Early Intervention Effects and Risk Factors for Residual Skin Changes in Infantile Hemangiomas

Area of Science:

• Dermatology
• Pediatric Medicine
• Laser Therapy

Background:

• Infantile hemangioma (IH) typically involutes spontaneously but can cause complications like functional impairment or disfigurement.
• Traditional management involved a 'wait-and-see' approach, but early intervention is now preferred in Japan using pulsed dye laser (PDL).

Purpose of the Study:

• To analyze the impact of early PDL therapy on IH progression and residual skin changes.
• To identify risk factors for severe residual skin changes following PDL treatment.

Main Methods:

• Retrospective analysis of 92 patients (107 IH lesions) treated with PDL between January 2014 and December 2022.
• Statistical analysis including correlation, Fisher's exact test, and multivariate logistic regression to assess treatment timing, lesion characteristics, and outcomes.

Main Results:

• Earlier PDL initiation was significantly associated with an earlier peak lesion size (r=0.80, p<0.0001).
• Nodular IH type and a peak size ≥3 cm² were significant predictors of severe residual skin changes (p<0.0001 and OR=21.6, respectively).
• Low birth weight and prematurity did not increase the risk of severe residual changes with early laser treatment.

Conclusions:

• Early PDL initiation for infantile hemangioma is linked to an earlier peak lesion size.
• Nodular IH and lesions reaching ≥3 cm² are risk factors for significant long-term residual skin changes.
• Early risk stratification and timely systemic therapy consideration are crucial for high-risk IH cases.