Objective To investigate the efficacy of concurrent carotid artery stenting(CAS)in emergency endovascular treatment of anterior circulation tandem lesions and related influencing factors for prognosis.Methods A retrospective analysis was performed for the clinical data of 121 patients with anterior circulation tandem lesions who underwent emergency endovascular treatment in Linyi People's Hospital from January 2020 to December 2021,and intraoperative CT reperfusion injury was observed to decide whether concurrent CAS should be performed.The modified Rankin Scale(mRS)score on day 90 after surgery was used for evaluation,and then the patients were divided into good prognosis group(an mRS score of 0?2)and poor prognosis group(an mRS score of 3?6).The logistic regression analysis was used to investigate the influencing factors for the clinical prognosis of patients with anterior circulation tandem lesions after emergency endovascular treatment,including concurrent CAS.Results General clinical data were compared between the good prognosis group and the poor prognosis group,and the univariate analysis and multivariate binary logistic regression analysis showed that that preoperative CT ASPECTS score[odds ratio(OR)=1.207,95%confidence interval(CI)1.001?1.456,P=0.049],time from disease onset to recanalization(OR=0.997,95%CI 0.995?0.999,P=0.012),and symptomatic intracranial hemorrhage(OR=-3.057,95%CI 0.005?0.411,P=0.006)were independent influencing factors for the prognosis of patients with anterior circulation tandem lesions after emergency endovascular treatment.Conclusion Exclusion of reperfusion injury based on intraoperative CT and concurrent CAS for anterior circulation tandem lesions do not increase the risk of hemorrhage,and presence of the risk of reperfusion injury based on intraoperative CT without stenting does not increase the risk of occlusion within a short period of time.There are no significant differences in 90-day good prognosis rate and mortality rate between the non-CAS group and the CAS group.High ASPECTS score is a protective factor for good prognosis in patients with anterior circulation tandem lesions,while a longer time from disease onset to recanalization and symptomatic intracranial hemorrhage are influencing factors for good prognosis.

Objective:To systematically evaluate the efficacy and safety of general anesthesia versus conscious sedation in patients with endovascular therapy for acute ischemic stroke.Methods:Databases, including English databases PubMed, Embase and Cochrane, as well as Chinese databases Wan Fang Data and CNKI, were screened for randomized controlled trials (RCT) of general anesthesia versus conscious sedation on the effect of endovascular treatment for acute anterior circulation ischemic stroke. The searching period was from the establishment of databases to July 14, 2022. Two researchers independently screened literatures, extracted data and evaluated the risk of bias. And meta-analysis was performed using RevMan5.3 software.Results:A total of 7 RCTs involving 923 patients were included, with 461 in the general anesthesia group and 462 in the other. As the meta-analysis showing, general anesthesia could significantly improve the good outcomes (modified Rankin Scale score≤2) at 3 months after endovascular treatment in comparison with conscious sedation ( OR=1.34, 95% CI 1.01-1.78, P=0.04), and significantly increased the rate of successful revascularization ( OR=1.87, 95% CI 1.32-2.65, P<0.001). In addition, there were no statistically significant differences between the two groups in mortality ( OR=0.93, 95% CI 0.66-1.29, P=0.65), symptomatic intracranial hemorrhage ( OR=0.88, 95% CI 0.57-1.35, P=0.55) and intervention-related complications ( OR=0.83, 95% CI 0.50-1.36, P=0.46). However, general anesthesia was associated with higher risk for both 20% reduction in mean arterial pressure ( OR=4.76, 95% CI 1.49-15.19, P=0.008) and pneumonia ( OR=2.58, 95% CI 1.51-4.39, P<0.001). Conclusions:Compared with conscious sedation, endovascular treatment under general anesthesia in patients with acute anterior circulation ischemic stroke may contribute to better outcomes and higher successful revascularization. However, this method will lead to the risk of blood pressure variability and the incidence of pneumonia.