AVP and necrotizing enterocolitis: The etiological spectrum of neonatal hyponatremia is diverse, including iatrogenic factors, abnormalities in the renal mineralocorticoid pathway, inappropriate antidiuretic hormone secretion (SIADH), acute renal failure, heart failure, and gastrointestinal conditions such as gastroenteritis (Mazzoni et al., 2019), congenital chloride diarrhea (Wedenoja et al., 2010; Cendal et al., 2021), and necrotizing enterocolitis (NEC) (Palleri et al., 2022).