Nelson Andrew A, Beynet David, Lask Gary P
a Department of Dermatology , Tufts University School of Medicine and Private Practice, Nelson Dermatology , Saint Petersburg , Florida , USA.
b Division of Dermatology, David Geffen School of Medicine, University of California at Los Angeles , Los Angeles , California , USA.
J Cosmet Laser Ther. 2015;17(6):307-12. doi: 10.3109/14764172.2015.1039035. Epub 2015 Jul 3.
Loose, lax skin is a common cosmetic complaint. Previous non-invasive skin tightening devices had modest efficacy and were associated with pain or downtime. New technologies may allow for effective skin tightening with a series of radiofrequency (RF) treatments with no downtime.
To evaluate the efficacy and safety of a novel bipolar RF device for skin tightening.
Fifteen consecutive female patients were enrolled in the case series; 14 completed the study and were included in the analysis. The device under investigation is a novel, bipolar RF device allowing for achievement and maintenance of optimal dermal temperatures to stimulate collagen remodeling and skin tightening. Patients underwent a series of 4-6 weekly treatments. Three blinded, experienced cosmetic physicians evaluated paired pre-treatment and post-treatment photographs and determined the associated improvement, if any.
All patients (14/14) were determined to have a clinical improvement, as the pre-treatment and post-treatment photographs were correctly identified by the evaluators. It was observed that 21% (3/14) of patients had significant improvement, 50% (7/14) had moderate improvement, and 29% (4/14) had mild improvement. No pain, side effects, or adverse events were observed.
This novel bipolar RF device represents a safe, effective treatment option for non-invasive skin tightening.
皮肤松弛是常见的美容问题。以往的非侵入性皮肤紧致设备效果一般，且伴有疼痛或需要恢复时间。新技术可能通过一系列射频（RF）治疗实现有效的皮肤紧致，且无需恢复时间。
评估一种新型双极射频设备用于皮肤紧致的疗效和安全性。
15名连续入选的女性患者纳入该病例系列研究；14名完成研究并纳入分析。所研究的设备是一种新型双极射频设备，可实现并维持最佳真皮温度，以刺激胶原蛋白重塑和皮肤紧致。患者接受了一系列每周一次、共4至6次的治疗。三名经验丰富的美容科医生在不知情的情况下评估治疗前和治疗后的配对照片，并确定是否有相关改善。
所有患者（14/14）均有临床改善，评估者能够正确识别治疗前和治疗后的照片。观察到21%（3/14）的患者有显著改善，50%（7/14）有中度改善，29%（4/14）有轻度改善。未观察到疼痛、副作用或不良事件。
这种新型双极射频设备是一种安全、有效的非侵入性皮肤紧致治疗选择。
