Chengming Wang1, Guanxun Cheng1, Yibo Duanmu1, Yi Zhu1, Lu Xu1. 1. 1 Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China ; 2 Imaging Department, Peking University Shenzhen Hospital, Shenzhen 518036, China.
Abstract
BACKGROUND: Chronic kidney disease (CKD) is an independent risk factor for cardiovascular events. We evaluated the correlation of coronary plaque characteristics and obstructive stenosis with CKD by coronary computed tomographic angiography (CCTA). METHODS: We enrolled 491 subjects who were suspected coronary artery disease (CAD) undergoing CCTA. Estimated glomerular filtration rate (eGFR) was calculated by the modification of diet in renal disease (MDRD) equation. Patients were subdivided into four groups based on their eGFR: normal GFR (n=213, eGFR ≥90 mL/min/1.73 m(2)), mild renal insufficiency (n=191, eGFR 60-89 mL/min/1.73 m(2)), moderate renal insufficiency(n=78, eGFR <60 mL/min/1.73 m(2), ≥30 mL/min/1.73 m(2)), and severe renal insufficiency (n=9, eGFR <30 mL/min/1.73 m(2), ≥15 mL/min/1.73 m(2)). RESULTS: Spearman correlation regression analysis showed that the prevalence of any plaque, calcified plaque (CP), mixed plaque (MP) were positively correlate with CKD (r=0.173, P<0.001; r=0.127, P=0.005; r=0.171, P<0.001), after adjustment for traditional risk factors the prevalence of any plaque and MP were still positively correlate with CKD (r=0.106, P=002; r=0.178, P<0.001). And the prevalence of any stenosis and severe stenosis were positively correlate with CKD (r=0.13, P<0.001; r=0.149, P<0.001), after adjustment for traditional risk factors were still positively correlate with CKD (r=0.134, P=0.003; r=0.174, P<0.001). CONCLUSIONS: CKD is closely related with occurrence of CAD. CKD patients from mild renal insufficiency to severe renal insufficiency are the risk factors for CAD. More serious renal function impairment will indicates higher risk of coronary plaque, MP and obstructive stenosis.
BACKGROUND:Chronic kidney disease (CKD) is an independent risk factor for cardiovascular events. We evaluated the correlation of coronary plaque characteristics and obstructive stenosis with CKD by coronary computed tomographic angiography (CCTA). METHODS: We enrolled 491 subjects who were suspected coronary artery disease (CAD) undergoing CCTA. Estimated glomerular filtration rate (eGFR) was calculated by the modification of diet in renal disease (MDRD) equation. Patients were subdivided into four groups based on their eGFR: normal GFR (n=213, eGFR ≥90 mL/min/1.73 m(2)), mild renal insufficiency (n=191, eGFR 60-89 mL/min/1.73 m(2)), moderate renal insufficiency(n=78, eGFR <60 mL/min/1.73 m(2), ≥30 mL/min/1.73 m(2)), and severe renal insufficiency (n=9, eGFR <30 mL/min/1.73 m(2), ≥15 mL/min/1.73 m(2)). RESULTS: Spearman correlation regression analysis showed that the prevalence of any plaque, calcified plaque (CP), mixed plaque (MP) were positively correlate with CKD (r=0.173, P<0.001; r=0.127, P=0.005; r=0.171, P<0.001), after adjustment for traditional risk factors the prevalence of any plaque and MP were still positively correlate with CKD (r=0.106, P=002; r=0.178, P<0.001). And the prevalence of any stenosis and severe stenosis were positively correlate with CKD (r=0.13, P<0.001; r=0.149, P<0.001), after adjustment for traditional risk factors were still positively correlate with CKD (r=0.134, P=0.003; r=0.174, P<0.001). CONCLUSIONS: CKD is closely related with occurrence of CAD. CKD patients from mild renal insufficiency to severe renal insufficiency are the risk factors for CAD. More serious renal function impairment will indicates higher risk of coronary plaque, MP and obstructive stenosis.
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