Unilateral Internal Carotid Artery Occlusion Of Cervical Cerebral Infarction Clinical Analysis And Evaluation Of Collateral Circulation In DSA

The purpose:Infarction by magnetic resonance imaging study of unilateral internal carotid artery carotid occlusion of ipsilateral hemisphere, with the blood flow changes of cerebral angiography of collateral circulation compensatory ability, correlation analysis, site of infarction and neurological deficits in different branches, improve our understanding of the mechanism of myocardial infarctionMethod:From 2012May-2014 year in May in Qingzhou City People’s Hospital in 65 patients with acute cerebral infarction patients. Hospital in stable condition after cerebral angiography(DSA) was confirmed by unilateral internal carotid artery occlusion(ICAO) in cervical, and are caused by vascular symptoms and signs. The diagnosis of cerebral infarction in line with the Chinese Medical Association in 1995 fourth cerebrovascular disease meeting established standards, and the MRI DWI sequence was confirmed by cerebral infarction According to the regional grouping of infarction, middle cerebral artery(MC) region of the cortex,premotor cortex(AWS), watershed area of cortical watershed area(PWS), within the watershed area, watershed infarction(IWS), according to the regional branch of collateral circulation compensatory, divided into a level two and level three compensation compensation. Study on the correlation between different parts of infarction and collateral types and the effect on nerve function. Application SPSS12.0 statistical software for data processing and statistical analysis. The age distribution was tested for normality, accord with normal distribution, the mean and standard deviation(x ± s) said. The anatomy of the infarction in the territory of distribution is expressed as a percentage, 2 test was used between groups, 1 expected value is less than 5 when using Fisher’s exact test. P < 0.05, the difference was statistically significant.1.65 cases of patients, 34 cases of primary collateral circulation, which opened in 10 cases of anterior communicating artery, posterior communicating artery in 21 cases before and after the opening, traffic artery in 13 cases.2.Within the watershed infarction: in the primary collateral circulation, cerebral watershed3. Watershed infarction: a collateral circulation of 5 cases of open group(5/34), two levels of collateral circulationof 13 cases of open group(13/21), one or two levels of collateral circulation and 5 cases of open(5/10), two levels of collateral circulation group and the level of collateral circulation group and the one or two level of collateral circulation and the open group compared with statistical the significance of(P=0.001,0.002).4. Regardless of the NIHSS score less than 7 points or >7 points within the watershed infarction and watershedinfarction and other types of infarction, comparison, was statistically significant(P <0.05).5. Regardless of the NIHSS score less than 7 points or >7 points, grade one and grade two, and the compensation group and the other groups, there was statistically significant(P <0.05).Conclusion:1.In the unilateral internal carotid artery occlusion with a collateral circulation of cerebral infarction, with watershed infarction, higher ratio of internal watershed infarction, and watershed infarction occurred in the posterior communicating artery open level compensation.2. A collateral circulation in patients with watershed infarction, easy to appear, two levels of collateral circulation in patients prone to watershed infarction.3. A collateral circulation in lower nerve function defect is better than that of the secondary collateral circulation.4. One or two compensation and compensation on neurological function in patients with cerebral infarction with minimal impact.