Objective To make a method for determination of 2-chloromethyl-oxirane in water by gas chromatography. Methods 2-chloromethyl-oxirane in water was extracted by dichloromethane. The extraction was highly condensed.The condensate was isolated through FFAP capillary, and than was detected by hydrogen flame ionization detector. Results The linear range was 0.502-10.04 ?g/ml, r=0.999 2, the detection limit was 0.000 5 mg/ml, recovery rates were 90.3%-99.9%, RSDs were 3.5%-4.3%. Conclusion This method is simple, sensitive, accurate and suitable for determination of trace 2-chloromethyl-oxirane in soak water used for safety assessment of water supply equipments and coatings paints.

Objective To investigate the relationship of hyperglycemia to trauma score,infection,MODS and survival time of the dead patients caused by trauma.Methods A total of 455 cases of dead trauma patients selected randomly from our hospital,were divided into two groups with normal blood glucose(n=57) or hyperglycemia(n=298).The RTC,GCS and the cases of infection and MODS as well as the survival time of two groups were recorded,and the coefficients of relationship between the blood glucose and the indexes of MODS in the dead trauma patients were calculated.Results The levels of RTC,GCS in the group with hyperglycemia were higher than that with normal blood glucose(P

Objective:To investigate the clinical effect of high-intensity focused ultrasound(HIFU)combined with thermal balloon endometrial ablation(TBEA)in treating abnormal uterine bleeding caused by adenomyosis.Methods:According to the treatment method of patients,a total of 200 patients with abnormal uterine bleeding due to adenomyosis(AUB-A),who admitted to Mianyang Central Hospital from February 2021 to October 2022,were divided into observation group and control group,with 100 cases in each group.Observation group adopted HIFU combined with TBEA to conduct treatment.The control group adopted HIFU ablation therapy alone.The clinical effects,dysmenorrhea symptom,changes of uterine volume and improvements of hemoglobin levels were compared between the two groups.Adverse reactions of them were also observed.Results:After treatment,the menorrhagia symptom of observation group was obviously better than that of control group,and the total effective rate of observation group was 100%,which was significantly higher than 70%of control group,and the difference was statistically significant(x2=35.29,P＜0.05).After treatment,the clinically effective rate of the menorrhagia symptom of observation group was higher than that of control group,and the totally effective rate of observation group was 89%,which was significantly higher than 77%of control group,and the difference of that between the two groups was statistically significant(x2=5.103,P＜0.05).Compared with the scores of menstrual volume before treatment,these decreased at 1,3,6 and 12 months after treatment,and scores of observation group were lower than these of control group.The scores of menstrual volumes of observation group at each time point after treatment were as follows:1(1,1)points,1(1,1)points,1(1,1)points and 1(1,1)points.The scores of menstrual volumes of the control group at each time point after treatment were as follows:3(2,4)points,3(2,4)points,2(2,4)points and 2(1,4)points,and the differences between the two groups were statistically significant(Z=-9.98,-9.424,-9.535,-4.224,P＜0.05),respectively.There were also significant differences in hemoglobin between the two groups at each time point(Z=-6.66,-11.797,-12.22,3.338,P＜0.05),respectively.There were significant difference in uterine volume between the two groups at 6 and 12 months after treatment(Z=-2.638,-2.679,P＜0.05),respectively.There were no significant differences in dysmenorrhea scores between the two groups at 1,3,6 and 12 months after treatment(P＞0.05),respectively.Conclusion:The combination of HIFU and TBEA is safe and effective in treating adenomyosis.Compared with HIFU alone,the combination of HIFU and TBEA can significantly reduce menstrual volume,and enhance the curative effect of abnormal uterine bleeding caused by adenomyosis,and more effectively shorten the uterine volume,and promote the raise of hemoglobin.There is no significant difference in the degree of decline of dysmenorrhea score between the two groups after treatment,but the cure rate and effective rate of the observation group are higher.

ObjectiveTo investigate the value of remote consultation of heart sound acquisition in screening and referral of neonates with congenital heart diseases （CHD） in primary hospitals. MethodsA total of 4 030 neonates with non-critical diseases were selected. They were born in Shanghai Pudong New Area Maternal and Child Health Hospital from November 5， 2019 to March 31， 2021. After birth， routine cardiac auscultation was performed and remote consultation of heart sound collection were performed at the same time in combination with percutaneous oxygen saturation measurement to screen CHD. The children with any positive screening index were advised to verify the diagnosis by cardiac ultrasound examination in Shanghai Children's Medical Center. The diagnostic value of different screening methods was compared. ResultsA total of 110 cases were detected positive by routine screening. Among them， 16 cases were lost to follow-up， and 46 cases were confirmed by cardiac ultrasound examination， with a positive diagnosis rate of 48.94% （46/94）. A total of 51 cases were detected positive by routine screening and remote consultation of heart sound collection simultaneously. Among them， 42 cases were confirmed by cardiac ultrasound examination， with a positive diagnosis rate of 82.35% （42/51）. The difference between the two positive diagnosis rates was statistically significant （P<0.001）. ConclusionRemote consultation of heart sound acquisition on the basis of routine neonatal CHD screening can effectively improve the positive diagnosis rate of CHD screening in primary hospitals， and reduce unnecessary referrals. This method is simple and feasible. It has practical value in primary hospitals that lack professional technicians for the diagnosis and treatment of CHD.