PURPOSE: To compare iodine 125 ((125)I) plaque brachytherapy with transscleral tumor resection (TTR) of large uveal melanomas. DESIGN: Retrospective, nonrandomized, comparative, interventional study. PARTICIPANTS: Two hundred thirty-seven patients with large uveal melanomas. INTERVENTION: One hundred fifty-two uveal melanoma patients were treated with (125)I brachytherapy and 85 patients were treated with TTR. Patients were matched according to age, tumor size, and tumor location. Eighteen patients treated with (125)I brachytherapy and 36 patients treated with TTR were eligible for the matched group comparison. The mean patient age was 40.5 years, mean tumor height was 9.4 mm, and mean largest tumor diameter was 14.5 mm. The mean distance of the posterior tumor margin to the optic disc was 9.9 mm and to the fovea was 9.4 mm. The mean follow-up was 27.1 months. MAIN OUTCOME MEASURES: Final visual acuity, incidence of secondary glaucoma, secondary enucleation, and metastatic rates. RESULTS: Visual acuity of 20/200 or better was retained in 61.1% of patients after TTR and 5.6% of patients after (125)I brachytherapy (P < 0.0009). The incidence of secondary glaucoma was higher after (125)I brachytherapy (33.3%) than after TTR (5.6%; P = 0.03). No difference was found with respect to eye retention (P = 0.3) and mortality rates (P = 0.9). CONCLUSIONS: Patients with large melanomas eligible for TTR retain a better visual function and have a lower incidence of secondary glaucoma than those treated by (125)I brachytherapy.
PURPOSE: To compare iodine 125 ((125)I) plaque brachytherapy with transscleral tumor resection (TTR) of large uveal melanomas. DESIGN: Retrospective, nonrandomized, comparative, interventional study. PARTICIPANTS: Two hundred thirty-seven patients with large uveal melanomas. INTERVENTION: One hundred fifty-two uveal melanomapatients were treated with (125)I brachytherapy and 85 patients were treated with TTR. Patients were matched according to age, tumor size, and tumor location. Eighteen patients treated with (125)I brachytherapy and 36 patients treated with TTR were eligible for the matched group comparison. The mean patient age was 40.5 years, mean tumor height was 9.4 mm, and mean largest tumor diameter was 14.5 mm. The mean distance of the posterior tumor margin to the optic disc was 9.9 mm and to the fovea was 9.4 mm. The mean follow-up was 27.1 months. MAIN OUTCOME MEASURES: Final visual acuity, incidence of secondary glaucoma, secondary enucleation, and metastatic rates. RESULTS: Visual acuity of 20/200 or better was retained in 61.1% of patients after TTR and 5.6% of patients after (125)I brachytherapy (P < 0.0009). The incidence of secondary glaucoma was higher after (125)I brachytherapy (33.3%) than after TTR (5.6%; P = 0.03). No difference was found with respect to eye retention (P = 0.3) and mortality rates (P = 0.9). CONCLUSIONS:Patients with large melanomas eligible for TTR retain a better visual function and have a lower incidence of secondary glaucoma than those treated by (125)I brachytherapy.
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