Abstract：Objective: To explore the relation between serum magnesium and cardiar valve calcification(CVC) in maintenance hemodialysis(MHD) patients. Methods: Patients with age≥18 years old,maintenance hemodialysis for ≥ 3 months were enrolled in this study.We collected their clinical data and blood biochemical indexes,CVC was measured by echocardiography. Logistic regression was used to analyze the relation between serum magnesium and CVC. Results: ①Among 149 MHD patients, serum magnesium average was 1.08±0.16mmol/L and 100 cases were high serum magnesium (67.1%),49 cases were normal serum magnesium(32.9%).98 cases were with CVC (65.8%). There were 60 cases with CVC (60.0%) in the high blood magnesium group, which were significantly lower than those 38 with CVC in the normal serum magnesium. ②Age, dialysis age, coronary heart disease, correction of calcium and serum scale were significantly higher in CVC group than non-CVC group (P <0.05). Serum magnesium level and the incidence of high serum magnesium were significantly higher in non-CVC group than CVC group (P <0.05). ③Logistic regression analysis dispaly: Serum magnesium was independent negatively associated with CVC (P = 0.001); age , dialysis age, serum phosphorus were independent positively associated with CVC (P＜0.05). Serum magnesium was independently negatively associated with MVC,AVC,MVC and AVC (P＜0.05). Serum phosphorus was independently positively associated with MVC, AVC, MVC and AVC (P＜0.05). Dialysis age was independently positively associated with MVC (P＜0.05). Age was independently positively associated with AVC (P＜0.001). Conclusion: The higher prevalence of serum magnesium, the higher serum magnesium and CVC in MHD patients, high serum magnesium can reduce the incidence of CVC in MHD patients; high serum phosphorus is an independent risk factor for CVC.
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2018, Vol. 24 
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