The effect of continuous double negative pressure drainage in the difficult refractory wound repair of artificial dermal stent
YE Maoqiu
LI Yinqing
ZHOU Junli
HUANG Xiaodong
NIU Zhanguo
HUANG Zhaolun
LI Jiawei
ZHONG Yu
YE Dongcheng
Abstract：Objective To study the effect of continuous double negative pressure drainage in the difficult refractory wound repair of artificial dermal stent.Methods From September 2023 to July 2024,50 patients with acute and chronic difficult refractory wounds treated in the Department of Burns and Plastic Surgery,Dongguan People's Hospital were selected as the study subjects.According to the random number table were divided into the observe group 25 cases(postoperative continuous double negative pressure drainage device on the artificial dermal stent wound)and the control group 25 cases(single continuous negative pressure drainage device on the artificial der-mal stent wound after surgery).Efficacy-related indicators,wound healing-related indicators,and secondary skin graft-related indicators were compared between the two groups.Results The daily secretion discharge of the observe group was more than the control group,and the plugging rate of the negative pressure device was lower than the control group,and the area of the artificial dermal stent was less than the control group(P＜0.05).The observe group of granulation growth coverage of 5 and 10 d after operation,the granulation growth coverage of artificial dermal stent and the vascular endothelial implantation rate under pathological biopsy HE staining were higher,while the infil-tration rate of inflammatory cells was lower than that of the control group(P＜0.05).The observe group had less time interval than the control group,while the survival of postoperative wounds was higher than the control group(P＜0.05).Conclusion The effect of continuous double negative pressure drainage in difficult refractory wound repair of artificial dermal stent is good,which can effectively promote wound heal-ing,accelerate the growth of granulation,and improve the survival rate of postoperative wound skin grafting,which is worth popularizing.
Keywords：Artificial dermal stentDifficult refractory woundContinuous double negative pressure drainageEffect
Publication Date：2025-07-15
Online Publishing Date：2026-03-18(First online date of this platform, not the publication date of the document)
Pages：4( 408-410,424 )