Key result
Stent placement in small vessels (<2.8 mm) was associated with lower 1-year event-free survival (69.5% vs 81%) and higher angiographic restenosis (38.6% vs 20.4%) compared to larger vessels.
Why the study?
Does vessel size influence long-term clinical and angiographic outcomes after coronary stent placement in patients with symptomatic coronary artery disease?
Cohort (n=2,602)
Does vessel size influence long-term clinical and angiographic outcomes after coronary stent placement in patients with symptomatic coronary artery disease?
Absolute Event Rate: 69.5% vs 81%
p-value: p=<0.001
Patients with small coronary vessels (<2.8 mm) have a higher risk of restenosis and adverse outcomes after stenting, particularly if they have concomitant risk factors such as diabetes or complex lesions.
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Small-vessel stenting may increase adverse events; leaves open whether dedicated devices or strategies improve outcomes.
Elezi et al. (1998) conducted a cohort in symptomatic coronary artery disease (n=2,602). Coronary stent placement in small vessels (<2.8 mm) vs. Coronary stent placement in larger vessels (>3.2 mm) was evaluated on Event-free survival at 1 year (p=<0.001). Stent placement in small vessels (<2.8 mm) was associated with lower 1-year event-free survival (69.5% vs 81%) and higher angiographic restenosis (38.6% vs 20.4%) compared to larger vessels.
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