The effect of vacuum-assisted drainage on granulation tissue formation of infected soft tissue explosive injury in pig
- VernacularTitle:封闭负压引流对猪皮肤软组织爆炸伤感染创面肉芽组织生成的影响
- Author:
Jinqing LI
;
Shaozong CHEN
;
Xiaobing FU
- Publication Type:Journal Article
- Keywords:
blast injury;
wound healing;
the vacuum-assisted closure (VAC);
infection
- From:
Medical Journal of Chinese People's Liberation Army
2001;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the effect of vacuum-assisted drainage (VAC) technique on the granulation tissue formation of infected soft tissue explosive injury in pig. Methods 16 wounds produced by explosion with electric detonators,which were fixed on the skin of the shoulders and hips of 4 small white pigs. The wounds were divided into 2 groups randomly: in group A the wounds were treated with conventional method,and in group B the wounds were treated with VAC set with a pressure of -15kPa. All wounds were infected on the third day after explosion. The depth of wounds was measured,and specimens were talcen from wound bed,immediately before treatment,and 1,3,6,9,14,19,and 24 days after treatment. The specimens were bistopathologieally studied with HE staining to assess the wound healing process of the two groups. Furthermore,immunohistochemistry for Factor Ⅷ related antigen and Ki67 was done to estimate the number of vascular endothelial cells and proliferating cells. Results From 1 to 19 days after the treatment,the depth of the wounds in group B were shallower than those of group A ( P
