Persistent cerebrovascular changes in postpartum preeclamptic women: A Doppler evaluation

Giannina, Gregg; Belfort, Michael A.; Cruz, Arcardia L.; Herd, J. Alan

doi:10.1016/s0002-9378(97)70042-5

Cited by 34 publications

(21 citation statements)

References 10 publications

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“…In our study at 8 weeks after delivery, the systolic, diastolic, and mean velocities, and PI in the MCA, were almost identical to those reported by Giannina and coworkers at 6 weeks after delivery (93.0 versus 93.5 cm/s, 42.8 versus 43.5 cm/s, 63.1 versus 64.0 cm/s, and 0.8 versus 0.74, respectively) (11). Williams and Wilson reported lower MCA resistance in the third trimester of pregnancy (7).…”

Section: Discussionsupporting

confidence: 91%

Maternal cerebral Doppler velocimetry before, during, and after a normal pregnancy: a longitudinal study

Lindqvist

Maršál

Pirhonen

2006

Acta Obstet Gynecol Scand

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Pulsatility index of middle cerebral artery peaked in mid-pregnancy and was constantly increased between 8 and 29 weeks of gestation. The diastolic middle cerebral artery velocity remained fairly constant at about 40 cm/s during the study period, while the systolic velocity peaked at 15 weeks (mean 102 cm/s). Cerebral perfusion pressure dropped to its lowest levels in mid-pregnancy and after delivery.

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Section: Discussionsupporting

confidence: 91%

Maternal cerebral Doppler velocimetry before, during, and after a normal pregnancy: a longitudinal study

Lindqvist

Maršál

Pirhonen

2006

Acta Obstet Gynecol Scand

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“…The only changes of significance were a reduction in the end diastolic ophthalmic artery velocity, and consequently a reduced TAMaxV and increased PI and RI. This is a novel finding, as although other authors have compared postnatal ophthalmic artery Doppler variables in a cohort of previously preeclamptic women with normotensive controls, this is the first study to observe the impact of delivery within the same cohort. The apparent increase in vascular resistance may reflect a healthy cerebrovascular response to the normal changes in cardiac output after delivery, as homeostasis is reestablished through a rise in systemic vascular resistance to prepregnancy levels.…”

Section: Discussionmentioning

confidence: 70%

Optic nerve sonography and ophthalmic artery Doppler velocimetry in healthy pregnant women: an Australian cohort study

Kane

Dennis

Costa

et al. 2019

J of Clinical Ultrasound

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Purpose Maternal ocular sonography offers a window into cerebrovascular and intracranial pressure changes in pregnancy. This study aimed to determine the Doppler velocimetric variables of the ophthalmic artery, and the mean diameter of the optic nerve sheath (ONSD), in an Australian cohort of healthy pregnant women. Methods A prospective observational cohort study of healthy women with uncomplicated singleton pregnancies in the third trimester was undertaken in a tertiary maternity service. A single prenatal ultrasonographic examination was performed on all participants, with a postnatal examination performed on a subgroup with uncomplicated deliveries. Results Fifty women were examined at a mean gestation of 35 weeks. The mean ± SD Doppler variables in the ophthalmic artery were peak systolic velocity (PSV) 41.89 ± 13.13 cm/s, second peak velocity 20.63 ± 8.97 cm/s, end diastolic velocity 9.29 ± 5.13 cm/s, pulsatility index 1.97 ± 0.53, resistive index 0.78 ± 0.07, peak ratio (second peak velocity/PSV) 0.49 ± 0.12, while the mean ONSD was 4.34 ± 0.4 mm. None of these variables had a demonstrable relationship with gestation or mean arterial pressure (MAP), nor did the sheath diameter have a relationship with any of the Doppler variables. Conclusions The ocular sonographic variables observed in this population are similar to those reported in other cohorts. No clear relationship could be identified in this cohort between ophthalmic artery Doppler variables and the ONSD, and between each of these variables and gestation or MAP.

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“…Although studies show that microvascular changes in cerebral arteries resolve spontaneously before six weeks postpartum [21], it is supposed that in most women with a history of hypertensive pregnancy disorders, hypertension will resolve within 12 weeks postpartum or the diagnosis of chronic hypertension should be stated [22].…”

Section: Strengths and Weaknessesmentioning

confidence: 99%

High blood pressure six weeks postpartum after hypertensive pregnancy disorders at term is associated with chronic hypertension

Visser

Hermes

Franx

et al. 2013

Pregnancy Hypertension: An International Journal of Women's Car

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Persistent cerebrovascular changes in postpartum preeclamptic women: A Doppler evaluation

Cited by 34 publications

References 10 publications

Maternal cerebral Doppler velocimetry before, during, and after a normal pregnancy: a longitudinal study

Maternal cerebral Doppler velocimetry before, during, and after a normal pregnancy: a longitudinal study

Optic nerve sonography and ophthalmic artery Doppler velocimetry in healthy pregnant women: an Australian cohort study

High blood pressure six weeks postpartum after hypertensive pregnancy disorders at term is associated with chronic hypertension

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