Carotid endarterectomy: where do we stand at present?

The management of carotid atherosclerosis has evolved with the introduction of endovascular techniques and advances in medical therapy. While surgical carotid endarterectomy has long been a standard treatment, new procedures like carotid artery stenting have emerged as alternatives. However, uncertainty remains regarding whether these newer methods offer outcomes comparable to traditional surgery. Additionally, changes in medical treatment and socioeconomic factors have raised questions about the continued use of surgery for asymptomatic carotid lesions. The timing of intervention for symptomatic patients also remains unclear. Prior research has established that both surgical and endovascular approaches can reduce stroke risk, but the relative benefits of each remain debated. No single study has yet provided definitive answers to these questions. The lack of consensus has led to ongoing controversy in clinical practice. This uncertainty motivates the need for updated evidence to guide treatment decisions.

This review aims to evaluate the current state of evidence regarding surgical carotid interventions and identify unresolved controversies. The authors focus on three central questions: whether carotid artery stenting is as effective as carotid endarterectomy, whether medical advances and economic factors should limit surgical use for asymptomatic lesions, and when to perform interventions in symptomatic patients. The study seeks to clarify the limitations of current data and highlight areas where further research is needed. These questions remain unresolved due to conflicting trial results and evolving clinical practices. The authors aim to provide a synthesis of the literature to inform future research and clinical guidelines. No prior work has fully addressed these specific controversies. The goal is to identify gaps in evidence and propose directions for future investigation.

The authors conducted a review of the literature on surgical carotid interventions and endovascular alternatives. They analyzed recent studies and clinical trials to assess the effectiveness of carotid endarterectomy compared to carotid artery stenting. The review approach included evaluating trial outcomes such as stroke risk reduction and procedural complications. The authors also examined the impact of medical treatment advancements on surgical indications. They considered socioeconomic factors influencing treatment decisions. No new data was collected; instead, the analysis focused on synthesizing existing evidence. The authors identified key findings from the literature to address the three central controversies. The synthesis was limited to published trials and expert consensus statements.

The Carotid Revascularisation Endarterectomy versus Stenting Trial did not show a clear advantage of stenting over surgery. However, the results remain inconclusive due to variability in patient outcomes. No definitive evidence supports stenting as equivalent to carotid endarterectomy in all cases. Medical management improvements have reduced the need for surgical intervention in some asymptomatic patients. Socioeconomic factors may influence whether surgery is indicated for asymptomatic carotid lesions. The ideal timing for intervention in symptomatic patients remains unclear. No trial has established a universally optimal time frame for carotid procedures. The lack of high-quality data limits the ability to resolve these controversies. Further large randomized controlled trials are needed to clarify these issues.

The authors conclude that current evidence does not resolve the controversies surrounding carotid interventions. Carotid artery stenting may offer outcomes similar to endarterectomy, but the data is insufficient to confirm equivalence. Medical treatment advancements and economic factors may restrict surgical use for asymptomatic lesions, but this remains unproven. The timing of intervention for symptomatic patients is still uncertain. No single study has provided definitive answers to these questions. The authors propose that further research is necessary to guide clinical practice. They suggest that large randomized controlled trials should be conducted to address these unresolved issues. The current limitations in evidence prevent clear recommendations for treatment decisions.