Key result
Repeated balloon injury in pigs significantly increased neutrophil adhesion compared to single injury (mild: 1289.1 vs 226.6; deep: 2411.8 vs 512.5 x10^3/cm2; p<0.05), suggesting a role in restenosis.
Why the study?
Does repeated arterial wall injury increase platelet and neutrophil adhesion compared to single injury in a pig model of angioplasty?
Population
27 pigs (8 in acute single-injury model, 19 in chronic model) subjected to bilateral carotid angioplasty
Comparison
Repeated arterial wall injury via redilation at… vs Single arterial wall injury
Design
Preclinical
Follow-up
1 hour (acute model) and 4 weeks (chronic model)
Authors
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May implicate repeated injury in enhanced post-angioplasty inflammation; leaves open whether neutrophil adhesion drives human restenosis.
Does repeated arterial wall injury increase platelet and neutrophil adhesion compared to single injury in a pig model of angioplasty?
p-value: p=< 0.05
Repeated arterial injury in a porcine model significantly increases neutrophil adhesion, suggesting ongoing proinflammatory processes that may contribute to restenosis progression.
Bienvenu et al. (2001) studied Arterial wall injury and restenosis (n=27). Repeated balloon injury (double injury) vs. Single balloon injury was evaluated on Neutrophil adhesion (p=< 0.05). Repeated balloon injury in pigs significantly increased neutrophil adhesion compared to single injury (mild: 1289.1 vs 226.6; deep: 2411.8 vs 512.5 x10^3/cm2; p<0.05), suggesting a role in restenosis.
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