Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
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Ultrasound Obstet Gynecol · Jul 2014
Review Meta AnalysisPrenatal identification of invasive placentation using magnetic resonance imaging: systematic review and meta-analysis.
To assess systematically the performance of prenatal magnetic resonance imaging (MRI) in diagnosing the presence, degree and topography of disorders of invasive placentation and to explore the role of the different MRI signs in predicting these disorders. The diagnostic accuracy of ultrasound and MRI in the detection of invasive placentation was also compared. ⋯ Prenatal MRI is highly accurate in diagnosing disorders of invasive placentation. Ultrasound and MRI have comparable predictive accuracy. Large population-based studies are needed in order to assess whether ultrasound can predict the depth and topography of placental invasion as reliably as can MRI.
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Ultrasound Obstet Gynecol · Nov 2013
Review Meta AnalysisPrenatal identification of invasive placentation using ultrasound: systematic review and meta-analysis.
The accuracy of prospective sonographic prenatal detection of invasive placentation is unclear. The objective of this study was to conduct a systematic review and meta-analysis to assess the performance of ultrasound in at-risk women for prenatal identification of invasive placentation. ⋯ Ultrasound has a high accuracy for prenatal diagnosis of disorders of invasive placentation in high-risk women. The use of color Doppler improves the test performance.
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Ultrasound Obstet Gynecol · Jun 2013
Review Meta AnalysisUse of prenatal chromosomal microarray: prospective cohort study and systematic review and meta-analysis.
Chromosomal microarray analysis (CMA) is utilized in prenatal diagnosis to detect chromosomal abnormalities not visible by conventional karyotyping. A prospective cohort of women undergoing fetal CMA and karyotyping following abnormal prenatal ultrasound findings is presented in the context of a systematic review and meta-analysis of the literature describing detection rates by CMA and karyotyping. ⋯ We present evidence for a higher detection rate by CMA than by karyotyping not just in the case of abnormal ultrasound findings but also in cases of other indications for invasive testing. It is likely that CMA will replace karyotyping in high-risk pregnancies.
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Ultrasound Obstet Gynecol · May 2013
Meta Analysis Comparative StudyPrevention of perinatal death and adverse perinatal outcome using low-dose aspirin: a meta-analysis.
To compare early vs late administration of low-dose aspirin on the risk of perinatal death and adverse perinatal outcome. ⋯ Low-dose aspirin initiated at ≤ 16 weeks of gestation is associated with a greater reduction of perinatal death and other adverse perinatal outcomes than when initiated at >16 weeks.
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Ultrasound Obstet Gynecol · Sep 2011
Randomized Controlled Trial Meta AnalysisVaginal micronized progesterone and risk of preterm delivery in high-risk twin pregnancies: secondary analysis of a placebo-controlled randomized trial and meta-analysis.
Progesterone treatment reduces the risk of preterm delivery in high-risk singleton pregnancies. Our aim was to evaluate the preventive effect of vaginal progesterone in high-risk twins. ⋯ In high-risk twin pregnancies, progesterone treatment does not significantly improve outcome.