Prevalence of Extracranial Carotid Artery Aneurysms in Patients with an Intracranial Aneurysm

Abstract

whether grade of stenosis, or also treatment delay, or all three criteria (gender, delay and grade of stenosis) were considered. When 150 (17.7%) asymptomatic patients were added to the most precise calculation, the SPP of CEAs decreased from 201.4 to 181.5. Increasing proportion of asymptomatic patients up to 50% or 75% would have decreased the corresponding SPP down to 145.0 or 116.9 for our cohort. The SPP for symptomatic patients (including all subgroups) was 140.8, 159.9 and 179.1 with theoretical 6%, 3% and 0% complication rates, respectively. When the figures for asymptomatic patients on statin treatment at the time of randomization in ACST-1 were used, the SPP for our cohort was 169.5, but if the proportion of asymptomatic patients would have increased to 50% or 75% the SPP would have gone down to 111.2 or 66.7, respectively. Conclusion-From the same cohort of operated patients strokes prevented per 1000 operations in 5 years varied between 145.9 and 201.4 depending on which factors were taken into account. We recommend that grade of stenosis, gender and delay be all considered when the stroke preventing power of CEA services are reported. This may be particularly important when national and international comparisons are made from registered data. References 1. Rothwell PM, Eliasziw M, Gutnikov SA, Warlow CP, Barnett HJM. Sex-difference in effect of time from symptoms to surgery on benefit from carotid endarterectomy for TIA and non-disabling stroke. Stroke. 2004;35:2855e2861 2. Naylor AR. An update on the randomized controlled trials of interventions for symptomatic and asymptomatic carotid artery disease.

Asymptomatic Extracranial Internal Carotid Artery Aneurysm: A Case Report

“…두개외 경동맥류(Extracarnial carotid artery aneurysm)는 정상 경동맥 직경보다 50% 이상 확장된 경우를 말하며, 전 체 동맥류의 1% 미만을 차지하는 매우 드문 질환이다 [1,2].…”