Витамин К-зависимые геморрагические состояния у детей после периода новорожденности

Vitamin K plays a special role in the blood clotting system, as this vitamin is essential for the synthesis of coagulation factors (II, VII, IX, X, proteins C and S) in the liver. Vitamin K in newborns matures to a certain time and the level of vitamin K dependent factors to the age of 6 months should achieve the standards of an adult human. The most frequent complications of abnormalities in the synthesis of vitamin K-dependent factors are hemorrhagic syndromes. There has recently been an increase in cases of hemorrhagic conditions not only in newborns but also in children of early age due to the lack of prevention of vitamin K deficiency at birth. The article analyzes the observation of hemorrhagic conditions developed after the neonatal period in patients with various chronic diseases.