RÉSUMÉ
Objective To analyze the occurrence status and characteristics of occupational needle-stick injuries among medical workers base on surveillance data and retrospective survey.Methods The data of occupational exposure reported by various depart-ments were collected and sorted out from January 1,2011 to March 31,2016.The self-designed occupational sharp instrument inju-ries questionnaire was adopted to collect the sharp instrument injuries situation from April 1-15,2016.Then the analysis was per-formed by adopting the SPSS20.0 software.Results The surveillance data analysis results showed that the incidence rate of occu-pational needle-stick injuries was 11.77%,the sex of medical staffs suffering from the needle-stick injuries was dominated by fe-males,the age was mainly under 25 years old,the type of work was mainly nurse and practicing nurse;the retrospective investigation found that 44.54% of medical staffs suffered from the stick injuries at the same time period.The occurrence risk of needle-stick in-jury had no statistical difference between the male and female medical staffs(χ2 =2.266,P=0.132),the occurrence risk was the highest in the 25-40 years old group,the occurrence rate of nurse stick-injury was 48.40%,which of doctors was 43.50%.Conclu-sion The report awareness after suffering from occupational needle-stick injury among medical staffs urgently needs to be strengthened,and doctors also are the high risk population of occupational needle-stick injury.
RÉSUMÉ
Objective To assess the reflectance confocal microscopic features of childhood lichen planus (LP),and to evaluate the performance of reflectance confocal microscopy (RCM) in the diagnosis of childhood LP.Methods RCM was performed for imaging of lesions in 35 children with LP.Then,biopsies were carried out at the same sites followed by histopathological examination.A comparison was conducted between confocal microscopic and histopathological findings.All the 35 cases were diagnosed based on clinical manifestations and histopathological findings.Results RCM imaging of lesions in the 35 cases showed cellular edema forming lowly reflective areas in the epidermis,sharp transition between the granular and spinous layers,and infiltration of moderately reflective inflammatory cells,which corresponded to wedge-shaped thickening of the granular layer on pathological examination.The dermo-epidermal junction was unclear,and dermal papillary rings were obscure or absent with infiltration of inflammatory cells arranged in lamelliform structures around the dermo-epidermal junction,which corresponded to interface dermatitis on histopathological examination.A band-like infiltration of inflammatory cells,including big,highly reflective oval or stelliform pigmentophages and small,moderately reflective round lymphocytes,was observed in the dermis,and the thickness of infiltration was measurable.Dilated blood vessels were longitudinally distributed in the papillary dermis with perivascular infiltration of inflammatory cells and pigmentophages.RCM images were highly consistent with histopathological findings in these patients.Conclusion RCM,as a real-time non-invasive imaging technique,can serve as an auxiliary examination method for the diagnosis of childhood LP.