Propranolol as first-line treatment in orbital infantile haemangiomas: a case series

M Levitt1, A D Coumou, L Groeneveld

  • 1Department of Ophthalmology .

Insights

Propranolol effectively treats orbital infantile hemangiomas (IHs), showing rapid tumor reduction and lesion regression. Magnetic Resonance Imaging (MRI) aids in diagnosis and monitoring treatment efficacy for these vascular tumors.

Area of Science:

  • Ophthalmology
  • Pediatric Oncology
  • Radiology

Background:

  • Orbital infantile hemangiomas (IHs) are benign vascular tumors that can cause vision-threatening complications.
  • Early diagnosis and treatment are crucial to prevent amblyopia and other ocular morbidities.

Observation:

  • A retrospective case series of 5 infants with orbital IH presenting with proptosis and risk of amblyopia.
  • Magnetic Resonance Imaging (MRI) revealed characteristic IH lesion features including flow voids and contrast enhancement.
  • Patients received propranolol, starting at 0.6 mg/kg/day and escalating to 2.7 mg/kg/day.

Findings:

  • MRI demonstrated typical IH characteristics: flow voids, high contrast enhancement, specific T1W/T2W signals, and lobulated appearance.
  • All 5 patients exhibited a rapid clinical response to propranolol, with significant tumor size reduction within 1-3 weeks.
  • Complete lesion regression was observed by the end of the treatment course.

Implications:

  • Propranolol is an effective and safe treatment for orbital IHs under controlled conditions.
  • MRI is a valuable diagnostic tool for orbital IHs, aiding in treatment planning and response assessment.
  • This study supports the dual role of propranolol as both a diagnostic aid and therapeutic agent for orbital IHs.
Abstract

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