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  • Title: Preliminary results of multicenter questionnaire study on long-term outcomes of curative endoscopic submucosal dissection for early gastric cancer.
    Author: Oda I, Oyama T, Abe S, Ohnita K, Kosaka T, Hirasawa K, Ishido K, Nakagawa M, Takahashi S.
    Journal: Dig Endosc; 2014 Mar; 26(2):214-9. PubMed ID: 23826719.
    Abstract:
    BACKGROUND AND AIM: There are a number of published reports on long-term outcomes of endoscopic submucosal dissection (ESD) for early gastric cancer (EGC), but most reports are from single centers with median follow-up periods shorter than 5 years. This questionnaire study investigated long-term outcomes of curative ESD for EGC at six Japanese institutions with follow-up rates of at least 90% over a minimum 5-year period. METHODS: All consecutive patients with initial-onset EGC who underwent ESD through December 2006 at the six institutions were included in our study. The questionnaire covered pathological curability and long-term outcomes of patients with curative resections or curative resections for expanded indications over follow-up periods of at least 5 years. RESULTS: There were 3788 patients with initial-onset EGC including 1710 (45.1%) patients with curative resections and 1289 (34.0%) patients with curative resections for expanded indications. The remaining 789 (20.8%) patients had non-curativeresections. Altogether, 1601 (93.6%) patients with curative resections and 1205 (93.5%) patients with curative resections for expanded indications were successfully followed up for at least 5 years. No recurrences were reported in any of the 1601 patients with curative resections whereas three recurrences (0.2%) were reported in the 1205 patients with curative resections for expanded indications. Gastric cancer-related deaths occurred in seven (0.2%) of the 2806 patients with curative resections or curative resections for expanded indications including six patients with metachronous gastric cancer-related deaths. CONCLUSION: This questionnaire study's results indicated favorable long-term outcomes for patients with curative resections or curative resections for expanded indications.
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