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Helium ion therapy for choroidal melanoma
Ophthalmology
|October 1, 1983
Summary
Helium ion irradiation effectively treated choroidal melanomas, with most patients showing tumor shrinkage or stability. This method may offer advantages over other treatments for this eye cancer.
Area of Science:
- Ophthalmology
- Radiation Oncology
- Medical Physics
Background:
- Choroidal melanoma is a rare but serious intraocular malignancy.
- Current management options for choroidal melanoma include radioactive plaques and photocoagulation, with varying efficacy and morbidity.
- The optimal treatment strategy for choroidal melanoma remains under investigation.
Purpose of the Study:
- To evaluate the efficacy and safety of helium ion charged particle irradiation for treating choroidal melanomas.
- To compare helium ion irradiation with existing treatment modalities for choroidal melanoma.
Main Methods:
- Eighty-two patients diagnosed with choroidal melanoma were treated using helium ion charged particle irradiation.
- Tumor response was assessed through imaging and clinical follow-up.
- Long-term outcomes, including tumor regression and mortality, were analyzed.
Main Results:
- Seventy-eight out of 82 patients (95%) exhibited stable disease or tumor shrinkage following treatment.
- Among 46 patients followed for at least one year, 45 (98%) demonstrated tumor regression, with an average shrinkage of 31%.
- No tumor-related mortality was reported in the study cohort.
Conclusions:
- Helium ion charged particle irradiation is a highly effective treatment for choroidal melanoma, leading to significant tumor regression.
- This modality appears to have a favorable safety profile with no observed tumor-related deaths.
- Charged particle irradiation may represent a more applicable and less morbid alternative to radioactive plaques and photocoagulation for choroidal melanoma management.