title: Images in plastic surgery: the anatomy of macrovascular arteriovenous shunts and implications for abdominal wall free flaps.
abstract: With the increasing use of preoperative imaging of the abdominal vasculature prior to free flaps based on the abdominal wall, the identification of a previously undescribed anatomic structure has, that of large-vessel (macroscopic) arteriovenous communications, has emerged. These macrovascular arteriovenous shunts are observed in most patients, and provide a communication between the arterial perforators of the deep inferior epigastric artery and the superficial inferior epigastric vein. These communications provide vascular shunting occurring prior to capillary filling and have potentially profound clinical implications and therapeutic possibilities in a range of medical and surgical conditions. Although these have been demonstrated previously on computed tomographic angiography imaging, their macroscopic and microscopic anatomy has not been described. We present images in vivo, ex vivo, and histologically to highlight their anatomic features.
authors: Jack Brockhoff Reconstructive Plastic Surgery Research Unit, Department of Anatomy and Cell Biology, The University of Melbourne, Victoria, Australia. warrenrozen@hotmail.com
authors: Warren M
authors: WM
authors: Rozen
authors: Daniel
authors: D
authors: Chubb
authors: Mark W
authors: MW
authors: Ashton
authors: Iain S
authors: IS
authors: Whitaker
authors: Damien
authors: D
authors: Grinsell
mesh_terms: D034861:Abdominal Wall / Q000098:blood supply*; D001163:Arteriovenous Anastomosis / Q000033:anatomy & histology*; D019074:Epigastric Arteries / Q000033:anatomy & histology*; D058752:Free Tissue Flaps; D006801:Humans; D013518:Surgery, Plastic