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Abstract
Background: The Extracorporeal Treatments in Poisoning (EXTRIP) workgroup was formed to provide recommendations on the use of extracorporeal treatments (ECTR) in poisoning. Here, we present our results for digoxin. Methods: After a systematic literature search, clinical and toxicokinetic data were extracted and summarized following a predetermined format. The entire workgroup voted through a two-round modified Delphi method to reach a consensus on voting statements. A RAND/UCLA Appropriateness Method was used to quantify disagreement, and anonymous votes were compiled and discussed in person. A second vote was conducted to determine the final workgroup recommendations. Results: Out of 435 articles screened, 77 met inclusion criteria. Only in-vitro, animal studies, case reports and case series were identified yielding a very low quality of evidence for all recommendations. Based on data from 84 patients, including six fatalities, it was concluded that digoxin is slightly dialyzable (level of evidence = B), and that ECTR is unlikely to improve the outcome of digoxin-toxic patients whether or not digoxin immune Fab (Fab) is administered. Despite the lack of robust clinical evidence, the workgroup recommended against the use of ECTR in cases of severe digoxin poisoning when Fab was available (1D) and also suggested against the use of ECTR when Fab was unavailable (2D). Conclusion: ECTR, in any form, is not indicated for either suspected or proven digoxin toxicity, regardless of the clinical context, and is not indicated for removal of digoxin-Fab complex.
Acknowledgements
We would like to acknowledge the tremendous work of our dedicated translators: Marcela Covica, Alexandra Angulo, Ania Gresziak, Samantha Challinor, Martine Blanchet, Gunel Alpman, Joshua Pepper, Lee Anderson, Monique Cormier, Andreas Betz, Tetsuya Yamada, Nathalie Eeckhout, Matthew Fisher, Ruth Morton, Denise Gemmellaro, Nadia Bracq, Olga Bogatova, Sana Ahmed, Christiane Frasca, Katalin Fenyvesi, Timothy Durgin, Helen Johnson, Martha Oswald, Ewa Brodziuk, David Young, Akiko Burns, Anna Lautzenheiser, Banumathy Sridharan, Charlotte Robert, Liliana Ionescu, Lucile Mckay, Vilma Etchart, Valentina Bartoli, Nathan Weatherdon, Marcia Neff, Margit Tischler, Sarah Michel, Simona Vairo, Mairi Arbuckle, Luc Ranger, Nerissa Lowe, Angelina White, Salih Topal, John Hartmann, Karine Mardini, Mahala Bartle Mathiassen, Anant Vipat, Gregory Shapiro, Hannele Marttila, and Kapka Lazorova. We also acknowledge the important contribution from our librarians and secretarial aids: Marc Lamarre, David Soteros, Salih Topal, Henry Gaston, and Brenda Gallant.
Disclosure statement
The authors declare that they have no conflict of interest financial or otherwise related to this work.
Funding information
Funding for EXTRIP was obtained from industry in the form of unrestricted educational grants. These funds were used solely for expenses related to literature retrieval, translation of publications, and for reimbursement of conference calls and travel expenses for attendance at EXTRIP meetings. A list of EXTRIP sponsors can be found on www.extripworkgroup.org. There was no industry input into meeting organization, scientific content, development, or publication of the recommendations. Furthermore, industry presence at meetings was not allowed, nor was industry awareness or comment on the recommendations sought or accepted. Complete financial disclosure for each EXTRIP member can be found on www.extrip-workgroup.org.