ArticlePediatric research2025
Positive impact of sodium L-lactate supplementation on blood acid-base status in preterm newborns.
Article in Pediatric research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPreclinical studies indicate that lactate is a crucial cerebral energy substrate, with Na-L-lactate administration significantly reducing brain lesion volumes and improving motor and cognitive functions following neonatal hypoxia-ischemia in rat pups. Its neuroprotective effects are linked to neuronal metabolic utilization, making it a promising candidate for treating newborns with hypoxia-ischemia encephalopathy, a condition where hypothermia remains the only established therapy. However, before initiating a clinical trial, it is necessary to assess the effects of Na-L-lactate infusion on blood parameters.
methodsWe retrospectively analyzed blood parameters in 60 premature neonates during their first days of life. Among them, 30 received Na-L-lactate instead of Na-Cl to prevent hyperchloremic acidosis. Blood pH, lactatemia, bicarbonates, glycemia, natremia, chloremia, base excess, and hemoglobin were monitored before, during, and after Na-L-lactate infusion.
resultsOur findings showed that Na-L-lactate infusion lowered blood lactate levels while increasing pH from 7.25 to 7.31. After stopping the infusion, lactatemia was 1.9 mM, and pH reached 7.32. Na-L-lactate supplementation effectively restored normal blood pH, maintained natremia, and prevented hyperchloremia. Notably, even in cases of high initial lactatemia, lactate levels decreased during the infusion.
conclusionOur data are promising and emphasize the need for further research to explore its potential applications in neonatal clinical care. IMPACT: Sodium L-lactate infusion does not increase blood lactate levels and restores normal pH in premature neonates. The study demonstrates that sodium L-lactate infusion avoids hyperchloremia while maintaining sodium levels, offering a potential alternative to sodium chloride. These findings highlight the need for additional research studies to further evaluate the safety, efficacy, and potential applications of sodium L-lactate infusion in neonatal care.
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