Invasive Pulsed-Type, Bipolar, Alternating Current Radiofrequency Treatment Using Microneedle Electrodes for Nasal Rosacea

Abstract

Radiofrequency (RF) devices deliver high frequency energy to the biological tissues thath as been either cut or coagulated. A pulsed-type RF irradiation elicits thermal and/or non-thermal effects by delivering a particular rate of gated RF oscillations. In the present study, we describe two patients with nasal rosacea, who were effectively treated with invasive pulsed-type, bipolar alternating current (AC) RF treatment using microneedle electrodes. The RF treatment was delivered to these two patients with a power level of 3, a microneedle penetration depth of 1.5 mm, and 2-3 passes over six (patient 1) and 12 (patient 2) sessions, at two-week intervals. The first patient presented marked clinical improvement with respect to both the overall redness and papulopustular lesions; the second patient exhibited noticeable improvement in both the texture and telangiectatic lesions on the nose. Both patients were satisfied with the clinical outcomes without remarkable side effects. Key words

Treatment of Refractory Rosacea with a Dual Wavelength Long-Pulsed 755-nm Alexandrite and 1,064-nm Nd:YAG Laser

“…5 However, there are quite a few cases which are refractory to PDL treatment, and various laser devices are being attempted in treating rosacea including the microsecond Nd:YAG laser, dual-frequency ultrasound, radiofrequency devices, and dual wavelength long-pulsed 755-nm alexandrite/ microsecond 1,064-nm Nd:YAG laser. 5,[7][8][9] The microsecond Nd:YAG laser is less painful and is less risky than the traditional millisecond LPND with a similar safety profile to that of PDL, and since alexandrite laser has a deeper penetration depth compared to PDL, it can also be effective in treating vascular lesions refractory to PDL. 7,10 Therefore, the dual wavelength long-pulsed 755-nm alexandrite/microsecond 1,064-nm Nd:YAG laser can be a good selective option for rosacea treatment.…”