Clinical and quantitative coronary angiographic predictors of coronary restenosis
Key result
Angioplasty with additional stenting is linked to ~46% lower restenosis risk versus PTCA alone.
- n=8,156
Why the study?
A systematic analysis evaluating whether coronary stents have modified demographic, clinical, and quantitative coronary angiographic predictors of restenosis in a large cohort had never been performed.
Population
8,156 patients with 9,120 treated lesions across nine randomized trials and 10 registries
Comparison
PTCA vs angioplasty with additional stenting
Design
Pooled analysis of nine randomized trials and 10 registries
Follow-up
Six-month
Authors
Discussion
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Implication
Randomized trial assesses coronary restenosis predictors in stent and PTCA populations, suggesting key clinical insights.
Key Points
- This study aims to evaluate the impact of coronary stents on predictors of coronary restenosis compared to PTCA.
- Analyzed 9,120 lesions in 8,156 patients from nine randomized trials and 10 registries.
- Performed baseline, post-procedural, and six-month follow-up quantitative coronary angiography analyses.
- Utilized univariate and multivariate logistic regression to identify predictors of restenosis.
- Restenosis rate was 35% after PTCA and 19% after stenting.
- Key favorable predictors included stent use, large post-procedural minimal lumen diameter, and previous CABG; unfavorable predictors included lesion length and diabetes mellitus.
- A larger pre-procedural reference diameter became a favorable predictor in the stent population.
Study Design
Type
Cohort (n=8,156)
Multicenter
Yes
PICO
P
Population
8,156 patients with 9,120 treated lesions from nine randomized trials and 10 registries, with baseline, post-procedural, and six-month follow-up quantitative coronary angiographic analyses.
E
Exposure / Comparator
Angioplasty with additional stenting vs PTCA
O
Primary Outcome
Coronary restenosis
Main Result
Absolute Event Rate: 19% vs 35%
Cite This Study
Mercado et al. (2001) conducted a cohort in Coronary restenosis (n=8,156). Angioplasty with additional stenting vs. PTCA was evaluated on Coronary restenosis. Angioplasty with additional stenting had a 19% restenosis rate versus 35% for PTCA alone, with stent use and large post-procedural minimal lumen diameter as favorable predictors.