ABSTRACT
Objective To understand the occupational exposure among medical laboratorians in a hospital,and put forward prevention and control measures.Methods Occupational exposure among medical laboratorians in the department of laboratory medicine of a hospital from January 2011 to December 2014 were analyzed statistically.Results A total of 72 cases of occupational exposure occurred among 217 laboratorians during 4 years,occupational exposure rate was 33.18％,the occupational exposure rate in interns was 46.23％,and in laboratorians with working seniority＜ 1 years was 49.56％.Occupational exposure mainly occurred in outpatient blood collection room(accounting for 38.89 ％),the main occupational exposure types were injuries by blood collection needles,skin contaminated by blood and body fluid(76.39 ％).Occupational exposure rates in medical laboratorians in this hospital during 2011-2014 were 53.66％(22/41),41.67％(20/48),26.23％(16/61),and 20.90％(14/67),respectively,which presented a declining tendency(x2 =12.286,P＜0.01).After occupational exposure,only 23 cases were reported according to the requirements of infection management department,the missing report rate was 68.06％ (49/72),correct handling rate was 80.56％ (58/72).Conclusion Laboratorians should strengthen education and training of healthcare-associated infection management,improve safety and prevention consciousness,standardize handling process,improve consciousness of reporting,so as to reduce the occurrence of occupational exposure and post exposure infection.
ABSTRACT
Objective To investigate the variations of multi-segments of the Willis' circle in cases with ACA-A1 variation.Methods Retrospective comparative analysis was applied to images of 2 246 healthy cases which were excluded from abnomalities of physical and biochemistry examination and angiostenosis caused by angiosclerosis.We divided variant group and contrast group according to variation of ACA-A1 segment.Several aspects were carried to comparison:the variation between bilateral ACA-A1 segment within the variant group was studied by x2 test; the proportion of FTP and developing of PCA-P1 were put into test.Finally we use trend x2 test to compare the variation degree of ACA-A1,ipsilateral FTP formation and PCA-P1 variation.Results Variants of ACA-A1 contains 634 cases whereas normal cases were 1 612.A prominence in variation revealed in right side of ACA-A1 (x2=26.19,P＜0.01) which revealed by 429 cases in right side versus 205 cases in lefi side respectively.Parallelled with contrast group,the variant group showed immensely advantages in high proportion of FTP (x2=14.165,P＜0.01) which indicated by variant group 22.56％ (143/634)and contrast group 18.30％ (295/1 612); but crippled in PCA-P1 formation (x2=4.32,P＜0.05)which illustrated by proportions of by dysplasia and deficiency compared by variant group and contrast group was 17.35 ％ (110/634),14.21％ (229/1 612).AC A-A 1 normal,slight variation,dysplasia and deficiency together with FTP dyformation was 9.15％ (58/634),15.62％ (52/333),16.50％ (34/206),23.16％ (22/95) respectively.Within the variation group,a pattern between ACA-A1 and FTP which fluctuated simultaneously with significant statistical discrepancies (x2=51.117,P＜0.01; linear by linear x2=13.340,P＜0.01)which demonstrated by ACA-A1 normal,slight variation,dysplasia,deficiency together with FTP formation was 4.57％ (29/634),12.91％ (43/333),16.02％ (33/206),20.00％ (19/95) respectively,as far as ACA-A1 variation was concerned,The variant group were more prone to develop PCA-P1 dysplasia or deficiency (x2=45.87,P＜0.01; linear-by-linear x2=43.474,P＜0.01).Conclusions There were more multi-variation of Willis' circle in the cases with ACA-A1 variation,MRA can value the anatomy and variation of the Willis' circle.MRA can also guide the clinic diagnosis,treatment and prognosis of the cerebrovascular diseases.