Key result
In a rabbit model, 32P-implanted stents at an activity level of 13 microCi potently inhibited neointima formation compared with conventional stents at 4 and 12 weeks.
Why the study?
Does a beta-particle-emitting stent (32P) inhibit neointima formation in a rabbit model?
Population
Rabbit model (iliac arteries)
Comparison
Beta-particle-emitting radioisotope implanted… vs Conventional Palmaz-Schatz stents
Design
Preclinical
Follow-up
12 weeks
Authors
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Hypothesis-generating for beta-emitting stents in restenosis prevention; human trials needed before any clinical consideration.
Does a beta-particle-emitting stent (32P) inhibit neointima formation in a rabbit model?
Beta-particle-emitting stents (32P) at a sufficient dose (13 microCi) markedly suppress neointima formation in a rabbit model, suggesting a potential approach to prevent in-stent restenosis.
Hehrlein et al. (1996) studied Neointimal hyperplasia. 32P-implanted stents vs. Conventional stents was evaluated on Neointima formation and smooth muscle cell cellularity. In a rabbit model, 32P-implanted stents at an activity level of 13 microCi potently inhibited neointima formation compared with conventional stents at 4 and 12 weeks.
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