Mitrasinovic Anka, Radak Sandra, Kolar Jovo, Aleksic Nikola, Otasevic Petar, Popovic Mirjana, Radak Djordje
Department of Vascular Surgery, Institute of Cardiovascular Disease Dedinje, Belgrade, Serbia.
J Clin Ultrasound. 2010 Jun;38(5):238-43. doi: 10.1002/jcu.20670.
To measure by Doppler sonography the blood flow volume (BFV) of the ipsilateral and contralateral extracranial internal carotid arteries (ICAs) and both vertebral arteries (VAs) before and after a carotid endarterectomy (CEA) of the ICA. We correlated the result with the degree of stenosis of the ICA.
One hundred seven patients who had a CEA were divided into 2 groups. Group I consisted of subjects with stenosis of ipsilateral ICA of >or=70% to near occlusion and Group II included subjects with near occlusion. The Doppler sonographic examinations were performed 1 day before the CEA, 7 days after the CEA, and 1 month after the CEA. The peak systolic velocity, end-diastolic velocity, time-averaged maximum blood flow velocity, resistance index of the ipsilateral ICA, and the BFV of both ICAs and both VAs were calculated.
There was a significant increase in the peak systolic velocity, maximum blood flow velocity, and the BFV of the ipsilateral ICA after the CEA. The BFV of the contralateral ICA and both VAs were not significantly altered after the CEA in both groups.
The main CEA hemodynamic effect was an increase in the BFV of the ipsilateral ICA regardless of the degree of stenosis.
通过多普勒超声测量颈内动脉（ICA）内膜切除术（CEA）前后同侧和对侧颅外ICA以及双侧椎动脉（VA）的血流体积（BFV）。我们将结果与ICA狭窄程度相关联。
107例行CEA的患者分为2组。I组由同侧ICA狭窄≥70%至接近闭塞的受试者组成，II组包括接近闭塞的受试者。在CEA前1天、CEA后7天和CEA后1个月进行多普勒超声检查。计算同侧ICA的收缩期峰值速度、舒张末期速度、时间平均最大血流速度、阻力指数以及双侧ICA和双侧VA的BFV。
CEA后同侧ICA的收缩期峰值速度、最大血流速度和BFV显著增加。两组CEA后对侧ICA和双侧VA的BFV均无显著改变。
无论狭窄程度如何，CEA的主要血流动力学效应是同侧ICA的BFV增加。
