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Original Article

Neonatology (Perinatology)

Association between base excess levels and clinical outcomes among very low birth weight infants: a multicenter birth cohort study in South Korea

Ji Yoo Kim, Hyeon Jin Kim, Heeyoon Choi, Minji Kim, Jinseok Lee, Yong Sung Choi, Dong Keon Yon

Clin Exp Pediatr. 2026;69(7):555-562. Published online May 21, 2026

Question: Is metabolic acidosis at birth in very low birth weight infants (VLBWIs) associated with long-term clinical outcomes?
Finding: Metabolic acidosis at birth was associated with increased mortality, adverse respiratory outcomes, neurological morbidities, and infection-related and gastrointestinal outcomes.
Meaning: VLBWIs with metabolic acidosis are at high risk of systemic complications. This finding emphasizes the need for close monitoring and comprehensive care.

DOI: https://doi.org/10.3345/cep.2025.02817

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