title: Arterial blood pressure--the pattern of change in twin pregnancies.
abstract: An epidemiological study of all primigravid twin pregnancies delivered in Aberdeen between 1950 and 1969 was performed to determine the pattern of arterial blood pressure changes. There is a greater fall from non-pregnant levels in diastolic blood pressure by mid pregnancy and a greater rise of diastolic pressure by delivery. These changes are independent of age, body size and rate of weight gain during pregnancy. The expected increased incidence of proteinuric pre-eclampsia is also independent of rate of weight gain when defined for twin pregnancies.
mesh_terms: D000328:Adult; D001794:Blood Pressure; D001835:Body Weight; D003971:Diastole; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D008423:Maternal Age; D011247:Pregnancy; D014427:Twins