Long-term results after carotid artery surgery

Area of Science:

• Vascular Surgery
• Neurology
• Cardiology

Background:

• Carotid artery disease poses a significant risk for stroke.
• Carotid reconstruction aims to prevent stroke and improve patient outcomes.
• Long-term follow-up data is crucial for evaluating the efficacy of carotid reconstruction.

Purpose of the Study:

• To evaluate the long-term outcomes of carotid reconstructions.
• To assess survival rates and asymptomatic status post-procedure.
• To identify factors influencing outcomes, such as coronary artery disease and lesion laterality.

Main Methods:

• A retrospective analysis of 414 carotid reconstructions in 352 patients (1971-1982).
• Follow-up data collected over a median of 35 months (range: 6 months–12 years).
• Analysis included survival rates, asymptomatic status, and stroke frequency, stratified by patient characteristics.

Main Results:

• At follow-up, 75.8% of patients (267) were alive, with 253 remaining asymptomatic.
• Patients with coronary artery disease (CAD) had significantly lower survival rates.
• CAD was more prevalent in patients with bilateral carotid lesions compared to unilateral lesions.
• Actuarial stroke frequency was 2.5%/year including operative morbidity, decreasing to 1%/year from 6 months to 8 years postoperatively.
• No significant difference in stroke rates was observed between age groups.

Conclusions:

• Carotid reconstruction offers favorable long-term survival and asymptomatic outcomes.
• Coronary artery disease is a significant negative prognostic factor in patients undergoing carotid reconstruction.
• The study highlights the importance of considering comorbidities in managing carotid artery disease.