Objective: To investigate the effectiveness of local injection of autologous platelet-rich plasma (PRP) in treatment of diabetic foot ulcer.
Methods: Between October 2017 and October 2018, 90 diabetic foot ulcer patients who met the selection criteria were randomly divided into 3 groups: PRP injection group (group A, PRP was injected and hydrogel dressing covered the wounds), PRP covered group (group B, PRP gel and hydrogel dressing covered the wounds), and the control group (group C, hydrogel dressing covered the wounds), 30 cases in each group. There was no significant difference in gender, age, injured side, disease duration, preoperative glycosylated hemoglobin, wound size, and Wagner grading between groups (P>0.05). The frequency of treatments and hospitalization day in all groups and the total amount of PRP application in groups A and B were recorded. The wound healing condition was recorded during the treatment, and the wound healing rate was calculated at 3 months after the first debridement.
Results: The frequency of treatments in groups A, B, and C were (10.2±0.8), (11.4±0.6), (12.5±0.5) times, respectively. The total amount of PRP application of groups A and B were (306±24) and (342±18) mL, respectively. There was no significant difference in the frequency of treatments and the total amount of PRP application between groups (P>0.05). The hospitalization days of groups A, B, and C were (40.5±1.8), (62.1±2.3), and (88.6±1.4) days, respectively, showing significant differences between groups (P<0.05). In the course of treatment, the necrosis and exudation of the wounds gradually reduced, the areas of wounds gradually reduced; and the above conditions of group A were significantly better than groups B and C, and group B was better than group C. At 3 months after the first debridement, the wound healing rates of groups A, B, and C were 93.2%±0.8%, 52.1%±1.1%, and 21.3%±1.3%, respectively, with significant differences between groups (P<0.05).
Conclusion: PRP can effectively promote the repair of diabetic foot ulcer. The effectiveness of local injection of PRP is superior to the local coverage.
目的: 探讨局部注射自体富血小板血浆（platelet-rich plasma，PRP）治疗糖尿病足溃疡的疗效。.
方法: 将 2017 年 10 月—2018 年 10 月收治且符合选择标准的 90 例糖尿病足溃疡患者随机分为 3 组：PRP 注射组（A 组，创面及创周局部注射 PRP+水凝胶敷料覆盖创面）、PRP 覆盖组（B 组，PRP 凝胶+水凝胶敷料覆盖创面）和对照组（C 组，单纯水凝胶敷料覆盖创面），每组 30 例。3 组患者性别、年龄、侧别、病程及术前糖化血红蛋白、创面面积、Wagner 分级等一般资料比较，差异均无统计学意义（P>0.05），具有可比性。比较 3 组患者治疗次数、住院时间及 A、B 组 PRP 使用总量。治疗期间观察创面愈合情况，首次清创术后 3 个月测算创面愈合率。.
结果: A、B、C 组治疗次数分别为（10.2±0.8）、（11.4±0.6）、（12.5±0.5）次，A、B 组 PRP 使用总量分别为（306±24）、（342±18）mL，组间比较差异均无统计学意义（P>0.05）。A、B、C 组住院时间分别为（40.5±1.8）、（62.1±2.3）、（88.6±1.4）d，差异有统计学意义（P<0.05）。治疗过程中，3 组创面坏死渗出均逐渐减少，创面面积逐渐缩小；A 组均明显优于 B、C 组，B 组优于 C 组。首次清创术后 3 个月，A、B、C 组创面愈合率分别为 93.2%±0.8%、52.1%±1.1%、21.3%±1.3%，组间比较差异均有统计学意义（P<0.05）。.
结论: PRP 能有效促进糖尿病足溃疡创面修复，而且 PRP 局部注射疗效优于 PRP 凝胶覆盖。.
Keywords: Platelet-rich plasma; diabetic foot; local injection; ulcer; wound repair.