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Guidelines for vitamin K prophylaxis in newborns
1Canadian Paediatric Society, Fetus and Newborn Committee, Ottawa, Ontario.
Paediatrics & Child Health
|March 29, 2019
Summary
A single intramuscular vitamin K injection at birth is the most effective way to prevent vitamin K deficiency bleeding (VKDB) in newborns. Oral vitamin K is less effective and should only be used if parents decline the injection.
Area of Science:
- Neonatal Medicine
- Pediatrics
- Pharmacology
Background:
- Newborns face risks of vitamin K deficiency bleeding (VKDB) due to low prenatal stores and vitamin K levels in breast milk.
- VKDB can lead to serious health complications if not prevented.
Purpose of the Study:
- To review the evidence on vitamin K administration methods for preventing VKDB in newborns.
- To provide recommendations for routine vitamin K prophylaxis in neonates.
Main Methods:
- Systematic review of existing scientific evidence on vitamin K administration routes (IM, PO, IV).
- Analysis of comparative effectiveness of different vitamin K prophylaxis strategies.
Main Results:
- A single intramuscular (IM) dose of vitamin K at birth is highly effective in preventing VKDB.
- Oral (PO) vitamin K, whether single or repeated doses, is less effective than IM administration.
- Evidence is insufficient to support routine intravenous vitamin K for preterm infants in intensive care.
Conclusions:
- Routine IM administration of a single vitamin K dose (0.5-1.0 mg) is recommended for all newborns.
- PO vitamin K should be reserved for cases where parents refuse IM administration, with clear counseling on increased VKDB risk.
- Further research is needed for optimal vitamin K strategies in specific neonatal populations.
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