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Objective: We evaluated the impact of chronic kidney disease (CKD) on the presence and severity of aorticstenosis (AS) in patients at high risk for coronary artery disease (CAD).Methods: One hundred and twenty consecutive patients who underwent invasive coronary angiography wereenrolled. Aortic valve area (AVA) was calculated by the continuity equation using transthoracic echocardiography,and was normalized by body surface area (AVA index).Results: Among all 120 patients, 78% had CAD, 55% had CKD (stage 3: 81%; stage 4: 19%), and 34% had AS (AVA <2.0cm2). Patients with AS were older, more often female, and had a higher frequency of CKD than those without AS,but the prevalence of CAD and most other coexisting conventional risk factors was similar between patients with andwithout AS. Multivariate linear regression analysis indicated that only CKD and CAD were independent determinants ofAVA index with standardized coefficients of -0.37 and -0.28, respectively. When patients were divided into 3 groups(group 1: absence of CKD and CAD, n = 16; group 2: presence of either CKD or CAD, n = 51; and group 3: presence ofboth CKD and CAD, n = 53), group 3 had the smallest AVA index (1.19 ± 0.30*# cm2/m2, *p < 0.05 vs. group 1: 1.65 ±0.32 cm2/m2, and #p < 0.05 vs. group 2: 1.43 ± 0.29* cm2/m2) and the highest peak velocity across the aortic valve(1.53 ± 0.41*# m/sec; *p < 0.05 vs. group 1: 1.28 ± 0.29 m/sec, and #p < 0.05 vs. group 2: 1.35 ± 0.27 m/sec).Conclusion: CKD, even pre-stage 5 CKD, has a more powerful impact on the presence and severity of AS thanother conventional risk factors for atherosclerosis in patients at high risk for CAD.
本文 / Central Laboratory, Mie University Graduate School of Medicine
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http://www.cardiovascularultrasound.com/content/9/1/31
DOIinfo:doi/10.1186/1476-7120-9-31
Collection (particular)国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
Date Accepted (W3CDTF)2015-11-01T14:53:18+09:00
Data Provider (Database)国立国会図書館 : 国立国会図書館デジタルコレクション