The procedure consists of taking skin and fat from the abdomen, together with an artery and a vein to keep the tissue alive, and transplanting it to the chest area of the same patient.
The artery and vein that feed the tissue (the deep inferior epigastric perforators, or artery and vein) are grafted to the internal mammary artery and vein under microscope at the edge of the sternum, between the ribs, so that the blood flow to the transplanted tissue (the DIEP flap) is recovered.
The skin, fat and vessels are removed without damage to the abdominal wall muscles (avoiding hernias, eventration, bulging and weakening of the abdominal wall), and furthermore, the procedure is less painful than traditional techniques.