Patients in the intervention group receive regular sodium-restriction education by a dietician, which entails introducing food types and cooking skills, quantifying salt intake with a special spoon and recording detailed interactive food diary. Sodium excretion was measured using one 24-hour urine collection regularly to assess dietary compliance and enable feedback. The test persons with sodium excretion higher than 90mmol/24h will receive intensive education. Test persons in the control group receive standard care. After 2 weeks in study, all test persons visit the outpatient clinic for measurements and data collection. Within 3 months of total study duration, data collection and measurements take place at the end of every month.~At each timepoint blood and 24-hourly urine is collected, test persons fill out questionnaires.
The aim of this study is to evaluate the effects and efficacy of dietary sodium restriction by mean of a new healthcare approach in patients with immunoglobulin A nephropathy. The test persons in the intervention group are actively supported to adhere to a restricted sodium diet with a structured education program in combination with regular sodium excretion monitoring.