Clinical management of liver cyst infections: an international, modified Delphi-based clinical decision framework.

Liver cyst infections often necessitate long-term hospital admission and are associated with considerable morbidity and mortality. We conducted a modified Delphi study to reach expert consensus for a clinical decision framework. The expert panel consisted of 24 medical specialists, including 12 hepatologists, from nine countries across Europe, North America, and Asia. The Delphi had three rounds. The first round (response rate 21/24 [88%]) was an online survey with questions constructed from literature review and expert opinion, in which experts were asked about their management preferences and rated possible management strategies for seven clinical scenarios. Experts also rated 14 clinical decision-making items for relevancy and defined treatment outcomes. During the second round (response rate 13/24 [54%]), items that did not reach consensus and newly suggested themes were discussed in an online panel meeting. In the third round (response rate 16/24 [67%]), experts voted on definitions and management strategies using an online survey based on previous answers. Consensus was predefined as a vote threshold of at least 75%. We identified five subclassifications of liver cyst infection according to cyst phenotypes and patient immune status and consensus on episode definitions (new, persistent, and recurrent) and criteria for treatment success or failure was reached. The experts agreed that fever and elevated C-reactive protein are pivotal decision-making items for initiating and evaluating the management of liver cyst infections. Consensus was reached on 26 management statements for patients with liver cyst infections across multiple clinical scenarios, including two treatment algorithms, which were merged into one after comments. We provide a clinical decision framework for physicians managing patients with liver cyst infections. This framework will facilitate uniformity in the management of liver cyst infections and can constitute the basis for the development of future guidelines.

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Declaration of interests JH has received a grant from Deutsche Forschungsgemeinschaft—German Research Foundation. JC has received support from Secretaria d'Universitats i Recerca del Departament d'Economia i Coneixement (Agency for Management of University and Research Grants 2021; SGR 01331), Instituto Carlos III (PI22/01234) co-funded by the EU; a research grant by Asociación Española Estudio del Hígado (2022–23); and consulting fees, honoraria, and support for travel or attending meetings from Astellas, Chiesi, and Novartis. MS has received a grant from the Dutch Kidney Foundation (19OK002 and 23OK1044). MCH received a research grant from Camarus Pharmaceuticals. Hôpital Beaujon, Clichy, France, received, on behalf of MR, consulting fees from Quantum Surgical. MR has received honoraria from Guerbet, Angiodynamics, AstraZeneca, General Electric, Terumo, and Servier. VV has received consulting fees from Guerbet; honoraria from Canon Medical, GE Healthcare, Roche, and Sirtex; payment for expert testimony from Bayer, Guerbet, Sirtex, Boston Scientific, and Quantum Surgical; support for attending meetings or travel from Canon Medical, GE Healthcare, Roche, and Sirtex; and is Scientific Director of European School of Radiology without financial compensation. PS has received grants from Arrowhead, Grifols, CSL Behring, Vertex, and Dicerna; consulting fees from Biomarin, Intellia, Dicerna, NovoNordisk, GSK, Ono, and Takeda; honoraria from Advanz, Sanofi, CSL Behring, Grifols, and Sobi; support for attending meetings or travel from CSL Behring, Takeda, and Biogen; participates on data and safety monitoring boards for Albireo, Dicerna, Takeda, Biomarin, Intellia, and Sobi; has a leadership role in Alpha1 Global and Alpha1-Deutschland; and received materials from Takeda. RTa received grants from Chronix Biomedical/Oncocyte; consulting fees from MSD (2022), Tiefenbacher AEG (2022), Chiesi (2023), Pierre Fabre (2023), and Chronix Biomedical/Oncocyte (2023); speaker fees from Orphalan, Biotest, Alexion, and Chiesi; is co-inventor of a patent of Hannover Medical School, Hanover, Germany (autoantibodies tests against HIP1R to diagnose autoimmunhepatitis in adults and children; European patent number 18789434.0); and has received provision of consumables from Innova and Euroimmun. RTo is President-elect of European Renal Association. TJGG received grants from the Dutch Digestive Foundation and Gilead for the development of mylivercoach and received travel support from AbbVie to attend International Liver Congress 2022. VC received honoraria from Ipseon and Albireo. On behalf of JPHD, Radboudumc received a research grant from AbbVie. JPHD acts as a board member of the European Reference Network RARE-Liver and principal investigator of the POSITANO study by Camarus. MAL received grants from the Dutch Digestive Foundation, Vaillant fonds, and NVGE Gastrostart. All other authors declare no competing interests.