This scoping review was conducted to provide an overview of the evidence of point-of-care lung ultrasound (LUS) in emergency medicine. By emphasizing clinical topics, time trends, study designs, and the scope of the primary outcomes, a map is provided for physicians and researchers to guide their future initiatives. Which study designs and primary outcomes are reported in published studies of LUS in emergency medicine? We performed a systematic search in the PubMed/MEDLINE, Embase, Web of Science, Scopus, and Cochrane Library databases for LUS studies published prior to May 13, 2023. Study characteristics were synthesized quantitatively. The primary outcomes in all papers were categorized into the hierarchical Fryback and Thornbury levels. A total of 4,076 papers were screened and, following selection and handsearching, 406 papers were included. The number of publications doubled from January 2020 to May 2023 (204 to 406 papers). The study designs were primarily observational (n = 375 [92%]), followed by randomized (n = 18 [4%]) and case series (n = 13 [3%]). The primary outcome measure concerned diagnostic accuracy in 319 papers (79%), diagnostic thinking in 32 (8%), therapeutic changes in 4 (1%), and patient outcomes in 14 (3%). No increase in the proportions of randomized controlled trials or the scope of primary outcome measures was observed with time. A freely available interactive database was created to enable readers to search for any given interest (). Observational diagnostic studies have been produced in abundance, leaving a paucity of research exploring clinical utility. Notably, research exploring whether LUS causes changes to clinical decisions is imperative prior to any further research being made into patient benefits.

中文翻译：

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急诊医学中的护理点肺部超声：利用交互式数据库进行范围界定审查

本次范围审查旨在概述急诊医学中床旁肺部超声 (LUS) 的证据。通过强调临床主题、时间趋势、研究设计和主要结果的范围，为医生和研究人员提供了一张地图来指导他们未来的计划。已发表的 LUS 急诊医学研究报告了哪些研究设计和主要结果？我们在 PubMed/MEDLINE、Embase、Web of Science、Scopus 和 Cochrane 图书馆数据库中对 2023 年 5 月 13 日之前发表的 LUS 研究进行了系统检索。对研究特征进行了定量综合。所有论文的主要结果均分为 Fryback 和 Thornbury 等级。共筛选论文4,076篇，经筛选和手工检索，纳入406篇论文。从 2020 年 1 月到 2023 年 5 月，出版物数量翻了一番（论文 204 篇增至 406 篇）。研究设计主要是观察性（n = 375 [92%]），其次是随机（n = 18 [4%]）和病例系列（n = 13 [3%]）。主要结局指标涉及 319 篇论文 (79%) 的诊断准确性、32 篇论文 (8%) 的诊断思维、4 篇论文 (1%) 的治疗变化以及 14 篇论文 (3%) 的患者结果。随着时间的推移，没有观察到随机对照试验的比例或主要结局指标的范围有所增加。创建了一个免费的交互式数据库，使读者能够搜索任何给定的兴趣（）。观察性诊断研究已经大量开展，而探索临床实用性的研究却很少。值得注意的是，在对患者利益进行进一步研究之前，必须研究探索 LUS 是否会导致临床决策的改变。