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[Restenosis after CEA: pathogenesis and treatment].
Shuji Kogure1, Nobuyuki Sakai, Kenichi Murao
1Department of Neurosurgery, National Cardiovascular Center, 5-7-1 Fujishirodai, Suita-city, Osaka, 565-8565, Japan.
No Shinkei Geka. Neurological Surgery
|December 21, 2002
Summary
Restenosis after carotid endarterectomy (CEA) occurred in 6.7% of Japanese patients, particularly women. Stent placement showed a lower 30-day stroke risk than re-do CEA for treating restenosis.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Neurology
Context:
- Carotid endarterectomy (CEA) is a common procedure to prevent stroke.
- Restenosis after CEA can lead to recurrent symptoms and stroke.
- Optimal management strategies for post-CEA restenosis require further investigation.
Purpose:
- To investigate the incidence and mechanisms of restenosis following CEA in Japanese patients.
- To compare the efficacy and safety of re-do CEA versus carotid stenting for treating restenosis.
- To identify risk factors associated with restenosis after CEA.
Summary:
- This retrospective study analyzed 126 patients (135 CEA procedures) in Japan, identifying a 6.7% restenosis rate (>50% diameter reduction) within a mean follow-up of 11 months.
- Recurrent stenosis was significantly more common in women (p=0.015) and all affected patients were asymptomatic.
- For restenosis treatment, stent placement demonstrated a 0% 30-day stroke morbidity-mortality rate, compared to 33.3% for re-do CEA.
Impact:
- Stent placement appears to be a safer option for treating carotid restenosis post-CEA due to lower embolic risk and avoidance of re-operating on previous surgical sites.
- Thorough plaque removal during primary CEA and consideration of patch closure, especially in female patients, may help prevent restenosis.
- Findings contribute to optimizing management strategies for carotid artery disease and preventing stroke recurrence.