The therapeutic strategies of intracranial aneurysms include surgical clipping and endovascular embolization. Surgical clipping is still challenging for complex aneurysms with various configurations and complicated vasculatures. Endovascular treatment is risky for aneurysms with tortuous routes that make superselections of microcatheter difficult. Three dimensional(3D) printing technology can replicate aneurysm and its related vessels,then help doctors optimize the surgical or endovascular plan preoperatively and provide guidance intraoperatively, thus might improve treatment effects and reduce complications. The progress of 3D printing technique in the treatment of intracranial aneurysms will be reviewed.

Objective:To investigate the correlation between hyperhomocysteinemia (HHcy) and the onset of intracranial aneurysm (IAs).Methods:Patients with IA visited the Department of Neurosurgery, the First People's Hospital of Kashgar from February 2017 to November 2020 were retrospectively included as a case group, while patients with trigeminal neuralgia visited the hospital at the same time were selected as a control group. Demographic data, vascular risk factors and laboratory findings were compared between the two groups. Multivariate logistic regression analysis was used to determine the correlation between HHcy and IAs. Results:A total of 150 patients with IA (case group) and 112 patients with trigeminal neuralgia (control group) were included. Univariate analysis showed that there were significant differences in age, hypertension, drinking, triglyceride, low-density lipoprotein cholesterol, total Hcy and HHcy between the two groups (all P<0.05). Multivariate logistic regression analysis showed that there were significant independent correlation among males (odds ratio [ OR] 0.320, 95% confidence interval [ CI] 0.167-0.613; P=0.001), hypertension ( OR 4.915, 95% CI 2.674-9.036; P<0.001), triglycerides ( OR 1.342, 95% CI 1.030-1.750; P=0.030), total Hcy ( OR 1.171, 95% CI 1.082-1.268; P<0.001), HHcy ( OR 3.574, 95% CI 1.522-8.391; P=0.003) and IAs. Conclusion:HHcy is an independent risk factor for the increased risk of IAs.

Objective:To investigate the correlation between serum cystatin C and formation of intracranial aneurysms.Methods:Patients with unruptured intracranial aneurysms hospitalized in the First People's Hospital of Kashgar from January 2016 to September 2021 were retrospectively enrolled as the case group and patients with trigeminal neuralgia in the same period as the control group. The demographic and clinical data of patients were collected, and the correlation between serum cystatin C and the occurrence of intracranial aneurysms was determined by univariate and multivariate logistic regression analysis. Results:A total of 114 patients with unruptured intracranial aneurysms and 142 patients with trigeminal neuralgia were enrolled. Univariate analysis showed that there were significant differences in triglyceride and cystatin C, as well as the proportions of male and hypertensive patients between the case group and the control group (all P<0.05). Multivariate logistic regression analysis showed that there was a significant independent negative correlation between the serum cystatin C and the risk of intracranial aneurysms (odds ratio 0.045, 95% confidence interval 0.011-0.184; P<0.001). Conclusion:Serum cystatin C may be an independent protective factor for the formation of intracranial aneurysms.

Objective:To investigate the risk factors for ruptured saccular intracranial aneurysms in young adults.Methods:Young patients with saccular intracranial aneurysm admitted to the First People's Hospital of Kashgar Region from February 2017 to November 2022 were retrospectively included. The demographic and clinical data from patients were collected. Risk factors of ruptured intracranial aneurysm were determined by univariate and multivariate regression analysis.Results:A total of 151 young patients with saccular intracranial aneurysm were enrolled, including 94 in the ruptured group (62.2%) and 57 in the unruptured group (37.8%). There were 70 males (46.4%) and 81 females (53.6%), with a median age of 41 years (interquartile range, 36-42 years). Univariate analysis showed that there were statistically significant differences in the proportion of male and triglycerides level between the ruptured group and the unruptured group (all P<0.05). Multivariate logistic regression analysis showed that males (odds ratio [ OR] 5.546, 95% confidence interval [ CI] 1.946-15.807; P=0.001), lower triglycerides ( OR 0.244, 95% CI 0.219-0.511; P<0.001), and aneurysms located in the anterior cerebral artery/anterior communicating artery ( OR 4.207, 95% CI 1.361-13.004; P=0.013) and middle cerebral artery ( OR 3.277, 95% CI 1.091-9.848; P=0.034) were the independent risk factors for intracranial aneurysm rupture. Conclusions:Male and lower triglycerides are the risk factors for ruptured saccular intracranial aneurysms in young adults. In addition, intracranial aneurysms located in the anterior cerebral artery/anterior communicating artery and middle cerebral artery are more prone to rupture.