1. Articles from Yutaka Goryo

    1-3 of 3
    1. Neointimal coverage of jailed side branches in coronary bifurcation lesions: an optical coherence tomography analysis

      Neointimal coverage of jailed side branches in coronary bifurcation lesions: an optical coherence tomography analysis

      Objectives: The jailed strut at the side-branch (SB) orifice may be a cause of delayed neointimal coverage and SB flow disturbance after single stenting to bifurcation. The aim of this study was to characterize the exact relationship between the jailed strut pattern at the SB orifice immediately after stent implantation and neointimal coverage of the jailed SB orifice in the chronic phase. Patients and methods: A total of 29 bifurcation (left anterior descending coronary artery and diagonal branch) lesions treated by optical coherence tomography-guide single-stent implantation and followed at 18 months after a percutaneous coronary intervention were included in this ...

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    2. Impact of branching angle on neointimal coverage of drug-eluting stents implanted in bifurcation lesions

      Impact of branching angle on neointimal coverage of drug-eluting stents implanted in bifurcation lesions

      Objectives: To investigate the impact of branching angle (BA) on neointimal coverage of drug-eluting stents (DESs) in bifurcation lesions. Background: Previous experimental studies indicated that BA influences the local flow turbulence and wall shear stress, which are associated with neointimal coverage of DESs. Methods: Fifty-five bifurcation lesions in 47 patients were evaluated by serial optical coherence tomography (OCT) before DES implantation and at follow-up. Neointimal coverage was assessed in cross-sectional OCT images containing the side branch; regions including the side branch ostium (SO) and vessel wall (VW) were assessed separately. BA was measured using angiography (Angio-BA) and longitudinal OCT imaging ...

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    3. Thin-cap fibroatheroma and large calcification at the proximal stent edge correlate with a high proportion of uncovered stent struts in the chronic phase

      Thin-cap fibroatheroma and large calcification at the proximal stent edge correlate with a high proportion of uncovered stent struts in the chronic phase

      Objective: A high proportion of uncovered stent struts is associated with late stent thrombosis after drug-eluting stent (DES) implantation, which frequently results in myocardial infarction or death. However, the predictors of uncovered stent struts remain unknown. Here, using optical coherence tomography (OCT), we studied the baseline tissue characteristics of the target coronary segment and evaluated their influence on the neointimal coverage of the strut in the chronic phase. Methods: We analyzed 118 coronary lesions treated with OCT-guided DES implantation. OCT examinations of target lesions were performed before and after DES implantation, and tissue characteristics were evaluated within 5 mm outer ...

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    1-3 of 3
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  2. Topics in the News

    1. (3 articles) Kawasaki Medical School
    2. (3 articles) Shiro Uemura
    3. (2 articles) Nara Medical University
    4. (2 articles) Tsunenari Soeda
    5. (2 articles) Yoshihiko Saito
    6. (2 articles) Hiroyuki Okura
    7. (2 articles) Satoshi Okayama
    8. (2 articles) Carl Zeiss Meditec
    9. (1 articles) Hiroyuki Kawata
    10. (1 articles) Michiko Watanabe
    11. (1 articles) Teruyoshi Kume
    12. (1 articles) University of Missouri
    13. (1 articles) Johns Hopkins University
    14. (1 articles) Technical University of Munich
    15. (1 articles) UCSD
    16. (1 articles) University of Cambridge
    17. (1 articles) University of Rochester
    18. (1 articles) Gang Yao
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