosis after carotid endarterectomy remains a clinical dilemma with varying recommendations for symptomatic and asymptomatic patients.
Recurrent carotid stenosis after endarterectomy occurs in 1-37% of patients, though only 0-8% are symptomatic, and management typically involves repeat endarterectomy or endovascular techniques.
Recurrent stenosis after CE is often asymptomatic; leaves open optimal surveillance intervals and reintervention thresholds.
Multiple randomised trials over the last decade for both symptomatic and asymptomatic carotid stenosis have proven the efficacy of carotid endarterectomy (CE) in reducing the risk of stroke. The long-term patency of the carotid artery after CE is an important factor in the success of the operation. The incidence of recurrent carotid stenosis (excluding residual lesions) ranges from 1 to 37% with only 0-8% of patients having restenosis-related symptoms (1). Generally, recurrent carotid stenosis is attributed to myointimal hyperplasia during the early postoperative period (within 3 years) or recurrent atherosclerosis thereafter. The management of recurrent carotid stenosis after CE remains a dilemma. It is generally accepted that operation for significant recurrent carotid stenosis is indicated for symptomatic patients, and several authors also recommend CE for >80% asymptomatic recurrent stenosis. Treatment of recurrent carotid stenosis involves repeat endarterectomy with patch angioplasty, although more recently endovascular techniques have been used.
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Sadideen et al. (2006) conducted a review in Recurrent carotid stenosis. Carotid endarterectomy was evaluated. Carotid endarterectomy is associated with a 1% to 37% incidence of recurrent carotid stenosis, though only 0% to 8% of patients experience restenosis-related symptoms.
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