Pregnant patients with antiphospholipid syndrome (APS) may suffer from
recurrent pregnancy loss, pre-eclampsia, intrauterine growth restrict
ion and placental abruption. These conditions inevitably result in a h
igh incidence of premature delivery with all the neonatal complication
s that follow. The mechanism underlying these adverse pregnancy outcom
es has not yet been established. This may be primarily a maternal dise
ase process with secondary placental maldevelopment and/or malfunction
. Alternatively, there may be primary placental damage mediated direct
ly or indirectly by antiphospholipid antibodies. The safe and successf
ul treatment of pregnant women with APS lies in the understanding of t
he aetiology of this condition and the mechanism by which complication
s in pregnancy may arise. In this article we highlight areas in which
research may be targeted such that our understanding of the pathogenes
is of adverse pregnancy outcome may be enhanced.