The haematologist in neonatology I. Thrombocytopenia, thrombosis and haemostasis in the neonate

Haemostatic problems, either thrombotic or bleeding, are common in sick neonates. Here we review the main clinical problems relating to bleeding and thrombosis, including interpretation of laboratory data. In this article we focus on the common or serious disorders, and consider both the cellular and humeral aspects of coagulation.