2.Finite Element Simulation of Double-Stent Parallel Thrombectomy at Y-Shaped Bifurcation of Internal Carotid Artery
Kejia ZHAO ; Yunhan CAI ; Wentao YAN ; Shengzhang WANG
Journal of Medical Biomechanics 2023;38(3):E465-E471
Objective To study the process of single stent and double-stent thrombectomy at the Y-shaped bifurcation of the ideal internal carotid artery by finite element simulation, analyze the stent-thrombus-vessel interaction during the thrombectomy process based on the simulation results, and provide guidance for improving the effect of stent thrombectomy at the bifurcation. Methods The CAD software was used to build the model and the finite element analysis software was used to simulate the process of single stent and double-stent thrombectomy. Results Thrombectomy was unsuccessful in single stent model and successful in double-stent model, and the maximum stress of thrombus during embolus retrieval was twice that of single stent, the maximum strain was 1.12 times that of single stent, and the maximum contact pressure on the surface of vessel was approximately twice that of single stent. Conclusions Double Solitaire stents can effectively prevent thrombus displacement at the bifurcation and successfully retrieve the thrombus, but there is a risk of fracture due to the high stress level in the middle section of the thrombus. The contact pressure of the vessel on the anterior artery side is higher during thrombectomy, and the risk of vessel damage is greater. Therefore, it is necessary to optimize the design of the stent-retriever to improve its flexibility.
3.Development of a Chinese version of the Stress Adaption Scale and the assessment of its reliability and validity among Chinese patients with multimorbidity.
Yujia FU ; Jingjie WU ; Binyu ZHAO ; Chuyang LAI ; Erxu XUE ; Dan WANG ; Manjun WANG ; Leiwen TANG ; Jing SHAO
Journal of Zhejiang University. Medical sciences 2023;52(3):361-370
OBJECTIVES:
To develop a Chinese version of the Stress Adaption Scale (SAS) and to assess its reliability and validity among Chinese patients with multimorbidity.
METHODS:
The Brislin model was used to translate, synthesize, back-translate, and cross culturally adapt the SAS. A total of 323 multimorbidity patients selected by convenience sampling method from four hospitals in Zhejiang province. The critical ratio method, total question correlation method, and graded response model (item characteristic curve and item discrimination) were used for item analysis. Cronbach's alpha coefficient and split-half reliability were used for the reliability analysis. Content validity analysis, structural validity analysis, and criterion association validity analysis were performed by expert scoring method, confirmatory factor analysis, and Pearson correlation coefficient method, respectively.
RESULTS:
The Chinese version of the SAS contained 2 dimensions of resilience and thriving, with a total of 10 items. In the item analysis, the critical ratio method showed that the critical ratio of all items was greater than 3.0 (P<0.001); the correlation coefficient method showed that the Pearson correlation coefficients for all items exceeded 0.4 (P<0.01). The graded response model showed that items of the revised scale exhibited distinct item characteristic curves and all items had discrimination parameters exceeding 1.0. In the reliability analysis, Cronbach's alpha coefficient of the revised Chinese version of the SAS scale was 0.849, and the split-half reliability was 0.873. In the validity analysis, the item-level content validity index and scale-level content validity index both exceeded 0.80. In the confirmatory factor analysis, the revised two-factor model showed satisfactory fit indices (χ2/df=3.115, RMSEA=0.081, RMR=0.046, GFI=0.937, AGFI=0.898, CFI=0.936, TLI=0.915). In the criterion-related validity analysis, the Chinese version of the SAS score was negatively correlated with the Perceived Stress Scale and the Treatment Burden Questionnaire, with correlation coefficients of -0.592 and -0.482, respectively (both P<0.01).
CONCLUSIONS
The Chinese version of the SAS has good reliability and validity, which can be used to evaluate the stress adaption capacity among multimorbidity patients in China, and provides a reference for developing individualized health management measures.
Humans
;
Adaptation, Psychological
;
Asian People
;
China
;
Multimorbidity
;
Reproducibility of Results
;
Stress, Psychological/psychology*
;
Surveys and Questionnaires
;
Translating
;
Cross-Cultural Comparison
4.Analysis of ZEB2 gene variation in two patients with Mowat-Wilson syndrome.
Xuanlan CAO ; Xiaoli DENG ; Zhuo ZOU ; Chunming LIU ; Yiwu ZHAO ; Jian REN ; Yun LIU
Chinese Journal of Medical Genetics 2022;39(2):152-156
OBJECTIVE:
To identify pathogenic variants in two patients with suspected for Mowat-Wilson syndrome (MWS).
METHODS:
Genomic DNA was extracted from peripheral blood samples of the patients and his family members, and gene variants were analysis by Trio-whole exome sequences and copy number variation sequencing.
RESULTS:
Patient 1 was found to carried a de novo heterozygous c.2769C>A (p.Y923*) nonsense variant of ZEB2 gene. The variant was not found in his healthy parents and sister. Patient 2 carried a de novo heterozygous frameshift variant of the ZEB2 gene, namely c.315delC (p.A105Afs*3), which has not been previously reported. Both variants were predicted to be pathogenic and can lead to premature occurrence of stop codons.
CONCLUSION
The heterozygous c.2769C>A (p.Y923*) and c.315delC (p.A105Afs*3) variants of the ZEB2 gene probably underlay the pathogenesis in the two patients. Gene testing has facilitated confirmation of the diagnosis and genetic counselling.
DNA Copy Number Variations
;
Facies
;
Hirschsprung Disease
;
Humans
;
Intellectual Disability/genetics*
;
Microcephaly/genetics*
;
Zinc Finger E-box Binding Homeobox 2/genetics*
5.Rates and influencing factors of hospitalization after diagnosis among HIV infection cases in Yinzhou district of Ningbo, 2012-2020.
Zi Hui LI ; Qi ZHAO ; De Guang GONG ; Ye Xiang SUN ; Peng SHEN ; Hong Bo LIN ; Na HE
Chinese Journal of Epidemiology 2022;43(4):541-547
Objective: To understand the hospitalization rates and influencing factors after diagnosis among HIV infection cases, based on real-world data in Yinzhou district of Ningbo. Methods: A retrospective cohort study was conducted based on the databases of National AIDS Comprehensive Response Information Management System and Yinzhou Health Information Platform. The information about the following-up results, antiviral treatment data, electronic records of inpatient of the HIV cases reported during 2012-2020 were collected to analyze the rates, causes and influencing factors of hospitalization. Results: Among the 763 HIV infection cases reported in Yinzhou from 2012 to 2020, the hospitalization rate was 6.95% (53/763), and the number of inpatient was 2.59 per 100 person years. The hospitalization rate and the number of hospitalization per 100 person years in HIV infection cases were 3.16% (10/316) and 0.81 in those aged <30 years, 6.07% (15/247) and 1.59 in those aged >30 years, 7.86% (11/140) and 4.05 in those aged >45 years and 28.33% (17/60) and 17.40 in those aged ≥60 years respectively. Logistic multivariate regression analysis indicated that being aged ≥60 years was the influencing factor for hospitalizations in HIV infection cases (аOR=14.44, 95%CI:3.57-58.46). The hospitalization rates due to AIDS related diseases, cardiovascular diseases and metabolic diseases, and other diseases were 1.83% (14/763), 1.05% (8/763), and 3.93% (30/763), respectively. Conclusions: The hospitalization burden due to HIV infection was still mainly caused by those aged ≥60 years in Yinzhou, similar to that in general population and less proportion of hospitalizations were due to AIDS related diseases. The overall increase of hospitalizations due to AIDS was not obvious in Yinzhou.
Acquired Immunodeficiency Syndrome/epidemiology*
;
HIV Infections/therapy*
;
Hospitalization
;
Humans
;
Retrospective Studies
6. Effect of single-chamber balloon combined with dinoprostone suppository on cervical ripening induced by full-term maternal delivery
Wenlong ZHAO ; Jiali YU ; Zhipeng CHEN ; Zhiying YU
Chinese Journal of Primary Medicine and Pharmacy 2019;26(24):2984-2987
Objective:
To investigate the effects of single-chamber balloon combined with dinoprostone suppository on the progestation of the cervix in full-term maternal delivery.
Methods:
From January 2017 to December 2018, 120 cases of full-term maternal women admitted to the Central Hospital of Yiwu were selected.According to the random number table method, all women were divided into control group (60 cases) and observation group (60 cases). The control group was given a single-cavity balloon to promote cervical ripening.The observation group received single-chamber balloon combined with dinoprostone to promote cervical ripening.The effects of maternal cervical ripening were observed.
Results:
The total effective rate of maternal cervical ripening in the observation group (95.00%) was significantly higher than that in the control group (81.67%), and the difference was statistically significant (χ2=6.135,
7. Efficacy of pranoprofen combined with 0.3% hyaluronic acid sodium eye drops in the treatment of dry eye after cataract surgery
Jing ZHAO ; Weiwei CHEN ; Zhongping JIN
Chinese Journal of Primary Medicine and Pharmacy 2019;26(24):3011-3014
Objective:
To study the effect of pranoprofen combined with 0.3% hyaluronic acid sodium eye drops on dry eye after cataract surgery.
Methods:
From July 2016 to June 2018, 80 patients with dry eye after cataract surgery in the Traditional Chinese Medicine Hospital of Yiwu were selected study objects, and they were randomly divided into control group and observation group by double blind random assignment method, with 40 cases in each group.The control group was treated with pranoprofen eye drops alone, while the observation group was treated with pranoprofen eye drops combined with 0.3% hyaluronic acid sodium eye drops.The lacrimal gland secretion, corneal fluorescein staining (FL) and corneal rupture time (BUT) were observed before and after treatment in the two groups.The improvement of dry eye symptoms, ocular surface signs score and life satisfaction were observed in the two groups.
Results:
There were no statistically significant differences in lacrimal gland secretion test, FL and BUT test before treatment between the two groups (all
8. Progress of clinical and genetic research on distal hereditary motor neuropathy
Chinese Journal of Medical Genetics 2019;36(11):1136-1140
Distal hereditary motor neuropathy (dHMN) is a group of clinically and genetically heterogeneous disorders characterized by progressive distal weakness and atrophy. The onset of dHMN is at mid-adulthood or early childhood, and the symptoms are mainly present in the lower limbs. Besides weakness and atrophy of distal limb muscles, some patients may develop bulbar paralysis, and some may also present with mild sensory disturbance. Decreased or absent tendon reflexes may be discovered. Electromyography may show neurogenic damages. Muscular biopsy may reveal neurogenic amyotrophy. An increasing number of genes have been associated with dHMN. Pathogenesis of dHMN may include formation of protein aggregates, impairment of autophagy pathway, RNA processing, translation synthesis, axonal transport, endoplasmic reticulum stress, calcium channel and neuroprotection. A review for recent progress made on clinical characterization and molecular genetics of dHMN is provided.
9.Arthroscopic treatment of tibial intercondylar ridge avulsion fracture with double-root line double tunnel fixation technique.
Guo-Lin WU ; Sheng-Chun ZHAO ; Hong-Wei CHEN ; Xiang-Rong JI ; Chao-Li CHEN ; Jiang-Long ZHU ; Min-Feng HUANG
China Journal of Orthopaedics and Traumatology 2018;31(7):621-626
OBJECTIVETo discuss arthroscopic technique of double-root line double tunnel fixation for tibial intercondylar ridge avulsion fracture and its short-term followvup observational results.
METHODSFrom May 2012 to June 2017, 21 cases of tibial intercondylar ridge avulsion fractures were treated with arthroscope double line double tunnel. Among the patients, 16 males and 5 females were ranging in age from 17 to 45 years old, with an average of 29.6 years old, and injury to surgery time 3 to 6 days, with an average of 3.6 days. All the patients underwent arthroscopic exploration, fracture reduction, double root line fixation. The knee function was assessed at 3 and 6 months postoperatively using the Lysholm knee score, and the healing and resection of the patients were followed by X-ray examination.
RESULTSAll patients were followed up for 7 to 23 months, with an average of 12.8 months. All patients after fracture were bone healing, knee activity were gained their previous normal levels (ranged, 0° to 130 °), and no limb dysfunction. The average scores of Lysholm knee were(93.52±7.10) and(95.95±6.34) points in 3 months and 6 months after operation.
CONCLUSIONSArthroscopic treatment of tibial intercondylar ridge avulsion fractures with double root line is simple and reliable, and can provide an ideal internal fixation method for tibial intercondylar ridge avulsion fractures.
10. Research progress in Madelung′s disease
Chunye CHEN ; Minxia ZHANG ; Wanyi ZHAO ; Qingqing FANG ; Xiaowei WANG ; Weiqiang TAN
Chinese Journal of Plastic Surgery 2018;34(6):493-496
Madelung′s disease is a rare lipid metabolic disorder with unclear mechanism, characterized by the formation of diffuse uncapsulated lipomas in face, neck, shoulder and other body areas. This disease mainly affect middle-aged male, and is related to alcohol abuse. The treatment nowadays is only palliative surgery with a high recurrence rate, including lipectomy and liposuction. Both of them have advantages and disadvantages.

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