Hemodynamic alterations in the transferred tissue to lower extremities

✍ Scribed by Hiroyuki Sakurai; Takashi Yamaki; Masaki Takeuchi; Kazutaka Soejima; Taro Kono; Motohiro Nozaki

• Book ID: 102510785
• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 115 KB
• Volume: 29
• Category: Article
• ISSN: 0738-1085
• DOI: 10.1002/micr.20570

✦ Synopsis

Abstract

A higher incidence of failure has been reported for free flaps transplanted to the lower extremities. However, the physiological background of this phenomenon has not been elucidated. We reviewed the 3‐day postoperative hemodynamic data for 103 free flaps, including the in situ venous pressure (N = 103), arterial pressure (N = 53), and surface blood flow (N = 42). The cases were divided into two groups based on the recipient site, i.e., lower extremity (the LE group: N = 29) and the other (non‐LE group: N = 74). The venous pressure was significantly higher in the LE group (26.6 ± 2.2 vs. 14.8 ± 1.2 mmHg), whereas the arterial pressure immediately after surgery was lower than the non‐LE group. The hemodynamic data within the transferred tissues demonstrated significant differences between groups, especially in the early postoperative period. There is a possibility that the high venous pressure may aggravate the poor perfusion in tissues transferred to the lower extremities. © 2008 Wiley‐Liss, Inc. Microsurgery, 2009.