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KMID : 1037020170060010017
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Medical Lasers; Engineering, Basic Research, and Clinical Application
2017 Volume.6 No. 1 p.17 ~ p.23
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Therapeutic Efficacy and Safety of Invasive Pulsed-Type Bipolar Alternating Current Radiofrequency on Melasma and Rebound Hyperpigmentation
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Kim Hyoung-Moon
Lee Min-Ji
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Abstract
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Background and Objectives: Laser treatment for melasma is typically associated with various complications, especially rebound hyperpigmentation (RH) and mottled hypopigmentation. The purpose of this case review was to analyze the clinical efficacy and safety of using an uinvasive pulsed-type bipolar alternating current radiofrequency (IBPRF) for treating melasma with or without RH.
Materials and Methods: Clinical improvement in the appearances of melasma and RH was analyzed in 142 Korean patients (4 men and 138 women, with a mean age of 37.3 ± 11 years), who had undergone IBPRF treatment for melasma. IBPRF was delivered at a frequency of 2 MHz and with non-insulated, penetrating microneedles over five to 10 treatment sessions at 2- to 3-week intervals.
Results: In total, 124 patients had melasma, and among them,18 patients had melasma with RH. To treat melasma, IBPRF alone was administered to 112 subjects, IBPRF plus a Q-switched Q-switched neodymium-yttrium-aluminum-garnet (Nd:YAG) laser in 22 patients, IBPRF plus intralesional tranexamic acid injection in five patients, and IBPRF plus bleaching cream in three patients. Patients reported subjective satisfaction with the appearance of their melasma lesions after seven to eight treatment sessions, regardless of whether they underwent treatment with pulsed RF alone or combination treatment. After treatment, no significant complications, particularly RH or mottled hypopigmentation, were recorded.
Conclusion: No severe complications related to IBPRF treatment were recorded, and patients reported satisfaction in the appearance of their lesions after seven to eight treatment sessions. This suggests that IBPRF may be effective and safe for treating melasma and RH.
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KEYWORD
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Invasive pulsed-type bipolar radiofrequency, Melasma, Postinflammatory hyperpigmentation, Rebound hyperpigmentation
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