Younus Masood, Seto Arnold H
Department of Medicine, University of California, 101 The City Drive South, Orange, CA 92868, USA.
Department of Medicine, University of California, 101 The City Drive South, Orange, CA 92868, USA; Department of Medicine, Veterans Administration Long Beach Health Care System, 5901 East 7th Street, 111C, Long Beach, CA 90822, USA.
Interv Cardiol Clin. 2019 Apr;8(2):121-129. doi: 10.1016/j.iccl.2018.11.003. Epub 2019 Jan 30.
Instantaneous wave-free ratio (iFR) is a vasodilator-free index of coronary blood flow used for revascularization decision-making. iFR-based revascularization also had a decreased rate of adverse effects from vasodilators, shorter procedure times, and lower revascularization rates. iFR-pullback predicts post-percutaneous coronary intervention physiologic outcomes in tandem and diffuse coronary lesions. iFR may be particularly useful in patients with potential adenosine resistance, contraindications to adenosine, and multivessel or serial lesions. iFR is a useful tool both with and without fractional-flow reserve for revascularization planning.
瞬时无波比值（iFR）是一种用于血管重建决策的无血管扩张剂的冠状动脉血流指数。基于iFR的血管重建还降低了血管扩张剂的不良反应发生率、缩短了手术时间并降低了血管重建率。iFR回撤可预测经皮冠状动脉介入术后串联和弥漫性冠状动脉病变的生理结果。iFR在潜在腺苷抵抗、腺苷禁忌证以及多支血管或连续性病变的患者中可能特别有用。对于血管重建规划，无论有无血流储备分数，iFR都是一种有用的工具。
