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Endoscopic ablation is increasingly used to treat high-grade dysplasia (HGD) and intramucosal carcinoma (IMC) in patients with Barrett esophagus (BE). Although this approach is highly effective, it cannot cure cancers that have metastasized to lymph nodes. Endoscopic mucosal resection (EMR) — the standard of care for T staging to guide further treatment of these patients — unfortunately cannot always detect lymph node involvement. As such, many surgeons recommend esophagectomy instead of EMR and ablation, citing high rates of unexpected lymph node metastasis. However, reported rates of metastasis have varied widely.
To estimate the frequency of lymph node metastases in patients with BE and HGD or IMC, investigators performed a systematic rev…