Objective To explore the effects of early enteral nutrition therapy combined with micro-ecologicalpreparation on early intestinal function recovery in patients with severe acute pancreatitis (SAP). Methods The clinical data of 48 patients with SAP treated from January 2012 to January 2015 were retrospectively analyzed. Out of the 48 cases, 23 were treated with early enteral nutrition therapy (the control group), and 25 were treated with early enteral nutrition therapy combined with micro-ecologicalpreparation (the observation group). The counts of white blood cells (WBC), the levels of blood amylase, serum lipase, lactic dehydrogenase (LDH), and the scores of gastrointestinal function 1 day before treatment and on the 7th and 14th day of treatment were observed. The incidences of complications, case fatality rates, and lengths of hospital stay were recorded. Results One day before treatment, the differences in the counts of WBC, the levels of blood amylase, lipase, and LDH between the two groups were not statistically significant (P>0.05). On the 7th day of treatment, the counts of WBC, the levels of blood amylase, lipase, and LDH in the two groups decreased in varying degrees, and the decreasing in the observation group was more obvious (P<0.05). On the 14th day of treatment, the levels of blood amylase in the two groups were almost normal, and the difference between the two groups was not statistically significant (P>0.05); the levels of lipase, LDH and the counts of WBC in the observation group were lower than those in the control group (P<0.05). One day before treatment, the difference in the scores of gastrointestinal function between the control group (1.34±0.76) and the observation group (1.46±0.62) was not statistically significant (P>0.05); on the 7th and 14th day of treatment, the scores of gastrointestinal function in the observation group (0.37±0.18, 0.29±0.06) were lower than those in the control group (0.63±0.32, 0.47±0.08), and the differences were statistically significant (P<0.05). There were significant differences between the two groups in terms of the incidence of total complications and length of hospital stay (P<0.05), while the difference in the case fatality rate between the two groups was not statistically significant (P>0.05). Conclusion Early enteral nutrition combined with micro-ecological preparation is benefit to the intestinal function recovery in patients with SAP.
Purpose To evaluate the therapeutic effect of laser-induced chorioretinal venous anastomosis for retinal vein occlusion (RVO)． Methods The investigation included 28 consecutive patients (28 eyes) with RVO．The non-ischemic group 18-cases (18 eyes) we re tre ated with the krypton red laser to induce chorioretinal venous anastomosis， the ischemic group underwent the same therapy and the grid or scattertype photoco agulation at the same time． All of the eyes were followed up for more than 5 mo nths， and with an average period of 6.6 months． Results Seven cases (7 eyes， 38．9%) of the non-ischemic group created successful chorioretinal venous anastomosis， with mean improvement of 4．43plusmn;0．7 8 standard deviation lines of best corrected visual acuity compared to0.19plusmn;0.67 lines for 11 eyes with unsuccessful anastomosis (Plt;0.001)．None of the seven eyes developed to ischemic state． Four of the 11 eyes with unsuccessful anastomosis converted to ischemic type (36.4%) ．Two cases of the ischemic group created successful anastomosis with improvement in visual acuity． The other cases had no change in visual acuity． Conclusion Laser-induced chorioretinal venous anasto mosis is a new therapeutic method for RVO， especially for nonischemic type and successful anastomosis can decrease the conversion rate of the vein occlusion to an ischemic state． (Chin J Ocul Fundus Dis, 2001,17:8-11)
Objective To evaluate the therapeutic effect of laser-induced chorioretinal venous anastomosis on macular edema of non-ischemic retinal vein occlusion. Methods Thirty-seven eyes of 37 cases of non-ischemic retinal vein occlusion received the treatment of laserinduced chorioretinal venous anastomosis and were followed up for 6～12 months. All affected eyes underwent the clinical examinations of visual acuity, ocular fundus photography, fundus fluoreceine angoigraphy (FFA) and light sensitivity of central 5 degree of the retina, and the pre- and post-operative clinical materials were analyzed. Results Successful chorioretinal venous anastomosis was formed in 18 eyes (48.6%) within 2 months after laser photocoaglation, with the mean best improved corrected visual acuity of (4.25±0.46) lines, while the mean best corrected visual acuity of the other 19 eyes with unsuccessful anastomosis decreased (0.20±0.54) lines（P＜0.001）. The light sensitivity of central 5 degree of the 18 eyes with successful anastomosis improved（P＜0.001）, with resolution of macular edema in 16 eyes, although cystoid macular edema in 2 eyes remained no change. The light sensitivity of central 5 degree of the 19 eyes with unsuccessful anastomosis have decreased（P＜0.05）, with aggrevation of the macular edema. Conclusion Successful laser-induced chorioretinal anastomosis can resolute the macular edema caused by retinal vein occlusion, especially for diffused macular edema caused by early retinal vein occlusion. (Chin J Ocul Fundus Dis,2002,18:10-12)
Objective To systematically evaluate the risk factors and population attributable risk of children leukemia in China, so as to provide references for policy-making. Methods The case-control studies about risk factors of children leukemia in China were searched in PubMed, CNKI, CBM, VIP and WanFang Data from inception to December 2011. According to the inclusion and exclusion criteria, two reviewers independently screened articles, extracted data, and evaluated the quality of the included studies. Then Meta-analysis was performed using STATA 11 and Excel 2003. The pooled odds ratio (OR) and 95% confidence interval (95%CI) of each risk factor were calculated, and the population attributable risk percent (PARP) based on the exposure rate of the risk factors was computed, and published bias was estimated according to the fail-safe number. Results A total of 15 case-control studies were included. The first 5 risk factors related to children leukemia were: dwelling environmental pollution (OR=2.782, 95%CI 2.268 to 3.413), house decoration (OR=2.525, 95%CI 1.736 to 3.673), maternal exposure to chemical hazards (OR=2.428, 95%CI 1.976 to 2.985), family history of tumor (OR=2.212, 95%CI 1.677 to 2.919), and child exposure to electromagnetic field around dwelling (OR=2.144, 95%CI 1.761 to 2.610). Factors with higher PARP were influenza history (37.56%), house decoration history (32.95%), X-ray exposure history (20.47%), and chemical hazards exposure history (17.37%). The fail-safe number showed the results were generally reliable. Conclusion In order to prevent and control children leukemia, positive and effective measures should be taken in the following aspects: strengthening child care, avoiding unnecessary X-ray exposure, and providing good living environment.
ObjectivesTo provide a reference for the evaluation procedures of genetic testing technology applicable to China by combining the existing evaluation frameworks and procedures for genetic testing techniques globally, and also put forward design suggestions for the construction of evaluation procedures in China.MethodsThe literature research method was primarily used to summarize different evaluation progress, as well as put forward design suggestions.ResultsAt present, numerous developed countries have organized genetic testing technology evaluation projects. The various evaluation frameworks developed were based on the ACCE or HTA framework. The evaluation and decision-making procedures were similar in general, including topic selection, evaluation implementation, results reporting and making recommendations. However, there still remained difficulties such as limited evidence and uncertainty in decision-making.ConclusionsTo establish the procedures of genetic testing technology applicable in China, the following specific procedures are recommended: selecting target genetic testing technology topics; analyzing necessity and feasibility of target testing technology evaluation; evaluating and reviewing the evidence; applying results and decision-making transformation; developing regular review and revision mechanisms.
ObjectiveTo evaluate the changes of the flow parameters before and after the anastomotic port exploration and dredging during coronary artery bypass grafting by using the transit time flow measurement (TTFM).MethodsA total of 167 patients who underwent continuous coronary artery bypass grafting and anastomotic port exploration and dredging surgery in Beijing Anzhen Hospital from 2018 to 2019 were enrolled in this study. There were 136 male and 31 female patients aged 41-82 (58.35±17.26) years. If the probe entered and exited the anastomotic port smoothly, it was recorded as a non-resistance group; if the resistance existed but the probe could pass and exit, it was recorded as a resistance group; if the probe could not pass the anastomotic port for obvious resistance, it was recorded as the stenosis group. In the stenosis group, the grafts were re-anastomosed and the flow parameters were re-measured by TTFM.ResultsA total of 202 anastomotic ports were carried out by exploration and dredging. Among them, 87 anastomosis (43.1%) were in the non-resistance group, and there was no significant change in the blood flow volume (BFV) and pulsatility index (PI) before and after exploration and dredging (6.16±3.41 mL/min vs. 6.18±3.44 mL/min, P=0.90; 7.06±2.84 vs. 6.96±2.49, P=0.50). Sixty-four anastomosis (31.7%) were in the resistance group, the BFV was higher after exploration and dredging than that before exploration and dredging (17.11±7.52 mL/min vs. 4.96±3.32 mL/min, P<0.01), while the PI was significantly smaller (3.78±2.20 vs. 8.58±2.97, P<0.01). Fifty-one anastomosis (25.2%) were in the stenosis group, and there was no significant change in the BFV and PI before and after exploration and dredging (3.44±1.95 mL/min vs. 3.48±2.11 mL/min, P=0.84; 10.74±4.12 vs. 10.54±4.11, P=0.36). After re-anastomosis, the BFV was higher (16.48±7.67 mL/min, P<0.01) and the PI deceased (3.43±1.39, P<0.01) than that before exploration and dredging.ConclusionThe application of anastomotic exploration and dredging can reduce the occurrence of re-anastomosis, and promptly find and solve the stenosis of the distal coronary artery, improve the poor perfusion of distal coronary, and thus improves the prognosis of patients.
Objective To systematically analyze the factors influencing the left-behind children’s mental health. Methods After the search term and strategy were confirmed by researchers, four Chinese databases including Chinese Biological Medical Literature Database (CBM), Chinese Science and Technology Periodical Database (VIP), China National Knowledge Infrastructure (CNKI) and WanFang Database (WF) were searched to collect papers, published before March 2011, on relevant factors influencing mental health of left-behind children in China. Then two reviewers independently screened, extracted and cross-checked the data, and the disagreements were resolved by discussion or by consulting a third reviewer. Qualitative synthesis method was used to analyze the study results. Results Of the total 3 252 records, 49 studies were included. The results of qualitative analysis showed that factors influencing left-behind children’s mental health could be classified into four categories including social factors, family factors, school factors and personal factors. Of the nearly 30 kinds of specific factors, the main ones were gender, age, parent-child relationship, social support, personality and characteristics, and outgoing condition of parents, etc. Conclusion Current research results indicate that many factors have influences on mental health of left-behind children, but the research quality is not high with low argument efficiency. There are still controversies on several factors’ impact. Longitudinal studies with rigorous design are needed to analyze the impact of different factors on the left-behind children’s mental health and to summarize the interaction between various factors, so as to provide scientific evidence for developing practical and effective intervention measures.
ObjectiveTo evaluate the significance and effect for surgery of Dukes D stage colorectal carcinoma. MethodsEightytwo cases of Dukes D stage colorectal carcinoma who underwent surgery from 1991 to 1998 were analyzed retrospectively. ResultsTwentyone patients experienced extended resections,29 patients palliative resection, 19 patients sideside anastomosis and 13 patients laparotomy and biopsy of the tumor. Patients with extended resections had significantly long survival time, quality of life in these patients were excellent in 71.4%, good in 23.8%, and fair in 4.8%; whereas quality of life in the group with palliative resections were excellent in 62.1%, good in 17.2%, fair in 13.8%, and poor in 6.9%. The other two groups had a bad postoperative effect, short survival time and poor quality of life. ConclusionIf the patients with Dukes D stage colorectal carcinoma have operative indications,surgical therapy should be actively performed and the postoperative survival rate and quality of life can be improved.
Objective To systematically review the literatures on left-behind children’s mental health status, and to describe and analyze the current domestic left-behind children’s main psychological health problems. Methods With the search terms and strategies predefined by repeated discuss and pre-retrieval, the literatures in Chinese published before March 2011 were searched in following four Chinese databases including Chinese Biological Medical Literature Database (CBM), Chinese Science and Technology Periodical Database (VIP), China National Knowledge Infrastructure (CNKI) and WanFang Dissertation Database (WF). All research papers that reported the left-behind children’s mental health status and problems within China were included. Two reviewers independently screened the literatures and extracted the data. Disagreements were resolved by discussion or by involving a third researcher. The qualitative synthesis method was used to analyze the studies, while the meta-analysis was not adopted because of the tremendous heterogeneity of each study on the definition of left-behind children, study design and outcomes. Results A total of 155 studies were included for the final analysis and all of them were the cross-sectional study including 63 uncontrolled cross-sectional studies and 92 controlled cross-sectional studies. Most of the results showed that compared with the non-left-behind children, the left-behind children’s mental health level was lower and there were many psychological problems. While several studies suggested that there was no significant difference between the two groups. The left-behind children in different types (such as different gender, age, guardianship types, the migrant condition of parents, etc.) had different mental health problems. Conclusion The results of the current research indicate that the left-behind children have many mental health problems. However, the results are still controversial. The definitions of left-behind children have not been unified and the quality of current studies is generally low, which might influence the synthesis of results. High quality of controlled studies and long-term prospective cohort studies need to be conducted to study more accurately and deeply on the left-behind children’s mental health and on the differences between the left-behind children and non-left-behind children.
The process of multi-parametric flow cytometry data analysis is complicate and time-consuming, which requires well-trained professionals to operate on. To overcome this limitation, a method for multi-parameter flow cytometry data processing based on kernel principal component analysis (KPCA) was proposed in this paper. The dimensionality of the data was reduced by nonlinear transform. After the new characteristic variables were obtained, automatical clustering can be achieved using improvedK-means algorithm. Experimental data of peripheral blood lymphocyte were processed using the principal component analysis (PCA)-based method and KPCA-based method and then the influence of different feature parameter selections was explored. The results indicate that the KPCA can be successfully applied in the multi-parameter flow cytometry data analysis for efficient and accurate cell clustering, which can improve the efficiency of flow cytometry in clinical diagnosis analysis.