Objective To explore the prognostic value of hyperdense artery sign(HAS)in elderly patients with acute anterior LVO in anterior circulation undergoing mechanical thrombectomy.Methods A single-center retrospective analysis was conducted on 109 patients with acute LVO of anterior circulation admitted in our department from January 2019 to December 2022.According to their preoperative plain CT scans,they were divided into HAS positive(39 patients)and HAS negative(70 patients)groups.Baseline features,surgical indicators,complications and outcomes were compared between the two groups.Results The patients with HAS had significantly larger proportions of atrial fibrillation and symptomatic intracranial hemorrhage than those without the sign(53.8％vs 31.4％,20.5％vs 5.7％,P＜0.05).The rate of 90-day good prognosis was a little higher in the HAS positive group than the negative group,though no statistical difference(48.7％vs 38.6％,P＞0.05).Male,stroke history,SBP,NIHSS at admission,HAS positivity,revasculiza-tion,and symptomatic intracranial hemorrhage were independent influencing factors for favorable prognosis in the patients(P＜0.05,P＜0.01).Conclusion The presence of HAS is a prognostic marker for patients with acute LVO in anterior circulation undergoing mechanical thrombectomy,and it is associated with a higher risk of symptomatic intracranial hemorrhage.

Objective To explore the prognostic value of hyperdense artery sign(HAS)in elderly patients with acute anterior LVO in anterior circulation undergoing mechanical thrombectomy.Methods A single-center retrospective analysis was conducted on 109 patients with acute LVO of anterior circulation admitted in our department from January 2019 to December 2022.According to their preoperative plain CT scans,they were divided into HAS positive(39 patients)and HAS negative(70 patients)groups.Baseline features,surgical indicators,complications and outcomes were compared between the two groups.Results The patients with HAS had significantly larger proportions of atrial fibrillation and symptomatic intracranial hemorrhage than those without the sign(53.8％vs 31.4％,20.5％vs 5.7％,P＜0.05).The rate of 90-day good prognosis was a little higher in the HAS positive group than the negative group,though no statistical difference(48.7％vs 38.6％,P＞0.05).Male,stroke history,SBP,NIHSS at admission,HAS positivity,revasculiza-tion,and symptomatic intracranial hemorrhage were independent influencing factors for favorable prognosis in the patients(P＜0.05,P＜0.01).Conclusion The presence of HAS is a prognostic marker for patients with acute LVO in anterior circulation undergoing mechanical thrombectomy,and it is associated with a higher risk of symptomatic intracranial hemorrhage.

Objective To investigate the clinical feasibility and safety of direct aspiration thrombectomy used as a preferred strategy for patients with acute posterior circulation-large vessel occlusion(PC-LVO).Methods The patients with acute PC-LVO,who received direct aspiration therapy as the preferred thrombectomy strategy at the Department of Neurology,Baise Municipal People's Hospital of China from January 2020 to December 2022,were enrolled in this study.The baseline data were collected from all the included patients,and the surgical procedure and related parameters were recorded,the clinical effectiveness,safety and prognosis were evaluated.Results A total of 36 patients were included in this study with an average age of 61.31 years,and 75.0％of them were males.The median time from the onset of disease to the perform of puncturing was 419.5 minutes,and the median time from puncturing to vessel recanalization was 60 minutes.The vascular recanalization rate was up to 91.7％,the incidence of symptomatic intracranial hemorrhage was 11.1％,and the incidence of operation-related complications was 8.3％.The postoperative 90-day good prognosis(mRS score ≤3 points)was obtained in 41.7％of patients,and the mortality rate was 25％.Conclusion For patients with acute PC-LVO,direct aspiration therapy used as the preferred strategy of mechanical thrombectomy has a high vascular recanalization rate and an acceptable safety.