Vit K缺乏与新生儿出血性疾病相关,生后补充Vit K可预防Vit K缺乏症。但最佳给药方法尚有争论。该文作者评价了1周龄以上婴儿口服给药与肌注给药是否具有同样的预防作用。病人与方法研究对象为孕龄37周以上,出生时体重大于第2、3百分位数,Apgar评分5分钟时大于7。孕妇体健,未曾服用Vit K、抗凝、抗生素或抗癫痫药。总共331例自然顺产婴儿,他们均母乳喂养。将 Vit K deficiency is associated with neonatal hemorrhagic disease and Vit K supplementation after birth can prevent Vit K deficiency. However, the best method of administration is still controversial. The authors assessed whether oral administration of infants over 1 week of age had the same preventive effect as intramuscular administration. Patients and Methods Subjects were older than 37 weeks and had a birth weight greater than the 2nd and 3rd percentiles, with an Apgar score greater than 7 at 5 minutes. Healthy pregnant women, did not take Vit K, anticoagulants, antibiotics or antiepileptic drugs. A total of 331 cases of spontaneous natural birth, they are breastfeeding. will