Factors influencing the functional significance in intermediate coronary stenosis

作     者：Li-Jie SUN Gui-Song WANG Ming CUI Li-Jun GUO Yong-Zhen ZHANG Fu-Chun ZHANG Jie NIU Jiang-Li HAN Wei-Xian XU Dan ZHU Wei GAO 

作者机构：Department of Cardiology Peking University Third Hospital 49 North Huayuan Road Haidian D&trict Beijingl O0191 China 

出 版 物：《Journal of Geriatric Cardiology》 (老年心脏病学杂志（英文版）)

年 卷 期：2015年第12卷第2期

页      面：107-112页

核心收录：

学科分类：071011[理学-生物物理学] 0710[理学-生物学] 02[经济学] 0202[经济学-应用经济学] 020208[经济学-统计学] 07[理学] 0714[理学-统计学（可授理学、经济学学位）] 070103[理学-概率论与数理统计] 0701[理学-数学] 

基　　金：supported by grants from the Capital Characteristic Clinical Application Research from Beijing Science and Technology Committee 

主　　题：Fractional flow reserve Influencing factors Intermediate coronary lesion Quantitative coronary angiography 

摘      要：Objective To analyze the influencing factors of the functional significance determined by fractional flow reserve （FFR） in interme- diate coronary artery stenosis. Methods The study enrolled 143 patients with 203 intermediate coronary lesions. Pressure-derived FFR of these lesions was gained at maximal hyperemia induced by intravenous adenosine infusion. An FFR 〈 0.80 was considered as abnormal functional significance. Anatomic parameters at the lesion sites were obtained by off-line quantitative coronary angiography analysis （QCA）. The predictive value of the demographic characteristics and anatomic parameters for FFR in these intermediate lesions was assessed using multiple linear and binary logistic regression analysis. Results Overall, FFR 〈 0.8 was found in 70 （34%） of the total 203 intermediate coronary lesions. FFR values were positively correlated with QCA-measured minimum lumen diameters （MLD, r = 0.372, P = 0.000） and the reference vessel diameters （RVD, r = 0.217, P〈 0.002） were negatively correlated with percent area stenosis （AS, r = -0.251, P = 0.000） and percent diameter stenosis （DS, r = -0.210, P = 0.000）. Age, MLD and the lesion location in different coronary arteries were the inde- pendent determinants of FFR 〈 0.8. Conclusions MLD can predict the functional significance of intermediate coronary stenosis, while age and the lesion location in different coronary arteries should be taken into account as important influencing factors of FFR values.