Vitamin-K status beyond the neonatal period. A prospective study in normal breast-fed and formula-fed infants

Area of Science:

• Neonatal physiology
• Hematology
• Pediatric nutrition

Background:

• Vitamin K is essential for synthesizing key blood clotting factors.
• Newborns are at risk for vitamin K deficiency, potentially affecting hemostasis.
• Understanding the impact of infant nutrition on coagulation is crucial for neonatal care.

Purpose of the Study:

• To investigate the influence of infant feeding methods on vitamin K-dependent clotting factors in newborns.
• To assess prothrombin time (PT) and thrombin time (TT) in relation to diet.
• To determine if breast milk, formula, or combination feeding affects coagulation status without vitamin K prophylaxis.

Main Methods:

• Prospective study of 113 healthy newborns over the first 6 weeks of life.
• Analysis of vitamin K-dependent clotting factors (FII, FVII, FX).
• Measurement of prothrombin time (PT) and thrombin time (TT) in relation to feeding groups (breastfed, formula-fed, combination).

Main Results:

• No significant differences were observed in vitamin K-dependent clotting factors (FII, FVII, FX) among the feeding groups.
• Prothrombin time (PT) and thrombin time (TT) remained unaffected by the infant's diet.
• Infant nutrition method did not demonstrate an influence on the measured coagulation parameters.

Conclusions:

• The method of infant nutrition (breast milk, formula, or combination) does not appear to impact the coagulation status of newborns during the first six weeks of life when vitamin K prophylaxis is withheld.
• These findings suggest that variations in infant feeding do not alter the levels of key vitamin K-dependent clotting factors or related coagulation times in this specific neonatal period.
• Further research may explore long-term implications or specific subpopulations, but initial results indicate nutritional method is not a primary determinant of early neonatal coagulation.