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Scientific article
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Prospective Study of Exclusive Strontium-/Yttrium-90 β-Irradiation of Primary and Recurrent Pterygia with No Prior Surgical Excision

Published inStrahlentherapie und Onkologie, vol. 185, no. 12, p. 808-814
Publication date2009-12-15
First online date2009-12-15
Abstract

Purpose: To evaluate the consecutive treatment results regarding pterygium recurrence and the efficacy of exclusive strontium-/yttrium-90 beta-irradiation for primary and recurrent pterygia and to analyze the functional outcome.

Patients and methods: Between October 1974 and December 2005, 58 primary and 21 recurrent pterygia were exclusively treated with strontium-/yttrium-90 beta-irradiation with doses ranging from 3,600 to 5,500 cGy. The follow-up time was 46.6 +/- 26.7 months, with a median of 46.5 months.

Results: The treatment led to a size reduction in all pterygia (p < 0.0001). Neither recurrences nor side effects were observed during therapy and follow-up in this study. Best-corrected visual acuity increased (p = 0.0064). Corneal astigmatism was reduced in recurrent pterygia (p = 0.009).

Conclusion: Exclusive strontium-/yttrium-90 beta-irradiation of pterygia is a very efficient and well-tolerated treatment, with remarkable aesthetic and rehabilitative results in comparison to conventional treatments, especially for recurrent lesions which have undergone prior surgical excision.

eng
Keywords
  • Pterygium
  • Astigmatism
  • Strontium-/yttrium-90 β-irradiation
Affiliation Not a UNIGE publication
Citation (ISO format)
VASTARDIS, Iraklis et al. Prospective Study of Exclusive Strontium-/Yttrium-90 β-Irradiation of Primary and Recurrent Pterygia with No Prior Surgical Excision. In: Strahlentherapie und Onkologie, 2009, vol. 185, n° 12, p. 808–814. doi: 10.1007/s00066-009-2000-1
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ISSN of the journal0179-7158
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