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Can long-term alopecia occur after appropriate pulsed-dye laser therapy in hair-bearing sites? Pediatric dermatologists weigh in.

AbstractBACKGROUND:
The risk of long-term alopecia after pulsed-dye laser (PDL) therapy is unknown. To identify how many practitioners treat hair-bearing sites with PDL and how commonly long-term alopecia occurs, the authors queried pediatric dermatologists about their experiences using this modality.
METHODS:
A survey was designed to evaluate the frequency of and factors contributing to long-term alopecia after PDL treatment of port-wine stains (PWS). "Long-term" was defined as no sign of hair regrowth after several years of nontreatment. The survey was administered to attendees at the 2014 Society for Pediatric Dermatology biannual meeting.
RESULTS:
Sixty-four pediatric dermatologists completed the survey, 50 of whom had experience using PDL. Of these physicians, 86% have used PDL to treat PWS of the eyebrow and 80% have treated PWS of the scalp. Over one-quarter of respondents (25.5%) using PDL on hair-bearing areas had at least 1 of their patients develop long-term alopecia after PDL treatment. The incidence of long-term alopecia after PDL treatment in the surveyed population was 1.5% to 2.6%.
CONCLUSION:
The occurrence of long-term alopecia at hair-bearing sites after treatment with PDL may be greater than previously thought. Because the majority of physicians using PDL treat hair-bearing areas, prospective studies are needed to more accurately determine the risk of long-term alopecia and the factors that contribute to it.
AuthorsStephanie Feldstein, Christine R Totri, Sheila F Friedlander
JournalDermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] (Dermatol Surg) Vol. 41 Issue 3 Pg. 348-51 (Mar 2015) ISSN: 1524-4725 [Electronic] United States
PMID25742556 (Publication Type: Journal Article)
Topics
  • Alopecia (epidemiology)
  • Child
  • Dermatology (statistics & numerical data)
  • Eyebrows
  • Health Care Surveys
  • Humans
  • Incidence
  • Lasers, Dye (adverse effects)
  • Low-Level Light Therapy (adverse effects)
  • Port-Wine Stain (therapy)
  • Risk Factors
  • Scalp

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