{"pk":16885,"title":"Trends of Regional Anesthesia Studies in Emergency Medicine: An Observational Study of Published Articles","subtitle":null,"abstract":"Introduction:\n Regional anesthesia (RA) has become a prominent component of multimodal pain management in emergency medicine (EM), and its use has increased rapidly in recent decades. Nevertheless, there is a paucity of data on how RA practice has evolved in the specialty. In this study we sought to investigate how RA has been implemented in EM by analyzing trends of published articles and to describe the characteristics of the published research.\n \nMethods:\n We retrieved RA-related publications from the SciVerse Scopus database from inception to January 13, 2022, focusing on studies associated with the use of RA in EM. The primary outcome was an analysis of trend based on the number of annual publications. Other outcomes included reports of technique diversity by year, trends in the use of individual techniques, and characteristics of published articles. We used linear regression analysis to analyze trends.\n \nResults:\n In total, 133 eligible publications were included. We found that overall 23 techniques have been described and results published in the EM literature. Articles related to RA increased from one article in 1982 to 18 in 2021, and the rate of publication has increased more rapidly since 2016. Reports of lower extremity blocks (60.90%) were published most frequently in ranked-first aggregated citations. The use of thoracic nerve blocks, such as the erector spinae plane block, has increased exponentially in the past three years. The United States (41.35%) has published the most RA-related articles. Regional anesthesia administered by emergency physicians (52.63%) comprised the leading field in published articles related to RA. Most publications discussed single-shot (88.72%) and ultrasound-guided methods (55.64%).\n \nConclusion: \nThis study highlights that the number of published articles related to regional anesthesia in EM has increased. Although RA research has primarily focused on lower extremity blocks, clinical researchers continue to broaden the field of study to encompass a wide spectrum of techniques and indications.","language":"en","license":{"name":"Creative Commons Attribution 4.0","short_name":"CC BY 4.0","text":"Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.\r\n\r\nNo additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.","url":"https://creativecommons.org/licenses/by/4.0"},"keywords":[{"word":"Regional anesthesia, Peripheral nerve block, Emergency medicine, Pain management, Trend analysis"}],"section":"Clinical Practice","is_remote":true,"remote_url":"https://escholarship.org/uc/item/1zn229t5","frozenauthors":[{"first_name":"Tou-YUuan","middle_name":"","last_name":"Tsai","name_suffix":"","institution":"Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Department of Emergency Medicine, Chiayi, Taiwan; Tzu Chi University, School of Medicine, Hualien, Taiwan","department":"None"},{"first_name":"Hsin-Tzu","middle_name":"","last_name":"Yeh","name_suffix":"","institution":"Chang Gung Memorial Hospital, Linkou Branch, Department of Emergency Medicine, Taoyuan, Taiwan","department":"None"},{"first_name":"Yu-Chang","middle_name":"","last_name":"Liu","name_suffix":"","institution":"Chi Mei Medical Center, Department of Emergency Medicine, Tainan, Taiwan","department":"None"},{"first_name":"Ching-Hsing","middle_name":"","last_name":"Lee","name_suffix":"","institution":"Chang Gung University College of Medicine, Chang Gung Memorial Hospital, Department of Emergency Medicine, Keelung, Taiwan","department":"None"},{"first_name":"Kuan-Fu","middle_name":"","last_name":"Chen","name_suffix":"","institution":"Chang Gung University, Clinical Informatics and Medical Statistics Research Center, Taoyuan, Taiwan; Chang Gung Memorial Hospital, Community Medicine Research Center, Keelung, Taiwan; Chang Gung Memorial Hospital, Department of Emergency Medicine, Keelung, Taiwan","department":"None"},{"first_name":"Eric","middle_name":"H.","last_name":"Chou","name_suffix":"","institution":"Baylor Scott & White All Saints Medical Center, Department of Emergency Medicine, Fort Worth, Texas; Baylor University Medical Center, Department of Emergency Medicine, Dallas, Texas","department":"None"},{"first_name":"Jen-Tang","middle_name":"","last_name":"Sun","name_suffix":"","institution":"Tzu Chi University, School of Medicine, Hualien, Taiwan; Far Eastern Memorial Hospital, Department of Emergency Medicine, New Taipei City, Taiwan","department":"None"},{"first_name":"Kuo-Chih","middle_name":"","last_name":"Chen","name_suffix":"","institution":"Taipei Medical University, Shuang Ho Hospital, Department of Emergency Medicine, New Taipei City, Taiwan","department":"None"},{"first_name":"Yi-Kung","middle_name":"","last_name":"Lee","name_suffix":"","institution":"Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Department of Emergency Medicine, Chiayi, Taiwan; Tzu Chi University, School of Medicine, Hualien, Taiwan","department":"None"},{"first_name":"Su Weng","middle_name":"","last_name":"Chau","name_suffix":"","institution":"Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Department of Emergency Medicine, Chiayi, Taiwan; Tzu Chi University, School of Medicine, Hualien, Taiwan","department":"None"}],"date_submitted":"2022-05-30T05:03:45Z","date_accepted":"2022-05-30T05:03:45Z","date_published":"2022-10-25T00:25:54Z","render_galley":null,"galleys":[{"label":"","type":"pdf","path":"https://journalpub.escholarship.org/westjem/article/16885/galley/8550/download/"}]}