Objective To design a vehicle-mounted X-ray diagnosis simulation training system based on the field X-ray diagnostic vehicle to solve the problems during its training and utilization.Methods The field X-ray diagnostic vehicle had its internal and external structure analyzed,and was divided into several functional modules.The technologies of computer programming and database were used for the simulation of the modules.An example was given to simulate the operating process of the vehicle by establishing traumatic condition model,war injury image library and etc.esults The system developed realized the simulation training of the vehicle,and the trainee gained feedback after simulation as references.Conclusion The system implements informatized training of the field X-ray diagnostic vehicle,shortens the training period,decreases the training cost and increases the training efficacy.

Objective To investigate clinical efficacy and safety of the memantine and donepezil in the treatment of moderate to severe Alzheimer's disease,in order to provide the basis for clinical treatment.Methods One hundred and twelve cases of moderate to severe Alzheimer's disease patients were given memantine plus donepezil(observation group) ,and single use of memantine treatment(control group), and the treatment for 24 weeks.Respectively before and after treatment, Mini Mental State Scale (MMSE), Alzheimer' s disease assessment scale (ADAS-cog), Alzheimer' s disease collaborative learning, daily life ability questionnaire (ADCS-ADL) ,and neuropsychological questionnaire (NPI) score, and adverse reactions were observed in the process of two kinds of therapy, the efficacy and safety of two kinds of treatment methods were evaluated.Results After treatment, the patients in observation group with MMSE, ADAS-cog, ADL and NPI evaluation results were (12.1 ± 2.1), (32.9 ± 8.3), (33.4 ± 5.0), (6.1 ± 3.1) scores, significantly improved compared with scoring (9.9±2.8), (46.2±7.6), (42.1±6.0), (10.5±2.9) scores before treatment,and the differences were statistically significant (t =2.138,-2.411,2.398, 2.107 respectively, P ＜ 0.05).The control group after treatment in patients with MMSE, ADAS-cog, ADL and NPI evaluation results were (12.3±2.6), (33.1 ±7.2), (35.1 ±6.6), (6.7 ± 2.9) scores, significantly improved compared with scoring 11.0 ± 2.5,44.9 ± 6.9,42.2 ±6.6,10.9 ± 3.5 before treatment, and the difference had statistical significanc (t =2.101,-2.033,2.105, 2.400 respectively, P＜0.05).After treatment, the difference of patients in the two groups of MMSE, NPI score had statistical significance(t =2.553,2.176, P＜0.05).The adverse reactions in two group respectively were 32.14％ (18/56) and 26.79％ (15/56), less difference was no statistical significance (P＞0.05).Vital signs checks,regular laboratory examination and ECG examination showed no obvious abnormalities.Conclusion Memantine combined with donepezil in the treatment of moderate and severe AD patients is superior to the singleeffect of memantine, and long-term use will not increase the risk of adverse reactions, which is safe and effective in the combined application.

Objective To evaluate the effect of unipolar versus bipolar hemiarthroplasty for treatment of femoral neck fracture in the elderly Methods Related randomized controlled trials (RCTs) and quasi-randomized controlled trials (qRCTs) were searched from computerized databases MEDLINE,EMBASE,Cochrane Library,and CBM disc.Additional studies were identified through hand searches of 10 domestic journals.Time period of the search was from 1966 to June 2012.RevMan 4.2.8 software was used for data analysis.Results A total of 7 RCTs and 3 qRCTs were included.In this meta analysis,bipolar hemiarthroplasty was associated with better hip function compared with unipolar hemiarthroplasty at postoperative 6 months (RR =0.74,95％ CI0.62-0.88,P ＜ 0.01).However,the two procedures revealed no significant differences in terms of postoperative one-year dislocation rate (RR =1.01,95％ CI0.54-1.89,P ＞ 0.05),reoperation rate (RR =1.13,95％ CI 0.74-1.72,P ＞ 0.05),major complication incidence (except for dislocation) (RR =1.27,95％ CI 0.74-2.18,P ＞ 0.05),and postoperative 2-year mortality (RR1.16,95％ CI 0.73-1.87,P ＞ 0.05).Conclusion Bipolar hemiarthroplasty is preferable to unipolar hemiarthroplasty for hip function improvement,but postoperative one-year dislocation rate,reoperation rate,major complication incidence (except for dislocation),and postoperative twoyear mortality are similar for the two procedures.

BACKGROUND:Tissue flossing is a new injury prevention tool and auxiliary exercise training strategy.Tissue flossing can increase joint range of motion,improve athletic performance,and relieve pain,and is increasingly widely used in the field of sports and rehabilitation. OBJECTIVE:To review the mechanism of tissue flossing and its application in sports and rehabilitation to provide a reference for follow-up research. METHODS:"Tissue flossing;compression tissue flossing;floss band;voodoo flossband;blood flow restriction;shearing of fascia;musculoskeletal rehabilitation;sport injury"were used as Chinese and English search terms to search on the databases of CNKI,WanFang,VIP,PubMed and EBSCO databases.Relevant articles from January 2000 to October 2022 were retrieved,and 86 articles were finally included according to inclusion and exclusion criteria. RESULTS AND CONCLUSION:Tissue flossing intervention can improve lower limb joint motion,improve sprint and jump performance,promote joint injury rehabilitation,and relieve pain subjectively.However,tissue flossing intervention did not improve the range of motion of the upper limb.There is still controversy on the acute enhancement of lower limb muscle strength.It has a good tendency to improve lower limb balance and stability and improve mental state,but more studies are needed to confirm.The possible mechanisms of tissue flossing intervention are mainly fascia shear,pain gating,blood flow restriction and reperfusion,and compression.Tissue flossing is a useful treatment option that can provide important contributions in the future in the areas of sports training,sports injury prevention and rehabilitation,but more long-term in-depth studies are needed.

PURPOSE: Details of patients hospitalized for asthma exacerbation in mainland China are lacking. To improve disease control and reduce economic burden, a large sample survey among this patient population is indispensable. This study aimed to investigate the clinical characteristics and outcomes of such patients.METHODS: A retrospective study was conducted on patients hospitalized for asthma exacerbation in 29 hospitals of 29 regions in mainland China during the period 2013 to 2014. Demographic features, pre-admission conditions, exacerbation details, and outcomes were summarized. Risk factors for exacerbation severity were analyzed.RESULTS: There were 3,240 asthmatic patients included in this study (57.7% females, 42.3% males). Only 28.0% used daily controller medications; 1,287 (39.7%) patients were not currently on inhaled corticosteroids. Acute upper airway infection was the most common trigger of exacerbation (42.3%). Patients with severe to life-threatening exacerbation tended to have a longer disease course, a smoking history, and had comorbidities such as hypertension, chronic obstructive pulmonary disease (COPD), and food allergy. The multivariate analysis showed that smoking history, comorbidities of hypertension, COPD, and food allergy were independent risk factors for more severe exacerbation. The number of patients hospitalized for asthma exacerbation varied with seasons, peaking in March and September. Eight patients died during the study period (mortality 0.25%).CONCLUSIONS: Despite enhanced education on asthma self-management in China during recent years, few patients were using daily controller medications before the onset of their exacerbation, indicating that more educational efforts and considerations are needed. The findings of this study may improve our understanding of hospital admission for asthma exacerbation in mainland China and provide evidence for decision-making.
Adrenal Cortex Hormones ; Asthma ; China ; Comorbidity ; Disease Progression ; Education ; Female ; Food Hypersensitivity ; Hospitalization ; Humans ; Hypertension ; Inpatients ; Medication Adherence ; Mortality ; Multivariate Analysis ; Pulmonary Disease, Chronic Obstructive ; Retrospective Studies ; Risk Factors ; Seasons ; Self Care ; Smoke ; Smoking