Definition of hypertensive disorders of pregnancy
A wide diversity of terminology and diagnostic criteria have been used over the years to classify
the hypertensive disorders of pregnancy and define pre-eclampsia. Several internationally recognised
definitions are available,1 but at present there is no universal classification system or definition
of pre-eclampsia. The hypertensive disorders of pregnancy have four defined categories, characterised
in Table 1. These are gestational hypertension; pre-eclampsia and eclampsia; superimposed