Ramesh M, Gopal Mg, Kumar Sharath, Talwar Ankur
Department of Dermatology, Kempegowda Institute of Medical Sciences Hospital, Bangalore, India.
J Cutan Aesthet Surg. 2010 May;3(2):97-101. doi: 10.4103/0974-2077.69021.
Despite the many advances, scarring, particularly acne or pimple scarring, does not have a satisfactory treatment. A new armamentarium in this field is this recently devised matrix-tunable radiofrequency technology, which utilizes radiofrequency emission in the treatment of acne scars.
To evaluate the efficiency of the new matrix-tunable radiofrequency technology in patients with acne scars of varying sizes.
A prospective study of 30 randomly selected patients with acne scars was carried out.
Thirty healthy patients with different types of acne scars - ice pick, box and rolling type - were randomly selected. The scars were either shallow or deep, varied in size from 2 to 20 mm and ranged in number from 10 to 50. These patients were first treated with broad-spectrum antibiotics and local exfoliating agents (topical tretinoin 0.025%) and then subjected to matrix-tunable radiofrequency technology. Each scar was treated at intervals of 1 month. A maximum of four such sittings were carried out. Patients were followed-up every 15 days. Results were noted at the end of 2 months and 6 months. Improvement was assessed by using the visual analog scale (VAS) at 2 months and 6 months, and results were noted in terms of percentage improvement of the whole face by calculating an average of percentage improvement on the basis of interviews of the patient and his/her accompanying relatives. The visual analog scaling was performed by means of high-resolution digital photographs taken at the baseline and at each subsequent visit.
The VAS improvement in scars ranged from 10 to 50% at the end of 2 months to 20 to 70% at the end of 6 months. Of the 30 patients of acne scars, the cosmetic result was excellent (>60% improvement) in four, good (35-60% improvement) in 18 and moderate to poor (<35% improvement) in eight. A few patients reported burning sensation and a mild sunburn-like sensation for about 1 h after treatment. The patients reported a pinkish tone for 2-3 days. Importantly, with the help of some slight make up, all the 30 patients could return to work the following day.
Matrix-tunable radiofrequency technology is a safe and economically viable option for the dermatologists for the treatment of acne scars, because of the effective results coupled with a low downtime.
尽管取得了诸多进展，但瘢痕形成，尤其是痤疮或痘痘瘢痕，仍缺乏令人满意的治疗方法。该领域的一种新手段是最近研发的矩阵可调射频技术，它利用射频发射来治疗痤疮瘢痕。
评估新型矩阵可调射频技术对不同大小痤疮瘢痕患者的疗效。
对30例随机选取的痤疮瘢痕患者进行前瞻性研究。
随机选取30例患有不同类型痤疮瘢痕（冰锥型、箱型和滚轮型）的健康患者。瘢痕有浅有深，大小从2毫米至20毫米不等，数量从10个至50个不等。这些患者首先接受广谱抗生素和局部剥脱剂（外用0.025%维甲酸）治疗，然后接受矩阵可调射频技术治疗。每个瘢痕每隔1个月治疗一次，最多进行4次这样的治疗。患者每15天接受一次随访。在2个月和6个月结束时记录结果。在2个月和6个月时使用视觉模拟量表（VAS）评估改善情况，并通过计算患者及其陪同亲属访谈中获得的改善百分比平均值，以全脸改善百分比的形式记录结果。视觉模拟评分通过在基线及每次后续就诊时拍摄的高分辨率数码照片进行。
瘢痕的VAS改善情况在2个月末为10%至50%，在6个月末为20%至70%。在30例痤疮瘢痕患者中，4例的美容效果极佳（改善>60%），18例良好（改善35% - 60%），8例中度至较差（改善<35%）。少数患者在治疗后约1小时报告有烧灼感和轻微晒伤样感觉。患者报告皮肤呈粉红色2 - 3天。重要的是，借助一些轻微化妆，所有30例患者第二天即可恢复工作。
矩阵可调射频技术对皮肤科医生来说是一种安全且经济可行的治疗痤疮瘢痕的选择，因为其效果显著且停工期短。
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