Efficacy and safety of stenting for elderly patients with severe and symptomatic carotid artery stenosis: a critical meta-analysis of randomized controlled trials.

Meta-analysis results in fixed-effects model showed that compared with CEA, CAS achieved a decreased incidence of myocardial infarction (MI) during periprocedural 30 days ( I 2 =0%, RR=0.44, 95% CI: 0.26–0.75, P =0.003), whereas the difference between the groups did not reach statistical significance during postprocedural 12 months ( I 2 =0%, RR=0.41, 95% CI: 0.15–1.08, P =0.07) and 36 months (RR=0.64, 95% CI: 0.29–1.44, P =0.28), as shown in Figure 5 .

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