Abstract
Aim To report our experience with 106ruthenium-brachytherapy of peripheral capillary haemangioblastomas in patients with
von Hippel-Lindau disease.
Design Retrospective case series.
Methods A total of 53 haemangioblastomas, treated with 106ruthenium-brachytherapy, were included in our study. The applied radiation dose, visual
outcome, angioma activity, need for vitreoretinal surgery and incidence of secondary
complications such as macular oedema, secondary glaucoma, vitreous haemorrhage, and
epiretinal gliosis were assessed.
Results All treated eyes could be preserved. In 11 patients (20.8%), single brachytherapy
did not achieve complete inactivation of the tumour. 31% developed macular oedema
postoperatively. Tractional retinal detachment developed in 23.8%, and epiretinal
gliosis was observed in 2.4% of patients. Vitreoretinal surgery was necessary in 50%
of all treated eyes. At the end of the follow-up, 40.5% of all treated eyes achieved
visual acuity (VA) of 0.6 or better, and one third reached a VA of less than 0.1.
Mean irradiation dose to the tumour apex was 144 Gy. Higher apex doses correlated
with better tumour control of irradiated haemanigoblastomas and lower complication
rates.
Conclusions Brachytherapy of peripheral retinal capillary haemangioblastomas is an effective
treatment modality. Higher irradiation doses seem to lead to more successful treatment.
Key words
von Hippel-Lindau - VHL - retinal capillary hemangioblastoma - brachytherapy - ruthenium