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The Prevalence and Management of Metabolic Acidosis of Chronic Kidney Disease
A R Ahmed1, M M Satti2, A E Abdalla1
1Nephrology Department, University Hospital Galway, Newcastle Road, Galway City H91YR1 Ireland
Abstract:
Aim Emerging evidence supports initiating oral sodium bicarbonate (OSB) at a serum bicarbonate (HCO3) level of less than 22mmol/L. We look to identify the prevalence of metabolic acidosis of chronic kidney disease (MA-CKD) and its management with OSB at a regional university hospital. Methods Retrospective data was collected using the national electronic renal database (eMED) to identify chronic kidney disease (CKD) patients with MA-CKD over a one-year period. Results One-hundred and forty-four patients were identified with CKD, of which 131 (89%) were tested for HCO3. MA-CKD was present in 44 patients (34%), all had eGFR< 30ml/min/1.73m2, 7 (16%) were prescribed OSB, 7(16%) OSB was contraindicated, and 37 (84%) patients managed with dietary input only. Mean HCO3 level at initiation in OSB group was 18.3±1mmol/L compared to 19.4±1.4mmol/L in dietary input only group which was statistically significant (p<0.05). Conclusion A high burden of advanced CKD was found in the regional nephrology centre, with one third of patients demonstrating MA-CKD. Majority had dietary input only. Further awareness and consensus need to be established on the benefits of treating MA-CKD with OSB.
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