1.Relationship between the prevalence rate of hypertension and sleeping time in Chongqing area
Xiaolan ZHAO ; Yalan ZHANG ; Hong CHEN
Chongqing Medicine 2015;(30):4262-4264
Objective To investigate the prevalence rate of hypertension ,overweight ,obesity and obesity/overweight ,thus to explore the relationship between hypertension and sleeping time .Methods Healthy individuals having physical examinations in Health Management Center of Southwest Hospital were randomly selected to take questionnaire and physical examination ,and then we analyzed the correction relationship of hypertension and sleeping time .Results The prevalence of overweigh ,obesity ,hyperten‐sion and perhypertension was 36 .68% ,11 .36% ,22 .14% and 33 .43% respectively .The prevalence rate of hypertension for men was 2 fold as that of women .There was a negative correlation between hypertension and sleeping time .The prevalence of stage 2 hypertension tended to U.People who sleep time less than 5 h have more risk for Isolated systolic hypertension than who sleeping 6 h .Conclusion There is a high risk of hypertension and stage 2 and stage 3 hypertention for people whose sleep time less than 5 h or more than 10 h .
2.Simultaneous Determination of Zinc and Cadmium in Radix Salvia Miltiorrhiza by Carbon Fiber Electrode with Stripping Voltammetry
Song LI ; Guolan LI ; Yuyin LONG ; Yalan CHEN
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(12):2746-2749
This study was aimed to develop a simultaneous determination of zinc and cadmium with carbon fiber electrode by linear sweep stripping voltammetry. Effects of analytical base solution, accumulation potential, ac-cumulation time and scanning velocity were also investigated on the determination. The results showed that in 1 mol·L-1 H2SO4 medium solution, zinc and cadmium had good electrochemical response on the carbon fiber electrode and appeared sensitive anodic stripping peaks at-0.97 V and-0.77 V, respectively. The anodic stripping peak cur-rents and concentrations of zinc and cadmium showed good linear relationships, with correlation coefficients R2 of 0.996 5 and 0.995 4, respectively. The detection limits of zinc and cadmium (S/N=3) were 1.5×10-9 mol·L-1 and 1.0×10-10 mol·L-1, respectively. The average recoveries of zinc and cadmium were 98.9%and 98.1%with the rela-tive standard deviations (RSD) of 2.72%and 2.45%(n=6), respectively. It was concluded that the method of simul-taneous determination of zinc and cadmium with carbon fiber electrode was simple, sensitive and accurate.
3.Clinical Features of Eosinophilic Gastroenteritis
Chuantao TU ; Pu CHEN ; Yalan LIU ; Hongchun LIU ; Xizhong SHEN
Chinese Journal of Gastroenterology 2014;(9):556-559
Background:The clinical presentation of eosinophilic gastroenteritis( EG)is nonspecific and has not received much concern by physicians and pathologists. The diagnosis of EG was delayed in many cases. Aims:To explore the clinical features of EG. Methods:The clinical,laboratory,endoscopic and radiologic features and treatment in patients who were diagnosed as EG from October 2011 to September 2013 in Zhongshan Hospital, Fudan University were analyzed retrospectively. Results:Median age of 10 EG patients was 41. 9 years. Four patients had a history of allergy or asthma. The time from onset to diagnose was 25 days on average. The most common symptoms were abdominal pain with bloating, diarrhea or vomiting. Eight patients had hypereosinophilia. Abdominal CT revealed uniform edema or stratified thickness of intestinal wall or ascites in 7 patients. Endoscopy revealed erythema,edema and erosion in antrum,duodenum or jejunum in 6 patients. All cases were confirmed as having eosinophilic infiltration by mucosal biopsy or examination of ascites. Seven patients were successfully treated with corticosteroid. One patients experienced relapse after discontinuing corticosteroids during following up. Conclusions:EG may be more common than previously recognized and should be considered in the differential diagnosis of unexplained abdominal pain with peripheral eosinophilia or uniform edema or stratified thickness of intestinal wall. Multiple biopsies in multiple sites including descending duodenum and pathological examination for finding eosinophil infiltration are the keys to confirm the diagnosis. Corticosteroids are effective in relieving symptoms and improving eosinophilia.
4.Visualization Analysis of Telemedicine Researches Applying CiteSpace Ⅱ
Lili SHI ; Yalan CHEN ; Huiqun WU ; Kui JIANG ; Jiancheng DONG
Journal of Medical Informatics 2016;37(6):57-62
By using the software CiteSpace Ⅱ,the paper makes a quantitative analysis and interpretation of research literatures on telemedicine in SCIE of Web of Science from three perspectives,namely the research hotspots,knowledge base and research fronts.The research hotspots of telemedicine mainly include tele-diagnosis,tele-monitoring and evaluation of the application effects of telemedicine.It sets forth key literatures representing the knowledge base one by one and reveals that most of them focus on clinical applications.The analysis of burst terms indicates that more attention has been paid to tele-monitoring and distance education of chronic diseases in recent years and mobile technology is one of the greatest driving forces for the development of telemedicine at the present stage.
5.Method of detection of negative terminology in Chinese electronic medical record.
Yuanpeng ZHANG ; Jianchen DONG ; Danmin QIAN ; Kui JIANG ; Yalan CHEN ; Li WANG
Journal of Biomedical Engineering 2015;32(1):82-85
The method for detecting the negative terms in Chinese electronic medical record (EMR) is useful in providing evidence for constructing concept index. In this respect, we adopted an improved method which combined maximum matching with mutual information in order to extract terms in EMRs. This method can overcome the influence of overlay ambiguity. In addition, for the determination of negative semantic, we also adopted an improved method which combined rule-based method with word co-occurrence. This new method can reduce the probability of appearance of false positive terms caused by punctuation input errors. The result showed that the negative predictive value is 7.85% higher than the rule-based method.
China
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Electronic Health Records
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Probability
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Semantics
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Terminology as Topic
7.Analysis of polysomnography of normal tension glaucoma patients with mild cognitive impairment
Jieqiong LIU ; Liping WANG ; Yang SHEN ; Xuechuan DONG ; Chun ZHANG ; Yalan GU ; Chen DU ; Yu SONG
Chinese Journal of Nervous and Mental Diseases 2015;(9):536-541
Objective To assess the characteristic of normal tension glaucoma (NTG) patients with mild cogni?tive impairment (MCI). Methods This study included twenty-six cases of normal tension glaucoma patients who were diagnosed at ophthalmology department of Peking University Third Hospital. All the participants were examined by us?ing the scales of Montreal Cognitive Assessment (MoCA), mini-mental state examination(MMSE), clinical dementia rat?ing (CDR), activities of daily living (ADL), Hamilton anxiety scale (HAMA), Hamilton depression scale (HAMD), Pitts?burgh Sleep Quality Index (PSQI) and polysomnography (PSG). The patients were then divided into Group with MCI (16 cases) and Group without MCI (19 cases). Results There was no difference between the two groups in gender, age, edu?cation, depression, anxiety and body mass index (BMI) (P>0.05), but significant difference in MoCA scores (P<0.05). The incidence rate of sleep disorder of PSQI in was 28.6%(10/35 patients) of total NTG patients, 43.8%(7/16 patients) in Group with MCI, and 15.8% (3/19 patients) in Group without MCI, respectively. The PSQI score was higher in Group with MCI than in Group without MCI (P<0.05). Sleep efficiency was higher in Group without MCI than in Group with MCI (P<0.05), but no difference was found between the two groups in six other indexes of PSQI (P>0.05). The in?cidence rate of sleep structure disorder of PSG in all the NTG patients was 85.7%(30/35 patients), 87.5%(14/16 pa?tients) in Group with MCI, and 84.2%(16/19 patients) in Group without MCI. Sleep time of NREM-N3 was significant?ly shorter in Group with MCI than in Group without MCI (P<0.05), but no difference was found between those groups in total sleep time, sleep efficiency, sleep latency and REM time (P>0.05). Conclusion NTG patients with mild cogni?tive impairment are more prone to sleep disorders, especially sleep structure disturbance and short NREM-N3 time may affect cognitive function.
8.System Evaluation and Analysis on Intelligent Health Application
Xueyi WEI ; Yang CUI ; Hailing ZHOU ; Yuanpeng ZHANG ; Kui JIANG ; Jiancheng DOGN ; Yalan CHEN
Journal of Medical Informatics 2017;38(2):8-12,32
Using the concept and method of evidence-based medicine,the paper systematically analyzes the functions and shortage of intelligent health Application (App) in disease diagnosis,treatment and self-management,and describes the functions of health and disease management App,so as to promote the development of App and enable App to better assist in health management.
9.Early esophageal cancer or precancerous lesions treated by endoscopic resection: a single-center retrospective study of 368 cases
Yalan LIU ; Dongxian JIANG ; Yingyong HOU ; Jieakesu SU ; Haiying ZENG ; Jie HUANG ; Yifan XU ; Chen XU
Chinese Journal of Clinical and Experimental Pathology 2017;33(6):606-612
To investigate the clinicopathological features as well as prognosis of early esophageal squamous cell neoplasm (ESCN) treated with endoscopic resection (ER).Methods 368 patients were collected from 2007 to 2013.Clinicopathological features including invasion depth and margin were evaluated.Survival curves were constructed by using the Kaplan-Meier method.Univariate and multivariate Cox proportional hazard regression models were performed to identify associations with outcome variables.Results There were 252 males and 116 females with a median age of 61 (16-84) years.Patient numbers of hyperplasia,low grade intraepithelial neoplasia,high grade intraepithelial neoplasia,m1,m2,m3,sm1 and sm2 were 47(12.8%),61 (16.6%),61 (16.6%),54(14.7%),38(10.3%),63(17.1%),12(3.3%) and 32(8.7%),respectively.The cumulative overall 1-year,3-year,and 5-year rates of survival in the metachronous esophageal lesions were 4.1%,12.9% and 32.6%,respectively.The incidence of lymph node/distant metastasis was 1.54% in m3,6.25% in sm2,and 0 in other subgroups.The overall 1-year,3-year,and 5-year survival rates were 99.5%,97.3%,and 87.5%,respectively.Significant difference was identified between sm2 and non-sm2 patients in metastatic rate (P =0.021),however,no significant difference existed between m3 patients and sm2 patients (P =0.252).Metachronous esophageal lesion and survival between sm2 and non-sm2 patients demonstrated no statistical difference (P =0.401 and P =0.634).Conclusion ER is an effective and relatively safe treatment for superficial ESCN.The procedure is still appropriate in selecting sin2 patients.It is necessary to monitor the second primary cancer in sm2 patients during follow-up.
10.HER-2 gene amplification and protein expression in esophageal squamous cell carcinoma
Jie HUANG ; Dongxian JIANG ; Yingyong HOU ; Yuan JI ; Chen XU ; Yalan LIU ; Jia LIU ; Jieakesu SU
Chinese Journal of Clinical and Experimental Pathology 2017;33(6):618-622,628
To explore the status of HER-2 gene amplification and protein expression in Chinese esophageal squamous cell carcinoma patients and its relationship with the clinicopathological parameters.Methods The HER-2 gene amplification was detected by FISH and protein expression by IHC in 96 patients with esophageal squamous cell carcinoma that would be followed up for 3 years.Results Three cases presented with 3 +,15 cases with 2 +,11 cases with 1 +,and 67 with negative by HER-2 immunohistochemical staining;2 of 3 cases presented with HER-2 amplification in in 3 +,1 case presented with over 6 HER-2 copy numbers.HER-2 amplification and HER-2 overexpression had significant correlation (P < 0.000 1).HER2 amplification or overexpression was associated with clinicopathological parameters,such as,carcinomas without necrosis (P =0.012) and lower stage (P =0.040).There was better DFS or OS trend in patients with HER-2 overexpression or amplification,but the significant difference did not reached.Conclusion This research has demonstrated the correspondence between gene amplification and protein overexpression of HER-2 in ESCC.HER-2 gene overexpression or amplification is a potential better predictive parameter in ESCC,but needs further study.