Abstract：
Premature infants\' gastric residual volume may be affected by position. This systematic review was conducted to examine the effect of lying position on the gastric residual volume of preterm newborns fed by gastric tube. Electronic databases (PubMed, MEDLINE, MEDLINE Complete, Academic Search Ultimate, CINAHL Complete, Cochrane, and Scopus) were searched for randomized controlled experimental or quasiexperimental studies in English published between 2011 and 2022 investigating the effect of one or more lying positions on gastric residual volume in premature newborns. The PICOS strategy was used in preparing and reporting the systematic review. A total of 304 articles were retrieved, and the full texts of 12 articles were evaluated for suitability. After eliminating the excluded articles, 10 articles were included in the analysis. The quality of evidence varied, with four studies judged to have poor quality whereas the remaining six were considered to range from moderate to good in quality. Based on the results obtained from the studies, it was determined that gastric residual volume was the least in the right lateral and prone positions and more in the left lateral and supine positions compared with the other two positions, with no difference between the two latter positions. The methodological differences, such as the evaluation of different positions, the timing of positioning and the duration of maintaining in the same position, and the measurement times of gastric residual volume made it difficult to reach a definitive proof. We concluded that high-evidence studies evaluating all positions are needed.
摘要：
早产儿胃残留量可能受体位影响。进行了这项系统评价，以检查卧位对胃管喂养的早产儿胃残留量的影响。电子数据库(PubMed，MEDLINE,MEDLINE完成,学术搜索终极，CINAHL完成,科克伦,和Scopus）搜索了2011年至2022年之间发表的英文随机对照实验或准实验研究，研究了一个或多个卧位对早产儿胃残留量的影响。PICOS策略用于准备和报告系统评价。共检索到304篇,并对12篇文章的全文进行了适用性评估。删除排除的物品后，分析中包括10篇文章。证据的质量各不相同，有四项研究被认为质量差，而其余六项被认为质量从中等到良好。根据从研究中获得的结果，经确定，与其他两个位置相比，右侧和俯卧位的胃残留量最小，左侧和仰卧位的胃残留量更多，后两种立场之间没有区别。方法上的差异，例如对不同职位的评估，定位的时间和保持在同一位置的持续时间，胃残余量的测量次数使其难以得出确切的证据。我们得出结论，需要评估所有职位的高证据研究。
