BACKGROUND Since being declared as a pandemic on March 11,2020,coronavirus disease 2019(COVID-19)has profoundly influenced heart and lung transplant programs,impacting donor availability,patient management,and healthc...BACKGROUND Since being declared as a pandemic on March 11,2020,coronavirus disease 2019(COVID-19)has profoundly influenced heart and lung transplant programs,impacting donor availability,patient management,and healthcare resources.This study offers a citation-based review of the research output on this subject,seeking to understand how the transplant community has responded to these challenges.Through a review of literature from the beginning of the pandemic to early 2023,we evaluate the shifts in academic emphasis and the emerging trends in heart and lung transplantation during the COVID-19 period.AIM To assess the impact of COVID-19 on heart and lung transplantation research,highlighting key themes,contri-butions,and trends in the literature during the pandemic.METHODS We conducted an extensive search of the Web of Science database on February 9,2023.We employed the terms"transplant"and"transplantation",as well as organ-specific terms like"heart","cardiac",and"lung",combined with COVID-19-related terms such as"COVID-19","coronavirus",and"SARS-CoV-2".The search encompassed public-ations from March 11,2020 to February 9,2023.Data on authors,journals,countries,institutions,and publication types(articles,reviews,conference papers,letters,notes,editorials,brief surveys,book chapters,and errata)were analyzed.The data was visualized and processed with VOSviewer 1.6.18 and Excel.RESULTS We included 847 research items.There were 392 articles(46.3%)and 88 reviews(10.3%).The studies included were referenced 7757 times,with an average of 9.17 citations per article.The majority of the publications(n=317)were conducted by institutes from the United States with highest citations(n=4948)on this subject,followed by Germany,Italy,and France.The majority of papers(n=101)were published in the Journal of Heart and Lung Transplantation.CONCLUSION To the fullest extent of our knowledge,this is the first bibliometric study of COVID-19's impact on heart and lung transplantation to offer a visual analysis of the literature in order to predict future frontiers and provide an over-view of current research hotspots.展开更多
BACKGROUND The United States has witnessed significant advancements in the field of organ transplantation over the course of the last five decades,as demonstrated by a notable increase in the quantity of academic rese...BACKGROUND The United States has witnessed significant advancements in the field of organ transplantation over the course of the last five decades,as demonstrated by a notable increase in the quantity of academic research.The presence of a highly dynamic research environment necessitates continuous evaluations to maintain the integrity and progress of the field.AIM To evaluate the total output and thematic emphasis of transplant research conducted in the United States.METHODS On January 10,2023,we conducted a bibliometric search of United States research output in transplantation journals from the Web of Science database's Science Citation Index Expanded.We excluded editorials,meeting abstracts,and other non-article types.We analyzed annual trends,authors,institutions,articles,keywords,and countries collaborating with the United States,using VOSviewer 1.6.18 to create figures and tables.RESULTS The United States published 25956 papers(3078 reviews and 22878 articles)representing 37.7%of the world's scientific output.Canada emerged as the top collaborator with the United States,co-authoring 1263 articles.Leading institutions in United States transplantation research were the University of Pittsburgh(1749 articles),Mayo Clinic(1605 articles),Harvard Medical School(1549 articles),and Johns Hopkins University(1280 articles).The top three keywords with over 2000 occurrences were"recipients,""survival,"and"outcomes,"indicating a focus on graft and recipient outcome markers by United States researchers.CONCLUSION Our findings demonstrate the United States leadership in organ transplantation research,contributing significantly to the global scientific output in this field.However,opportunities exist for fostering expansive partnerships,particularly with developing countries.This study provides valuable insights into the transplantation research landscape in the United States,emphasizing the importance of ongoing evaluations to maintain and propel advancements in this critical medical discipline.The results may facilitate future collaborations,knowledge exchange,and the pursuit of innovative solutions in the realm of organ transplantation.展开更多
文摘BACKGROUND Since being declared as a pandemic on March 11,2020,coronavirus disease 2019(COVID-19)has profoundly influenced heart and lung transplant programs,impacting donor availability,patient management,and healthcare resources.This study offers a citation-based review of the research output on this subject,seeking to understand how the transplant community has responded to these challenges.Through a review of literature from the beginning of the pandemic to early 2023,we evaluate the shifts in academic emphasis and the emerging trends in heart and lung transplantation during the COVID-19 period.AIM To assess the impact of COVID-19 on heart and lung transplantation research,highlighting key themes,contri-butions,and trends in the literature during the pandemic.METHODS We conducted an extensive search of the Web of Science database on February 9,2023.We employed the terms"transplant"and"transplantation",as well as organ-specific terms like"heart","cardiac",and"lung",combined with COVID-19-related terms such as"COVID-19","coronavirus",and"SARS-CoV-2".The search encompassed public-ations from March 11,2020 to February 9,2023.Data on authors,journals,countries,institutions,and publication types(articles,reviews,conference papers,letters,notes,editorials,brief surveys,book chapters,and errata)were analyzed.The data was visualized and processed with VOSviewer 1.6.18 and Excel.RESULTS We included 847 research items.There were 392 articles(46.3%)and 88 reviews(10.3%).The studies included were referenced 7757 times,with an average of 9.17 citations per article.The majority of the publications(n=317)were conducted by institutes from the United States with highest citations(n=4948)on this subject,followed by Germany,Italy,and France.The majority of papers(n=101)were published in the Journal of Heart and Lung Transplantation.CONCLUSION To the fullest extent of our knowledge,this is the first bibliometric study of COVID-19's impact on heart and lung transplantation to offer a visual analysis of the literature in order to predict future frontiers and provide an over-view of current research hotspots.
文摘BACKGROUND The United States has witnessed significant advancements in the field of organ transplantation over the course of the last five decades,as demonstrated by a notable increase in the quantity of academic research.The presence of a highly dynamic research environment necessitates continuous evaluations to maintain the integrity and progress of the field.AIM To evaluate the total output and thematic emphasis of transplant research conducted in the United States.METHODS On January 10,2023,we conducted a bibliometric search of United States research output in transplantation journals from the Web of Science database's Science Citation Index Expanded.We excluded editorials,meeting abstracts,and other non-article types.We analyzed annual trends,authors,institutions,articles,keywords,and countries collaborating with the United States,using VOSviewer 1.6.18 to create figures and tables.RESULTS The United States published 25956 papers(3078 reviews and 22878 articles)representing 37.7%of the world's scientific output.Canada emerged as the top collaborator with the United States,co-authoring 1263 articles.Leading institutions in United States transplantation research were the University of Pittsburgh(1749 articles),Mayo Clinic(1605 articles),Harvard Medical School(1549 articles),and Johns Hopkins University(1280 articles).The top three keywords with over 2000 occurrences were"recipients,""survival,"and"outcomes,"indicating a focus on graft and recipient outcome markers by United States researchers.CONCLUSION Our findings demonstrate the United States leadership in organ transplantation research,contributing significantly to the global scientific output in this field.However,opportunities exist for fostering expansive partnerships,particularly with developing countries.This study provides valuable insights into the transplantation research landscape in the United States,emphasizing the importance of ongoing evaluations to maintain and propel advancements in this critical medical discipline.The results may facilitate future collaborations,knowledge exchange,and the pursuit of innovative solutions in the realm of organ transplantation.
