Objective To recognite the importance of early emergent management of and prevention therapy of complication in acute cervical spine injury. Methods early emergent support and 8 types and 715 early complications and their prevention and management in 194 cases with acute cervical spinal cord injury admitted through 1989 to 1995 were reviewed.Results Mortality in early stage can be markedly reduced with routinely and standardization of early emergency treatment obviously reduced the mortality procedure,pulmonary complication being the main cause of death, while early complications can delay surgical treatment,increase the cost and the staying in hospital and reduce difficulty of rehabilitation.Conclusion Early complication occurring in the first days with its own feature, prevention or treatment properly will be benefit for the treatment of the neural lesion and following rehabilitation.

Objective To observe the indications for early surgical trea tment of thoracolumbar burst fracture (TLBF). Methods 139 cases who had been def initely diagnosed as TLBF were analyzed retrospectively. They were divided into 2 groups: operation and non-operation. 47 patients had non-surgical treatment, such as bed-rest plaster brace. 92 patients had surgical treatment with plate and root screw. Spinal cord functions were evaluated according to the ASIA metho d. Results All patients were followed up for 6 months to 10 years (averaged 6 y ears and 2 months). Their average kyphosis angle measured with Cobb method was 2 3.5? before the operation and 8.5? after the operation. The average degree o f middle column posterior convexity was 25%～85% before the operation (averag ed 33%) and 0～53% after the operation (averaged 12%). The average height of anterior column was 45% before the operation and 85% after the operation. T he average degree of spinal stenosis was 30%～85% before the operation (avera ged 55%) and 0-50% after the operation (averaged 20%). There were more case s whose neural function recovered to grade E in the operation group than in the non-operation group (P

BACKGROUND: It is often seen in clinical practice that children, aged3-15 years, suffer from knee pain of unknown cause at night, which occurs frequently. Most of them can be called "pain of growth".OBJECTIVE: To analyze the related factors of knee pain in adolescents and observe the interventional effect of alpha-D3 (α-D3).DESIGN: Case control analysis, self-control analysis SETTING: Department of Orthopaedics, Jinshan Hospital Affiliated to Shanghai Fudan University PARTICIPANTS: We admitted 22 children outpatients, aged 3 to 15years, who suffered from recurrent attack of knee pain of unknown reasons and received treatment in Jinshan Hospital Affiliated to Shanghai Fudan University from June 1998 to August 2002, servingas group A. Another 20children outpatients of fracture recovered for half a year were recruited simultaneously, serving as Group B (control group).METHODS: Group A adopted the therapy of α- D3 of 0.25 μg taken orally once everyday for successive 7 days then stopped to observe the symptoms for the next three weeks. Four weeks was one therapeutic course.If the pains were still alive or reoccurred, another therapy period was needed until they vanished. The contents of bone gla protein (BGP), blood calcium (Ca2+), blood phosphorus (P3+), blood magnesium (Mg2+), alkaline phosphatase (ALP) and bone mineral density (BMD) of patients were detected between Group A and Group B. GBP index and change of pain in knee at night was observed with α-D3 before therapy and 1,3 and 6months after therapy. After one therapy period, the levels of blood Ca2+, P3+,Mg2+, ALP, BGP, CT, urine and X-ray of knees were detected again, so was BMD after 6 months.MAIN OUTCOME MEASURES: ① Blood Ca2+, P3+, Mg2+, ALP contents of children patients were detected before and after therapy . ② In the Group A, content of BGP was detected before and 1,3 and 6 months after therapy, and BMD before and 6 months after therapy; The above indexes were detected 6 months and one year after bone fracture healing in the control group. ③ Therapeutic effect of α-D3.RESULTS: All the 42 patients entered the stage of result analysis. ① The levels of blood Ca2+, P3+, Mg2+, ALP of patients who suffered pain in knee were all normal before and after therapy . ②BGP content of patients in the control group was significantly lower 1 year after bone fracture healing than 6 months after bone fracture healing [(7.06±0.74), (7.44±1.16)μg/L,P ＜ 0.01]; BGP content of patients in Group A was 15.98 μg/L before therapy , which was significantly higher than that in the control group .BGP content was (12.12±2.2), (10.6±81.31), (7.60±0.95)μg/L , respectively in 1,3 and 6 months after therapy. There was significant difference of BGP content between before and after therapy (P ＜ 0.05). ③ There was no significant difference of BMD of patients between two groups (P ＞ 0.05).④ Symptoms of pain in knee at night improved or disappeared after α-D3therapy, and the therapeutic time was 9 to 83 days.CONCLUSION: Although the knee pain of adolescents and children at night can not reach the diagnostic criterion of rachitis, it is still correlated with the deficiency of bone mineralization, in clinical practice, the BGP determination should be used as a means of monitoring the pain of unknown cause. There is significant effect using vitamin D3 in treatment of knee pain of children at night.

ObjectiveTo investigate correlation between drug-resistance related genes and mobile genetic elements of Klebsiella pneumoniae resistant to β-lactams. Methods Forty-seven strains of multidrug-resistant Klebsiella pneumoniae were collected from 6 hospitals in Hangzhou and Huzhou of Zhejiang province from August 2008 to May 2010.Modified Hodge test was performed to detect phenotypes of carbapenemases.Forty kinds of β-lactamases (class A-D),ompK35,ompK36,and 12 kinds of mobile genetic elements were detected by PCR,and the results were analyzed by index cluster.ResultsThirty-five strains were positive in modified Hodge test,and 5 kinds of β-lactamases gene ( including KPC-2-like,GenBank:HQ258934) and 9 kinds of mobile genetic elements were detected.Mutations were observed in ompK35 and ompK36 when compared with sensitive strains.Index cluster analysis showed that correlation existed between KPC-2,KPC-2-like and ISKpn6,between TEM-1 and ISEcpl,IS26,int Ⅰ 1,trbC,IS903,and between CMY-2,OXA-30,DHA-1 and tnpU,tnp513,trbC.ConclusionsFive kinds of β-1actamases genes,and mutations in ompK35 and ompK36 may be associated with the resistance to β-1actams in multidrug-resistant Klebsiella pneumoniae.

Objective To systematically evaluate the control effects of different concentrations of atropine on myopia in Chinese children.Methods PubMed,Embase,The Cochrane Library,Web of Science,CBM,WanFang Data,VIP and CNKI databases were retrieved to collect the studies on children's myopia control by atropine from the establishment of the database to April 2023.After the literature screening,data extraction and bias risk valuation were carried out by 2 research-ers,a Meta-analysis was performed via RevMan 5.4 software.Results A total of 32 studies were included,comparing the effects of 7 different concentrations of atropine and placebo.The Meta-analysis showed that compared with placebo,0.1 g·L-1 atropine had a significant impact on the change of spherical equivalent[MD=0.39,95％CI(0.26,0.52),P＜0.05],and significantly suppressed the axial length increment[MD=-0.18,95％CI(-0.24,-0.12),P＜0.05].Among other concentrations,0.2g·L-1,0.5g·L-1 and 10 g·L-1 atropine had sound effects on myopia control.Conclusion Exist-ing evidence shows that compared to placebo,atropine at concentrations of0.1 g·L-1,0.2 g·L-1,0.5 g·L-1and 10 g·L-1 has better effects on controlling the spherical equivalent and axial length of children with myopia.Among them,at-ropine at the concentration of 0.1 g·L1 may have the best effect.

Objective To explore the influence of drug dosage, solvent and other main influencing factors on the successful establishment of alloxan-induced hyperglycemia mouse model and the effect on the stability of this model. Methods 160 6-8-week-old Kunming mice ofSPF grade, (male:female=1:1) were used in this study.The influences of different dosages of alloxan and solvent combinations on the successful establishment rate of the model, survival rate, body weight, fasting blood glucose, blood glucose area under curve, serum insulin level and their stabilities were dynamically observed for six weeks.Results By single intraperitoneal injection of 160 mg/kg bw alloxan ( pH 4.5 citrate sodium as solvent) , we were able to obtain a stable experimental hyperglycemic mouse model with higher levels of successful establishment rate (70%), survival rate (75%), fasting blood glucose (15-20 mmol/L), glucose area under the curve (55-65 mmol/L) and a lower but not loss of serum insulin levels (21 mIU/L).Conclusions In the present study we have carefully considered the influence of main factors such as drug dosages, solvent, etc., on the alloxan-induced experimental hyperglycemic mouse model, and successfully established this model after 6-week period observation of its stability.This model may provide a useful tool in the research of experimental diabetes and hypoglycemic functional studies.

Objective:To evaluate the efficacy and safety of radiofrequency introduction of L-vitamin C in patients with melasma.Methods:From March to June 2019, 20 patients with melasma were admitted to the Department of Dermatology, the Seventh Medical Center of PLA General Hospital, including 19 females and 1 male, aged 30-60 years, with an average age of 43.5 years. All patients were treated with 22 percent of L-vitamin C once a week, a total of 8 times of treatment and followed up for 12 weeks. Each subject was assessed with standardized clinical photo, skin tests (VISIA skin image analyzer and CK multifunctional skin tester) and patient self-assessment. In addition, the adverse reactions were recorded.Results:Physician evaluation and patient self-evaluation showed that skin symptoms were improved obviously after treatment. 90% of the subjects thought that all of the skin moisture, pores, fine lines, glossiness, and color spots were improved after 12 weeks. The skin texture, ultraviolet stain and the brown spots which were detected with VISIA skin image analyzer were all improved after one week and one month. Difference was statistically significant ( P<0.05). Skin glossiness was significantly improved, skin moisture content increased and melanin decreased, which were detected with CK multifunctional skin tester. The differences were statistically significant ( P<0.05). But there was no significant change in transdermal water loss and red pigment index ( P>0.05). Conclusions:22% L-vitamin C can be used to treat melasma and improve photoaging safely without affecting skin barrier function.

【Objective】 To analyze the comprehensive factors causing adverse reactions to apheresis platelet donation(ARAPD), so as to provide references for effective prevention of ARAPD. 【Methods】 The 272 cases of ARAPD from 2012 to 2019 in Lanzhou were statistically analyzed, and factors that induced ARAPD were studied. Statistical analysis were performed according to the gender, nationality, occupation, age, weight, donation units, and number of donations. 【Results】 As to the factors inducing ARAPD, anticoagulant reactions accounted for the first(32.4%, 88/272). Women and students were prone to develop ARAPD. Among all age groups, 18~25 years old were most likely to develop ARAPD(53.68%, 10 572/35 265). The incidence of ARAPD were significantly different by ages and weights(P<0.05), and donors with lighter weight were more prone to develop ARAPD(P<0.05). The incidence of ARAPD were also significantly different between first-time and repeated donors(P<0.05), but not among the donation units. 【Conclusion】 The anticoagulant reactions are the leading reason for ARAPD. For female, student, young, light-weight, and first-time blood donors, special attention should be paid and corresponding interventions taken to them.