Efficacy and safety of drug-eluting stents in patients with acute ST-segment-elevation myocardial infarction: a meta-analysis of randomized controlled trials.
We compared the efficacy and safety of drug-eluting stents with that of bare-metal stents in patients who experienced acute ST-segment-elevation myocardial infarction (STEMI) and underwent primary percutaneous coronary intervention. To do this, we performed a meta-analysis of 13 randomized controlled trials in which drug-eluting stents were compared with bare-metal stents in STEMI patients. The trials involved 6,769 patients (4,246 received drug-eluting stents and 2,523 received bare-metal stents) and follow-up periods of 6 to 48 months. In comparison with bare-metal stents, drug-eluting stents significantly reduced the incidence of major adverse cardiac events, with a risk ratio (RR) of 0.59 (95% confidence interval [CI], 0.47-0.73; P < 0.00001). Drug-eluting stents were not associated with a significant reduction in overall death (RR = 0.94; 95% CI, 0.74-1.20; P = 0.64), but were associated with significant reductions in recurrent myocardial infarction (RR = 0.76; 95% CI, 0.58-0.98; P = 0.03), target-vessel revascularization (RR = 0.47; 95% CI, 0.39-0.56; P <0.00001), and in-stent restenosis (RR = 0.32; 95% CI, 0.25-0.39; P < 0.00001). Moreover, no significant difference was found in the comparative risk of stent thrombosis (RR = 0.85; 95% CI, 0.63-1.14; P = 0.27).On the basis of risk ratio, we conclude that using drug-eluting stents in STEMI patients who undergo primary percutaneous coronary intervention is safe with regard to stent thrombosis within 48 months, and that drug-eluting stents improve clinical outcomes by reducing the risks of major adverse cardiac events, recurrent myocardial infarction, reintervention, and in-stent restenosis, compared with bare-metal stents. However, in order to investigate possible very late stent thrombosis, follow-up of these trials beyond 48 months is warranted.
Hao
Pan-Pan
PP
Key Laboratory of Cardiovascular Remodeling & Function Research, Chinese Ministry of Education & Chinese Ministry of Public Health, Qilu Hospital, Shandong University, Jinan 250012, People's Republic of China.
Chen
Yu-Guo
YG
Wang
Xing-Li
XL
Zhang
Yun
Y
D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects / Q000295:instrumentation* / Q000401:mortality; D016009:Chi-Square Distribution; D023903:Coronary Restenosis / Q000209:etiology / Q000517:prevention & control; D054855:Drug-Eluting Stents; D019317:Evidence-Based Medicine; D006801:Humans; D008670:Metals; D008875:Middle Aged; D009203:Myocardial Infarction / Q000401:mortality / Q000628:therapy*; D016017:Odds Ratio; D011474:Prosthesis Design; D016032:Randomized Controlled Trials as Topic; D012008:Recurrence; D018570:Risk Assessment; D012307:Risk Factors; D015607:Stents; D013927:Thrombosis / Q000209:etiology / Q000517:prevention & control; D013997:Time Factors; D016896:Treatment Outcome
D008670:Metals