Effect Of Calcium And Phosphorus Metabolic Disorder On Arteriovenous Fistula Balloon Dilatation In Hemodialysis Patients

Objective:To evaluate the relationship between calcium and phosphorus metabolic disorder and the effect of arteriovenous fistula balloon dilatation,so as to provide clinical basis for patients to better control the level of calcium and phosphorus and to improve the patency rate after the operation of arteriovenous fistula.Methods:The clinical data of 186 hemodialysis patients who were hospitalized in the First Affiliated Hospital of Chongqing Medical University from July 2015 to December 2016 were retrospectively analyzed.They were divided into the control group(calcium phosphorus product?55mg2/dl2)and the hypercalcium-phosphorus product group(calcium phosphorus product?55mg2/dl2).The survival of fistula after balloon dilatation was compared between two groups and statistically analyzed.Results:Among the 186 patients,there were 97 patients whose calcium and phosphorus product<55 mg~2/dl~2,and 89 patients whose calcium and phosphorus product>55 mg~2/dl~2.There was no difference in age,gender,hypertension,diabetes and smoking history between the two groups.The power loss of postoperative arteriovenous fistula in the control group was significantly lower than that in the high calcium and phosphorus product group(40.2%vs 57.3%,P=0.02).In the 90 cases(48.4%)with secondary loss of arteriovenous fistula after PTA operation,the mean survival time of the loss of arteriovenous fistula in the control group was significantly longer than that in the hypercalcium-phosphorus product group(P<0.001).Conclusion:The risk of recurrent loss of arteriovenous fistula after balloon dilatation in patients with high calcium phosphorus product was greater.And the operation effect of the high calcium and phosphorus product group was poor.