Stacked deep inferior epigastric perforator with sequential lumbar artery perforator flaps for bilateral breast reconstruction: A case report.

Breast size that can be reconstructed with a single flap is limited in thin patients who need bilateral autologous large-volume breast reconstruction. We present the case of a 39-year-old female with bilateral heterogeneous breast cancer. The patient underwent total mastectomy and radiation therapy on the left side and nipple sparing mastectomy on the right. We planned to use the stacked deep inferior epigastric perforator (DIEP) with sequential lumbar artery perforator (LAP) flaps because the patient's thigh was too thin and she refused using gluteal tissue. The flap was 10 cm wide at the abdomen, 5 cm wide at the waist, and 72 cm long overall. The DIEP and LAP flaps were harvested as one continuous flap and were folded onto each other to create a breast mound. The lumbar artery and vein were anastomosed to the distal stump of the deep inferior epigastric artery and vein (DIEA/V) intraflaps, and then, the proximal stump of the DIEA/V was anastomosed to the internal mammary artery and vein. The LAP flaps were placed deeply, whereas the DIEP flaps were placed superficially. Whole skin was de-epithelialized on the right side, and skin damaged by radiotherapy was released and replaced with abdominal skin on the left side. The flap survived fully, the shape of the reconstructed breasts was good, and the body line on the donor side was well maintained. We present the stacked DIEP with sequential LAP flaps as one of the options for bilateral breast reconstruction in thin patients with larger breast size.