KHOR SHIH CHIEH 許士杰

  • Adjuvant Pulsed dye laser therapy for post-auricular keloid excision

    Background
    Incidence of keloid scars is higher among the Asian and post ear-piercing auricular keloid scars could commonly noticed. Combination therapy was common treatment strategy to auricular keloids. Recurrence rate after treatment to auricular keloid var- ies among different studies. Disadvantages of different treatment strategies was re- ported. Pulsed dye laser played a role in modulation of Transforming growth factor-β (TGF-β), to reduced inflammation and vascularity with minimal pain. Adjuvant Pulsed dye laser therapy should be a reasonable combination therapy after surgical excision.
    Aim and Objectives
    In this study, we reported the case series of adjuvant Pulsed dye laser therapy for post-auricular keloid excision.
    Materials and Methods
    In this retrospective study, case series with auricular keloid between year 2020 and 2022 were analyzed. All patients did not receive other treatment. We performed surgical excision of the auricular keloid following by sequential pulsed dye laser treatment. First pulsed dye therapy will be initiated one month after excision surgery and followed by once a month thereafter. The treatment parameters were fluence of 8.5~9.0 J/cm2, spot size 7mm, and pulse duration of 6ms. No other combination therapy was applied to any of the patients. Outcome was defined as recurrence of auricular keloid and evaluated the lesion site with Vancouver Scar Scale (VSS) score .
    Results
    Ten cases with auricular keloid, aged 22-40 years were analyzed. The treatment result followed ranged from 2 months to 24 months(average 7.2 months, mean 3 months) and with average 4.6 times on number of treatment(mean 3 times). No auricular keloid recurrence noticed among the cases and the mean lesion site VSS score was 1.5.
    Conclusion
    Adjuvant Pulsed dye laser therapy for post-auricular keloid excision was a reasonable treatment strategy with low recurrence and ideal VSS score that comparable to results on other combination treatment strategy. Minimal pain and relative simple procedure may increase the compliance of the patient.

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