CO2点阵激光联合A型肉毒毒素注射技术治疗面部外伤后手术缝合 瘢痕的临床观察

目的 观察CO2点阵激光联合A型肉毒毒素注射技术治疗面部外伤后手术缝合瘢痕的治疗效果及 安全性。方法 选取2019年7月-2021年1月苏北人民医院医学美容科就诊的60例面部外伤后手术缝合瘢痕患 者，采用随机数字表法分为试验组和对照组，各30例。对照组予以CO2点阵激光治疗，试验组在CO2点阵激 光治疗后予以A型肉毒毒素局部注射，比较两组温哥华瘢痕量表（VSS）评分、临床疗效、不良反应发生情 况及患者满意度。结果 两组治疗后1、6个月VSS权重评分低于治疗前，且试验组低于对照组，差异有统计 学意义（P＜0.05）；试验组治疗后1个月治疗总有效率高于对照组，差异有统计学意义（P＜0.05）；两组 治疗后6个月治疗总有效率比较，差异无统计学意义（P＞0.05）；试验组满意度高于对照组，差异有统计 学意义（P＜0.05）；两组色素沉着发生率比较，差异无统计学意义（P＞0.05）。结论 CO2点阵激光联合A 型肉毒毒素注射技术治疗面部外伤后手术缝合瘢痕的疗效确切，可改善瘢痕外观，且不增加不良反应发生 几率，应用安全性较高。

Clinical Observation of CO2 Lattice Laser Combined with Botulinum Toxin A Injection Technique in the Treatment of Surgical Suture Scar After Facial Trauma

Objective To observe the therapeutic effect and safety of CO2 lattice laser combined with botulinum toxin A injection technology in the treatment of surgical suture scar after facial trauma. Methods From July 2019 to January 2021, 60 patients with surgical suture scar after facial trauma in the Department of Medical Aesthetics of North Jiangsu People'' s Hospital were randomly divided into experimental group and control group, with 30 cases in each group. The control group was treated with CO2 lattice laser, and the experimental group was treated with local injection of botulinum toxin type A after CO2 lattice laser treatment. The Vancouver scar scale (VSS) score, clinical efficacy, adverse reactions and patient satisfaction were compared between the two groups. Results The VSS weight scores of the two groups at 1 and 6 months after treatment were lower than those before treatment, and those in the experimental group was lower than those in the control group, the difference was statistically significant (P<0.05). The total effective rate of the experimental group was higher than that of the control group 1 month after treatment, and the difference was statistically significant (P<0.05); there was no significant difference in the total effective rate between the two groups 6 months after treatment (P>0.05). The satisfaction of the experimental group was higher than that of the control group, and the difference was statistically significant (P<0.05). There was no significant difference in the incidence of pigmentation between the two groups (P>0.05). Conclusion CO2 lattice laser combined with botulinum toxin type A injection technique is effective in the treatment of surgical suture scar after facial trauma, which can improve the appearance of scar without increasing the probability of adverse reactions and has high application safety.