Research Article
Comparison of Two Percutaneous Atrial Septal Defect Occluders for Device Healing and Nickel Release in a Chronic Porcine Model
Table 2
Summary of median (range) histopathological scores for ASO and Hyperion devices.
| | | Inflammation | Granulation tissue | Fibrin/thrombus |
| | ASO 1 month (n = 3) | 3 (3-4) | 3 (1–4) | 1 (1-2) | | ASO 3 months (n = 3) | 3 (3-3) | 3 (2-3) | 0 (0-1) | | Hyperion 1 month (n = 3) | 3 (3-4) | 3 (2-3) | 1 (0-1) | | Hyperion 3 months (n = 3) | 4 (3-4) | 3 (3-4) | 1 (0-1) | | ASO vs Hyperion 1 month | | | | | ASO vs Hyperion 3 months | | | |
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