Search

Jinlong Yuan,1,* Chenlei Huang,2,* Zhenbao Li,1 Xiaochun Jiang,1 Xintong Zhao,1 Niansheng Lai,1 Dayong Xia,1 Degang Wu,1 Bingbing Zhang,1 Xuanzhi Wang,3 Xinggen Fang1 1Department of Neurosurgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, People’s Republic of China; 2Department of Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, People’s Republic of China; 3Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People’s Republic of China*These authors contributed equally to this workCorrespondence: Xinggen FangDepartment of Neurosurgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Zheshan West Road 2, Wuhu, 241001, People’s Republic of ChinaEmail 18805536056@163.comObjective: Hemodynamic parameters are associated with the recurrence of intracranial aneurysms (IAs). Studies showed that high velocity and wall shear stress (WSS) were associated with IAs recurrence after endovascular treatment; nevertheless, factors such as small sample size, locations of IAs, and types of IAs (ie, sidewall or bifurcation) were neglected. The purpose of this study was to identify the hemodynamic characteristics associated with recurrence of middle cerebral artery bifurcation aneurysms (MCABAs) after total embolization by the method of computer fluid dynamics (CFD).Methods: Following inclusion criteria, we included 92 MCABAs treated with coils only after total embolization from January 2014 to January 2019. We segmented into recurrent and non-recurrent groups according to follow-up digital subtraction angiography (DSA). The MCABA models, including pre-operatively and immediate post-operatively, were reconstructed using 3D-DSAs. The hemodynamic parame

Yang Yao,1,2,* Xinggen Fang,1,* Jinlong Yuan,1 Feiyun Qin,1 Tao Yu,1 Dayong Xia,1,3 Zhenbao Li,1 Niansheng Lai1,3 1Department of Neurosurgery, First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui Province, People’s Republic of China; 2Department of Nursing, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui Province, People’s Republic of China; 3Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution (Wannan Medical College), Wuhu, 241001, Anhui Province, People’s Republic of China*These authors contributed equally to this workCorrespondence: Niansheng Lai; Zhenbao LiDepartment of Neurosurgery, First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), 2 West Zheshan Road, Wuhu, 241001, Anhui Province, People’s Republic of ChinaTel +86-15155308793Fax +86-05535739594Email mlns@wnmc.edu.cn; zhenbaoli123@126.comObjective: Aneurysmal subarachnoid hemorrhage (aSAH) is a severe form of stroke characterized by high rates of mortality and disability. Identifying circulating biomarkers is helpful to improve outcomes. In this study, for the first time, we identify interleukin-6 (IL-6) in cerebrospinal fluid (CSF) small extracellular vesicles (sEVs) as potential biomarkers for prognosis of aSAH.Methods: We extracted small extracellular vesicles from the CSF of 103 aSAH patients and 40 healthy controls in a prospective observational study. Subsequently, we measured IL-6sEVs levels using an enzyme-linked immunosorbent assay. Results were statistically analyzed to determine the function of IL-6sEVs for disease monitoring of aSAH.Results: CSF IL-6 sEVs showed distinct pattern differences between healthy controls and aSAH patients. The concentration of IL-6sEVs in CSF is significantly correlated with the severity of aSAH patients. The areas under the rece

Jinlong Yuan,1,* Chenlei Huang,2,* Niansheng Lai,1 Zhenbao Li,1 Xiaochun Jiang,1 Xuanzhi Wang,1 Xintong Zhao,1 Degang Wu,1 Jiaqiang Liu,1 Dayong Xia,1 Xinggen Fang1 1Department of Neurosurgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, People’s Republic of China; 2Department of Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, People’s Republic of China*These authors contributed equally to this workCorrespondence: Xinggen Fang Email 18805536056@163.com; xiady1981@163.comObjective: Hemodynamic factors are thought to play important roles in the pathogenesis, progression, and rupture of cerebral aneurysms. Previous hemodynamic studies have been based on comparisons between post-ruptured and unruptured aneurysms. Nevertheless, changes of aneurysm morphology after rupture render these results unreliable. Moreover, pressure, age, gender, and the morphology of the parent artery also influence these results. Therefore, in the present study, we identified hemodynamic and morphological characteristics of aneurysms prior to rupture using twelve mirror aneurysms.Materials and Methods: From our database, we retrospectively analyzed twelve mirror aneurysms (MANs) prior to rupture. Each mirror aneurysm was divided into the prior to rupture or the unruptured group. Patient-specific models were reconstructed from three-dimensional (3D) images of all patients. Hemodynamic and morphological factors were analyzed and compared.Results: Compared with the unruptured side of MANs, aneurysms prior to rupture were significantly larger and significantly more irregular in shape; they also had significantly higher aspect ratio (AR), size ratio (SR), undulation index (UI), ellipticity index (EI), percentage of low wall shear stress area (LSA) and significantly lower normal wall shear stress (NWSS). The oscillatory shear index (OSI) and nonsphericity index (NSI) in the aneurysms prio