Microsurgical breast reconstruction is a highly precise procedure that involves the breast microsurgeon taking skin and fat (a “flap”) from elsewhere in the body (“donor site”) and transplanting it to the chest to make a new breast mound. This technique is able to use your own healthy tissue while at the same time minimizing damage to the area of the body where tissue has been removed. The advantages are it encourages healing, minimizes scarring, and creates a more natural-appearing breast. There are many donor site options for microsurgical breast reconstruction but the most common is to use tissue from the abdomen as either a DIEP or SIEA flap. The free TRAM flap is another, less commonly-used option.
What Is Microsurgical Breast Reconstruction?
The DIEP (Deep Inferior Epigastric Artery Perforator) flap and the SIEA (Superficial Inferior Epigastric Artery) flap are techniques that take only skin and fat from the lower abdomen, sparing the underlying muscle. The decision to do a DIEP flap vs. a SIEA flap is often made during the operation and depends on the size of the blood vessels. If possible, a SIEA flap is done, as this will mean a shorter surgery. If, however, the blood vessels are too small then a DIEP flap is necessary as the DIEP blood vessels are consistently robust.
The abdomen is usually the preferred choice for the donor site because:
- Many women have spare skin and fat along the lower abdomen
- Scars tend to be well-hidden
- Women like the “tummy tuck” effect it gives
There are advantages and disadvantages to every form of reconstruction and these will be discussed with you by your surgeon before the surgery.










