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Newborn infants have low stores of vitamin K, and human breast milk has low concentrations of the vitamin. This combination can lead to vitamin K deficiency and later onset bleeding. Vitamin K deficiency leads to the risk of blood coagulation problems due to impaired production of clotting factors II, VII, IX, X, protein C and protein S by the ...
This alternative is evaluated on a case-by-case basis as there are no guidelines for oral vitamin K for infants in the U.S. [22] Vitamin K supplementation via the oral route of administration may require higher doses in newborns if affected by cholestasis or malabsorption.
Vitamin K is a family of structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. [1] The human body requires vitamin K for post-synthesis modification of certain proteins that are required for blood coagulation ("K" from Danish koagulation, for "coagulation") or for controlling binding of calcium in bones and other tissues. [2]
Babies receive a shot of vitamin K after birth to prevent life-threatening bleeding. But more parents are refusing the injection. The trend is alarming doctors.
Phytomenadione, also known as vitamin K 1 or phylloquinone, is a vitamin found in food and used as a dietary supplement. [6] [7] It is on the World Health Organization's List of Essential Medicines. [8] It is used to treat certain bleeding disorders, [7] including warfarin overdose, vitamin K deficiency, and obstructive jaundice. [7]
As well as the routine dose of vitamin K given to newborns after birth, babies born with fetal warfarin syndrome are given additional doses intramuscularly to overcome any remaining warfarin in the circulation and prevent further bleeding. Fresh frozen plasma is also administered to raise concentrations of active blood clotting factors.
Therefore, the Committee on Nutrition of the American Academy of Pediatrics recommends that 0.5 to 1.0 mg Vitamin K 1 be administered to all newborns shortly after birth. [ 4 ] Postmenopausal and elderly women in Thailand have a high risk of Vitamin K 2 deficiency, compared with the normal value of young, reproductive females. [ 5 ]
Newborn infants are a special case. Plasma vitamin K is low at birth, even if the mother is supplemented during pregnancy, because the vitamin is not transported across the placenta. Vitamin K deficiency bleeding (VKDB) due to physiologically low vitamin K plasma concentrations is a serious risk for premature and term newborn and young infants.