Journal of cosmetic dermatology · 2023
Exploring the potential of intradermal platelet-rich plasma in treating acquired bilateral nevus of Ota-like macule (Hori's nevus): A pilot study.
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Deeudomwongsa Pasinee, Chumsaengsri Chumsaeng, Aristizabal Miguel, Kiatsurayanon Chanisa
Аннотация
BACKGROUND: Hori's nevus is a common and challenging dermatological condition, often complicated by post-inflammatory hyperpigmentation following treatment. Platelet-rich plasma (PRP) has demonstrated efficacy in the treatment of hyperpigmentation disorders such as melasma and periorbital darkening. Given the benefits and minimally invasive nature of PRP treatments, exploring its application in managing Hori's nevus through further investigation is worthwhile.
AIMS: To evaluate the safety and effectiveness of intradermal PRP therapy for the treatment of Hori's nevus.
METHODS: Ten female patients received bilateral intradermal PRP injections every 2 weeks for a total of four treatments. The modified dermal pigmentation and severity index (mDPASI), mean melanin index (MI), brightening score, patient self-assessment, and clinical photographs were evaluated at 2, 4, 8, and 12 weeks post-treatment. Adverse events were also recorded to determine treatment safety.
RESULTS: At 12 weeks post-treatment, mDPASI decreased 38.86%, from 0.929 ± 0.617 to 0.568 ± 0.415 (p < 0.05). The mean melanin index decreased 12.75%, from 208.650 ± 26.319 to 182.052 ± 17.028 (p < 0.05). In addition, the mean brightness score evaluated by two experts was 1.4, indicating 25-50% improvement. At the end of the study, 50% of the patients reported 50-75% improvement. Side effects included pain, mild edema, and bruising, which resolved spontaneously within 3 days. No serious side effects were found.
CONCLUSION: Our results suggest that intradermal PRP therapy may be a safe and effective alternative for the treatment of Hori's nevus and can complement conventional interventions. However, further research with a larger sample size, control groups, and longer follow-up is needed to confirm these findings.
AIMS: To evaluate the safety and effectiveness of intradermal PRP therapy for the treatment of Hori's nevus.
METHODS: Ten female patients received bilateral intradermal PRP injections every 2 weeks for a total of four treatments. The modified dermal pigmentation and severity index (mDPASI), mean melanin index (MI), brightening score, patient self-assessment, and clinical photographs were evaluated at 2, 4, 8, and 12 weeks post-treatment. Adverse events were also recorded to determine treatment safety.
RESULTS: At 12 weeks post-treatment, mDPASI decreased 38.86%, from 0.929 ± 0.617 to 0.568 ± 0.415 (p < 0.05). The mean melanin index decreased 12.75%, from 208.650 ± 26.319 to 182.052 ± 17.028 (p < 0.05). In addition, the mean brightness score evaluated by two experts was 1.4, indicating 25-50% improvement. At the end of the study, 50% of the patients reported 50-75% improvement. Side effects included pain, mild edema, and bruising, which resolved spontaneously within 3 days. No serious side effects were found.
CONCLUSION: Our results suggest that intradermal PRP therapy may be a safe and effective alternative for the treatment of Hori's nevus and can complement conventional interventions. However, further research with a larger sample size, control groups, and longer follow-up is needed to confirm these findings.