Journal
PREGNANCY HYPERTENSION-AN INTERNATIONAL JOURNAL OF WOMENS CARDIOVASCULAR HEALTH
Volume 26, Issue -, Pages 69-74Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.preghy.2021.09.004
Keywords
Hypertension; Preeclampsia; Uterine artery Doppler; Pregnancy outcome; Pregnancy duration
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This study demonstrates that uterine artery (UtA) Doppler is less efficient in predicting adverse maternal outcomes compared to the ISSHP definition of preeclampsia, but is more effective in predicting adverse neonatal outcomes. UtA Doppler is also significantly associated with earlier gestational ages at delivery.
Objectives: To evaluate, in pregnancies complicated by hypertensive disorders of pregnancy (HDP), the predictive role of uterine artery (UtA) Doppler for pregnancy outcome compared to the definition of preeclampsia (PE) established by ISSHP recommendations. Study design: Retrospective cohort study including singleton pregnancies diagnosed with HDP, who underwent UtA Doppler assessment at admission in 2011-2017. The study population was classified considering the presence or absence of PE and according to the presence or absence of abnormal UtA Doppler (mean pulsatility index > 95th percentile). Main outcome measures: Pregnancy outcome, maternal and fetal complications, evaluated as composite outcomes (CO), and duration of pregnancy (from admission to delivery). Results: A total of 311 mother-infant couples was included. The diagnostic ability of the two classifications was analysed comparing the relative likelihood ratio in the Biggerstaff graph. ISSHP definition turned out to be more efficient in detecting maternal adverse CO in comparison to UtA Doppler, relative positive likelihood ratio 1.50 (1.35-1.66) and 1.31 (1.07-1.60). UtA Doppler classification resulted more efficient in predicting adverse neonatal CO than PE definition, relative positive likelihood ratio 2.21 (1.77-2.75) and 1.61 (1.37-1.90). UtA Doppler was significantly associated with delivery at earlier gestational ages both for patients affected by PE and for women affected by HDP without superimposed PE (respectively p = 0.009 and p = 0.037). Conclusions: UtA Doppler at HDP diagnosis is a useful bedside marker of fetal/neonatal complications, and is associated with pregnancy duration.
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