Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
Lasers Surg Med. 2024 Aug;56(6):574-580. doi: 10.1002/lsm.23811. Epub 2024 Jun 18.
Therapeutic dogma has been to treat acne scars no less than 6 months after isotretinoin (ITN) cessation.
To evaluate the safety and efficacy of fractional radiofrequency (FRF) in patients treated concurrently with ITN.
We conducted a prospective randomized control 3-arm comparative trial to evaluate the treatment of acne scars. Patients received one of three treatment options: (A) ITN and FRF concurrent treatment, (B) ITN monotherapy, and (C) FRF 6 months post-ITN treatment. Patients in the FRF cohorts received three monthly sessions. Patients were followed for adverse effects up to 6-9 months post-FRF treatment. Final cosmesis was scored by three independent dermatologists using two scales: the Echelle d'Evaluation Clinique des Cicatrices d'Acne (ECCA) and an internal 5-point investigator's scale, indicating the percentage of improvement. Subjective analyses by patients were also assessed.
Objective and subjective analyses revealed improvement in the ITN-FRF cohort, which was superior to the delayed FRF cohort and the ITN monotherapy cohort. Specifically, the concurrently treated cohort (ITN-FRF) had a significant reduction in acne scar volume from baseline mean (151.1 ± 44.7 to 97.0 ± 31.2, p < 0.005), outperforming both the delayed FRF and monotherapy ITN treatment cohorts, respectively (155.4 ± 37.8 to 122.0 ± 46.2, 144.6 ± 82.8 to 132.4 ± 62.7). Additionally, the concurrently treated cohort demonstrated improved ECCA scores (36.8 ± 15.5), significantly better than the ITN monotherapy cohort (101.5 ± 20.1, p < 0.01).
Limited patient sample size: 38 patients completed the study; mostly Fitzpatrick Type II-III skin; photographic assessments utilized.
Per our prospective trial, concurrent treatment of ITN-FRF is superior to delayed FRF treatment 6 months post-ITN cessation.
一直以来的治疗准则是在异维 A 酸(ITN)停药后至少 6 个月再治疗痤疮瘢痕。
评估分射频(FRF)治疗同时接受 ITN 治疗的患者的安全性和疗效。
我们进行了一项前瞻性随机对照 3 臂比较试验,以评估痤疮瘢痕的治疗效果。患者接受了以下三种治疗方案之一:(A)ITN 和 FRF 联合治疗;(B)ITN 单药治疗;(C)ITN 停药 6 个月后行 FRF 治疗。FRF 组的患者每月接受 3 次治疗。患者接受 FRF 治疗后 6-9 个月随访不良反应。最终美容效果由 3 位独立皮肤科医生使用两种评分标准进行评分:痤疮瘢痕临床评估量表(ECCA)和内部 5 分研究者评分,分别表示改善的百分比。还对患者进行了主观分析。
客观和主观分析显示,ITN-FRF 组有改善,优于延迟 FRF 组和 ITN 单药治疗组。具体来说,同期治疗组(ITN-FRF)的痤疮瘢痕体积从基线平均值(151.1±44.7 至 97.0±31.2,p<0.005)显著减少,优于延迟 FRF 和 ITN 单药治疗组(155.4±37.8 至 122.0±46.2,144.6±82.8 至 132.4±62.7)。此外,同期治疗组的 ECCA 评分(36.8±15.5)改善明显,优于 ITN 单药治疗组(101.5±20.1,p<0.01)。
患者样本量有限:38 例患者完成了研究;皮肤类型主要为 Fitzpatrick Ⅱ-Ⅲ型;采用了照片评估。
根据我们的前瞻性试验,ITN-FRF 同期治疗优于 ITN 停药后 6 个月行 FRF 治疗。