Study on Blood Circulation Monitoring After the Tissue Transfer of Ultrathin or Conventional Anterolateral Thigh Flaps.

Background: This study was conducted to compare the incidence of postoperative complications related to blood circulation in the treatment of skin defects through the transfer of ultrathin anterolateral thigh (ALT) flaps or conventional ALT flaps.

Methods: Patients who received ultrathin ALT flap transfer (group A) and conventional ALT flap transfer (group B) due to skin defects at Peking University Shenzhen Hospital from January 2016 to January 2023 were included in this study. The postoperative incidence of ecchymosis, vascular crisis (artery or vein), and flap survival were compared between the 2 groups of patients.

Results: In group A, 27 patients recovered and 8 patients reported ecchymosis. In addition, 32 patients achieved flap survival, 1 patient had partial flap necrosis, and 2 patients had complete flap necrosis. In group B, 61 patients recovered and 6 patients reported ecchymosis. In addition, 65 patients achieved flap survival, 1 patient had partial flap necrosis, and 1 patient had complete flap necrosis. Compared with group B, the incidence of ecchymosis was significantly higher in group A (P < 0.05).

Conclusions: Postoperative blood circulation monitoring (especially ecchymosis) is an important part of postoperative nursing observation in the treatment of skin defects with ultrathin ALT flap transfer. There is no significant difference in the incidence of postoperative vascular crisis between ultrathin and conventional ALT flap transfer. However, the incidence of nonvenous crisis ecchymosis after ultrathin ALT flap transfer is significantly higher than that after conventional ALT flap transfer.