Safety analysis of carotid endarterectomy without shunting in carotid artery stenosis patients with contralateral carotid occlusion

To investigate the safety of carotid endarterectomy (CEA) without shunting in carotid artery stenosis (CAS) patients with contralateral carotid occlusion (CAO) under the protection of monitoring of cerebral blood oxygen saturation. A total of 71 patients with CAS was enrolled in our research during 2013 to 2016. They were divided into two groups which were group A: 20 CAS patients with contralateral CAO, and group B: 51 CAS patients without contralateral CAO. All patients were given CEA without shunting during operation.One and 6 months following up was carried to observe the incidence of newly hemorrhage and infarction on operation side and adverse cardiac events. There was none adverse cardiac event and newly infarction. But there was 1 (5.00%) newly hemorrhage in group A during the 1 month following up. None adverse event was found in group B. During the 3 months following up, none adverse event was found in group A and 3 (5.88%) newly infarction patients were found in group B. However, there was no signif