Objective: To investigate the clinical effect of the giant deep inferior epigastric artery paraumbilical perforator flap in repairing the circular high-voltage electric burn wounds on the wrist. Methods: A retrospective observational study method was used. From September 2016 to October 2021, thirteen male patients (aged 20-43 years) with annular high voltage (10-100 kV) electrical burns on the wrist were admitted to the Beijing Jishuitan Hospital. At the early stage after injury, the patient's wrist was subjected to incision, tension reduction and debridement, with the wound area after debridement being 27 cm×16 cm-32 cm×19 cm; in 12 patients with vascular injury, the radial or ulnar artery was reconstructed by great saphenous vein transplantation, with the length of 15-25 cm; the wrist wound was repaired by free transplantation of the deep inferior epigastric artery paraumbilical perforator flap (if the wound was giant, the lower abdominal flap carrying other perforators was used), with the area of 30 cm×19 cm-35 cm×20 cm. The donor site was repaired by direct suture+skin grafting or relay flap transplantation. After surgery, the survival of flap in recipient area, as well as survival of the skin or flap in donor site were observed. During follow-up, the appearances of the flap in recipient area and the recovery of hand function, as well as the healing of donor site, occurrence of abdominal wall hernia, and scar in skin graft area were observed. Results: After surgery, all the 13 patients' paraumbilical perforator flaps survived. Among them, 3 patients had subcutaneous fat necrosis at the distal end of the wrist flap, and the wound had mild infection, which healed after re-expansion and dressing change. All the skin grafts in the donor site of 10 patients survived, and the flaps in the donor site of 3 patients survived well. The patients were followed up for 6 months to 3 years. The flaps in recipient area were in good shape, 8 cases had partial recovery of hand function, and 5 cases had loss of finger flexion function; the donor site of abdominal flap healed well with no abdominal hernia occurred, and the skin graft site had no obvious scar hyperplasia and was soft in texture. Conclusions: Early vascular reconstruction after injury, together with free transplantation of the giant deep inferior epigastric artery paraumbilical perforator flap are effective in repairing circular high-voltage electrical burn wounds on the wrist.
目的： 探讨巨大腹壁下动脉脐旁穿支皮瓣修复腕部环状高压电烧伤创面的临床效果。 方法： 采用回顾性观察性研究方法。2016年9月—2021年10月，北京积水潭医院收治13例腕部环状高压（10~100 kV）电烧伤男性患者（年龄20~43岁）。伤后早期，对患者腕部行切开减张术、清创术，清创后创面面积为27 cm×16 cm~32 cm×19 cm；对12例血管存在损伤者，采用长度15~25 cm大隐静脉移植重建桡动脉或尺动脉；采用腹壁下动脉脐旁穿支皮瓣（若创面巨大，须携带其他穿支的下腹部皮瓣）游离移植修复腕部创面，皮瓣切取面积为30 cm×19 cm~35 cm×20 cm。供瓣区采用直接拉拢缝合+皮片移植修复或接力皮瓣移植修复。术后，观察受区皮瓣成活情况、供瓣区皮片或皮瓣成活情况。随访时，观察受区皮瓣外形及手功能恢复情况、供瓣区愈合及是否发生腹壁疝与移植皮片区瘢痕等情况。 结果： 术后，13例患者脐旁穿支皮瓣均成活，其中3例患者腕侧皮瓣远端皮下脂肪坏死，创面存在轻度感染，经再次扩创+换药后愈合；10例患者供瓣区移植皮片全部成活，3例患者供瓣区接力皮瓣存活良好。随访6个月~3年，受区皮瓣外形良好，手功能部分恢复者8例，手指屈曲功能丧失者5例；腹部供瓣区愈合良好，无腹壁疝发生，其中移植皮片区无明显瘢痕增生且质地柔软。 结论： 伤后早期行血管重建+巨大腹壁下动脉脐旁穿支皮瓣游离移植修复腕部环状高压电烧伤创面，效果良好。.