1.Risk factor analysis of delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage
Jingpeng LIU ; Zhennan YE ; Xiangsheng ZHANG ; Lingyun WU ; Zihuan ZHANG ; Qiang CHEN ; Wei WU ; Lei MAO ; Xin ZHANG ; Chunhua HANG
Chinese Journal of Cerebrovascular Diseases 2017;14(1):10-14
Objective To investigate the clinical risk factors of delayed cerebral ischemia (DCI) in patients with aneurysmal subarachnoid hemorrhage (aSAH).Methods From January 2015 to April 2016,106 consecutive patients with aSAH treated with endovascular embolization at the Department of Neurosurgery,Nanjing General Hospital of Nanjing Military Command were enrolled retrospectively.The patients were divided into either a DCI group (n =34) or a non-DCI group (n =72) according to whether the occurrence of DCI.The general information of patients were collected,including sex,age,Hunt-Hess grade,modified Fisher grade,world federation of neurosurgical societies (WFNS) grade,acute cerebral edema,early (bleeding 1-3 d) hypoalbuminemia,and hypohemoglobinemia.Univariate and multivariate Logistic regression analyses were used to analyze the risk factors for occurrence of DCI.Results The incidence of DCI was 32.1% (34/106).The Hunt-Hess grade ≥ Ⅲ,modified Fisher grade ≥ Ⅲ,WFNS grade ≥ Ⅳ,acute cerebral edema,the incidences of hypoalbuminemia and hypohemoglobinemia in the DCI group were higher than those in the non-DCI group.There were significant differences between the 2 groups (all P < 0.05).There were no significant differences in the ratios of sex,age ≥ 55 years,hypertension,diabetes and hyponatremia between the 2 groups (all P > 0.05).In univariate analysis,the Hunt-Hess grade ≥ Ⅲ grade,modified Fisher grade ≥ Ⅲ,WFNS grade ≥ Ⅳ on admission,and hypoalbuminemia were used as the independent variables for multivariate analysis,the results showed that WFNS grade ≥ Ⅳ (OR,8.02;95 % CI 2.41-26.70),modified Fisher grades ≥ Ⅲ (OR,4.44;95% CI 1.38-14.32),and hypoalbuminemia at day 1-3 (OR,5.42;95% CI 1.40-20.76) were the independent risk factors for occurring DCI in patients with aSAH (all P < 0.05),and the Hunt-Hess grade ≥ Ⅲ was not the risk factor for occurring DCI in patients with aSAH (OR,1.86;95% CI 0.39-8.88,P > 0.05).Conclusion The patients with hypoalbuminemia,WFNS grade≥Ⅳ on adrnission,and modified Fisher grade ≥ Ⅲ may were the independent risk factors DCI after aSAH,and the clinical diagnosis and treatment should attach great importance to.
2. An analysis of the evaluation results of symptom checklist 90 for female medical workers
Zihuan WANG ; Yan YE ; Zhuang SHEN ; Jianguo ZHANG ; Baoping GUO ; Wenlan YU ; Li HU ; Guixin YU ; Ligeng SUN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2018;36(10):745-748
Objective:
To evaluate the mental health of female doctors and nurses.
Methods:
Investigat the psychologic status of female doctors and nurses using symptom checklist 90. And statistical software was applied to analyze results of symptom checklist 90.
Results:
There were differences in the score of SCL-90 between doctor and nurse groups, the difference was statistically significant (
3.The curative effect of interventional embolization of middle meningeal artery for chronic subdural hematoma
Fei DING ; Zhenbao LI ; Zihuan ZHANG ; Xintong ZHAO ; Jiaqiang LIU ; Feiyun QIN ; Liying HU ; Gang ZHOU
Journal of Interventional Radiology 2024;33(1):12-16
Objective To evaluate the safety and efficacy of interventional embolization of middle meningeal artery(MMA)for the treatment of chronic subdural hematoma(CSDH).Methods The clinical data of 14 patients with CSDH(17 lesions in total),who were treated with simple embolization of MMA at the Yijishan Hospital of Wannan Medical College of China between July 2021 and July 2022,were retrospective analyzed.After superselective catheterization of MMA using a microcatheter was accomplished,Onyx-18 glue,a liquid embolization agent,was used to embolize the main trunk and the branches of MMA.Imaging follow-up was adopted at 30 days and 90 days after discharge from hospital to evaluate the absorption of hematoma,and the improvement of clinical symptoms was defined as the modified Rankin Scale score(mRS)being decreased≥1 point from the baseline value.Results Successful embolization of MMA was accomplished for all the 17 lesions in the 14 patients,and no procedure-related complications occurred.During the follow-up period,the clinical symptoms and signs were remarkably improved in all patients.The postoperative 90-day hematoma volume was reduced by more than 90%in 11 patients and by more than 40%in one patient,and in 2 patients the postoperative 30-day hematoma volume was reduced by more than 30%.Complete absorption of hematoma was seen in 11 patients,and partial absorption of hematoma was observed in 3 patients.Conclusion For the treatment of newly-developed or recurrent CSDH,interventional embolization of MMA is clinically safe and effective.(J Intervent Radiol,2024,32:12-16)
4.Guidelines for clinical diagnosis and treatment of nontuberculous mycobacterial disease in kidney transplant recipients
Qipeng SUN ; Rongchun JU ; Zihuan LUO ; Qiquan SUN ; Weijie ZHANG ; Hongfeng HUANG
Organ Transplantation 2024;15(5):712-725
In recent years, the infection of nontuberculous mycobacterium (NTM) has been increasing rapidly, which captivates widespread attention. The infection rate of NTM in kidney transplant recipients is more significantly elevated due to the impact of immunosuppressive drugs and other factors. However, due to the lack of sufficient research evidence, relevant guidelines for the diagnosis and treatment of NTM after kidney transplantation are still lacking. To further standardize the diagnosis and treatment of NTM disease in kidney transplant recipients, and deepen medical practitioners' understanding and diagnosis and treatment of NTM disease in organ transplantation in China, Branch of Organ Transplantation of Chinese Medical Association organized relevant experts to formulate this guideline by referring to the latest edition of “An official ATS/IDSA statement: diagnosis, treatment, and prevention of nontuberculous mycobacterial diseases”, “Expert Consensus on the Diagnosis and Treatment of Nontuberculous Mycobacterial Disease”, and “Technical Specification for Clinical Diagnosis and Treatment of Nontuberculous Mycobacteria in Organ Transplant Recipients (2019 Edition) ”, and considering the characteristics of kidney transplant recipients.
5.Biomechanical analysis of Magic screw fixation for acetabular posterior column fracture.
Haowei ZHANG ; Zihuan XU ; Ying LIU ; Yongqin WANG ; Pengfei LI ; Hongmin CAI ; Ming NI
Journal of Biomedical Engineering 2022;39(4):672-678
This study aims to analyze the biomechanical stability of Magic screw in the treatment of acetabular posterior column fractures by finite element analysis. A three-dimensional finite element model of the pelvis was established based on the computed tomography (CT) and magnetic resonance imaging (MRI) data of a volunteer and its effectiveness was verified. Then, the posterior column fracture model of the acetabulum was generated. The biomechanical stability of the four internal fixation models was compared. The 500 N force was applied to the upper surface of the sacrum to simulate human gravity. The maximum implant stresses of retrograde screw fixation, single-plate fixation, double-plate fixation and Magic screw fixation model in standing and sitting position were as follows: 114.10, 113.40 MPa; 58.93, 55.72 MPa; 58.76, 47.47 MPa; and 24.36, 27.50 MPa, respectively. The maximum stresses at the fracture end were as follows: 72.71, 70.51 MPa; 48.18, 22.80 MPa; 52.38, 27.14 MPa; and 34.05, 30.78 MPa, respectively. The fracture end displacement of the retrograde tension screw fixation model was the largest in both states, and the Magic screw had the smallest displacement variation in the standing state, but it was significantly higher than the two plate fixations in the sitting state. Magic screw can satisfy the biomechanical stability of posterior column fracture. Compared with traditional fixations, Magic screw has the advantages of more uniform stress distribution and less stress, and should be recommended.
Biomechanical Phenomena
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Bone Plates
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Bone Screws
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Finite Element Analysis
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Fracture Fixation, Internal/methods*
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Fractures, Bone/surgery*
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Humans
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Spinal Fractures