To evaluate whether a sodium restricted diet can improve the prognosis of heart failure (HF) patients, specifically focusing on mortality and readmission rates.
Key Findings:
Sodium restricted diet group had significantly increased all-cause mortality rate (RR 1.50) and cardiac mortality rate (RR 2.51) compared to control group, based on 16 RCTs with 2260 patients.
No significant difference in HF readmission rate and all-cause readmission rate between groups.
In HFrEF patients and those on diuretics with fluid restriction, sodium restriction was linked to increased risk of all-cause death and HF readmission.
Sodium restriction may improve quality of life but does not significantly affect serum NT-proBNP levels.
Interpretation:
Sodium restriction in HF patients may not reduce readmission risks and could increase mortality, particularly in specific subgroups, highlighting the need for careful dietary management.
Limitations:
The analysis may be limited by the quality of included studies, which could affect the reliability of the findings.
Potential biases in the selection of studies and outcomes measured may influence the results.
Conclusion:
While sodium restriction may enhance quality of life in HF patients, it is associated with increased mortality and readmission risks, especially in certain patient subgroups, necessitating a tailored approach to dietary recommendations.
