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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 ...
The blood clotting factors of newborn babies are roughly 30–60% that of adult values; this appears to be a consequence of poor transfer of the vitamin across the placenta, and thus low fetal plasma vitamin K. [19] Occurrence of vitamin K deficiency bleeding in the first week of the infant's life is estimated at between 1 in 60 and 1 in 250.
Vitamin K 1-deficiency may occur by disturbed intestinal uptake (such as would occur in a bile duct obstruction), by therapeutic or accidental intake of a vitamin K 1-antagonist such as warfarin, or, very rarely, by nutritional vitamin K 1 deficiency. As a result, Gla-residues are inadequately formed and the Gla-proteins are insufficiently active.
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.
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.
HDN, sometimes referred to as Vitamin K Deficiency Bleeding (VKDB), can lead to serious consequences, such as damage to the brain as a result of uncontrolled bleeding or potentially more fatal outcomes in newborns. Preventative use of vitamin K injections can help reduce risk of HDN. [21] Some parents may refuse the vitamin K shot given at ...
Up to 31 percent of adults may be insufficient in vitamin K, and that could affect your bones, joints, and heart.
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]