Abstract
Background
Endoscopic ultrasound (EUS) is useful for detecting depth of invasion and nodal involvement in patients with early Barrett’s neoplasia (EBN), precluding endoscopic management. This study aimed to determine whether the lesion morphology of the EBN shown on high-resolution endoscopy predicts EUS and histologic tumor stage.
Methods
Retrospective series from two tertiary referral centers were studied. Patients with EBN referred for EUS evaluation before treatment were identified, and data were collected from endoscopies, a database, and case notes. All patients had high-resolution endoscopy followed by radial EUS.
Results
This study included 50 patients (22 men) with a median age of 69 years (interquartile range, 60–79 years). Visible lesions in the Barrett’s segment were described as Paris types 0–1 (n = 9), 0–IIb (n = 12), 0–IIa (n = 12), 0–IIa + IIc (n = 6), and 0–IIc (n = 5). Of the 50 patients, 46 (92%) had either EMR (n = 17), esophagectomy (n = 23), or both (n = 6). All 12 patients (100%) with Paris 0–IIb lesions had T0/T1 m staging on EUS confirmed with resection histology. The sensitivity for EUS T-staging for Paris classification was 71.4% for type 0–I, 100% for type 0–IIb, 83% for type 0–IIa, 66.7% for type 0–IIa + IIc, and 66.7% for type IIc. Overall, 8 (17%) of the 46 patients were understaged and 2 (4%) were overstaged. For detecting submucosal invasion, EUS had a sensitivity of 66%, a specificity of 93%, a negative predictive value of 85%, and a diagnostic accuracy of 84.4%.
Conclusion
Submucosal invasion is detected by EUS for 26% of patients with EBN. The value of EUS staging before resection for type 0–IIb early Barrett’s cancer (flat lesions) is limited because 100% of these lesions are limited to the mucosa. For the management algorithm in this selected cohort, the use of EUS should be reconsidered.
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Disclosures
Titus Thomas, David Gilbert, Phillip Kaye, and Guru Prasad Aithal have no conflicts of interest or financial ties to disclose. Krish Ragunath has received speaker honorariums, educational grants, and research support from Olympus-Keymed and Cook, UK, and Ian Penman has received educational support from Olympus-Keymed and Cook, UK.
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Thomas, T., Gilbert, D., Kaye, P.V. et al. High-resolution endoscopy and endoscopic ultrasound for evaluation of early neoplasia in Barrett’s esophagus. Surg Endosc 24, 1110–1116 (2010). https://doi.org/10.1007/s00464-009-0737-3
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DOI: https://doi.org/10.1007/s00464-009-0737-3