RESUMO
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.