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  • Title: Prevalence of and Predictive Factor for Abdominal Aortic Calcification in Thai Chronic Kidney Disease Patients.
    Author: Lumlertgul D, Kantachuvesiri S, Apichaiyingyurd S, Treamtrakanpon W, Rattanasompattikul M, Gojaseni P, Thanakitcharu P, Trakarnvanich T, Poonvivatchaikarn U, Vareesangthip K, Impact-CKD investigators.
    Journal: Ther Apher Dial; 2017 Dec; 21(6):611-619. PubMed ID: 28976071.
    Abstract:
    Presence and severity of cardiovascular calcifications strongly predict cardiovascular morbidity and mortality in patients with CKD. This multicenter, cross-sectional study primarily aimed to determine prevalence of abdominal aortic calcification (AAC) detected by plain lateral abdominal radiograph, and secondarily aimed to assess predictive factors for AAC. Patients (N = 1500), aged 18-70 years, with CKD stages 3-5D for ≥3 months prior to evaluation, were enrolled at 24 study centers in Thailand; 54.3% were non-dialysis patients. The prevalence of AAC was 70.6% and 70.8% in non-dialysis and dialysis patients, respectively. Patient's advanced age and widening pulse pressure were identified as predictive factors for AAC ≥ 5 in non-dialysis patients, while patient's age, history of coronary heart disease or diabetes, longer dialysis vintage, and increasing corrected serum calcium or high-sensitivity C-reactive protein were identified as such in dialysis patients. With additional regression having covariates in binary, corrected serum calcium ≥9.5 mg/dL gave an OR 1.974 (95% CI: 1.324-2.943) for AAC ≥ 5 among the dialysis patients. AAC in diabetes subgroup (N = 692) was additionally evaluated and found that it was prevalent at 84.7% with increased phosphorus as predictive factor (OR, 1.178; 95% CI: 1.032-1.344) and 1,25 (OH)2 vitamin D as protective factor (OR, 0.983; 95% CI, 0.970-0.996). The prevalence of AAC in the Thai CKD population is lower than that reported in the literature, and yet the burden is prominent in patients coexisting with diabetes. Variable relationships identified in this study may guide preventive measures against cardiovascular complications in CKD patients.
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