Chandrashekar Byalekere Shivanna, Sriram Rashmi, Mysore Rajdeep, Bhaskar Sapnashree, Shetty Abhishek
Department of Dermatology, CUTIS Academy of Cutaneous Sciences, Bengaluru, Karnataka, India.
J Cutan Aesthet Surg. 2014 Apr;7(2):93-7. doi: 10.4103/0974-2077.138328.
Various treatment modalities including non-invasive methods such as chemical peels, topical retinoids, microdermabrasion, minimally invasive techniques such as microneedling, fractional lasers, microneedling radiofrequency devices and invasive procedures such as acne scar surgeries and ablative lasers are used for acne scars, each with its own unique advantages and disadvantages. This study is a retrospective assessment of efficacy and safety of microneedling fractional radiofrequency in the treatment of acne scars.
Thirty one patients of skin types III-V with moderate and severe facial acne scarring received four sequential fractional radiofrequency treatments over a period of 6 months with an interval of 6 weeks between each session. Goodman & Baron's acne scar grading system was used for assessment by a side by side comparison of preoperative and post- operative photographs taken at their first visit and at the end of 3 months after the last session.
Estimation of improvement with Goodman and Baron's Global Acne Scarring System showed that by qualitative assessment of 31 patients with grade 3 and grade 4 acne scars, 80.64% showed improvement by 2 grades and 19.35% showed improvement by 1 grade. Quantitative assessment showed that 58% of the patients had moderate, 29% had minimal, 9% had good and 3% showed very good improvement. Adverse effects were limited to transient pain, erythema, edema and hyperpigmentation.
Microneedling fractional radiofrequency is efficacious for the treatment of moderate and severe acne scars.
痤疮瘢痕的治疗方法多种多样，包括化学剥脱、外用维甲酸、微晶磨皮等非侵入性方法，微针、分次激光、微针射频设备等微创技术，以及痤疮瘢痕手术和剥脱性激光等侵入性手术，每种方法都有其独特的优缺点。本研究是对微针分次射频治疗痤疮瘢痕的疗效和安全性的回顾性评估。
31例III - V型皮肤、面部有中度和重度痤疮瘢痕的患者在6个月内接受了4次连续的分次射频治疗，每次治疗间隔6周。采用古德曼和巴伦痤疮瘢痕分级系统，通过对比患者首次就诊时和最后一次治疗后3个月时拍摄的术前和术后照片进行评估。
根据古德曼和巴伦全球痤疮瘢痕系统评估改善情况，对31例3级和4级痤疮瘢痕患者进行定性评估，结果显示80.64%的患者改善了2级，19.35%的患者改善了1级。定量评估显示，58%的患者改善程度为中度，29%为轻度，9%为良好，3%为非常好。不良反应仅限于短暂的疼痛、红斑、水肿和色素沉着。
微针分次射频治疗中度和重度痤疮瘢痕有效。
