The mean age of the seven infants with vitamin k deficiency was 10. The main symptom of vitamin k deficiency is excessive bleeding. The main symptom of a vitamin k deficiency is excessive bleeding caused by an inability to form blood clots. Vitamin k, a fat soluble vitamin, is a necessary cofactor for the activation of coagulation factors ii, vii, ix, x, and protein c and s. Vitamin k prophylaxis is recommended to prevent the hazard of haemorrhage caused by vitamin k deficiency in newborns. Protect babies from lifethreatening bleedingtalk to. Severe vitamin k deficiency is present in a significant number of newborns at the time of birth. We report a case of late vitamin k deficiency bleeding vkdb in a two monthold girl who had not received prophylaxis at birth. Vitamin k prophylaxis guidelines from stanford university 2006. Vii, ix and x when caused by vitamin k deficiency or interference with vitamin k activity. Vitamin k is given by injectionwithin six hours of birth to prevent vitamin k deficiency bleeding vkdb, a potentially fatal condition. Vitamin k deficiency bleeding in australian infants 1993.
Vitamin k deficiency in adults is rare but does occur in infants. Oral vitamin k 1 administered at birth is effective in normal formulafed infants but may not prevent late vkpd in breastfed infants in whom the deficiency of vitamin k is exacerbated by the low. Vitamin k antagonists exert anticoagulant effects by blocking the carboxylation of glutamic acid residues of the vitamin kdependent coagulation factors during hepatic synthesis, lowering both factor synthesis and function. In contrast, late vkdb, with onset from 2 to 12 weeks of age, is most effectively prevented by parenteral administration of vitamin k. It used to be known as haemorrhagic disease of the newborn hdn but underwent a name change some time in the last decade. The guidelines on vitamin k administration for vitamin k deficiency in infancy, which were proposed by the japan pediatric society in 2011 48.
When intramuscular vitamin k is administered, the risk of vitamin k deficiency bleeding is reduced to 1100,000. Pdf vitamin k deficiency bleeding vkdb is a rare and potentially lifethreatening bleeding disorder of early infancy. National health and medical research council vitamin k administration to newborns. It is used by the body to help blood clot and to stop bleeding. Controversies concerning vitamin k and the newborn. Incidence of late vitamin k deficiency bleeding in. We present the case of a 2 months and 20 days caucasian male, presented for bleeding from the injections sites of vaccines. It is also produced through the activity of enteric flora. Infants who do not receive the vitamin k shot are at risk for developing vkdb.
Vitamin k deficiency bleeding or vkdb, occurs when babies cannot stop bleeding because their blood does not have enough vitamin k to form a clot. As a result, its often called vitamin k deficiency bleeding, or vkdb. We report a case of late vitamin k deficiency bleeding vkdb in a twomonthold girl who had not received prophylaxis at birth. Over 10 years ago, william hathaway described the 50. Learn about vitamin k and vitamin k deficiency bleeding cdc. Prophylactic dosing of vitamin k to prevent bleeding. Pdf vitamin k deficiency bleeding vkdb, formerly known as hemorrhagic disease of the newborn hdn, is a bleeding disorder in neonates.
Vitamin k deficiency an overview sciencedirect topics. Vitamin k deficiency is only considered clinically relevant when prothrombin time increases significantly due to a decrease in the prothrombin activity of blood 3,7. Vitamin k is essential for the synthesis of few coagulation factors. Before having a baby, most parents dont give much thought to the vitamin k injection shot for their newborn. Most vitamins cannot be made by the body, and can only be obtained from food and. Preventiontreatment vitamin k can be given orally in the case of someone who improperly absorbs fat or is at high risk of bleeding, vitamin k can be injected under the skin if a drug is causing vitamin k deficiency, the dose is altered or extra vitamin k is given in people who suffer from both severe liver disorders and vitamin k deficiency. Infants can easily develop vitamin k deficiency owing to poor placental transfer, low vitamin k content in breast milk, and poor intestinal absorption due to immature gut flora and malabsorption. In the setting of vitamin k deficiency, an abnormal form of coagulation factor ii, also referred to as protein induced by vitamin k absence pivkaii. Vitamin k deficiency bleeding revisited hong kong journal of.
This guideline has been formulated to provide recommendations for staff working at national womens hospital with regard to vitamin k. This brochure is based on the joint statement and recommendations on vitamin k administration to newborn infants to prevent vitamin k deficiency bleeding in infancy, that was reissued by the national health. The blood clotting factors of newborn babies are roughly 3060% that of adult values. In the setting of poor nutrition or prolonged antibiotic use, vitamin k deficiency may lead to a coagulopathy. Vitamins are essential to health and growth, and prevention and cure of diseases. Infants are therefore predisposed to having low vitamin k levels, resulting in low levels of vitamin k dependent clotting factors, and an increased risk for bleeding, termed vitamin k deficiency.
Download and print this fact sheet pdf icon pdf 473 kb, 2 pages protect your baby from vitamin k deficiency bleeding. Vitamin k deficiency bleeding and prophylaxis in the newborn. The mechanisms by which anticonvulsant and antituberculosis medications cause vitamin k deficiency bleeding in neonates is not clearly understood, but limited studies suggest that this disorder is a result of vitamin k deficiency and can be prevented by administration of vitamin k to the mother during the last 24 weeks of pregnancy. The reported link between intramuscular vitamin k, childhood malignancy, and leukemia has created difficulties about the appropriate prophylaxis of vitamin kdeficiency bleeding vkpd in neonates. Vitamin k deficiency bleeding vkdb of infancy is a rare but potentially fatal disorder that affects 4. Earlyonset vitamin k deficiency bleeding in the newborn. Oral vitamin k is not as effective as vitamin k by injection and is not approved by the u. Subclinical maternal vitamin k deficiency during pregnancy has been implicated in rare cases of fetal intracranial hemorrhage. Purpose of vitamin k centers for disease control and. Rise in late onset vitamin k deficiency bleeding in young infants. Espanol spanish vitamin k is a substance that our body needs to form clots and to stop bleeding. Vitamin k deficiency bleeding vkdb newborn infants are at risk of vitamin k deficiency. Protect your baby from bleeds talk to your healthcare.
Vitamin k deficiency bleeding vkdb in early infancy. Vitamin k deficiency bleeding is an acquired coagulopathy in newborn infants. Vitamin k is given as an injection to newborns to prevent vitamin k deficiency bleeding. Vitamin k deficiency bleeding vkdb in infancy is classified according to the time of presentation. Severe reactions, including fatalities, have occurred during and immediately after. Prevention of early vitamin k deficiency bleeding vkdb of the newborn, with onset at birth to 2 weeks of age formerly known as classic hemorrhagic disease of the newborn, by oral or parenteral administration of vitamin k is accepted practice. Some vitamin k is also made by the good bacteria that live in our intestines. Prevention of vitamin k deficiency bleeding phillippi.
Vitamin k deficiency bleeding in an apparently healthy newborn infant. Given this infants age, elevated pt and ptt, and lack of vitamin k prophylaxis at birth, the concern for vkdb is high. The document outlines the options for the route of administration of vitamin k. We could be inspired by the guidelines of other european countries, but. The present dutch guideline recommends 1 mg of vitamin k 1 orally at birth, followed by a daily dose of 25. Vitamin k deficiency bleeding vkdb is the name given to the occurrence of haemorrhaging or bleeding in babies in the first weeks of life. Pdf vitamin k deficiency bleeding a case study researchgate. When the bleeding occurs inside the body, it can be difficult to notice.
Pregnant women with vitamin k deficiency hypoprothrombinemia may be at an increased risk for bleeding diatheses during pregnancy and hemorrhagic events at delivery. While women may have misconceptions about vitamin k prophylaxis for their newborns, health care providers should be prepared with factual information. Dear center colleaguehospital chief executive officer. Vitamin k deficiency bleeding vkdb is a rare and potentially lifethreatening bleeding disorder of early infancy. Vkdb can be classified according to the time of presentation after birth into early 024 hours, classical 17 days and late 212 weeks vkdb.
Vitamin chart vitamin deficiency symptoms, benefits. The document also advises whom parents should contact if they require additional information and guidance. Nutrients free fulltext vitamin k deficiency bleeding. He was exclusively breastfed and received a daily oral supplementation with 25. Vitamin k is a fatsoluble vitamin found in leafy green vegetables and many cooking oils. Keep in mind that bleeding may happen in areas other than at a cut or wound.
Pdf vitamin k deficiency bleeding vkdb in early infancy. Food and drug administration fda for use in newborns. Since the introduction of this prophylaxis, the incidence of vitamin k deficiency bleeding vkdb has. Vitamin k deficiency bleeding in an apparently healthy newborn.
Aquamephyton fda prescribing information, side effects. Thus, bleeding and hemorrhage are the classic signs of vitamin k deficiency, although these effects occur only in severe cases. Babies are born with very small amounts of vitamin k stored in their bodies, which. Preventing vitamin k deficiency bleeding vkdb in newborns is an. Vitamin k for newborn babies information for parents nhmrc. Vitamin k deficiency can cause severe bleeding in breastfed infants owing to insufficient amounts of vitamin k in breastmilk. Its just not something that is talked about during prenatal checkups, even though babies have been. Vitamin k deficiency bleeding vkdb of the newborn, previously known as haemorrhagic disease of the newborn, is a rare form of bleeding disorder that affects newborns and young infants due to low stores of vitamin k at birth. In neonatal period, vitamin k deficiency may lead to vitamin k deficiency bleeding vkdb. Vitamin k deficiency bleeding vkdb, formerly known as hemorrhagic disease of the newborn hdn, is a bleeding disorder in neonates that is caused by inadequate serum levels of vitamin k. The bleeding can occur anywhere on the inside or outside of the body. Pdf vitamin k deficiency bleeding vkdb is a rare and potentially life threatening bleeding disorder of early infancy.
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