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Midterm outcome of off-pump bypass procedures versus drug-eluting stent for unprotected left main coronary artery disease

 Gijong Yi  ;  Young-Nam Youn  ;  Soonchang Hong  ;  Suk-Won Song  ;  Kyung-Jong Yoo 
 Annals of Thoracic Surgery, Vol.94(1) : 15-22, 2012 
Journal Title
 Annals of Thoracic Surgery 
Issue Date
BACKGROUND: Although surgical revascularization is recommended for the treatment of left main coronary artery (LMCA) disease, percutaneous coronary intervention (PCI) attempts have increased, especially after the introduction of the drug-eluting stent. The goal of this study was to compare the midterm outcomes between drug-eluting stenting and off-pump coronary artery bypass (OPCAB) grafting in LMCA disease. METHODS: Five hundred twelve consecutive patients with unprotected LMCA disease who underwent OPCAB (N = 269) or drug-eluting stenting (N = 243) were enrolled. We compared major cardiac and cerebrovascular events (MACCEs) in a real-world cohort and in a matching patient cohort (N = 256). The duration of mean follow-up was 38 ± 20 months, and the follow-up rate was 97.7%. RESULTS: In a real-world comparison, the OPCAB group showed better 5-year freedom from MACCEs compared with the stenting group (71.5% ± 4.4% versus 67.6% ± 4.0%; p = 0.031), despite worse patient characteristics. After patient matching, the OPCAB group showed more distinct benefit in 5-year freedom from MACCEs (75.3% ± 6.6% versus 62.8% ± 5.4; p < 0.001), including a significantly lower target vessel revascularization (TVR) rate (p < 0.001). In a subgroup analysis, the benefit of OPCAB regarding 5-year freedom from MACCEs was more clearly defined for lesions of the distal LCMA and in LMCA lesions with multivessel disease (p = 0.015, p = 0.004, respectively). CONCLUSIONS: Patients with LMCA disease who were treated with OPCAB showed better 5-year freedom from MACCEs in a real-world practice and in a patient matching cohort compared with the drug-eluting stenting group. TVR was the main factor that made the difference. The benefit of OPCAB was more prominent in distal LMCA lesions and in LMCA lesions with multivessel involvement.
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1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실)
Yonsei Authors
송석원(Song, Suk Won) ORCID logo https://orcid.org/0000-0002-9850-9707
유경종(Yoo, Kyung Jong) ORCID logo https://orcid.org/0000-0002-9858-140X
윤영남(Youn, Young Nam)
이기종(Yi, Gi Jong)
홍순창(Hong, Soon Chang)
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