Vitamin K deficiency and hemorrhage in infancy
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Published on: August 25, 2022
1Department of Pediatrics, University of Wisconsin, Madison, USA.
Insights
Vitamin K deficiency bleeding in newborns remains a pediatric concern. Intramuscular vitamin K prevents most bleeding, but oral vitamin K use is controversial, especially for premature infants.
Area of Science:
- Pediatrics
- Neonatology
- Nutritional Science
Background:
- Vitamin K deficiency bleeding (VKDB) is a significant concern in infants.
- Breastfed infants have a higher risk of VKDB due to low vitamin K levels in human milk.
- Intramuscular vitamin K is a standard prophylaxis, but concerns exist regarding childhood cancer risk.
Purpose of the Study:
- To review the efficacy and controversies surrounding vitamin K prophylaxis in newborns.
- To discuss the risks and benefits of different vitamin K administration routes.
- To highlight the need for improved detection and alternative prophylaxis methods.
Main Methods:
- Literature review of studies on vitamin K prophylaxis in newborns.
- Analysis of data regarding vitamin K content in human milk versus infant formula.
- Evaluation of the association between vitamin K administration and childhood cancer.
- Assessment of vitamin K's role in preventing intraventricular hemorrhage (IVH) in premature infants.
Main Results:
- Intramuscular vitamin K effectively prevents VKDB in newborns, including exclusively breastfed infants.
- Oral vitamin K prophylaxis shows controversial results and is not universally adopted.
- Evidence for vitamin K's role in preventing IVH in premature infants is insufficient.
- Human milk contains significantly lower vitamin K levels than standard infant formulas.
Conclusions:
- Intramuscular vitamin K remains a primary method for preventing VKDB in newborns.
- Oral vitamin K prophylaxis presents ongoing controversies and requires further investigation.
- Development of better methods for early vitamin K deficiency detection and alternative prophylaxis is needed.
Abstract:
Hemorrhage in the infant from vitamin K deficiency is still a concern in pediatrics. Vitamin K given intramuscularly will largely prevent hemorrhagic disease in the newborn, even in infants who are exclusively breast-fed and are thus at the greatest risk for bleeding. The vitamin K content of human milk is very low compared with standard infant formulas. Results with oral vitamin K prophylaxis, currently used in some countries following the association found in a single report between childhood cancer and intramuscular vitamin K, are far more controversial. Any role of vitamin K in the prevention of IVH in premature infants has not been sufficiently demonstrated. Ongoing developments in this field will lead to improved methods of detecting early vitamin K deficiency and perhaps suitable alternatives to intramuscular vitamin K prophylaxis in the newborn.
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