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  • Title: Radiation vascular therapy: a novel approach to preventing restenosis.
    Author: Williams DO.
    Journal: Am J Cardiol; 1998 Apr 09; 81(7A):18E-20E. PubMed ID: 9551590.
    Abstract:
    In animal studies, beta and gamma radiation delivered via catheter-based systems to sites of angioplasty after arterial injury has decreased the neointimal proliferation that is a part of the restenotic process. Extending radiotherapy to the clinical setting, results of the double-blind, placebo-controlled, randomized Scripps Coronary Radiation to Inhibit Proliferation Post Stenting (SCRIPPS) study showed dramatic reductions in the rate of restenosis after coronary stenting when catheter-based gamma radiotherapy (with iridium-192) was used. In the Beta Energy Restenosis Trial (BERT), angiographic, intravascular ultrasound, and clinical outcomes were better than expected with beta brachytherapy. Strontium-90/yttrium-90 seeds were delivered via a unique catheter system in 35 patients who underwent coronary angioplasty. Future trials are being planned to confirm these promising results.
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