Current Research on the Use of the Omental Flap in Breast Reconstruction and Post-Mastectomy Lymphedema: A Focus on Omental-Vascularized Lymph Node Transfer.

The novel use of the omental flap in breast reconstruction has been increasing in research popularity within the last few decades. This technique has its roots in the early 20th century as surgeons explored the use of the omentum for a variety of reconstructive purposes across various surgical subspecialties. The current literature shows evidence of the benefits of using the omentum in autologous breast reconstruction compared to the more traditional abdominal, flank, thigh, and gluteal donor flap reconstruction. This method introduces a viable option for patients that do not meet the criteria for the traditional autologous reconstruction techniques allowing for the restoration of more natural appearing breasts without the added complication of donor-site mortality. Additionally, the omentum, with its rich source of vascularized lymph nodes, has been studied as a potential source for lymph node transfer in the treatment of mastectomy-associated lymphedema. In this review, we highlight the most recent research on the current practices of omental-based breast reconstruction techniques and their use in postmastectomy lymphedema. We discuss the history and natural progression of the development of omental-based reconstruction as an autologous breast reconstruction technique, highlight the latest advances and challenges for the utility of the omental flap in current surgical procedures, and present future directions for the potential role of omental-based breast reconstruction in postmastectomy breast surgery.