Journal
FETAL DIAGNOSIS AND THERAPY
Volume 31, Issue 1, Pages 42-48Publisher
KARGER
DOI: 10.1159/000335366
Keywords
First-trimester screening; Blood pressure; Preeclampsia; Methodology
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Funding
- Fetal Medicine Foundation (UK) [1037116]
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Objectives: To identify the best protocol for measurement of mean arterial pressure (MAP) in early pregnancy for the prediction of preeclampsia (PE). Methods: This was a prospective study in singleton pregnancies attending for a routine hospital visit at 11-13 weeks' gestation when a minimum of four recordings of MAP were taken from each arm. The performance of screening for PE by different combinations of MAP was compared to the protocol of the National Heart Foundation of Australia (NHFA). Results: The MAP was measured in 587 (2.4%) cases that developed PE and in 22,900 that were unaffected by hypertensive disorders in pregnancy. The area under the receiver operating characteristic curve (AUROC) for prediction of PE by MAP as recommended by the NHFA protocol was 0.773 (95% CI 0.768-0.778). This AUROC was not significantly different from the AUROC obtained by the average MAP of the first three measurements from one arm (0.765, 95% CI 0.760-0.771) or the average of the first (0.766, 95% CI 0.760-0.771), the first two (0.771, 95% CI 0.766-0.777), or the first three measurements from the two arms (0.773, 95% CI 0.768-0.778). Conclusion: Performance of screening for PE by taking the average of a minimum of two measurements from both arms is comparable to the NHFA protocol. Copyright (C) 2012 S. Karger AG, Basel
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