[Neonatal hyponatremia from maternal origin. Three cases (author's transl)]

Area of Science:

• Obstetrics and Gynecology
• Neonatology
• Endocrinology

Background:

• Maternal toxemia, a condition during pregnancy, poses risks to both mother and fetus.
• Treatment often involves managing fluid and electrolyte balance, including sodium levels.
• Understanding the impact of interventions on electrolyte homeostasis is critical.

Observation:

• This study observed cases of maternal toxemia treated with diuretics and dietary sodium restriction prior to delivery.
• Plasma renin activity and aldosterone concentration were measured to monitor treatment effects.
• Two cases involved labor augmentation with oxytocin infusion.

Findings:

• Sodium depletion and hemodilution were identified as key factors contributing to maternal and neonatal hyponatremia.
• Electrolyte imbalances were observed in both mothers and newborns following treatment protocols.
• The study highlights the complex interplay of physiological changes during toxemia management.

Implications:

• Findings emphasize the need for careful monitoring of sodium levels in infants born to mothers with toxemia.
• Appropriate sodium supplementation strategies are essential for managing neonatal hyponatremia.
• This research informs clinical practice regarding electrolyte management in high-risk pregnancies.