In healthy women with a history of miscarriage, higher pre-pregnancy blood pressure is associated with a higher risk of pregnancy loss, according to a new analysis conducted by researchers from the National Institute of Child Health and Human Development in Bethesda, Maryland.
The researchers used data from the 2007-2011 Effects of Aspirin on Gestational and Reproduction trial that examined the effects of aspirin on pregnancy. The study, which involved 1.228 women who had experienced a prior pregnancy loss, included blood pressure measurements taken before conception and early in pregnancy.
Previous research regarding pre-pregnancy blood pressure and pregnancy outcomes has been largely inconclusive, but this new analysis suggests miscarriage risk increases by 18 percent for every 10 mm/Hg increase in diastolic blood pressure and 17 percent for every 10 mm/Hg increase in average arterial pressure.
Sourced from: Hypertension