Dietary Sodium Intake in Acute Heart Failure

This study aim at assessing the effect of two levels of dietary sodium intake during seven days in hospitalized patients with Acute Decompensated Heart Failure. It is a prospective cohort, randomized, with blinded intervention groups: low sodium diet (the patients will receive 3 g/day of dietary sodium intake), and normal sodium diet (patients will receive 7 g/day of dietary sodium intake). Besides that, both groups will be submitted to a fluid intake limited to 1000 ml/day.

Inclusion criteria

• Patients with Acute Decompensated Heart Failure diagnosis, filling the Framingham diagnostic criteria, hospitalized at campus Hospital das Clínicas of Ribeirão Preto.

Exclusion criteria

• Creatinine clearance <30 ml / min / 1.73 m²;
• Acute coronary syndrome;
• Stroke;
• Dementia;
• Severe cognitive impairment;
• Cancer;
• Decompensated diabetes mellitus;
• Severe liver disease;
• Septic shock or with clinical signs of sepsis;
• Chronic renal parenchymal disease prior to the start of the study;
• ADHF secondary to acute renal failure;
• Nutritional disorders or those who are unable to take oral intake because of vomiting, dysphagia or gastroenteritis.