Does fluid restriction improve outcomes in infants with hypoxic ischemic encephalopathy? A pilot randomized controlled trial.

OBJECTIVE: To evaluate whether a strategy of restricted fluid intake in the first 4 days reduces mortality and morbidity among term neonates with moderate to severe hypoxic ischemic encephalopathy (HIE) treated with therapeutic hypothermia.

STUDY DESIGN: Eighty neonates with HIE were randomized between January 2016 and February 2018 to receive normal fluid intake (n = 40) or restricted fluid intake (two-third of normal intake; n = 40) in the first 4 days of life. The primary outcome was a composite of death or major neurodevelopmental disability at 6 months of age.

RESULTS: The primary outcome occurred in 10 infants (26%) in the fluid-restricted group and 3 infants (8%) in the normal fluid intake group, but the difference was not statistically significant (p = 0.065). Five infants in the fluid-restricted group had hypoglycemia (p = 0.055).

CONCLUSION: Restricted fluid intake did not reduce the composite outcome of death or neurodevelopmental disability and was associated with a trend toward more hypoglycemia.