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Background and aims: Liver transplant surgery has been performed in India for the last 25 years. We aimed to analyse the trends, characteristics, and key elements in the field of liver transplantation research from India. Methods: On April 23, 2023, we conducted a search of the Scopus database for the literature on liver transplantation research, using a well-defined search strategy. MS Excel and VOS viewer software programs were used to examine the articles for organisation, author, journal, keywords, and high-cited literature. Results: This analysis examined a total of 556 papers, which constituted only a 1.55% share of the global output. These papers involved 442 organizations, 1575 authors, and 147 journals. External funding was received in 4.13% and 23.56% were involved in international collaboration. Three Delhi-NCR organizations, namely the Medanta-The Medicity (n = 63), Institute of Liver & Biliary Sciences (n = 60), and Indraprastha Apollo Hospital (n = 48) led in publication productivity. M. Rela (n = 90) and A.S. Soin (n = 63) were the leading authors in publication productivity, while S. Sudhindran and P. Bhangui were the most impactful authors. Liver Transplantation (n = 96) and Journal of Clinical & Experimental Hepatology (n = 65) published the maximum number of these papers, whereas, Annals of Surgery and Journal of Hepatology led in the citation impact per paper. The most significant keywords were "Liver Transplantation" (n = 484), and "Living Donor" (n = 254). Only 1.80% (n = 10) of the papers were highly cited papers that received 50 to 142 citations and they together registered 69.9 citations per paper. Conclusion: Although the number of publications on liver transplantation from India started growing recently, it forms only 1.55% of the global report. There is an unmet need to increase government-supported research and multicenter collaborative studies at national and international levels for high-quality patient care.
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PURPOSE: This study aimed to examine India's orthopaedic research output during 2002-2021 to analyze the research characteristics and publication performances of leading organizations, authors, and cities, the core journals publishing research, broad subject areas, sub-specialties, and the classification by anatomical location, the subject areas of research using major keywords and the sources of funding and the extent of international collaboration. METHODS: India's orthopaedic publications data was identified and downloaded from the Scopus database ( https://www.scopus.com ) using a well-defined search strategy and keywords. RESULTS: India's 4606 publications grew at a 20.8% annual growth rate and averaged 11.3 citations per paper. The 10.4% and 16.3% share of India's papers received external funded support and were involved in international collaboration. The USA and UK (31.8% and 21.3%) represent the highest collaborative share in India's international collaborative publications. AIIMS-New Delhi and PGIMER-Chandigarh produced a larger proportion of articles (5.2% and 4.3%) among contributing organizations. In terms of authors, R. Vaishya and S. Rajasekaran are the most productive ones, contributing 1.6% and 1.1% share respectively. Clinical studies, paediatric sub-specialty, and knee & leg anatomical location accounted for the largest share of papers (32.2%, 10.8%, and 7.5%).The most frequent keywords co-occurrences were "Orthopaedic Surgery," "Hydroxyapatite," "Biocompatibility," "Orthopaedic Procedures," "Bone," "Surgical Techniques," "Biomaterials," and "Osteosynthesis." CONCLUSION: This study revealed the characteristics and trends of research and core publications from Indian authors and organizations identified in the last two decades. This research should provide useful insights into the research hotspots of India in the present, past, and future.