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随着全世界对维生素K缺乏性出血症的深入研究 ,人们认为引起婴儿发病的主要因素是维生素K(VitK)不易通过胎盘 ;新生儿对维生素K吸收率低。有VKDB高危因素的婴儿更容易发生出血。用维生素K预防可使本病发生率下降 90 %~ 95 % ,预防效果较好。
With the worldwide in-depth study of vitamin K-deficient hemorrhagic disease, it is believed that vitamin K (VitK) is less likely to pass through the placenta; the rate of vitamin K uptake in newborns is low. Infants who are at risk for VKDB are more prone to bleeding. Prevention with vitamin K can reduce the incidence of the disease 90% to 95%, prevention is better.