Publications by authors named "Karen Hannaford"

 It is unclear how adherence to the Institute of Medicine's (IOM) guidelines for weight gain affects pregnancy outcomes.  We investigated how weight gain outside the IOM's recommendations affects the risks of adverse pregnancy outcomes.  We performed a secondary analysis of a prospective cohort study including singleton, nonanomalous fetuses.

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 We evaluated electronic fetal (heart rate) monitoring (EFM) patterns among very preterm infants with and without intraventricular hemorrhage (IVH) to evaluate the test characteristics of EFM for the prediction of IVH.  We performed a case-control study of preterm infants born ≤ 30 weeks' gestation over a 6-year period. We evaluated differences in EFM patterns between those (cases) with and without IVH (controls).

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Objectives: The purpose of this study was to compare the use of vascular indices derived from the whole placenta to those from the placental bed only for predicting preeclampsia and to determine whether the addition of pregnancy-associated plasma protein A (PAPP-A) and mean uterine artery Doppler values improves prediction.

Methods: We conducted a secondary analysis of a prospective cohort of women with singletons between 11 and 14 weeks' gestation undergoing sonography for aneuploidy screening. Placental vascularization indices from the whole placenta versus the placental bed were combined with first-trimester maternal serum PAPP-A levels, mean uterine artery Doppler values, or the combination of both to predict the development of preeclampsia or early preeclampsia (delivery <34 weeks).

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Objectives: To determine whether umbilical cord cysts found by transvaginal sonography in the first trimester of pregnancy are associated with poor pregnancy outcomes.

Methods: We conducted a matched cohort study between July 2006 and July 2008. Patients with umbilical cord cysts found on transvaginal sonography in the first trimester were matched to patients with normal umbilical cords.

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