Nichols Christopher, Albershardt Daniel
Aesthet Surg J Open Forum. 2024 Nov 14;6:ojae104. doi: 10.1093/asjof/ojae104. eCollection 2024.
Application of helium-based plasma radiofrequency (RF; Renuvion, Apyx Medical, Clearwater, FL) in the subcutaneous plane results in tissue coagulation and contraction. Although, traditionally, the impact of thermal devices on skin laxity is assessed by measuring changes in skin surface area, this indirect measure does not permit intraoperative assessment or differentiation of effects from various treatments.
To determine the amount of soft tissue contraction achieved by multiple passes of helium plasma RF energy to the subcutaneous connective tissues following power-assisted liposuction (PAL).
In this single-center study, 4 patients were assessed using real-time ultrasound measurements at baseline and following both PAL and each pass with helium plasma RF.
Based on changes in the distance from the skin (dermal basement membrane) to Scarpa's fascia, PAL produced an average reduction of 36.7% (standard deviation [SD] 14.6; range, 24.7%-58.6%) because of the fat removal. Contraction observed with helium plasma RF was greatest for the first pass, with a mean decrease of 27.0% (SD 19.6; range, 4.5%-52.1%) in distance relative to distance measured following liposuction. Subsequent passes resulted in additional incremental contraction relative to previous treatment pass: 17.0% (5.1) for Pass 2, 7.7% (17.5) for Pass 3, and 7.1% (5.5) for Pass 4. Overall, helium plasma RF resulted in an average contraction of 44.0% (SD 17.2; range, 27.1%-59.4%) in the skin-to-Scarpa-fascia measurement.
Helium plasma RF improved tissue contraction following PAL by an average of 44%, and data suggest that the greatest increase in tissue contraction is obtained by the first treatment pass.
基于氦气的等离子体射频（RF；Renuvion，Apyx Medical，克利尔沃特，佛罗里达州）应用于皮下平面会导致组织凝固和收缩。传统上，热设备对皮肤松弛的影响是通过测量皮肤表面积的变化来评估的，但这种间接测量方法无法在术中进行评估，也无法区分各种治疗的效果。
确定在动力辅助吸脂术（PAL）后，多次将氦等离子体射频能量传递至皮下结缔组织所实现的软组织收缩量。
在这项单中心研究中，对4例患者在基线时以及在PAL后和每次氦等离子体射频治疗后使用实时超声测量进行评估。
基于从皮肤（真皮基底膜）到斯卡帕筋膜的距离变化，由于脂肪去除，PAL导致平均减少36.7%（标准差[SD]14.6；范围，24.7%-58.6%）。氦等离子体射频观察到的收缩在第一次治疗时最大，相对于吸脂后测量的距离，平均减少27.0%（SD 19.6；范围，4.5%-52.1%）。相对于前一次治疗，后续治疗导致额外的渐进性收缩：第2次治疗为17.0%（5.1），第3次治疗为7.7%（17.5），第4次治疗为7.1%（5.5）。总体而言，在皮肤到斯卡帕筋膜的测量中，氦等离子体射频导致平均收缩44.0%（SD 17.2；范围，27.1%-59.4%）。
氦等离子体射频使PAL后的组织收缩平均提高了44%，数据表明组织收缩的最大增加是通过第一次治疗获得的。
