von Arnim, UlrikeBiedermann, LucAceves, Seema S.Bonis, Peter A.Collins, Margaret H.Dellon, Evan S.Furuta, Glenn T.Gonsalves, NirmalaGupta, SandeepHirano, IkuoLucendo, Alfredo J.Miehlke, StephanOliva, SalvatoreSchlag, ChristophSchoepfer, AlainStraumann, AlexVieth, MichaelBredenoord, Albert J.2023-04-262023-04-262023von Arnim, U., Biedermann, L., Aceves, S. S., Bonis, P. A., Collins, M. H., Dellon, E. S., Furuta, G. T., Gonsalves, N., Gupta, S., Hirano, I., Lucendo, A. J., Miehlke, S., Oliva, S., Schlag, C., Schoepfer, A., Straumann, A., Vieth, M., & Bredenoord, A. J. (2023). Monitoring patients with eosinophilic esophagitis in routine clinical practice—International Expert Recommendations. Clinical Gastroenterology and Hepatology, S1542356522011855. https://doi.org/10.1016/j.cgh.2022.12.0181542-3565https://hdl.handle.net/1805/32645Background & Aims There are no studies or recommendations on optimal monitoring strategies for patients with eosinophilic esophagitis (EoE). Our objective was to develop guidance on how to monitor EoE patients in routine clinical practice, on the basis of available clinical evidence and expert opinion. Methods A multidisciplinary, international group of EoE experts identified the following important three questions during several consensus meetings: why, by what means and when to monitor EoE patients. A steering committee was named and three teams were formed to review literature and to formulate statements for each topic. In a Delphi survey a level of agreement of ≥75% was defined as threshold value for acceptance. In a final conference, results were presented, critical points and comments on the statements were discussed and statements were rephrased/rewritten if necessary. Results 18 EoE experts (14 adult and pediatric gastroenterologists, 2 pathologists and 2 allergists) with a median of 21.7 years in clinical practice, mostly academic or university- based, completed the Delphi survey, which included 11 statements and a proposed algorithm for monitoring EoE patients. Each statement attained ≥75% agreement. Participants discussed and debated mostly about the statement concerning surveillance intervals for EoE patients with stable disease. Conclusions It was concluded that effective maintenance treatment probably reduces the development of EoE complications, and regular, structured and under certain conditions individualized clinical follow-up is recommended to assess disease activity while opening a window to monitoring side-effects, adjusting therapy and encouraging adherence to treatment. Follow-up should comprise symptom assessment and periodic or repeated endoscopy with histological assessment in specific EoE settings.en-USPublisher PolicyDelphidisease monitoringEosinophilic esophagitissurveillanceArticle