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The right gastroepiploic artery (RGEA) is used in coronary artery bypass grafting (CABG). However, the treatment of gastric cancer after CABG using the RGEA is complex, as stopping coronary blood flow from the RGEA may cause lethal myocardial ischemia. Adequate treatment must strike a balance between the curability and safety. Case presentation: The patient was a 79-year-old man with advanced gastric cancer who had previously undergone CABG with the RGEA. It was impossible to perform curative gastrectomy with preservation of the RGEA. Thus, percutaneous coronary intervention was performed to revascularize the native right coronary artery. The patient then started chemotherapy using oxaliplatin and S-1. After four courses of chemotherapy, the patient underwent robotic distal gastrectomy with D2 lymphadenectomy, including regional lymph node dissection around the RGEA. The RGEA was cut after a clamp test confirmed that there was no ST change. Conclusion: In patients who develop gastric cancer after CABG using the RGEA, percutaneous coronary intervention of the native coronary artery is useful when resection of the RGEA is required to dissect the no. 6 lymph node. Robotic gastrectomy is a surgical option in such cases.

Robotic Distal Gastrectomy for Advanced Gastric Cancer After Coronary Artery Bypass Grafting Using the Right Gastroepiploic Artery