Constriction, Pathologic ; Humans ; Vascular Diseases

Objective To analyze impact factors for resolving cases of medical disputes with people's mediation mechanism,for improvement of this mechanism.Methods This paper picked 273 cases mediated by Guangdong Medical Dispute People Meditation Committee from June 2010 to December 2011,for analysis from doctor-factors,patient-factors,mediator-factors and composite factors.Results Under such mechanism,doctor-factor has not significant difference on the mediation success ratio and mediation timeliness of the cases; the success rates of cases of death,disability,and no obvious impairment suffered by patients are 68.57％,55.81％ and 76.80％ respectively.Such results are found by chi-square test as P＜0.05,significant statistically.With cases reported via hospitals,the mediation timeliness is much better than other cases.Conclusion The mechanism is advantageous in effectively avoiding influences of case factors,yet emphasis should be placed on mediation of disability cases,and doctors should be encouraged to report the cases,contributing to higher success rate of mediation.

To study the effects of electromagnetic radiation from handsets of cellular telephone on quality of user's sleeping and depression 88 staff with handsets of cellular telephone and 77 staff without handsets of cellular telephone from corporations were selected as the subjects The subjects were investigated by questionnaires on their general health,lifestyle habit,psychological stresses,handset using of cellular telephone,living and working environmental exposure,morbidity and quality of sleeping and depression The data was analyzed by chi square,stepwise regression,Logistic regression,and covariance statistics The prevalence rate of insomnia was higher in user's group significantly ( P

Objective To explore the diagnostic value of multi-slice spiral CT in clinical stage of nasopharyngeal fi-broangioma. Methods The clinical data and imaging findings of CT in 40 patients with nasopharyngeal fibroangioma confirmed by operation and pathologic examination were retrospectively analyzed. The size, shape, density, boundary, strengthen and the changes of the adjacent structure of the mass were observed and analyzed. Results According to Radkowski classification, 3 cases were evaluated as stageⅠa, 9 cases were evaluated as stage Ⅰb, 8 cases were eval-uated as stage IIa, 10 cases were evaluated as stage IIb, 5 cases were evaluated as stage IIc, 3 cases were evaluated as stageⅢa and 2 cases were evaluated as stageⅢb. Most corrosive location were in nasopharynx, pterygopalatine fos-sa, sphenoid sinus, maxillary sinus, eye socket and followed occurred in fratemporal fossa, and few corrosive location were in sclerotin of pars buccalis, cavernous sinus and basis cranii. The tumor showed uniform and slightly lower den-sity but obviously strengthening after administration of Gd-DTPA. Conclusion Multi-slice spiral CT has important clinical value for the clinical stage diagnosis, preoperative localization, evaluating the postoperative extent and the prognosis of the nasopharyngeal fibroangioma.

Objective: To explore the association of arsenic with unexplained recurrent spontaneous abortion (URSA). Methods: A case-control study was conducted to select URSA patients who were admitted to the Beijing Maternal and Child Health Care Hospital affiliated to Capital Medical University from April to October 2018 as a case group. Women who had a normal pregnancy in the Family Planning Department of the hospital but volunteered to have an abortion were selected as a control group. The case and control group were paired in a 1: 1 ratio. The inclusion criteria of the case group were patients with newly diagnosed recurrent spontaneous abortion who had clinically confirmed more than 2 spontaneous abortions and had 20 weeks prior to pregnancy, excluding patients with recurrent spontaneous abortion caused by abnormal blood coagulation (anti-phospholipid antibody positive), abnormal physiological anatomy (B-ultrasound), abnormal immune factors (anti-nuclear antibody positive, anti-cardiolipin antibody, etc.), genetic chromosomal abnormalities (karyotype analysis) and pathogenic microbial infection. The control group was matched according to the age of the case group (±3 years old) and the gestational age (±2 weeks) to exclude adverse pregnancy outcomes such as stillbirth, congenital malformation, premature delivery and low birth weight infants. A total of 192 subjects were included. Questionnaires were used to collect information of all subjects, and 12 ml of peripheral venous blood was collected to detect blood arsenic levels. Blood arsenic levels were divided into low concentration group (<1.00 μg/L), medium concentration group (1.00-1.50 μg/L) and high concentration group (>1.50 μg/L). The multivariate conditional logistic regression was performed to analyze the relationship between blood arsenic exposure and URSA and explore the influencing factors of blood Arsenic. Results: The geometric mean values of blood arsenic level in the cases group and control group were 1.68 (1.50-1.86) μg/L and 1.26 (1.17-1.37) μg/L, respectively. The blood arsenic level in the case group was significantly higher than that in the control group (P<0.05). The results of multivariate conditional logistic regression analysis showed that after adjusting for tobacco exposure during pregnancy, pre-pregnancy body mass index and the effects of residential decoration in past five years, the risk of URSA was higher in the high-concentration group compared with the low-concentration group (OR=2.56, 95%CI:1.06-6.24). Conclusion Blood arsenic may increase the risk of URSA in women of childbearing age.

Objective: To understand the current status of BMI of the elderly and related factors in longevity areas in China, and provide scientific evidence for the control of BMI level in elderly population. Methods: Data used in this study were obtained from Healthy Aging and Biomarkers Cohort Study, a sub-cohort of the Chinese Longitudinal Healthy Longevity Survey. A total of 2 825 elderly in 8 longevity areas in China were surveyed and measured in 2017. The BMI levels of 2 217 elderly aged 65 years and older were calculated and in follow up. The ordered classification logistic regression model was used to analyze the influencd factors for the BMI in the elderly. Results: The BMI of the elderly in 8 longevity areas in China was (22.36±3.87) kg/m², and it was (22.76±3.58) kg/m² for males and (21.75±3.98) kg/m² for females. The BMI levels were normal in 1 165 elderly persons. The prevalence of underweight, overweight and obesity were 15.8%, 24.0% and 7.7%, respectively. Multivariate analysis showed that the main factors affecting the BMI of people under 100- years old were age (65-: OR=2.78, 95%CI: 1.87-4.15; 80-: OR=1.47, 95%CI: 1.00-2.17), smoking status (OR=0.46, 95%CI: 0.32-0.66), annual household income (<30 000 Yuan: OR=1.26, 95%CI: 1.07-1.47; 30 000-70 000 Yuan: OR=1.52, 95%CI: 1.12-1.86), and frequency of tea intake(OR=1.36, 95%CI: 1.01-1.71), while the factor in people aged ≥100 years was gender (OR=3.68, 95%CI: 1.32-10.36). Conclusions The prevalence of underweight, overweight and obesity were high in the elderly from longevity areas in China. It is necessary to pay attention to the trend of overweight and obesity due to smoking, higher annual household income and regular tea drinking in the elderly men.

Objective: To understand the relationship between visual impairment and risk of all-cause mortality in the elderly aged 65 years and older in 8 longevity areas in China. Methods: The data of the elderly aged 65 years and older in the project in 2012 were obtained from Healthy Aging and Biomarkers Cohort Study, a sub-cohort of the Chinese Longitudinal Healthy Longevity Survey, including physical measurement and survival status, and a follow-up for survival outcomes were conducted in 2014 and 2017 respectively. Cox proportional hazard regression model was used to analyze the influence of visual impairment on mortality. Gender and age specific analysis was conducted. Results: A total of 1 736 elderly adults were included. A total of 943 deaths occurred during the 5-year follow-up period with a 5-year mortality rate of 54.3%. The 5-year mortality rate was 76.7% in the group with visual impairment, and 47.6% in the group without visual impairment (P<0.001). After adjusting for demographic information, life style and some disease factors, the risk of 5-year mortality in the group with visual impairment group was 1.30 times higher than that in the group without visual impairment (HR=1.30, 95%CI: 1.09-1.55). In the females, the risk for mortality in the group with visual impairment was 1.48 times higher than that in the group without visual impairment (HR=1.48, 95%CI:1.20-1.84). However, vision status was not associated with the risk for mortality in males (HR=1.02, 95%CI: 0.72-1.43). The risk for mortality in the group with visual impairment was 1.39 times higher than that in the group without visual impairment in the elderly aged over 90 years (HR=1.39, 95%CI: 1.13-1.70). Vision status was not associated with mortality risk in the elderly aged 65-79 years and 80-89 years (HR=1.37, 95%CI: 0.61-3.07; HR=0.95, 95%CI: 0.61-1.48). Conclusion In the elderly people in China, visual impairment is a risk factor for mortality.