Pudukadan David
Department of Dermatology, Jubilee Mission Medical College, Thrissur, India and Pudukadan's Dermalaser Centre, Thrissur, India.
Dermatol Surg. 2017 Jan;43 Suppl 1:S64-S69. doi: 10.1097/DSS.0000000000000894.
Noninvasive technologies for treating acne scars use radiofrequency (RF)-emitting microneedles for both mechanical disruption of fibrotic strands and heat-mediated collagen remodeling.
Efficacy and safety evaluation of electronically controlled noninsulated RF microneedling system on acne scars in patients with dark skin.
Nineteen patients, 24 to 51 years old, skin types III to V, with acne scars were enrolled in the study. Each patient had 3 treatment sessions at monthly intervals using a multisource RF treatment platform with a microneedle RF applicator. Efficacy was evaluated by the Goodman and Barron's Global Qualitative Acne Scarring System.
No bleeding points occurred during treatments. Post-treatment erythema was observed immediately after the treatment and lasted up to 10 hours after the treatment. Improvement of at least 1 acne scar grade was noted in 11 of 19 patients (57.9%) after 1 month and in 9 of 9 patients (100%) after 3 months.
The tested noninsulated electronically controlled RF microneedles were found to be safe and efficient in the treatment of atrophic acne scars in skin types III to V with minimal pain or downtime.
治疗痤疮瘢痕的非侵入性技术使用发射射频（RF）的微针来机械破坏纤维化条索并通过热介导进行胶原蛋白重塑。
评估电控非绝缘射频微针系统治疗深色皮肤患者痤疮瘢痕的疗效和安全性。
19名年龄在24至51岁、皮肤类型为III至V型且有痤疮瘢痕的患者纳入本研究。每位患者使用带有微针射频 applicator的多源射频治疗平台，每月进行1次，共进行3次治疗。通过古德曼和巴伦全球定性痤疮瘢痕系统评估疗效。
治疗期间未出现出血点。治疗后立即观察到治疗后红斑，持续至治疗后10小时。19名患者中有11名（57.9%）在1个月后痤疮瘢痕等级至少改善1级，9名患者中有9名（100%）在3个月后改善。
经测试，非绝缘电控射频微针在治疗III至V型皮肤的萎缩性痤疮瘢痕方面安全有效，疼痛或停工期最小。
