PATHOLOGICAL STUDY ON GUNSHOT WOUND TRACK IN DOG UNDER HOT AND HUMID ENVIRONMENT
- VernacularTitle:高温高湿环境下犬肢体火器伤后伤道病理学改变
- Author:
Dongsheng ZHAO
;
Guoxian PEI
;
Kuanha WEI
- Publication Type:Journal Article
- Keywords:
military medicine;
tropical medicine;
wounds, gunshot;
pathology, surgical
- From:
Medical Journal of Chinese People's Liberation Army
1981;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
To investigate the pathological changes in gunshot wound track in limbs of dogs produced under a hot and humid environment, 8 dogs were randomly divided into two groups: hot and humid environment group (HHE) and normal environment group(NE). Gross examination, optical microscopic examination (OM), electron microscopic examination (EM) were performed, and ATP, ADP, AMP content, energy charge (EC) in the gunshot wounds were observed at 4, 8, 12, 24h after wounding. The results indicated that 6～8 h after the injury, the wound tracks and discolored area of tissue in HHE group were more distinguished and enlarged than those in NE group, and the swelling of wounded limbs was obvious. Some of the wounds began to be odoriferous. The signs of infection began to be obvious. While the wounds of NE group did not give off obvious odor of decay until 12～24h after the injury. Under OM and EM, necrosis and damage of muscle fibers in the wound tracts were more obvious in the HHE group than that in NE group, showing a tendency of deterioration. In contrast the changes in the injured tissues in NE group showed a tendency of improving. ATP content of the injured tissues in the contusion region of HHE group was lower than that of NE group at 8h, ATP content of tissues in the shock region of HHE group was decreased continuously and was lower than that of NE group at 12h. ADP content of tissues in the contusion area of HHE group was lower than that of NE group at 8h and also in shock area at 12h. AMP content of tissues in the contusion area of HHE group was higher than that of NE group at 12h, whereas EC of tissues in the contusion area of HHE group was lower than that of NE group at 8h and 12h. Histopathological changes in tissues in the gunshot wound were serious and deteriorated gradually in hot and humid environment. At the same time the energy storage of muscle tissue in the gunshot wound track was lower and decreased more remarkably in this environment. Therefore early and complete debridement of gunshot wounds inflicted in hot and humid environment should be emphasized.
