Management of Infantile Hemangiomas

Introduction to Infantile Hemangiomas

Infantile hemangiomas follow a predictable life cycle, with most appearing by 4 weeks of age, rapid growth between 5-7 weeks, and 80% of growth completed by 3 months, as noted by the American Academy of Family Physicians and the American Academy of Pediatrics 1, 2
Approximately 50-70% of infantile hemangiomas leave behind residual skin changes, including telangiectasias, fibrofatty tissue, redundant skin, atrophy, dyspigmentation, or scarring, according to the American Academy of Pediatrics 1, 2, 3

Infantile hemangiomas typically stop growing by 5-12 months of age and involution begins between 6-12 months, with 90% of involution complete by 4 years of age, as stated by the American Academy of Pediatrics 1
The involution process is characterized by a color change from red to milky-white/gray, and lesions flatten and shrink from the center outward 1, 3
Involution proceeds more slowly than growth, with first signs including central clearing or graying of the surface 1, 3

Location, size, and depth of the hemangioma, as well as type and segmental pattern, can influence involution patterns and residual changes, with larger and deeper hemangiomas taking longer to involute, and segmental hemangiomas having a higher risk of incomplete involution 1, 3
Facial hemangiomas may have different involution patterns than those on the trunk or extremities, and superficial hemangiomas typically involute faster than deep or mixed types 1, 3

Pulsed dye laser is highly effective for residual telangiectasias and flat areas, but potential complications include atrophic scarring and hypopigmentation, particularly in darker skin types, as noted by the American Academy of Pediatrics 3
Surgical correction is indicated for significant fibrofatty residuum or redundant skin, with optimal timing typically around 3-4 years of age, before the child develops significant self-awareness but after maximum involution has occurred, according to the American Academy of Pediatrics 3
Observation is appropriate for minor residual changes that don't cause functional or significant cosmetic concerns, and for most uncomplicated strawberry hemangiomas, as they will involute naturally 3, 4

Assessment at age 4 years is recommended, when 90% of involution is complete, to evaluate residual changes and consider impact on quality of life, including functional impairment, psychological impact, and location visibility, as suggested by the American Academy of Pediatrics 1
Evaluation of residual changes should include consideration of minimal changes, telangiectasias, significant fibrofatty tissue, or redundant skin, to determine the best course of treatment, including observation, pulsed dye laser, or surgical correction 1

Early intervention during the proliferative phase with propranolol or other treatments may reduce the likelihood of significant residual changes, according to the American Academy of Pediatrics 1
The American Academy of Pediatrics recommends considering the potential benefits of early intervention to reduce the risk of residual changes, and high-risk hemangiomas should be referred to a specialist early, ideally between 5-7 weeks of age when rapid growth typically begins 1, 4