Abstract
Percutaneous induction of collagen with needles (IPCA®) associated with Pulsed radiofrequency with multineedles (RFPM®) in the management of depressed acne scars: treatment protocol
Highlights
Depressed acne scars always arise as a therapeutic challenge
Percutaneous collagen induction (PCI) with needles proposes the substitution of the cicatricial collagen for a new collagen at the same time that it preserves the epidermis of the area treated.The scars are broken down by a roller with 192 microneedles on average that, after many passes on the area of interest, results in the formation of micro channels, bleeding and an inflammatory cascade that induces the remodeling of the scar tissue.[2,3,4]
Based on the findings from treatment of eyelid laxity and in old stretch marks, the author initiated an investigation looking for the applicability of fractional radiofrequency micro-needling (FRM) in depressed acne scars.[5,6]
Summary
Depressed acne scars always arise as a therapeutic challenge. Fractional lasers, surgical approaches and chemical peels have attempted to offer acceptable aesthetic results, it is still difficult to determine the ideal treatment. This study is the result of the observation of the association of PCI and FRM It is proposed an innovative approach for the treatment of depressed acne scars, based on the sub-ablative energy, with electrodes with multiple needles connected to a radioelectrosurgery device. This technique, performed accurately and isolated, does not compromise the tissue surrounding the vaporized micropoints and causes a significant impact on the tissue, enabling the stimulus for a new collagen (Figure 1). Electrodes known as Lima 2, Lima 4 e Lima 8 are needed for the execution of FRM, named after the author, made up of two, four or eight tungsten needles, respectively, with a diameter of 100 thousandth of millimeters, identical weight and length and oriented in a parallel fashion, with the objective of reaching the same depth.With a length of 2.5mm, these needles pass through the epidermis and act in the dermis, stimulating the contraction and the renovation of the collagen
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