Clinical efficacy of micro-plasma radiofrequency combined with local electron-beam radiation therapy in treatment of keloids

Objective To study the clinical efficacy of micro-plasma radiofrequency with joint electron-beam radiation treatment for keloids. Methods A total of 15 patients with keloids over half a year were treated with single time micro-plasma radiofrequency technology by roller tip at 80-100 watts. The hypofractionated electron-beam was used, with 9 Gy dose per time covering the scar with a 1 cm margin, within 24 hours and 1 week after the micro-plasma treatment. The Vancouver Scar Scales (VSS) were assessed before and 6 months after the treatment. Patients＇ satisfaction and the adverse reactions were evaluated 6 months after the treatment. Results There was astatistically significant difference between the mean VSS of 15 patients pre- and 6 months posttreatment (from 11.73±1.12 to 3.87±2.53, P<0.05). The degree of improvement was: excellent in 1 case, good 10 cases, fair 3 cases, and poor 1 case. Patients＇ assessment was: extremely satisfied in 6 cases, satisfied 6 cases, approximately satisfied 2 cases and dissatisfied 1 case. The adverse reactions included hyperpigmentation within the radiation field on the anterior chest wall in 1 case and delayed healing of 1 patient＇s scar wound. Conclusions Micro-plasma radiofrequency combined with electron-beam radiation therapy is highly effective and safe on keloids with good clinical application value. Key words: Keloid; Micro-plasma; Radio frequency; Radiotherapy; Electron beam