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Pulsed dye laser in jellyfish-induced keloids
Astrid Herzum1, Gianmaria Viglizzo1, Lodovica Gariazzo1
1Dermatology Department, IRCCS Istituto Giannina Gaslini, Genova, Italy.
Summary
Pulsed dye laser (PDL) effectively treats pediatric keloids caused by jellyfish stings. This study shows significant improvement in keloid appearance and texture after PDL therapy.
Area of Science:
- Dermatology
- Laser Therapy
- Pediatric Scarring
Background:
- Jellyfish stings can lead to keloid formation.
- Keloids are raised scars that can cause cosmetic and functional concerns.
- Pulsed dye laser (PDL) is a recognized treatment for keloids.
Purpose of the Study:
- To evaluate the efficacy of PDL in treating pediatric keloids resulting from jellyfish stings.
- To assess changes in keloid characteristics post-PDL treatment.
Main Methods:
- Retrospective observational study of pediatric patients treated with 595 nm PDL.
- PDL parameters: 0.45-1.5 msec duration, 7 mm spot-size, 8.5-9.5 J/cm² fluence.
- Mean of 7.4 sessions administered every 1-3 months.
- Keloid assessment using Vancouver Scar Scale (VSS) by two dermatologists pre- and post-treatment.
Main Results:
- 17 pediatric patients (mean age 11 years) included.
- Mean pre-treatment global VSS was 11.0 ± 1.50.
- Mean post-treatment global VSS significantly reduced to 3.88 ± 1.87 (p < .0001).
- Statistically significant improvement in vascularity, pigmentation, height, and pliability observed.
Conclusions:
- PDL therapy is effective for pediatric keloids secondary to jellyfish stings.
- The treatment demonstrated significant improvement in scar appearance and texture.
- Further research with larger cohorts is warranted to confirm findings.
