Vertical tumor-positive resection margins and the risk of residual neoplasia after endoscopic resection of Barrett's neoplasia: a nationwide cohort with pathology reassessment.
Laurelle van TilburgEva P D VerheijSteffi Elisabeth Maria van de VenSanne N van MunsterBas L A M WeustenLorenza Alvarez HerreroWouter B NagengastErik J SchoonAlaa AlkhalafJacques J G H M BergmanRoos E PouwLindsey OudijkSybren L MeijerMarnix JansenMichail DoukasArjun Dave Kochnull nullPublished in: Endoscopy (2024)
After ER with R1v, 50% of patients had no residual neoplasia. Histological evaluation of ER margins appears challenging, as in this study 75% of documented R1v cases were confirmed during reassessment. Endoscopic reassessment 8-12 weeks after ER seems to accurately detect residual neoplasia and can help to determine the most appropriate strategy for patients with R1v.