Objective To compare the effects of gastric residual volume (GRV) set at different thresholds on intensive care patients receiving enteral nutrition (EN),so as to inform clinical practice.Methods Controlled clinical trials involving different GRV thresholds in ICU patients undergoing EN were retrieved from multiple electronic databases (including Cochrane Library,PubMed,Ovid Medline,Web of Science,CBM,CNKI,Wanfang Data,and VIP).Quality of the retrieved studies was evaluated for data extraction,and meta-analysis was performed.Results Four randomized controlled trials and one clinically controlled trial were included in the study,with a total of 658 subjects.Results of the meta-analysis suggested no statistically significant difference between the group with GRV threshold≥250 ml and the one with GRV threshold＜250 ml in the rates of pneumonia (OR =1.19,95％ CI =0.77-1.82,P =0.43),aspiration.(OR =1.59,95％ CI =0.42-6.03,P=0.50),vomiting (OR=1.35,95％ CI=0.48-3.80,P=0.57),reflux (OR=1.29,95％ CI=0.58-2.88,P=0.53),and diarrhea (OR=1.36,95％ CI=0.87-2.13,P=0.17).Nutrient intake and several other outcome measures were unable to be included in the meta-analysis for either the scarcity of studies or inconsistency in the measures adopted,and descriptive analysis was therefore employed instead.Conclusion There was no significant difference between the two groups in terms of complications,but the group with GRV threshold≥250 ml had higher intake of EN.

Objective To investigate the current status of emotional labor of ICU nurses and its influence on job burnout.Methods Totally 253 ICU nurses of three comprehensive third-grade class-A hospitals were investigated using the general information questionnaire and nurses' emotional labor scale and job burnout scale.Results The average score of emotional labor was 3.59±0.67.The scores of deep acting,expression of genuine emotion and surface acting were 4.67±0.86,3.37±0.91 and 3.26±0.86.There was a relationship between the factors of emotional labor and job burnout.The surface acting had positive prediction effect on emotional exhaustion(β=0.317,P＜0.01) and depersonalization(β=0.292,P＜0.01),and negative effect on personal achievement (β=-0.144,P＜0.05).Deep acting had negative predictive effect on depersonalization(β=-0.283,P＜0.01) and positive prediction effect on personal accomplishment (β=0.345,P＜0.01).Conclusion ICU nurses have moderate levels of emotional labor,and the deep acting score is the highest between three dimensions.The surface acting and deep acting can predict job burnout,and managers of hospital should pay attention to the education and training of emotional labor for ICU nurses.

Objective To evaluate the clinical effects of heated humidified high flow nasal cannula oxygen therapy on post-extubation intensive care unit(ICU)patients. Methods A computerized search was performed through Cochrane Library,EMBASE,PubMed,Elsevier,CNKI,Wanfang Database, SinoMed for randomized controlled trial(RCTs) which studied the effects of clinical effects of heated humidified high flow nasal cannula oxygen therapy on post-extubation ICU patients. Two reviewers separately searched the articles, evaluated the quality of the literatures, extracted date according to the inclusion and exclusion criteria. RevMan5.3 was used for Meta-analysis. Results Five RCTs were included involving 982 patients in the study. The Results of meta-analysis showed that the HFNC group was lower than COT group on the re-intubation rate (OR=0.39, 95% CI 0.25-0.62, P<0.05). About oxygenation index, comfort level and toleration of patients, HFNC group was superior to the COT group. Two groups had no significant differences(P>0.05)on post-extubation respiratory failure(OR=0.85,95% CI 0.35-2.09),respiratory infection(OR=0.69,95% CI 0.36-1.34),hospital length of stay(MD=0.51,95%CI-0.02-1.03), mortality of hospital (OR=0.81,95% CI 0.39-1.69). Conclusions The use of HFNC oxygen therapy can reduce there-intubation rate,improve oxygenation index,comfort level and tolerance on post-extubation ICU patients, while HFNC group has no significant impact on the post-extubation respiratory failure, respiratory infection, hospital length of stay, mortality of hospital compared with COTgroup. However, in view of the quantity and quality of study. More RCTs should be conducted to verify the results.

Objective? To explore the risk factors of incontinence-associated dermatitis(IAD) in intensive care uni(t ICU) patients, so as to provide evidence for early clinical prevention of IAD. Methods? The relevant literature about IAD in ICU patients were retrieved from multiple electronic databases including Cochrane library, PubMed, Ovid Medline, Web of Science, CBM, CNKI, Wanfang Data and VIP from buiding database to November 2018. The Meta-analysis was performed after searching databases, extracting data and assessing quality of included studies using the software of RevMan 5.3. Results? Finally, 14 articles were included with totally 691 case groups, and 1 377 cases in the control group with 2 068 subjects, the incidence of IAD was 20.00%-50.00%. The results of Meta-analysis indicated that feve[r OR=1.79, 95%CI (1.43-2.26), P＜0.05], diabetes[OR=2.73, 95%C(I 1.77-4.21), P＜0.05], the use of antibiotics[OR=2.45, 95%C(I 1.71-3.53), P＜ 0.05], level of albumin[OR=-3.81, 95%C(I -4.61- -3.00), P＜ 0.05], Acute Physiology and Chronic Health EvaluationⅡ(APACHEⅡ) score[OR=1.70, 95%C(I 0.06-3.33), P＜0.05], fecal incontinence[OR=1.80, 95%C(I 1.07-3.03), P＜ 0.05], incontinence frequency (＞ 3 times/day) [OR=1.86, 95%CI(1.56-2.22), P＜ 0.05]and watery stoo[l OR=2.22, 95%CI(1.81-2.73), P＜0.05]significantly associated with the onset of IAD. Through the sensitivity analysis of the combined effect of the fixed effect model and the random effect model, it was found that the combined effect values were close, indicating that the analysis results were robust and credible. Conclusions? According to the present evidence, the risk factors of IAD in ICU patients are fever, diabetes, antibiotics, low albumin level, high APACHE score, fecal incontinence, incontinence frequency (＞ 3 times/day) and watery stool. Medical staff should pay attention to these risk factors in clinical practice, and actively implement targeted preventive measures to reduce the incidence of IAD in ICU patients and improve the quality of nursing practice.