Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
J Dermatolog Treat. 2009;20(6):359-64. doi: 10.3109/09546630903085278.
Striae distensae are a frequent skin condition for which treatment remains a challenge.
To determine the efficacy and safety of a TriPollar radiofrequency (RF) device for the treatment of striae in skin phototypes IV-V.
Seventeen females with striae received six weekly treatments with a TriPollar RF device. The participants were evaluated using standardized photographs and a UVA-light video camera at baseline, and at 1 and 6 weeks after the final treatment. Side effects of treatment were recorded at every session.
At 1 week after the final treatment, 38.2% and 11.8% of the subjects were assessed to have 25-50% and 51-75% improvement of their striae, respectively. Compared with the 1-week follow-up, at the 6-week follow-up a higher percentage of the subjects were rated to have improvement of their striae. There were no significant differences in the striae surface smoothness at the 1- (p = 0.907) and 6-week (p = 0.057) follow-ups, compared with that of baseline. Twelve percent (2/17), 23% (4/17), and 65% (11/17) of the study subjects rated their satisfaction of the overall improvement as slightly satisfied, satisfied, and very satisfied, respectively. No adverse effect was reported.
TriPollar RF appears to be a promising alternative for the treatment of striae distensae.
妊娠纹是一种常见的皮肤问题，其治疗仍然具有挑战性。
评估 TriPollar 射频（RF）设备治疗皮肤光型 IV-V 的妊娠纹的疗效和安全性。
17 名女性接受了六次每周一次的 TriPollar RF 设备治疗。在基线、治疗结束后 1 周和 6 周时，使用标准化照片和 UVA 光视频摄像机对参与者进行评估。每次治疗时记录治疗的副作用。
治疗结束后 1 周，38.2%和 11.8%的受试者被评估为其妊娠纹改善了 25%-50%和 51%-75%。与 1 周随访相比，6 周随访时更多的受试者被评估为其妊娠纹得到改善。与基线相比，在 1 周（p=0.907）和 6 周（p=0.057）随访时，妊娠纹表面光滑度无显著差异。12%（2/17）、23%（4/17）和 65%（11/17）的研究对象分别对整体改善的满意度评为轻度满意、满意和非常满意。没有报告不良反应。
TriPollar RF 似乎是治疗妊娠纹的一种很有前途的选择。
