Vitamin K prophylaxis in neonates: comparing two different oral regimens

Area of Science:

• Pediatric Hematology
• Neonatal Prophylaxis
• Vitamin K Metabolism

Background:

• Vitamin K (VK) deficiency can lead to serious bleeding disorders in newborns.
• Current VK prophylactic guidelines vary, necessitating research into optimal dosing schedules.
• Assessing coagulation markers like PIVKA-II and PT-INR is vital for evaluating VK efficacy.

Purpose of the Study:

• To compare the effectiveness of two different vitamin K (VK) prophylactic regimens in healthy newborns.
• To evaluate the impact of VK prophylaxis on PIVKA-II and PT-INR levels at one month of age.
• To determine if a more frequent VK administration schedule improves coagulation profiles in infants.

Main Methods:

• A prospective study involving 119 healthy newborns receiving 2 mg of VK syrup.
• Infants were randomized into two groups: a 3-time regimen (birth, 5 days, 1 month) and a 13-time regimen (birth, 5 days, then weekly for 11 weeks).
• PIVKA-II and PT-INR levels were measured at 5 days and 1 month to assess coagulation status.

Main Results:

• The 13-time VK regimen significantly reduced PIVKA-II and PT-INR levels in both breastfed and formula-fed infants at 1 month compared to baseline.
• The 3-time VK regimen did not significantly alter PIVKA-II levels and only improved PT-INR in formula-fed infants.
• The 13-time regimen demonstrated a statistically significant enhancement in coagulation markers across feeding types.

Conclusions:

• A 13-time vitamin K (VK) prophylactic regimen is significantly more effective in enhancing infant coagulation profiles than a 3-time regimen.
• The findings support the use of more frequent VK administration for improved neonatal hemostasis.
• Optimized VK prophylaxis can mitigate the risk of VK deficiency bleeding in infants.