Sunday, December 27, 2009

Reading Notes: SIEA Flap



Superficial Inferior Epigastric Artery Flap

Features:

LOCATION: Vertical or Horizontal Flap
Vertical flaps may extend up to the costal margin.
Horizontal flaps extend from ipsilateral anterior superior iliac spine across midline to the lateral border of contralateral rectus.

SIZE: 15 x 30 cm
FLAP TYPE: Fasciocutaneous
PATTERN OF CIRCULATION: Type A

VASCULAR ANATOMY:
Dominant Pedicle: Superficial inferior epigastic artery and venae comitantes.
Regional Source: Superfical femoral artery and vein
Length: 4 to 6 cm
Diameter: 1 to 1.5 mm
Location The SIEA orginates from anterior surface of femoral artery 4 to 5 cm below inguinal ligament.

48% Common Origin with SCIA
10-15% Large SCIA without SIEA
42-47% Separate Orgins


Arc of Rotation:Cover defects in lower abdomen, groin, perineum, gentalia, upper thigh, and trochanter. As a tubed flap, may be used for upper extremity reconstruction.