Key result
Atrial lesions created by β-radiation achieved transmurality in 50% of cases with no dose-response effect across 25-100 Gy (P=0.976), evolving from early inflammation to replacement fibrosis.
Why the study?
What are the histopathological effects and dose-response of transvenous β-radiation for creating atrial lesions in an animal model?
What are the histopathological effects and dose-response of transvenous β-radiation for creating atrial lesions in an animal model?
p-value: p=0.976
Transvenous β-radiation creates atrial lesions characterized by early inflammation and thrombosis followed by replacement fibrosis, with no dose-response effect observed between 25 and 100 Gy.
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Does not support clinical translation of β-radiation ablation; hypothesis-generating in animals and leaves human efficacy open.
Franceschi et al. (2011) studied Atrial lesions (n=10). β-radiation (strontium-yttrium-90) was evaluated on Transmurality of lesions (p=0.976). Atrial lesions created by β-radiation achieved transmurality in 50% of cases with no dose-response effect across 25-100 Gy (P=0.976), evolving from early inflammation to replacement fibrosis.
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