Bacterial growth characteristics in craniocerebral gunshot wound of cat in a hot and humid environment

Abstract

Abstract: Objective To investigate the growth behavior of characteristics in craniocerebral gunshot wound of cats in a hot and humid environment. Methods Twenty-three cross-bred cats were randomly divided into 4 groups: group A, the gunshot wound control group at normal temperature, in which tissue sampling was performed immediately after the wounding; group B, another gunshot wound control group at normal temperature, in which the samples were taken 6 h after the wounding; group C, the gunshot wound group subjected to a hot and humid environment, in which the tissue samples were obtained 6 h after the wounding; group D, the control group without undergoing the wound. The tissues from the wound tract and the surrounding tissues were sampled for bacterial culture and counting. Results The bacterial counts of the tissues from the wound tract, the tissues within 5 mm and within 5-10 mm from wound tract varied insignificantly between groups A, B and C (P>0.05). In each group, the bacterial counts declined in the tissues as the distance of the sampling sites from the wound tract increased (P<0.01). The bacterial counts of the tissues from the wound tract and within 5 mm from the wound tract in group A, B and C were significantly different from those in group D (P<0.01). Conclusion Hot and humid environment does not significantly affect the bacterial growth in the craniocerebral gunshot wound within the first 6 h, which is a safe period against rapid bacterial growth and suitable for debridement.

CLC Number:

GUO Yan-wu¹, ZHU Hong-sheng², XU Ru-xiang¹. Bacterial growth characteristics in craniocerebral gunshot wound of cat in a hot and humid environment[J]. Journal of Southern Medical University, 2004, 24(02): 201-203.

References

[1] Shahid MS, Hatle L, Mansour H, et al. Echocardiographic and Doppler study of patients with heatstroke and heat exhaustion[J].Int J Card Imaging, 1999, 15(4): 279-85.
[2] 李利平,马恩庆.烧伤创面细菌定量方法与意义[J].中国烧伤创疡杂志,1998,(4):53-4.Li LP, Ma EQ. Quantification of bacteria in burn wounds and its significance[J]. Chin J Burn Wound Surf Ulcer, 1998, (4): 53-4.
[3] Henderson B, Poole S, Vilson M. Bacteria-cytokine interactions in health and disease[M]. London: Portland Press, 1998.43-55.
[4] Millar MR, Linton CJ, Sherriff A. Use of a continuous culture system linked to a modified Robbins device or flow cell to study attachment of bacteria to surfaces[J]. Methods Enzymol, 2001,337: 43-62.
[5] 蒋和田,刘荫秋,张米川,等.颌面部高速投射物伤区软组织感染的细菌学研究[J].中华创伤杂志,1997,13(3):155-7.Jiang HT, Liu YQ, Zhang MC, et al. Bacteriological study in soft tissues infection of maxillofacial wound by high velocity missile[J].Chin J Trauma, 1997, 13(3): 155-7.
[6] 赵东升,裴国献,魏宽海,等.高温高湿环境犬肢体火器伤细菌学定量观察[J].第一军医大学学报,2001,21(1):8-9.Zhao DS, Pei GX, Wei KH, et al. Quantitative bacteriological study of gunshot wound in the limbs of dogs in hot and humid environment[J]. J First Mil Med Univ/Di Yi Jun Yi Da Xue Xue Bao, 2001, 21(1): 8-9.
[7] Matthews MA, Carey ME, Soblosky JS, et al. Focal brain injury and its effects on cerebral mantle, neurons, and fiber tracks[J]. Brain Res, 1998, 794(1): 1-18.
[8] 魏宽海,裴国献,郑磊,等.高温高湿环境肢体火器伤后细菌培养及菌群分析[J].第一军医大学学报,2002,22(1):20-1.Wei KH, Pei GX, Zheng L, et al. Bacterium culture and flora analysis of gunshot wound on limbs of dogs in hot and humid environment[J]. J First Mil Med Univ/Di Yi Jun Yi Da Xue Xue Bao, 2002, 22(1): 20-1.
[9] 朱红胜,郭燕舞,徐如祥.高温高湿环境下猫颅脑火器伤后生命体征变化特点[J].中华神经医学杂志,2003,2(4):274-7.Zhu HS, Guo YW, Xu RX. Features of vital signs of cats with craniocerebral missile wound in the environment of high temperature and humidity[J]. Chin J Neuromed, 2003, 2(4): 274-7.