• Curr Med Res Opin · Oct 2020

    Clinical effectiveness and radial artery remodeling assessment via very-high-frequency ultrasound/ultra biomicroscopy after applying slender 7Fr sheath for transradial approach in left main bifurcation disease.

    • Yingkai Xu, Yingkai Li, Hua Shen, Beibei Zhang, Qi Zhao, Yujing Cheng, Ziwei Zhao, Qianyun Guo, Jiaqi Yang, and Yujie Zhou.
    • Department of Cardiology, Beijing Anzhen Hospital, Beijing Institute of Heart Lung and Blood Vessel Disease, Capital Medical University, Beijing, China.
    • Curr Med Res Opin. 2020 Oct 1; 36 (10): 1643-1652.

    ObjectiveTo explore the clinical effect and radial remodeling of transradial slender 7 Fr sheath for left main bifurcation disease (LM bifurcation).MethodsFrom January 2018 to September 2019, 236 patients with LM bifurcation undergoing transradial percutaneous coronary intervention (PCI) from two heart centers were divided into slender 7 Fr sheath group (n = 127) and 6 Fr sheath group (n = 109). Quantitative coronary angiography (QCA) and very high-frequency ultrasound/ultra biomicroscopy (VHFUBM) were used to assess the clinical effect and radial remodeling of transradial sheath.ResultsSlender 7 Fr sheath group had a higher preoperative distal bifurcation angle (67.271 ± 22.886) than 6 Fr group (55.831 ± 20.245) (p < .05). Post-PCI QCA results showed significant differences in minimum lumen diameter at proximal left anterior descending artery (LAD) and left circumflex artery (LCX) between two groups (p < .05). There were no significant differences in target vessel myocardial infarction, target vessel revascularization, death and major adverse cardiocerebrovascular events (MACCE) at 30-day and 1-year follow-up between two groups (p>.05). No significant differences were observed in radial artery diameter (RAD), intimal-medial thickness (IMT) and radial artery injury at 24-h and 90-day follow-up between two groups.ConclusionWith larger main and side branch diameter, larger angle of bifurcation and higher SYNTAX score, transradial slender 7 Fr sheath obtained similar clinical effects as 6 Fr sheath without increasing the occurrence of adverse events. Similar follow-up RAD, IMT and radial artery injury were observed. Therefore, slender 7 Fr sheath has safety and feasibility in applying to transradial LM-Bifurcation PCI.

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