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  • Title: [Effect of different dressing materials in various combinations on wound microenvironment of donor site in burn patients].
    Author: Chen J, Su GL, Li Q, Tang ZJ, Su SJ, Shi JW.
    Journal: Zhonghua Shao Shang Za Zhi; 2009 Jun; 25(3):218-21. PubMed ID: 19842561.
    Abstract:
    OBJECTIVE: To investigate the effect of dressing materials in various combinations on burn wound microenvironment and healing condition. METHODS: Two hundred donor sites with wounds of 0.3 mm in depth in 186 burn patients, who needed skin grafting and admitted to our ward were enrolled in study, and they were divided into A (with dressing composed of alginate + cotton pad for donor area), B (with dressing composed of vaseline gauze + cotton pad for donor area), C (with dressing composed of alginate + foam dressing for donor area), D (with dressing composed of vaseline gauze + foam dressing for donor area) groups according to random table method. Effect of dressings on wound evaporation and pH value were observed. Bacterial colonization, degree of pain complained by patients after dressing change, and wound healing time in each group were compared. RESULTS: One hundred and eighty-four patients complied with the study, while 2 patients were excluded due to untimely falling-off of the dressing. Wound evaporation in A, B, C, D groups was (35.5 +/- 3.2), (31.3 +/- 2.8), (23.1 +/- 2.9), (18.1 +/- 2.3) mL x h(-1) x m(-2) respectively, among them B group showed optimal effect of keeping humidity (P < 0.01). Wound pH value in A, B, C, D groups was 7.22 +/- 0.06, 7.41 +/- 0.03, 7.05 +/- 0.03, 7.34 +/- 0.06, respectively, among them it was highest in B group. The positive rate of bacteria in D group was highest (22.4%), and lowest in C group (4.0%). Pain was lightest in C group (score was 0.98 +/- 0.12), and most serious in B group (score was 8.14 +/- 0.82). The shortest wound healing time was seen in C group (6.7 +/- 0.8 d), and longest in D group (15.6 +/- 3.5 d). CONCLUSIONS: Application of various dressings on similar wounds can produce different wound microenvironment, which is closely related to wound healing time. Compared with pH value, humidity is the more important factor for wound healing.
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