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Augmentation index and pulse wave velocity in normotensive and pre-eclamptic pregnancies


Franz MB, Burgmann M, Neubauer A, Zeisler H, Sanani R, Gottsauner-Wolf M, Schiessl B, Andreas M




Hypertensive disorders during pregnancy remain a major health burden. Normal pregnancy is associated with systemic cardiovascular adaptation. The augmentation index and pulse wave velocity measures may serve as surrogate markers of cardiovascular pathology, including pre-eclampsia. We evaluated these parameters during and after normotensive and pre-eclamptic pregnancies.


Longitudinal cohort trial involving a case-control analysis of healthy women and women with pre-eclampsia.


University hospital.


Fifty-three healthy pregnant women between 11(+6) and 13(+6) gestational weeks, as well as 21 patients with pre-eclampsia.


The augmentation index and pulse wave velocity were measured seven times during pregnancy and postpartum.


Changes in augmentation index and pulse wave velocity during and after healthy pregnancies were measured. The influence of early-onset and late-onset pre-eclampsia on these measurements both during and after pregnancy was evaluated.


The normotensive pregnancies exhibited a significant decrease in the augmentation index from the first trimester to the end of the second trimester; however, the normotensive pregnancies showed an increase in the augmentation index during the third trimester as term approached. The patients with early-onset and late-onset pre-eclampsia displayed a significantly elevated augmentation index during pregnancy. The postpartum augmentation index and pulse wave velocity were significantly elevated in the early-onset pre-eclampsia group.


After pregnancy, early-onset and late-onset pre-eclamptic patients exhibit differences in vascular function. This result indicates the presence of a higher cardiovascular risk in patients after early-onset pre-eclampsia.

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