Retrospective study of the effects of pulsed dye laser on hair growth in infantile scalp hemangioma
Objective To investigate the risk factors associated with hair growth in the treatment of infantile scalp hemangioma using pulsed dye laser(PDL).Methods The study retrospectively examined 38 cases with superficial infantile scalp hemangioma who were treated with PDL and achieved recovery.The follow-up of hair growth was conducted for a minimum duration of 2 years post-treatment.Results Among the 38 cases,nearly normal hair growth was observed in 29 cases,while minimal hair growth was reported in 6 cases and complete hair loss occurred in 3 cases.The main risk factors influencing hair growth include tumor area ≥ 1 cm2,treatment times of PDL＞7,and average treatment energy ≥ 10 J/cm2(P＜0.05).Conclusions For pediatric cases with superficial scalp hemangioma,it is recommended to use PDL in combination with other methods when the tumor area equals or exceeds 1 cm2 and the thickness of the tumor increases,thereby reducing the frequency and energy in laser therapy,thus minimizing the risk of laser-induced hair loss.
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