From the Research
For someone with a left ventricular ejection fraction (LVEF) of 45%, fluid intake should generally be limited to about 1.5 to 2 liters (approximately 6-8 cups) of water per day. This recommendation balances hydration needs while preventing excess fluid that could strain the heart. However, this is not a strict restriction since an LVEF of 45% represents only mild impairment (normal is typically above 50%). Patients should monitor for signs of fluid overload such as sudden weight gain, swelling in the ankles or feet, or increased shortness of breath, which might indicate a need to further restrict fluids.
Key Considerations
- Individual fluid needs may vary based on factors like body weight, climate, activity level, and other medical conditions.
- It's essential to discuss specific fluid recommendations with your cardiologist, who may adjust this guidance based on your complete medical profile, medications (especially diuretics), and how your heart condition progresses over time.
- The most recent and highest quality study, 1, provides evidence on the management of heart failure with preserved ejection fraction, but does not directly address fluid intake recommendations.
- However, the study suggests that beta-blockers and inhibitors of the renin-angiotensin-aldosterone system may be beneficial for patients with heart failure and reduced or mid-range ejection fraction, which may be relevant for patients with an LVEF of 45%.
- Another study, 2, found that beta-blockers improve LVEF and prognosis for patients with heart failure in sinus rhythm with a reduced LVEF, including those with an LVEF of 40-49%.
- Overall, while there is no direct evidence on fluid intake recommendations for patients with an LVEF of 45%, the available evidence suggests that a moderate fluid intake, combined with careful monitoring and adjustment of medications, can help manage heart failure and prevent complications.