Journal
CIRCULATION-CARDIOVASCULAR INTERVENTIONS
Volume 5, Issue 3, Pages 357-364Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/CIRCINTERVENTIONS.111.967083
Keywords
drug-eluting stent; meta-analysis; stent thrombosis
Categories
Funding
- Cardiovascular Research Foundation, New York, NY
- Abbott
- Abbott Vascular
- Medtronic
- Cordis
- Biotronik Switzerland
- Abbott Vascular Switzerland
- Daiichi Sankyo Switzerland
- Eli Lilly Switzerland
- AstraZeneca Switzerland
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Background-Some but not all studies have reported reduced rates of stent thrombosis (ST) with everolimus-eluting stents (EES) compared with other drug-eluting stents (DES). All of these studies were insufficiently powered to reliably detect differences in ST. We therefore performed a meta-analysis of randomized controlled trials comparing the risk of 2-year definite ST between EES and other DES. Methods and Results-Randomized controlled trials comparing EES versus other DES were searched through MEDLINE, EMBASE, Cochrane databases, and proceedings of international meetings. Information on study design, inclusion and exclusion criteria, sample characteristics, and clinical outcomes was extracted. Eleven randomized controlled trials (16 775 patients) were analyzed, including 5 trials (n=7113) of EES versus paclitaxel-eluting stents, 5 trials (n=7370) of EES versus sirolimus-eluting stents, and 1 trial (n=2292) of EES versus zotarolimus-eluting stents. By 2 years definite ST with EES compared with pooled DES occurred in 0.5% versus 1.3% patients, respectively (relative risk, 0.38; 95% CI, 0.24-0.59; P < 0.0001). Similar results were observed when the broader definition of definite/probable ST was considered (relative risk, 0.46; 95% CI, 0.33-0.66; P < 0.0001). EES compared with other DES reduced the relative risk of early ST (within 30 days), late ST (31 days to 1 year), cumulative 1-year ST, and very late ST (1-2 years). The reduced rate of definite ST observed with EES was consistent across all DES comparators with no interactions apparent during any time interval. Conclusions-EES compared with a pooled group of paclitaxel-eluting stents, sirolimus-eluting stents, and zotarolimus-eluting stents is associated with a significant reduction of definite ST, an effect that appears early and increases in magnitude through at least 2 years. (Circ Cardiovasc Interv. 2012;5:357-364.)
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