Because of the association of placental abruption with hypertensive
disease during pregnancy, interventions which might help prevent
high blood pressure or the sequelae of hypertension might,
in theory, decrease the chances of abruption - this possibility is explored
in other Cochrane reviews (e.g. Abalos 2007; Duley 2005;
Duley 2007; Hofmeyr 2006).