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  • Title: Serum magnesium level and vascular stiffness in children with chronic kidney disease on regular hemodialysis.
    Author: Zaher MM, Abdel-Salam M, Abdel-Salam R, Sabour R, Morsy AA, Gamal D.
    Journal: Saudi J Kidney Dis Transpl; 2016 Mar; 27(2):233-40. PubMed ID: 26997375.
    Abstract:
    Chronic kidney disease (CKD) patients have a high prevalence of vascular calcifications, and cardiovascular disease is the leading cause of death in this population. Magnesium (Mg) depletion may be the missing link between multiple cardiovascular risk factors and the development of atherosclerosis. In this study, we aimed to assess the relationship between serum Mg levels and vascular stiffness in children with CKD on regular hemodialysis (HD). The study included 25 children with CKD on regular HD in our center; the study included also 25 healthy children age-and sex-matched as a control group. Serum Mg levels were measured, and Doppler ultrasound assessment of the intima-media thickness (IMT) and the peak systolic velocities (PSVs) of the main arteries including the (aorta, carotid, and femoral) arteries were recorded in the study patients. There were significantly lower serum Mg levels in children on regular HD than in the controls (1.7 ± 0.43 mg/dL vs. 2.31 ± 0.12 mg/dL, respectively, P = 0.001). There was a significant increase in the aorta and carotid IMT in the study group than in the controls (0.45 ± 0.07 mm vs. 0.40 ± 0.09 mm; 0.98 ± 0.57 mm vs. 0.55 ± 0.1 mm, P = 0.034 and 0.001, respectively), whereas there were no significant differences regarding the PSV of the carotid, aorta, and femoral arteries between the study patients and the controls (P >0.05). A negative correlation was found between serum Mg level with aortic IMT (AIMT) (r = -0.682; P = 0.000). In addition, a significant negative correlation was found between the AIMT with systolic and diastolic blood pressure (r = 0.447, P = 0.025, 0.472, P = 0.017), respectively. We conclude that lower serum Mg levels were associated with vascular calcification in chronic HD children. Confirmation of our results warrants further study.
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