ABSTRACT
An understanding of developmental hemostasis is pivotal for optimal prevention, diagnosis,
and treatment of hemostatic problems during childhood. The development of microassays
in the early 1980s enabled researchers to delineate age-dependent features of the
coagulation system and to establish reference ranges for healthy children of all age
groups, from premature infants to adolescents. Based on the results from these studies,
the hemostatic system in the young can be described as evolving, and yet functional,
since healthy fetuses, infants, and children do not suffer hemorrhagic nor thromboembolic
complications spontaneously or in the presence of minor challenges. Plasma concentrations
of most pro- and anticoagulant proteins are decreased throughout childhood but provide
an effective hemostatic balance on a lower level compared with adults. The current
article describes the development of pro- and anticoagulant systems throughout childhood.
KEYWORDS
Coagulation - newborn - children - review