Effect of carotid artery stenting on the external carotid artery.

摘要: Abstract Objective We studied the fate of ipsilateral external carotid artery (ECA) after stenting internal (ICA) compared with contralateral ECA. Subjects and methods One hundred twenty-one ECAs in 112 consecutive patients who underwent Wallstent placement were prospectively color-coded duplex sonographic scanning (CCDS) 83 over 2 years. CCDS was scheduled for day before (day 0), 1) 3, 6, 12, 24 months stenting. Development ECA occlusive disease evaluated ECA–common flow ratio (peak systolic velocity). For estimation stenosis 70% or greater, 4.1 used as cutoff point. Results Before stenting, two three (one additional) occlusions seen. Median grade on 1 did not significantly change at angiography ( P = 1.0; tendency increase) .27; decrease). At follow-up 1-24 months, only), frequency greater 21 120 (17.5%) 41 107 (38.32%) 3 (2.5%) 5 (4.67%) registered time points. Progression disease, demonstrated by increase time, much more pronounced .0002). In stented ICA, (1.85%) asymptomatic recurrent stenoses found CCDS. new reported jaw claudication 10 days. Perioperative stroke major, four minor) occurred 121 (4.46%). Two minor strokes caused embolization during first year. Conclusion The progression arteriosclerotic orifice year might be due to local factors ICA stent. Its clinical significance respect effect collateral supply brain depend incidence stent rerecurrent stenosis, which low present study.