Relation of Fractional Flow Reserve After Drug-Eluting Stent Implantation to One-Year Outcomes

William F. FearonChang-Wook NamSeung-Ho HurYun-Kyeong ChoHyoung-Seob ParkHyuck-Jun YoonHyungseop KimIn-Sung ChungYoon-Nyun KimKwon-Bae KimJoon-HyungBon-Kwon KooSeung-Jea Tahk
Dept. of Internal Medicine (내과학); Dept. of Preventive Medicine (예방의학)
Issue Date
American Journal of Cardiology, Vol.107(12) : 1763-1767, 2011
Patients still present with drug-eluting stent (DES) failure despite an angiographically successful implantation. The aim of the present study was to investigate the relation between the fractional flow reserve (FFR) measured after DES implantation and the clinical outcomes at 1 year. A total of 80 patients (mean age 62 years, 74% men, 99 DESs) underwent coronary pressure measurement at maximum hyperemia after successful DES implantation. The composite of major adverse cardiac events (MACE), including death, myocardial infarction, and ischemia-driven target vessel revascularization was evaluated at 1 year. The patients were divided into 2 groups (low-FFR group, FFR <0.90 and high-FFR group, FFR >0.90) according to the median FFR. The mean poststent percent diameter stenosis was 11 5% in the low-FFR group and 12 3% in the high-FFR group (p 0.31). Left anterior descending coronary artery lesions were more frequent in the low-FFR group than in the high-FFR group (82% vs 55%, p 0.02). The mean stent length was greater in the low-FFR group than in the high-FFR group (38 18 vs 28 13 mm, p 0.01). Six cases (7.5%) of MACE occurred during the 1-year follow-up. The rate of MACE was 12.5% in the low-FFR group and 2.5% in the high-FFR group (p <0.01). Receiver operating characteristic curves revealed 0.90 as the best cutoff of FFR after DES implantation for the prediction of 1-year MACE. In conclusion, a poststent FFR of <0.90 correlated with a greater adverse event rate at 1 year. © 2011 Published by Elsevier Inc. (Am J Cardiol 2011;107:1763–1767)
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1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학)
Keimyung Author(s)
남창욱; 허승호; 조윤경; 박형섭; 윤혁준; 김형섭; 김윤년; 김권배; 정인성
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