alexa Salvage adjuvant brachytherapy after ophthalmic artery chemosurgery for intraocular retinoblastoma.
Oncology

Oncology

Journal of Nuclear Medicine & Radiation Therapy

Author(s): Francis JH, Barker CA, Wolden SL, McCormick B, Segal K,

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Abstract PURPOSE: To evaluate the efficacy and toxicity of brachytherapy after ophthalmic artery chemosurgery (OAC) for retinoblastoma. METHODS AND MATERIALS: This was a single-arm, retrospective study of 15 eyes in 15 patients treated with OAC followed by brachytherapy at (blinded institution) between May 1, 2006, and December 31, 2012, with a median 19 months' follow-up from plaque insertion. Outcome measurements included patient and ocular survival, visual function, and retinal toxicity measured by electroretinogram (ERG). RESULTS: Brachytherapy was used as adjuvant treatment in 2 eyes and as salvage therapy in 13 eyes of which 12 had localized vitreous seeding. No patients developed metastasis or died of retinoblastoma. The Kaplan-Meier estimate of ocular survival was 79.4\% (95\% confidence interval 48.7\%-92.8\%) at 18 months. Three eyes were enucleated, and an additional 6 eyes developed out-of-target volume recurrences, which were controlled with additional treatments. Patients with an ocular complication had a mean interval between last OAC and plaque of 2.5 months (SD 2.3 months), which was statistically less (P=.045) than patients without ocular complication who had a mean interval between last OAC and plaque of 6.5 months (SD 4.4 months). ERG responses from pre- versus postplaque were unchanged or improved in more than half the eyes. CONCLUSIONS: Brachytherapy following OAC is effective, even in the presence of vitreous seeding; the majority of eyes maintained stable or improved retinal function following treatment, as assessed by ERG. Copyright © 2013 Elsevier Inc. All rights reserved.
This article was published in Int J Radiat Oncol Biol Phys and referenced in Journal of Nuclear Medicine & Radiation Therapy

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