SIEA Flap-Superficial Inferior Epigastric Artery Flap

In some patients, half of the lower abdominal tissue can be supported by this superficial blood vessel located between the skin and abdominal wall fascia in the groin.  When present and of adequate size, the benefit of using this flap is that no incision is made in the abdominal fascia, and the muscle remains untouched.  It is truly a "skin only" operation, with no risk of hernia formation or abdominal wall weakness.  The disadvantage of this flap is that it cannot utilize more than one side of the lower abdominal tissue.