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Long-Term Outcomes of Intragastric Endoscopic Mucosal Resection Using a Modified Buess Technique for Early Gastric Cancer

Background/Aims: The aim of this study was to clarify long-term outcomes of endoscopic mucosal resection (EMR) using a modified Buess technique for mucosal gastric cancer. Methods: The procedure included en bloc mucosal resection using a Buess-type rectoscope into the gastric lumen via a temporary gastrostomy under video camera guidance. We reviewed 5 patients who underwent this procedure between 1995 and 1997 with a single mucosal cancer of the stomach that was unsuitable for en bloc excision by endoscopic snare diathermy. Results: All tumors were superficial elevated types (type 0–IIa) located in the middle third and posterior wall of the stomach. Median maximum tumor diameter was 2.2 (range 1.1–3.5) cm. There was no operative mortality. One patient developed a hemorrhagic gastric ulcer postoperatively. All tumors histologically showed curative potential of the mucosal resection without margin involvement. During a median follow-up period of 64 (50–77) months, none of the patients developed local recurrence. One patient had an early gastric cancer that metachronously developed at another stomach site. Conclusion: Intragastric EMR using a modified Buess technique appears to be a useful treatment for cure of mucosal gastric cancer for a limited group of patients unsuitable for complete en bloc excision by endoscopic snare diathermy.