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Title: The Impact of Early Positive Studies on the Evolution of Extracorporeal Albumin Dialysis Literature: A Bibliometric Analysis.
Austin Authors: Chaba, Anis;Warrillow, Stephen J ;Fisher, Caleb ;Maeda, Akinori;Spano, Sofia;Bellomo, Rinaldo 
Affiliation: Intensive Care
Department of Critical Care, The University of Melbourne, Melbourne, Victoria, Australia.;Department of Medicine and Surgery, The University of Melbourne, Melbourne, Victoria, Australia.;Data Analytics Research and Evaluation Centre, The University of Melbourne and Austin Hospital, Melbourne, Victoria, Australia.;Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Victoria, Australia.
Issue Date: 2024
Date: 2023
Publication information: Blood purification 2024; 53(4)
Abstract: Liver failure is a life-threatening condition characterized by the accumulation of metabolic toxins. Extracorporeal albumin dialysis (ECAD) has been promoted as a possible therapy. We employed bibliometric analysis to scrutinize the conceptual, intellectual, and social structure of the ECAD literature including its co-citation network and thematic analysis to explore its evolution and organization. We identified 784 documents with a mean of 30.25 citations per document in a corpus of 15,191 references. The average citation rate peaked in 1998 at 280.75 citations/year before a second 2013 peak of 54.81 citations/year and then progressively decreased to its nadir in 2022 (1.48 yearly citations). We identified four primary co-citation clusters, with the most impactful publications being small "positive" manuscripts by Mitzner et al. (2000) and Heemann et al. (2002) (Cluster 1). This first cluster had several relational citations with clusters 2 and 3, but almost no citation link with cluster 4 represented by Bañares et al. (2013), Saliba et al. (2013), and Larsen et al. (2016), with their three negative randomized controlled trials. Finally, the thematic map revealed a shift in focus over time, with inflammation and ammonia as recent emergent themes. This bibliometric analysis provided a transparent and reproducible longitudinal assessment of ECAD literature and demonstrated how positive studies with low levels of evidence can dominate a research field and overshadow negative findings from higher quality studies. These insights hold significant implications for future research and clinical practice within this domain.
DOI: 10.1159/000534915
Journal: Blood purification
Start page: 279
End page: 287
PubMed URL: 37906992
ISSN: 1421-9735
Type: Journal Article
Subjects: Albumin dialysis
Bibliometric analysis
Liver failure
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