Objective:To explore the significance of blood dialysis device for real-time monitoring of dialysate temperature.Methods: Nikkiso DBB-27-type hemodialysis device was selected as a subject for discussion, analyzed and discussed the working principle, main structure and functional characteristics of the mixture ratio of dialysate and temperature monitor and combined with one case of temperature troubleshooting case.Results: Temperature monitoring was essential to ensure the stable running of dialysate mixture ratio and the temperature of the dialysate.Conclusion: The dialysate temperature has an important effect on renal fibrosis in end-stage hemodialysis patients, it is necessary to monitor the dialysate temperature and mixture ratio. Dialysis device heating degas proportioning system through surveillance system linked to the dialysis unit normal, stable operation, provide safe and reliable dialysis treatment for patients.

Objective:By analyzing the principle and mechanism of far-infrared radiation therapy, explore the far infrared radiation therapy for arteriovenous fistula function protection significance. Methods: Summarized and analyzed in hemodialysis patients arteriovenous fistula dysfunction causes and hazards, combined with clinical results, analyzed the intervention and protective effect of far-infrared radiation therapy for arteriovenous fistula.Results: Long-term treatment of far-infrared radiation play a very effective role in the intervention and protection for arteriovenous fistula function maintenance.Conclusion: By analyzing the principle and mechanism of far infrared radiation therapy, summed arteriovenous fistula dysfunction reasons. Clarified the far-infrared radiation therapy has a positive clinical significance in hemodialysis patients arteriovenous fistula function of protection.

Objective To analyze right ventrieular diastolic dysfunction in essential hypertension by quantitative tissue velocity imaging(QTVI). Methods Twenty normotensives and forty-five hypertensives underwent standard Doppler echocardiography and QTVI of right ventricular lateral tricuspid annulus. By QTVI,diastolic measurements were obtained. According to WHO standard, the patients with hypertension were classified into three groups, grade Ⅰ (group Ⅰ) 15 cases, grade Ⅱ(group Ⅱ) 15 cases, grade Ⅲ (group Ⅲ) 15 cases. Results Pulsed Doppler eehocardiography showed impaired Doppler diastolic indexes in hypertensives, without changes among the eases groups. In all hypertension groups, QTVI showed reduction of right ventricular Ea, increase of Aa and Ea/Aa<1 comparison with controls. IVRT of Ⅱ, Ⅲgroups was longer than normal. Conclusions Right ventricular diastolic function with essential hypertension decreased according to the degree of staging. QTVI has a greater predictive value than conventional imaging, and is useful for evaluating right ventricular function in patients with essential hypertension.

OBJECTIVEThis study aimed to detect the difference in the expression levels of autolysin atIS gene of Streptococcus gordonii (S. gordonii) at different growth stages and pH values, as well as to analyze the factors regulating atlS gene expression in S. gordonii.

METHODSS. gordonii wild strains (ATCC 35105) were collected at different growth stages (early exponential phase, mid-exponential phase, late exponential stage, and platform stage) and pH values (pH 7 and pH 5.5), and total RNA was extracted by using a conventional method. Fluorescence quantitative polymerase chain reaction (FQ-PCR) was used to measure the relative mRNA expression of atlS gene, with bacterial 16S rRNA as internal reference, for a comparison of the mRNA levels of atlS gene expression in S.gordonii at different growth stages and pH values.

RESULTSFQ-PCR results showed that atlS gene expression increased with gradually increasing growth stage under neutral conditions and was higher than that under acidic conditions (P < 0.05).

CONCLUSIONThe atlS gene expression in S. gordonii is influenced by growth stage and pH value factors.

Objective To investigate the posttraumatic stress disorder(PTSD) and ethical decision-making in nurses suffered workplace violence, and analyze the relmionship between them. Methods Totally 340 nurses suffered workplace violence were questionnaired by the PTSD Scale and the Ethical Decision- making Scale. Results The incidence rate of PTSD was 17.06%(58/340), the total score of PTSD was (38.77± 13.57).The scores of ideal ethical practice, actual ethical practice and ethical decision- making in the PTSD group were 121.36±8.33, 105.56±7.76, 226.92±15.52, and were significantly lower than that in the non-PTSD group (140.60±9.01, 117.65±8.41, 258.27±16.73) (t=-14.996, -10.015, -13.153, P < 0.01). The score of PTSD was negtively correlated with the scores of ideal ethical practice, actual ethical practice and ethical decision- making (r=-0.415, -0.431,-0.420, P < 0.05). Conclusions The PTSD probably occurred after workplace violence, nursing administrators should pay close attention to the PTSD and therefore improve nurses′ethical decision-making.

OBJECTIVE:To investigate the effect of arsenic trioxide(As2O3)on human hepatoma cells SMMC-7721 viability and the expression of urokinase plasminogen activator receptor(uPAR).METHODS:SMMC-7721 cells were cultured and treated with As2O3 at different concentrations for different time with untreated SMMC-7721 cells(without As2O3 treatment)served as control.The proliferation rate of the SMMC-7721 cells was measured by MTT assay;the change of cell cycle was detected by flow cytometry analysis;the effect of As2O3 on uPAR mRNA levels was analyzed by real-time fluorescent quantitative polymerase chain reaction.RESULTS:As2O3 had significant inhibitory effect on SMMC-7721 proliferation in time-dependent and concentration-dependent manner.As compared with control group,As2O3 significantly decreased the proportion of cells in G0/G1 phase but increased the cell proportion in G2/M phase,and it markedly down-regulated the level of uPAR mRNA expression(P

Objective To probe the value of using echocardiography in transcatheter closure of ventricular septal defect (VSD).Methods Under transthoracic echocardiography and digital subtraction angiocardiography monitoring and guidance in the operation,the Amplatzer excentric umbrella occluder was used to occlude the perimembranous defects in 15 cases of patients.Results All of the patients were treated successfully,though mitral regurgitations or residual shunts occurred in 6 cases,and disappeared at once after the position and direction of occluder were regulated in 3 and these complications disappeared gradually one month postoperation in other 3 patients.The umbrella separated from VSD in 1 and occluded successfully when manipulated once again.Complete heart block occurred in 2 and disappeared after 3 days.The positions of umbrella were normal and stable and no other complications were discovered when these patients were followed about 10 months the longest.Conclusions Echocardiography plays an important role in transcatheter closure of VSD with the Amplatzer occluder before,during and after operation and in the period of follow up.

Objective To summarize the cases of surgical treatment of patients with patent ductus arteriosus (PDA),atrial septal defect(ASD),or ventricular septal defect(VSD) after failure of congenital cardiac catheterization(CCC).Methods From January 2000 to December 2013 in our hospital 26 patients were retrospectively studied,follow-up results recorded for each patient by telephone and outpatient follow-up review.Results There were no deaths.The average age of the patients was (18.8 ± 17.9) (3.0-67.0) years old.The median time of the intervals between interventions and surgeries were 14 days(2 hours to 5 years),the median length of hospital stay were 10 days(7-21 days),median cardiopulmonary bypass time was 67minutes (0-206 minutes),the median blocking time 40 minutes (0-90 minutes),the median time of mechanical ventilation 8.5 hours (2.0-88.0 hours),median ICU stay one day (1-6 days).The average follow-up were (93.0 ± 49.3) months (7.0-182.4 months).Surgical results were satisfactory.Conclusion Interventional treatment of congenital heart disease (CHD) is safe after all,but should strictly the indications controlled,the operations completed by skilled doctors.If there are complex complications,surgical intervention should be concerned,and the results are satisfactory.Patients after CCC should be followed up regularly.

Chinese stomatology education mode is different from foreign oral education mode,with its own characteristics and some deficiencies.By comparing to the mature oral ( dental ) medical education system,we can learn from the successful experience from American modern oral medical education mode while preserving their advantages to carry forward the Chinese stomatology education.For this purpose,we analyze the academic structure,curriculum,teaching methods,continuing education,basic training,clinical practice,career prospects between Sino-US oral medical education system.Some suggestions on educative reform were also made.

Objective To propose a novel computer-aided segment algorithm, and retrospectively investigate its effect on radiologist's sensitivity and specificity for discriminating malignant masses from benign masses basing on ultrasound images. Methods Four hundred and sixty-six images of 100 masses obtained by conventional ultrasound were processed by a novel segment algorithm. Radiologists who were blind to the histology results were invited to analyse the original and computerized images respectively. The sensitivity and specificity were calculated by means of a binary outcome using receiver operating characteristic(ROC) analysis. Results By using the segment algorithm, the quantity of the image was obviously improved, especially the margin and calcification of the masses. The diagnostic performance of the radiologists was also improved. The sensitivity rose from 70.32% to 90.52% while the specificity was 74.31%. The area under the ROC curve increased significantly (P<0.01) from 80.8% to 90.5%. Conclusions The proposed segmentation algorithm can improve the diagnosis performance of the radiologists by meliorating the quality of the ultrasound image.