Global trends in research related to sleeve gastrectomy:A bibliometric and visualized study

BACKGROUND One of the most popular bariatric procedures is sleeve gastrectomy,and it has become significantly more common in recent years.AIM To evaluate the research activity in sleeve gastrectomy over the last two decades,and to visualize the hot spots and emerging trends in this type of bariatric surgeryusing bibliometric methods.METHODS The Scopus database was used to search for publications related to sleeve gastrectomy.The retrieved publications were reviewed in terms of year of publication,type of study,country of origin,institutions,journals,and citation patterns by using descriptive analysis.Collaboration network and term cooccurrence analysis were visualized by using VOSviewer software.RESULTS The search strategy yielded a total of 6508 publications on sleeve gastrectomy from 2001 to 2020.As regards the document type,the majority were articles(n=5230;80.36%),followed by reviews(n=544;8.36%).The top three countries are the United States,with 1983 publications(30.47%),followed by France(600;9.22%)and Italy(417;6.71%).The most cited publication was published in 2012 by Schauer et al in the New England Journal of Medicine(n=1435 citations).This publication found that weight loss was greater in the sleeve gastrectomy group than in the medical therapy group.Furthermore,this study demonstrated that 12 mo of medical therapy plus bariatric surgery greatly improved glycemic regulation in obese patients with uncontrolled type 2 diabetes compared with medical therapy alone.The focus of the current literature on sleeve gastrectomy was directed toward several themes such as morbidity and potential complications,the complexity of the procedure and different surgical approaches,and diabetes and body mass index in correlation to sleeve gastrectomy.CONCLUSION The number of sleeve gastrectomy publications has gradually grown over the last 20 years.This bibliometric analysis could help researchers better understand the knowledge base and research frontiers surrounding sleeve gastrectomy.In addition,future studies may focus on emerging research hotspots.

Global research production in neonatal abstinence syndrome: A bibliometric analysis

BACKGROUND Recently,neonatal abstinence syndrome(NAS)emerged as a significant global concern with a dramatic increase in healthcare expenditures.The incidence of the NAS has increased notably in the past decade and emergence as a global public health problem.AIM To evaluate the development and trend of global NAS research from 1958 to 2019 by bibliometric analysis.METHODS Analyzed aspects included publication output per year,language,document types,journals,countries/territories,h-index,authors,and top research priorities.The VOSviewer was used to determine the top research priorities,and trends,and to present bibliometric networks concerning various dimensions,such as coauthorship,authors,and countries.RESULTS A total of 1738 articles were retrieved in the Scopus database from 1958 to 2019.It was found that the great majority of the total NAS documents(n=1295)were original articles followed by reviews(n=268)and letters(n=48).The most productive countries in the NAS field were the United States(n=833),Canada(n=112),the United Kingdom(n=111),and Germany(n=77).Treatment and hospital outcomes in NAS,evidence-based nurse-driven interventions for the care of newborns with NAS,and a systematic reviews and network meta-analysis for therapeutic approaches of NAS were found in recent years(after 2010),compared with terms such as pathophysiology,mechanisms of NAS,and signs and symptoms in the early years.CONCLUSION Treatment and pediatric outcomes and the effectiveness of pharmacological treatment may be frontiers in the NAS field,and continued efforts from researchers are needed in those topics.

Global research production pertaining to gastrointestinal involvement in COVID-19:A bibliometric and visualised study

BACKGROUND Coronavirus disease 2019(COVID-19)is a global pandemic that can cause diarrhoea,nausea/vomiting,and abdominal pain,among other gastrointestinal(GI)symptoms.AIM To perform a bibliometric analysis of the global research production pertaining to GI involvement in COVID-19.METHODS The Scopus database was used to search the global literature on GI involvement in COVID-19 during 2020.A bibliometric review of these publications was also performed using VOSviewer.RESULTS Scopus had published 95615 documents on COVID-19 in all areas of research at the time of data collection.In total,1267 publications on the topic of GI and COVID-19 were identified.Research articles(n=606;47.83%),letters(293;23.13%),and reviews(186;14.68%)were the most popular types of documents.The most productive countries and institutions in this field were the United States and Huazhong University of Science and Technology.The most cited paper was Xiao et al,which was published in Gastroenterology as a brief communication,with 798 citations.This paper provides evidence for GI infection of COVID-19 and its possible faecal–oral transmission route.In the term cluster analysis,there were two frontiers in this field:GI manifestations among COVID-19 patients and the implications of COVID-19 for the gastroenterologist.CONCLUSION GI manifestations among COVID-19 patients and implications of COVID-19 for gastroenterologists were of interest,especially in the early stages of the pandemic.