关键词: 国际日间手术协会, 非住院手术, 日间手术, 聚类分析, 主题, 可视化, 热点

Abstract: Cluster analysis and evidence-based visualization based on hot topics in abstracts of  International Association for Ambulatory Surgery (IAAS)        YANG Si-jie*,YANG Ke-lu,TIAN Xiao-he,et al. *Ambulatory Surgery Center，Xijing Hospital，Air Force Military Medical University, Xi'an 710032，China
Corresponding authors：LIU Xiao-nan，E-mail:liuxnxjh@163.com；WANG Quan，E-mail:wangquan2013@126.com
Abstract    Objective    To summarize the current international hotspots and future research directions of ambulatory surgery and to provide a reference for clinical practice decision-making and subsequent research through the research topics clustering and the knowledge domain visualization map constructed based on the abstracts of the annual meetings of the International Association of Ambulatory Surgery（IAAS）.  Methods    The abstracts of six consecutive annual meetings of the IAAS（2009-2019）were retrieved（https：//www.iaas-med.com），subject terms were extracted and summarized by two researchers independently，and discrepancies were solved by the third researcher The VOS-viewer 1.6.11 software was used to perform clustering and time-series analysis on the countries, and research topics of the included abstracts to form a knowledge domain visualization map. Results    A total of 457 abstracts were included from six IAAS annual conferences during 2009 - 2019. The authors of the included abstracts came from 23 countries except for China， Hungary, India, Serbia, Chile, Mexico, Russia, and Slovenia, and the rest were developed countries. The total number of annual abstracts has declined and leveled off since 2011, and the majority of abstracts were from developed countries. The abstracts with the topic of general surgery, vascular surgery, and orthopedics took the most proportion（80%）in terms of the types of operation. The summary of day surgery could be divided into four parts compromising Management, Anesthesia, Surgery, and Nursing, and management research accounted for the largest proportion（38.7%）. Cluster analysis showed a total of 11 clusters including anesthesia selection and analgesia, patient management and informatization, quality control, quality assessment, daycare and nursing techniques, pre-anesthesia patient management, hernia-related surgery, comorbid disease-related risks, medical insurance payment reimbursement, emergency route of Day Surgery, Indian development model. Moreover,quality control, anesthesia management, and nursing in Day Surgery were the hot topics in this field. And the topic of Management accounts for the largest proportion, and the contribution of the developed countries（41.9%）was much higher than that of developing countries（18%）. Conclusion    The regional differences could be discovered in the development of ambulatory surgery worldwide in terms of the abstracts published in IAAS conferences. The developed countries in Europe and the United States have contributed most of the research. The promotion of Ambulatory Surgery in developing countries still has a long way to go. Daytime management such as quality control of daytime surgery, process optimization, clinical pathway and payment, anesthesia methods, and selection of anesthesia drugs, are still the current hot spots and future development trends.

Key words: International Association for Ambulatory Surgery, ambulatory surgery, day surgery, cluster analysis, topic, visualization, hot spots