J Card Surg. 2020;17. wileyonlinelibrary.com/journal/jocs © 2020 Wiley Periodicals LLC | 1 DOI: 10.1111/jocs.14941 ORIGINAL ARTICLE Top 100 cited manuscripts in aortic valve replacement: A bibliometric analysis Shwe Oo MRCS, MBBS, PgCert (ClinEd) 1 | Ka Hay Fan 2 | Yuti Khare 2 | Ka Siu Fan 3 | Jeremy Chan MB BCh, BAO, PgDip (ClinEd) 4 | Chon Meng Lam MB BCh 5 | Sheung Heng Daniel Lai 3 | Lok Yin Ada Kwan 3 1 Department of Cardiothoracic Surgery, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK 2 Faculty of Medicine, Imperial College London, London, UK 3 Department of Medical Education, University of London, London, UK 4 Department of Cardiothoracic Surgery, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK 5 Department of General Surgery, Cardiff and Vale University Health Board, Cardiff, UK Correspondence Jeremy Chan, MB, BCh, BAO, PgCert, Department of Cardiothoracic Surgery, University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK. Email: jeremychan@doctors.org.uk Abstract This bibliometric analysis aims to identify publications and highlight the key areas that have shaped modern clinical practices for aortic valve replacement (AVR). In this paper, the top 100 most cited manuscripts for AVR are analyzed. The Thomson Reuters Web of Science database was searched using the terms aortic valve replacement,”“AVR, sAVR,”“tAVR,or TAVI.The results were ranked by citation number and the top 100 articles were further analyzed by evaluating the subject, author, journal, year of pub- lication, institution, and country of origin. Thirtythousand and eight hundred eligible papers were examined, with an accumulation of 81 851 citations in total and a mean citation of 819 per manuscript (ranged: 3444180). The New England Journal of Medicine had the most manuscripts whereas Circulation had the most citations. The number of citations has also significantly increased for articles published after 2000.The most cited manuscript highlighting the management of valvular heart disease, was written by Baumgartner et al By providing the most influential references, this work serves as a comprehensive guide to topics of interest in the field of AVR. KEYWORDS aortic valve replacement, bibliometric analysis, citations 1 | INTRODUCTION With aortic valve replacement (AVR) becoming increasingly im- portant due to the rise in cardiovascular diseases among the ageing population, there has been a corresponding increase in the relevant literature. An expansion of relevant literature was also witnessed after the introduction of transcatheter AVR (trans- catheter aortic valve implantation [TAVI]) as an alternative treatment for aortic valve diseases. Hence, identifying important and useful works on the topic is becoming increasingly difficult. Citation is received when a publication is referenced by another peerreviewed article. Works which have a great scientific impact are more likely to be cited. The number of citations a publication has reflects its impact on scientific progress as well as the influ- ence of its journal of publication. Bibliometric citation analysis is a method used to identify note- worthy manuscripts amongst the plethora of publications whilst quanti- fying the importance of each paper. Citation analysis involves ranking and evaluating an article based on the number of citations it has, which serve to rank the scientific impact of both the article itself and its journal of publication. Although there is no single best method for determining the importance of a scientific publication, the use of bibliometric analysis is generally accepted as an appropriate method. Many surgical specialities including pediatrics, general surgery and cardiothoracic surgeryhave employed citation rank analysis to identify the most influential papers. 13 To date, there has not been a study to determine the most im- portant manuscripts on AVR. Citation bibliometrics provides insight into how our understanding of AVR, and its use, have evolved. This research aims to analyze the most impactful papers on AVR and to help identify the most relevant materials for future authors.