Objective Nutrition becomes a focus to professionals as an important factor during the development of pressure ulcers.However, there is no evidence for the effectiveness of eternal nutrition support for pressure ulcer prevention .This research aimed to evaluate the effectiveness of eternal nutrition support for pressure ulcer prevention and provide evidence for patients with the risk of pressure ulcer . Methods Key words such as pressure ulcer prevention,eternal nutritional supportwere used to search information in the Cochrane Library , JBI Database of Systematic Reviews , MEDLINE, Web of Science, EMbase, CBMdisc, CNKI and Wanfang Database to collect randomized controlled trials (RCTs).The quality of RCTs was critically appraised and data were extracted by 3 reviewers independently .Meta-analyses were conducted for the eligible RCTs using RevMan 5.0 software, and Stata12.0 software was applied to detect bias or sensitivity analysis to determine the source of heterogeneity if necessary . Results 7 RCTs were includ-ed, among which 1 RCT was excluded by sensitivity analysis .6 RCTs ( n=1553 ) were finally included for meta analysis ( n=728 in trail group, n=825 in control group), and all the patients were given oral nutrition support for 7days to 26 weeks.The results showed that the ulcer incidence in the intervention group reduced by 16%in comparison to the control group (P=0.006).The protein and energy intake in intervention group were higher than those in control group , and the length of stay in hospital was shortened by 16 days. No significant difference was found in the albumin values . Conclusion The enteric nutrition support can reduce the incidence of pressure ulcer obviously with the highest level of evidence , IA .

Objective To explore the application of quantitative DNA analysis in differential diagnosis of benign and malignant breast masses to aid the surgery plan formation.Methods Four hundred and eighty-eight patients with breast mass were enrolled into this study.Tissues of breast mass in patients were gained by fine-needle aspiration puncture.Two sections were made from each sample,one was stained by Papanicolaou for regular cytology analysis and another was stained with Feulgen for quantitative DNA analysis.Pathological results were confirmed in each case after surgery.Results One hundred and sixty-four cases were classified as patients with benign neoplasm,while the other 324 cases were classified as malignant neoplasm,according to the pathological examination results.The sensibility and specificity were 91.4%(296/324) and 92.7%(152/164) for regular cytological method,90.1%(292/324) and 100.0%(164/164) for quantitative DNA analysis method.Meanwhile the positive predictive and negtive value of quantitative DNA analysis was 100.0%(292/292) and 83.7%(164/164),of which regular cytological methods were 96.1%(296/308) and 84.4%(152/180).Conclusion The quantitative DNA analysis might assistant differential diagnosis of benign and malignant breast tumor.

Objective To evaluate the effectiveness of bioelectrical impedance analysis(BIA) interventions on volume status in hemodialysis patient. Methods Searched The Cochrane Library, PubMed, EMbase, EBsco, Wanfang Data, China Biology Medicine, China National Knowledge Infrastructure to collect clinical trials. The retrieval time was from database to July 15, 2016. The studies were selected according to the inclusion and exclusion criteria and were critically appraised by two reviewers. Then the data of included studies were extracted. Meta-analysis was conducted by using RevMan 5.3 software and descriptive analysis. Results Ten clinical trials were included six random control trial, one controlled clinical trail, three longitudinal study, involving 2009 patients. The results of Meta-analysis showed that the effectiveness of BIA interventions on volume management could improve blood pressure (P=0.001), protect the heart function(left ventricular mass index,P=0.002), compared with the clinical evaluation method, the BIA assessment of dry weight of hemodialysis patients could reduce hospitalization rate 14%. Descriptive analysis showed that BIA intervention volume management had certain advantages for the survival benefit of patients, but the current research was still few, had not yet come to a certain conclusion. Conclusions BIA can improve the management of the volume status and dry weight of hemodialysis patients, so as to it can improve the clinical benefit and survival benefit of patients.Better methods and guidelines for assessing DW and using BIA need to be developed.We propose that experienced HD nursing staff be trained in the use of the BIA to help monitor patient over hydration and approximate dry weight in consultation with the nephrologists responsible for the care of these patients so as to obviate excessive residual over hydration between nephrology reviews.

Objective To evaluate the effectiveness of swallowing training supplemented with neuromuscular electrical stimulation to provide a reference for clinical treatment and further study.Methods Reports of randomized and controlled trials of surface neuromuscular electrical stimulation in treating post-stroke dysphagia were sought in the Cochrane library,the PubMed and Embase databases,the Cumulative Index to Nursing and Allied Health Literature (CINAHL),and also in the ProQuest,PsycARTICLES,CBMdisc,China National Knowledge Infrastructure (CNKI),CQVIP database and Wanfang databases.All of the literature found was evaluated by 2 researchers according to predefined inclusion and exclusion criteria and the data were extracted and combined.Then meta-analysis was performed using version 5.3 of the RevMan software package.Results Eleven randomized and controlled trials involving 576 patients were included in the meta-analysis.Together,the data showed that swallowing training supplemented by neuromuscular electrical stimulation is significantly more effective than swallowing training alone in improving swallowing function.It reduces the risk of aspiration and improves quality of life.It does not,however,generally shorten the pharyngeal transmit time.Conclusions Swallowing training supplemented with neuromuscular electrical stimulation is a promising approach for treatment of post-stroke dysphagia and warrants further study.