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Monitoring propranolol treatment in periocular infantile haemangioma
Insights
A new tool, the delta defocus equivalent (DFE-∂), quantifies amblyopic risk from periocular haemangioma. Propranolol treatment significantly reduced this risk in children, aiding treatment decisions.
Area of Science:
- Ophthalmology
- Paediatric Ophthalmology
- Optometry
Background:
- Periocular infantile haemangiomas can induce anisometropia, leading to amblyopic risk.
- Accurate assessment of this risk is crucial for effective management.
- Current methods may not fully capture the dynamic nature of the risk during treatment.
Purpose of the Study:
- To develop a quantitative tool for assessing amblyopic risk.
- To monitor the treatment effect of propranolol on this risk.
- To aid clinical decision-making in managing periocular haemangiomas.
Main Methods:
- A study involving nine children treated with propranolol for periocular haemangioma.
- Development of the delta defocus equivalent (DFE-∂) as a measure of induced anisometropia.
- Retrospective collection of refraction data to track DFE-∂ trends during treatment.
Main Results:
- The average DFE-∂ at the start of propranolol treatment was 1.54 dioptres.
- The average DFE-∂ decreased to 0.39 dioptres by the end of treatment.
- A significant reduction in amblyogenic risk was observed.
Conclusions:
- The DFE-∂ serves as a valuable tool for assessing amblyopic risk in infantile haemangioma.
- This quantitative measure can support treatment decisions in paediatric ophthalmology.
- Propranolol treatment effectively mitigates amblyopic risk associated with periocular haemangiomas.
Objective:
To develop a tool for assessing amblyopic risk and monitoring the treatment effect of propranolol in periocular haemangioma management.
Methods:
We present a study of nine children with periocular haemangioma who underwent propranolol treatment at York Hospital between 2009 and 2013.A proposed measure of amblyogenic risk based on the induced anisometropia resulting from a periocular haemangioma was calculated in the form of a single quantitative value, measured in dioptres. This calculation used published work and developed it to produce a new function, termed the delta defocus equivalent (DFE-∂).Refraction measurements were retrospectively collected from patients' notes in order to measure the trend of DFE-∂ over the treatment period with propranolol.
Results:
The average DFE-∂ at commencement of propranolol was 1.54 (±0.62) D. The average at the end of treatment was 0.39 (±0.38) D.
Conclusion:
This work presents a possible tool for assessing amblyopic risk in cases of periocular infantile haemangioma. The DFE-∂ gives a measure in dioptres, which may represent the true amblyopic risk, and so be useful in supporting treatment decisions in paediatric ophthalmology.
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