scholarly journals Repeat measurements of uterine artery pulsatility index, mean arterial pressure and serum placental growth factor at 12, 22 and 32 weeks in prediction of pre-eclampsia

2017 ◽  
Vol 50 (2) ◽  
pp. 221-227 ◽  
Author(s):  
S. Andrietti ◽  
S. Carlucci ◽  
A. Wright ◽  
D. Wright ◽  
K. H. Nicolaides
Keyword(s):  
Mean Arterial Pressure ◽  
Growth Factor ◽  
Arterial Pressure ◽  
Pulsatility Index ◽  
Uterine Artery ◽  
Placental Growth Factor

scholarly journals The Use of Biochemical and Biophysical Markers in Early Screening for Preeclampsia in Mongolia

2018 ◽  
Vol 6 (3) ◽  
pp. 57
Author(s):  
Urjindelger Tserensambuu ◽  
Ariunbold Chuluun-Erdene ◽  
Munkhtsetseg Janlav ◽  
Erkhembaatar Tudevdorj
Keyword(s):  
Mean Arterial Pressure ◽  
Arterial Pressure ◽  
Pulsatility Index ◽  
Uterine Artery ◽  
Maternal Serum ◽  
Operating Characteristics ◽  
Early Screening ◽  
Roc Curve Analysis ◽  
Detection Rates ◽  
The Mean

Preeclampsia (PE) is a major cause of maternal and perinatal morbidity and mortality, particularly in developing countries. In Mongolia, preeclampsia and eclampsia have occurred among pregnancy complications at a rate of 25% in recent years. Recent studies in the literature have screened for preeclampsia by combining maternal factors with biomarkers. This study was conducted using prospective cohort research including 393 singleton pregnancies at 11–13+6 weeks. Maternal plasmas pregnancy-associated plasma protein-A (PAPP-A) and maternal serum placental growth factor (PlGF) were measured using Perkin Elmer time-resolved fluoroimmunoassay (DELFIA) kits, and the measurement of mean arterial pressure (MAP) was performed by automated devices and the uterine artery pulsatility index was measured by Doppler ultrasound. In the study population, there were 16.7% showing complicated preeclampsia. The receiver-operating characteristics (ROC) curve analysis showed a sensitivity of 71.21%, and a specificity of 75.54% when the mean arterial pressure cut-off was 89.5 mm; while a sensitivity of 33.36% and specificity of 77.68% were observed when the uterine artery mean pulsatility index (mPI) cut-off was 2.34; a sensitivity of 79.66% and specificity of 44.04% were observed when the PAPP-A cut-off was 529.1 mU/L; and a sensitivity of 74.58% and specificity of 46.6% were observed when the PlGF cut-off was 39.87 pg/mL. The detection rates following the combination of markers with the maternal history were as follows: 62.7% with mean arterial pressure, 69.5–82.9% with two markers 86.5% with three markers and 91.4% with four markers. In conclusion, the mean arterial pressure was highly sensitive and demonstrated its easy usage and cost-effectiveness as a predictive marker for the early screening of preeclampsia from other biomarkers.

scholarly journals “Screening for small-for-gestational age neonates at early third trimester in a high-risk population for preeclampsia”

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Raquel Mula ◽  
Eva Meler ◽  
Sandra García ◽  
Gerard Albaigés ◽  
Bernat Serra ◽  
...  
Keyword(s):  
Growth Factor ◽  
High Risk ◽  
Biochemical Markers ◽  
Pulsatility Index ◽  
Uterine Artery ◽  
Placental Growth Factor ◽  
Fetal Weight ◽  
Third Trimester ◽  
Maternal Characteristics ◽  
Estimated Fetal Weight

Abstract Background Strategies to improve prenatal detection of small-for-gestational age (SGA) neonates are necessary because its association with poorer perinatal outcome. This study evaluated, in pregnancies with first trimester high risk of early preeclampsia, the performance of a third trimester screening for SGA combining biophysical and biochemical markers. Methods This is a prospective longitudinal study on 378 singleton pregnancies identified at high risk of early preeclampsia according to a first trimester multiparametric algorithm with the cutoff corresponding to 15% false positive rate. This cohort included 50 cases that delivered SGA neonates with birthweight < 10th centile (13.2%) and 328 cases with normal birthweight (86.8%). At 27–30 weeks’ gestation, maternal weight, blood pressure, estimated fetal weight, mean uterine artery pulsatility index and maternal biochemical markers (placental growth factor and soluble FMS-Like Tyrosine Kinase-1) were assessed. Different predictive models were created to evaluate their performance to predict SGA neonates. Results For a 15% FPR, a model that combines maternal characteristics, estimated fetal weight, mean uterine artery pulsatility index and placental growth factor achieved a detection rate (DR) of 56% with a negative predictive value of 92.2%. The area under receiver operating characteristic curve (AUC) was 0.79 (95% confidence interval (CI), 0.72–0.86). The DR of a model including maternal characteristics, estimated fetal weight and mean uterine artery pulsatility index was 54% (AUC, 0.77 (95% CI, 0.70–0.84)). The DR of a model that includes maternal characteristics and placental growth factor achieved a similar performance (DR 56%, AUC 0.75, 95% CI (0.67–0.83)). Conclusions The performance of screening for SGA neonates at early third trimester combining biophysical and biochemical markers in a high-risk population is poor. However, a high negative predictive value could help in reducing maternal anxiety, avoid iatrogenic interventions and propose a specific plan for higher risk patients.

Competing Risk Model in Screening for Preeclampsia by Mean Arterial Pressure and Uterine Artery Pulsatility Index at 30-33 Weeks' Gestation

2014 ◽  
Vol 36 (1) ◽  
pp. 18-27 ◽  
Author(s):  
Ahmet Tayyar ◽  
Santiago Garcia-Tizon Larroca ◽  
Leona C. Poon ◽  
David Wright ◽  
Kypros H. Nicolaides
Keyword(s):  
Mean Arterial Pressure ◽  
Arterial Pressure ◽  
Pulsatility Index ◽  
Uterine Artery ◽  
Risk Model ◽  
Competing Risk ◽  
Competing Risk Model

Прогнозирование рождения маловесного для гестационного возраста ребенка: оценка эффективности алгоритма Фонда медицины плода (Fetal Medicine Foundation) в первом триместре беременности

2019 ◽  
pp. 16-32
Keyword(s):  
Mean Arterial Pressure ◽  
Arterial Pressure ◽  
Gestational Age ◽  
Pulsatility Index ◽  
Uterine Artery ◽  
Protein A ◽  
First Trimester ◽  
First Trimester Screening ◽  
Fetal Medicine ◽  
Trimester Screening

Цель исследования - оценка эффективности прогнозирования рождения маловесного для гестационного возраста (МГВ) ребенка по скрининговому алгоритму Фонда медицины плода (Fetal Medicine Foundation). В амбулаторных условиях в 2015-2017 гг. было безвыборочно обследовано 2 500 пациенток в сроках беременности от 11+1 до 13+6 нед. Критериями включения были одноплодная беременность и живой плод в полости матки на момент проведения исследования. Критерии исключения - многоплодная беременность, врожденные пороки развития и хромосомные аномалии плода. Расчет индивидуального риска рождения недоношенного МГВ ребенка осуществлялся с учетом материнских клинико-эпидемиологических характеристик, среднего артериального давления, пульсационного индекса в маточных артериях, РАРР-А в сыворотке крови матери с использованием программного комплекса (ПК) Astraia Software (version 2.8, 3.0) (Германия). Основным изучаемым исходом была масса новорожденного менее 10-го процентиля значений для данного гестационного возраста. 447 случаев были исключены из анализа по причине отсутствия информации об исходах беременности (n = 265), наличия врожденных пороков развития и хромосомных аномалий плода (n = 159), самопроизвольного прерывания беременности до 22 нед (n = 23). В итоговый анализ было включено 2 053 пациентки. 137 (6,7%) новорожденных имели массу менее 10-го процентиля, включая 37 (1,8%) недоношенных, рожденных до 37 нед беременности, и 100 (4,9%) доношенных при родах в сроке ≥37 нед. Для прогнозирования рождения недоношенного МГВ ребенка качество модели скрининга оценивалось как хорошее с AUC 0,836 (95%-й доверительный интервал (ДИ) - 0,819-0,852) (P 0,001). Оптимальный порог отсечки для определения риска рождения недоношенного МГВ ребенка для российской популяции соответствовал значению ≤ 1 : 162, обеспечивая выявление более 83,8% подобных случаев при 23,1%-й фракции ложно-положительных результатов. Для прогнозирования рождения МГВ ребенка в доношенный срок качество модели скрининга не достигло приемлемого - AUC 0,650 (95%-й ДИ - 0,633-0,675). Хорошая эффективность прогнозирования рождения недоношенного МГВ ребенка позволяет относить пациенток с положительными результатами скрининга в группу высокого риска с выработкой индивидуального алгоритма динамического наблюдения за состоянием плода. Ключевые слова: комбинированный скрининг первого триместра беременности, маловесный для гестационного возраста, ассоциированный с беременностью протеин А (РАРР-А), пульсационный индекс в маточных артериях, среднее артериальное давление, combined first-trimester screening, small-for-gestational age, pregnancy-associated plasma protein-A (PAPP-A), uterine artery pulsatility index, mean arterial pressure

First trimester markers of preeclampsia in twins: maternal mean arterial pressure and uterine artery Doppler pulsatility index

2014 ◽  
Vol 34 (10) ◽  
pp. 956-960 ◽  
Author(s):  
R. Svirsky ◽  
S. Yagel ◽  
I. Ben-Ami ◽  
H. Cuckle ◽  
E. Klug ◽  
...  
Keyword(s):  
Mean Arterial Pressure ◽  
Arterial Pressure ◽  
Pulsatility Index ◽  
Uterine Artery ◽  
First Trimester ◽  
Uterine Artery Doppler
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