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Vitamin K prophylaxis and vitamin K deficiency bleeding (VKDB) in early infancy
1Department of Epidemiology and Population Sciences, London School of Hygiene and Tropical Medicine, UK.
Insights
Single parenteral vitamin K prophylaxis significantly prevents early infant bleeding. Oral vitamin K offers some protection but is less effective than injections for preventing vitamin K deficiency bleeding.
Area of Science:
- Pediatrics
- Neonatology
- Public Health
Background:
- Vitamin K deficiency bleeding (VKDB) is a preventable hemorrhagic disorder in newborns.
- Prophylaxis with vitamin K at birth is standard practice to prevent VKDB.
- Different routes of administration (oral vs. parenteral) and dosages exist.
Purpose of the Study:
- To estimate the efficacy of single-dose vitamin K prophylaxis in preventing early infantile VKDB in Germany.
- To compare the effectiveness of parenteral versus oral vitamin K administration.
Main Methods:
- A 15-month survey (1988-1989) of all German pediatric hospitals for VKDB cases.
- Population denominators obtained from a survey of all obstetric hospitals.
- Confirmed VKDB cases with known prophylactic status were analyzed.
Main Results:
- Thirteen cases of early infantile VKDB were confirmed, seven with intracranial hemorrhage.
- Single parenteral vitamin K prophylaxis demonstrated 96.7% efficacy (95% CI: 74-99.6%).
- Single oral vitamin K prophylaxis showed 80.4% efficacy (95% CI: 9.1-95.6%).
Conclusions:
- Single parenteral vitamin K prophylaxis provides substantial protection against early VKDB.
- Single oral vitamin K prophylaxis appears less effective than parenteral administration, though not statistically significant due to wide confidence intervals.
Abstract:
The efficacy of vitamin K prophylaxis (1 mg im or sc, or 1-2 mg orally both given as a single dose at birth) in the prevention of vitamin K deficiency bleeding in early infancy was estimated in Germany during a 15-month period between 1988 and 1989. Cases were identified by a survey of all paediatric hospitals and population denominators by a survey of all obstetric hospitals. Response rates were 85% and 68%, respectively. Thirteen cases of vitamin K deficiency bleeding in early infancy with confirmed prophylactic states were confirmed, seven of whom had intracranial haemorrhage. The estimated efficacy of single parenteral administration of vitamin K versus no prophylaxis was 96.7% (95% confidence interval: 74-99.6%) and for single oral administration versus no prophylaxis 80.4% (9.1-95.6%). Single parenteral vitamin K prophylaxis gave substantial protection against vitamin K deficiency bleeding in early infancy. Single oral prophylaxis appeared to be less effective, although the difference was not significant, as indicated by the wide overlap of the respective 95% confidence intervals.
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