Journal
DERMATOLOGIC SURGERY
Volume 42, Issue 4, Pages 500-506Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/DSS.0000000000000649
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BACKGROUNDEffective treatment options for alopecia areata (AA) are missing. Whether lasers might be effective is a topic of debate.OBJECTIVEWe aimed to evaluate whether neodymium: yttrium aluminum garnet (Nd:YAG) or fractional carbon dioxide lasers might stimulate the development of new hair.MATERIALS AND METHODSThirty-two patients who had long-standing and treatment refractory diseases were recruited for the study. Three different patches on the scalp were selected, 1 of which served as control. The mean outcome measure was the hair count, which was calculated with the digital phototrichogram. Response was defined as at least 25% increase in the mean hair count at the treated patch compared with the control patch.RESULTSAt the end of the study, there was no statistically significant difference in the mean hair count for the 3 patches. In 7 of 32 patients (22%), an increase in the mean hair count was observed on the whole scalp including the control patch, which resulted in an improved Severity of Alopecia Tool (SALT) score.CONCLUSIONWe have observed that Nd:YAG or fractional carbon dioxide lasers did not increase the mean hair count on the treated AA patches when compared with the control patch. However, an SALT score improvement in 22% of the patients suggested spontaneous remission.
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