4.6 Article

Attenuated cognitive functioning decades after preeclampsia

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MOSBY-ELSEVIER
DOI: 10.1016/j.ajog.2023.02.020

Keywords

cognition; executive function; long-term effect; maternal health; obstetrical complication; postpartum; preeclampsia; working memory

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This study investigates the impact of preeclampsia on maternal cognitive functioning decades after pregnancy. The results show that women who had preeclampsia are 9 times more likely to experience clinical attenuation of higher-order cognitive functions compared to women who had a normotensive pregnancy. These differences persist for at least 19 years postpartum. Women with lower educational attainment, mood or anxiety disorders, or obesity are particularly at risk.
BACKGROUND: Preeclampsia, a hypertensive pregnancy disorder, is a leading cause of maternal and fetal morbidity and mortality, with remote cardio-and cerebrovascular implications. After preeclampsia, women may report serious disabling cognitive complaints, especially involving executive function, but the extent and time course of these complaints are unknown.OBJECTIVE: This study aimed to determine the impact of preeclampsia on perceived maternal cognitive functioning decades after pregnancy.STUDY DESIGN: This study is part of a cross-sectional case -control study named Queen of Hearts (ClinicalTrials.gov Identifier: NCT0 2347540), a collaboration study of 5 tertiary referral centers within the Netherlands investigating long-term effects of preeclampsia. Eligible participants were female patients aged =18 years after preeclampsia and after normotensive pregnancy between 6 months and 30 years after their first (complicated) pregnancy. Preeclampsia was defined as new-onset hypertension after 20 weeks of gestation along with proteinuria, fetal growth restriction, or other maternal organ dysfunction. Women with a history of hypertension, autoimmune disease, or kidney disease before their first pregnancy were excluded. Attenuation of higher-order cognitive functions, that is, executive function, was measured with the Behavior Rating Inventory of Executive Function for Adults. Crude and covariate-adjusted absolute and relative risks of clinical attenuation over time after (complicated) pregnancy were determined with moderated logistic and log-binomial regression.RESULTS: This study included 1036 women with a history of preeclampsia and 527 women with normotensive pregnancies. Regarding overall executive function, 23.2% (95% confidence interval, 19.0-28.1) of women experienced clinically relevant attenuation after preeclampsia, as opposed to 2.2% (95% confidence interval, 0.8-6.0) of controls immediately after childbirth (adjusted relative risk, 9.20 [95% confidence interval, 3.33-25.38]). Group differences diminished yet remained statistically significant (P < .05) at least 19 years postpartum. Regardless of history of preeclampsia, women with lower educational attainment, mood or anxiety disorders, or obesity were especially at risk. Neither severity of preeclampsia, multiple gestation, method of delivery, preterm birth, nor perinatal death was related to overall executive function.CONCLUSION: After preeclampsia, women were 9 times more likely to experience clinical attenuation of higher-order cognitive functions as opposed to after normotensive pregnancy. Despite overall steady improvement, elevated risks persisted over decades after childbirth.

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