Central Arkansas Veterans Healthcare System & University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA.
Catheter Cardiovasc Interv. 2011 Feb 15;77(3):367-9. doi: 10.1002/ccd.22806.
This case illustrates that fractional flow reserve (FFR) in addition to the severity and length of the coronary stenosis is critically dependent on the extent of viable myocardium perfused. In the presented case, the left anterior descending artery (LAD) that had modest angiographic stenosis supplied collaterals to the entire left ventricle. After recanalization of chronic total occlusions (CTO) of the right and circumflex arteries, FFR in the LAD had normalized.
本病例表明，除了冠状动脉狭窄的严重程度和长度外，血流储备分数（FFR）还严重依赖于受灌注的存活心肌的范围。在本病例中，有适度血管造影狭窄的左前降支（LAD）为整个左心室提供了侧支循环。右冠状动脉和回旋支的慢性完全闭塞（CTO）再通后，LAD 的 FFR 恢复正常。
