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KMID : 0368120200500040330
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Korean Circulation Journal
2020 Volume.50 No. 4 p.330 ~ p.342
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Role of Carotid Artery Stenting in Prevention of Stroke for Asymptomatic Carotid Stenosis: Bayesian Cross-Design and Network Meta-Analyses
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Roh Jae-Hyung
Cho Hyun-Jung
Lee Jae-Hwan
Kim Yong-Ku
Park Yeong-Woo
Park Jae-Hyeong
Park Hee-Soon
Kim Min-Su
Jin Hyang-Gon
Cheon Ye-Ji
Seong In-Whan
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Abstract
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Background and Objectives: There is insufficient evidence regarding the optimal treatment for asymptomatic carotid stenosis.
Methods: Bayesian cross-design and network meta-analyses were performed to compare the safety and efficacy among carotid artery stenting (CAS), carotid endarterectomy (CEA), and medical treatment (MT). We identified 18 studies (4 randomized controlled trials [RCTs] and 14 nonrandomized, comparative studies [NRCSs]) comparing CAS with CEA, and 4 RCTs comparing CEA with MT from MEDLINE, Cochrane Library, and Embase databases.
Results: The risk for periprocedural stroke tended to increase in CAS, compared to CEA (odds ratio [OR], 1.86; 95% credible interval [CrI], 0.62?4.54). However, estimates for periprocedural myocardial infarction (MI) were quite heterogeneous in RCTs and NRCSs. Despite a trend of decreased risk with CAS in RCTs (OR, 0.70; 95% CrI, 0.27?1.24), the risk was similar in NRCSs (OR, 1.02; 95% CrI, 0.87?1.18). In indirect comparisons of MT and CAS, MT showed a tendency to have a higher risk for the composite of periprocedural death, stroke, MI, or nonperiprocedural ipsilateral stroke (OR, 1.30; 95% CrI, 0.74?2.73). Analyses of study characteristics showed that CEA-versus-MT studies took place about 10-year earlier than CEA-versus-CAS studies.
Conclusions: A similar risk for periprocedural MI between CEA and CAS in NRCSs suggested that concerns about periprocedural MI accompanied by CEA might not matter in real-world practice when preoperative evaluation and management are working. Maybe the benefits of CAS over MT have been overestimated considering advances in medical therapy within10-year gap between CEA-versus-MT and CEA-versus-CAS studies.
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KEYWORD
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Carotid artery stenosis, Carotid endarterectomy
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