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A 75 years old man with previous aortic abdominal aneurysm surgery through a transverse laparotomy underwent bilateral internal mammary artery (BIMA) to coronary artery bypass grafting (CABG). He immediately thereafter developed a severe chest and upper abdominal walls ischemia with metabolic acidosis, and finally deep sternum wound infection and upper abdominal wall necrosis. He benefitted from sternal reconstruction and vaccum assisted treatment, with delayed pectus major flap reconstruction. Chest and abdominal wall infarction following BIMA harvesting is a very rare but life-threatening complication. Caution use of BIMA should be in order in patients with inferior epigastric artery flow impairment.