Objective: To explore the effect of CO 2 pneumoperitoneum in laparoscopic surgery on the cardiovascular function of the geriatric cholelithiasis.Methods:Sixty aged patients undergone laparoscopic surgery were selected.During various stage of CO 2 insufflation,the heart rate(HR),blood pressure,oxygen saturation ,electrocardiogram(ECG),and myocardial enzymes were dected,and the clinical values of these changes were analyzed.Results: when CO 2 pneumoperitoneum established ,the HR and blood pressure were increased obviously .The incidence of arrhythmia was 36% and the incidence of changes of ST segment was 30%,10 minutes after pneumoperitoneum eliminated,these changes were restored. The myocardial enzymes and the oxygon saturation of blood had no distinct changes. Conclusion: The procedure of CO 2 pneumoperitoneum caused temporany changes of the HR ,SBP/DSP and ECG.The laparoscopic surgery is effective and safe for geriatric cholelithiasis.It suggests that the dynamic monitoring of electrocardiogram is necessary,especially for those with abnormal heart function.

In order to survey the prevalence of encephalomyocarditis virus (EMCV) infection in pigs in Hebei Province from 2006 to 2008,a total of 1306 swine serum from 31 farms in 10 regions in Hebei were tested for antibodies against EMCV nonstructural protein 2C by ELISA.Positive rates of antibodies in different regions and different age groups were analyzed.The results showed that antibodies against EMCV 2C were found in 176 out of 1306 serum samples collected from Hebei Province and the total positive rate was 13.48%.Seroprevalence of EMCV infection appeared in six out of ten surveyed regions and the highest positive rate was 26%.There was significant difference of seroprevalence in EMCV infection between breeder sows and other swine species.This survey indicated that EMCV infection has occurred in pig farms in most regions of Hebei Province and EMCV-carried breeder sows were one of the crucial causes for EMCV infection and prevalence.

BACKGROUND:The traditional surgical method have large trauma in the treatment of tibiofibular syndesmosis injury, and cannot wel complete the repair of ligament. But the suture anchor has clear effect for ligament repair, ligament reconstruction and bone connection. OBJECTIVE:To investigate the biomechanical properties of the suture anchor in the treatment of tibiofibular syndesmotic injury, and to compare with lag screw internal fixation. METHODS:Eight ankle joint specimens were col ected, and the biomechanical experiment was performed for stress analysis. The suture anchor technology and lag screw internal fixation were used respectively to treat the tibiofibular syndesmotic injury. The biomechanical properties of the stress strength, stiffness and stability were compared. RESULTS AND CONCLUSION:The biomechanical properties of the stress strength, stiffness and stability of suture anchor technology for the treatment of tibiofibular syndesmotic injury were better than those of lag screw internal fixation, and there were significant differences in the strength and stiffness between two methods (P<0.05);the stress shielding rate of suture anchor technology was lower than that of lag screw internal fixation, and the difference was significant (P<0.05);the tibiofibular syndesmosis separated displacement of suture anchor technology was lower than that of lag screw internal fixation, and the difference was significant (P<0.05). The results indicate that the suture anchor technology is a minimal invasion and good method to realize physiological reconstruction and elastic fixation with stable fixation strength and less trauma, and without secondary operation.

Objective To analyze the application effect of glass fiber pile and cast metal pile in tooth defect repair and its influence on periodontal tissue.Methods From February 2014 to February 2015,112 patients with dental defect in the Central Hospital of Yiwu were randomly divided into the control group and the research group according to the digital table,with 56 cases in each group.The control group received the casting metal pile repair,the research group was repaired with glass fiber piles.The remediation effect,periodontal tissue status,inflammatory response and adverse reaction were compared between the two groups.Results The success rate of the research group was significantly higher than that of the control group(89.29％vs.66.07％),and there was statistically significant difference(χ2 =8.70,P<0.05).After treatment,the alkaline phosphatase,interleukin-6(IL-6)and interleukin-8(IL-8)levels of the two groups were increased compared with before treatment,which of the research group were obviously lower than those of the control group [(440.75 ±55.75)U/L vs.(491.75 ±62.59)U/L,(18.77 ± 2.21)ng/L vs.(30.65 ±3.97)ng/L,(51.42 ±6.32)μg/L vs.(76.33 ±9.50)μg/L],there were statistically significant differences(t=4.52,19.56,16.33,all P<0.05).After treatment,the periodontal examination depth of the two groups was(2.15 ±0.29)mm and(2.17 ±0.25)mm,respectively,and there was no statistically significant difference(t=0.39,P>0.05).Conclusion The effect of glass fiber pile in tooth defect repair is better than cast metal pile,and its stability and biocompatibility are better,and it is a simple operation,which is worthy of clinical promotion.