摘要
我们观察了烧伤肉芽创面 pH 值与植皮成活的关系,并对肉芽创面 pH 值的相应部位与组织菌量,菌种做了比较。实验证实;①最适宜植皮成活的肉芽创面的 pH 值在7.2～7.5之间;②肉芽创面的 pH 值受组织菌量菌种的影响,大肠杆菌,金黄色葡萄球菌感染的创面组织菌量≥10~7/克组织.创面的 pH 值呈酸性(6.7或以下),而绿脓杆菌组织菌量超过10~8/克组织,创面的 pH 值呈碱性(8.0);③正确的创面处理是菌量减少,pH 值恢复生理值是提高植皮成活的重要措施.
The relationship between pH of granulation of burn wound and take rate of skin graft was presented.The bacteria in the granulation tissue were also quantified.The results show- ed:(1)The optimal pH of granulation wound for the take of skin graft is 7.2-7.5;(2) pH of granulation of burn wound is related to quantity and species of bacteria in the granulation tissue.The wound pH is 6.7 or lower when the number of Escherichiaoli or Staphylococcus aureus is over 10~7/gm of granulation tissue.The wound pH is 8.0 when the number of Pseudomonas aeruginosa is 10~8/gm of granulation tissue.Because the measure- ment of wound pH is rapid,simple and noninvasive,it might be useful in predicting the take rate of skin graft.
