• Xinning Mi, Xiaoxiao Wang, Ning Yang, Yongzheng Han, Yue Li, Taotao Liu, Dengyang Han, Yi Yuan, Yiyun Cao, Chengmei Shi, Xiangyang Guo, Yang Zhou, and Zhengqian Li.
• Department of Anesthesiology, Peking University Third Hospital, No.49 North Garden Road, Haidian District, 100191, Beijing, China.
• BMC Anesthesiol. 2021 Jul 2; 21 (1): 186.

BackgroundIn line with aging populations and increased application of anesthesia and surgery, perioperative neurocognitive disorder (PND) has received growing attention worldwide. Considerable researches into PND are being conducted; however, the quantity and quality of such researches have not been reported. Through a retrospective bibliometric analysis, this study aims to identify and characterize the top 100 cited publications on PND.MethodsWe searched the Web of Science database to find the top 100 cited articles focusing on PND. We collected bibliographic information, including year of publication, country of origin, article type, published journal, citation count, and authorship. To determine changes with time, we compared older and newest articles.ResultsThe top 100 cited articles were published between 1955 and 2016; the number of citations ranged from 111 to 1248. The United States had the most published papers; clinical trial was the most common article type. The specialty journals of Anesthesiology and Anesthesia & Analgesia were the two most cited journals. Newest articles had a comparable number of citations to older articles, but the former had higher annual citation rates, greater funding disclosures, more focus on basic research, and more open access publications.ConclusionsThis study provides a comprehensive overview of the most cited articles and highlights the increasing attention on PND. High-quality clinical trials with a greater journal impact factor receive more citations. However, there has been a growth in the number of basic science studies as an area of research with respect to the pathogenesis of PND.

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