Keloid Treatment with High Intensity Focused Radiofrequency: A Case Report
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Keloids and hypertrophic scars are the product of an imbalance in collagenesis and lysis following damage to the skin. A variety of surgical and nonsurgical approaches have been used to treat keloids, but the results have typically been disappointing. High-intensity focused radiofrequency (HiRF) is a novel treatment method for cutaneous conditions, including scar revision; this method involves fractionated radiofrequency (RF) energy being delivered via insulated microneedles at preset depths in the dermis. The present case study assessed treatment of keloids with HiRF. A 27-year-old Caucasian female developed keloids along the jawline following the appearance of pregnancy-related cystic acne. She was treated with two sessions of HiFR at a four-week interval, with three passes at varying depths for each session. Erythema and edema appeared post-treatment but resolved spontaneously. Ten weeks after the final session, significant improvement was noted with high patient satisfaction. While this is only a single case report, the positive result for this difficult-to-treat keloid scar merits further studies with larger populations of keloid sufferers. This unique method of delivery of fractionated RF energy directly into the dermis, under an intact epidermis, using HiFR via insulated microneedles at three decreasing preset depths for each session, may have corrected the imbalance between collagenesis and lysis through induction of the wound healing process. This ‘bottom up’ method of damage delivery and repair might offer better results in keloid scars than the traditional ‘top down’ approach associated with laser treatment.
Abstract
Keloids and hypertrophic scars are the product of an imbalance in collagenesis and lysis following damage to the skin. A variety of surgical and nonsurgical approaches have been used to treat keloids, but the results have typically been disappointing. High-intensity focused radiofrequency (HiRF) is a novel treatment method for cutaneous conditions, including scar revision; this method involves fractionated radiofrequency (RF) energy being delivered via insulated microneedles at preset depths in the dermis. The present case study assessed treatment of keloids with HiRF. A 27-year-old Caucasian female developed keloids along the jawline following the appearance of pregnancy-related cystic acne. She was treated with two sessions of HiFR at a four-week interval, with three passes at varying depths for each session. Erythema and edema appeared post-treatment but resolved spontaneously. Ten weeks after the final session, significant improvement was noted with high patient satisfaction. While this is only a single case report, the positive result for this difficult-to-treat keloid scar merits further studies with larger populations of keloid sufferers. This unique method of delivery of fractionated RF energy directly into the dermis, under an intact epidermis, using HiFR via insulated microneedles at three decreasing preset depths for each session, may have corrected the imbalance between collagenesis and lysis through induction of the wound healing process. This ‘bottom up’ method of damage delivery and repair might offer better results in keloid scars than the traditional ‘top down’ approach associated with laser treatment.
참고문헌 (9)
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