1. Management of choroidal melanomas less than 10 mm in largest basal diameter with a 10-mm ruthenium plaque.
- Author
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Salkola S, Heikkonen J, Eskelin S, and Kivelä T
- Subjects
- Adult, Aged, Aged, 80 and over, Choroid Neoplasms mortality, Choroid Neoplasms pathology, Cohort Studies, Female, Humans, Male, Melanoma mortality, Melanoma pathology, Middle Aged, Radiotherapy Dosage, Retrospective Studies, Survival Rate, Visual Acuity physiology, Brachytherapy, Choroid Neoplasms radiotherapy, Melanoma radiotherapy, Ruthenium Radioisotopes therapeutic use
- Abstract
Purpose: To assess tumor control, complications, and vision after brachytherapy for posterior choroidal melanoma <10 mm in largest basal diameter with the 10-mm ruthenium plaque., Methods: This was a retrospective cohort study of consecutive choroidal melanomas <10 mm by largest basal diameter in a national ocular oncology service in 1998 to 2010. The median dose was 116 Gy (range, 80-194 Gy) to the apex and 327 Gy (range, 201-824 Gy) to the sclera. The median tumor height and largest basal diameter were 1.9 mm (range, 0.4-5.2 mm) and 7.0 mm (range, 3.3-9.6 mm), respectively. The median distance to disk and foveola was 3.0 mm (range, 0-7.5 mm) and 2.0 mm (range, 0-8.5 mm), respectively., Results: Four recurrences occurred at a median of 1.4 years (range, 0.6-3.1 years) after irradiation. Five-year cumulative incidence of local recurrence was 9% (95% confidence interval [CI], 3-20). Six patients died at a median of 4.2 years (range, 0.28-8.6 years) after treatment, one with evidence of metastases. At 5 years, 57% (95% CI, 31-79), 72% (95% CI, 58-85), and 97% (95% CI, 88-100) of eyes were free of any maculopathy, radiation maculopathy, and optic neuropathy, respectively. Cumulative incidence of developing low vision and blindness were 17% (95% CI, 7-31) and 3% (95% CI, 2-12) at 5 years, respectively. Thickness >3.0 mm, largest basal diameter >7.0 mm, and location ≤ 1.5 mm of foveola were associated with visual loss., Conclusion: Local tumor control and vision outcomes support the use of 10-mm ruthenium plaques in managing smallest choroidal melanomas.
- Published
- 2014
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