Results 21 to 30 of about 2,999 (125)

Cost–benefit analysis of first‐trimester pre‐eclampsia screening: comparison of multivariable Gaussian algorithm with and without placental growth factor

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 2, Page 162-167, February 2026.
ABSTRACT Objective Pre‐eclampsia (PE) is a leading cause of maternal and neonatal morbidity and mortality worldwide. Early identification of high‐risk pregnancies in the first trimester allows preventive treatment with low‐dose aspirin. This study aimed to evaluate whether multivariable Gaussian algorithm‐based PE screening strategies, with and without
E. Bonacina   +10 more
wiley   +1 more source

正常妊娠孕妇外周血及蜕膜中CD4+CD25+调节性T细胞比例的变化

open access: yesZhongguo shiyan zhenduanxue, 2009
目的研究正常妊娠孕妇外周血及蜕膜中CD4+CD25+T细胞的比例变化,探讨CD4+CD25+T细胞在母胎免疫调节中的作用。方法应用流式细胞技术检测正常妊娠孕妇早期、晚期、分娩发动期外周血及蜕膜中CD4+CD25+T细胞的比例变化。结果正常妊娠过程中孕妇外周血中CD4+CD25+T细胞比例变化:妊娠早期较高,明显高于妊娠晚期及分娩发动期 ...
刘德红, 凌斌, 蒋丽莎, 周颖
doaj  

Risk of pre‐eclampsia according to gestational age across three decades: population‐based study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 2, Page 155-161, February 2026.
ABSTRACT Objectives To determine the risk of pre‐eclampsia in ongoing pregnancies according to gestational age. We also studied whether the gestational‐age‐specific risks of developing pre‐eclampsia have changed over recent decades. Methods This was a population‐based study using data from the Medical Birth Registry of Norway.
C. Haavaldsen, O. Thomas, A. Eskild
wiley   +1 more source

重度子痫前期孕妇不良妊娠结局的危险因素分析

open access: yesZhongguo shiyan zhenduanxue, 2014
目的探讨重度子痫前期孕妇发生不良妊娠结局的相关危险因素。方法回顾性分析2012年6月至2013年6月在汕头大学医学院第一附属医院住院分娩的重度子痫前期孕妇122例临床资料,按妊娠结局分为不良妊娠结局组27例和良好妊娠结局95例。结果①一般资料:两组孕妇妊娠终止孕周及入院时舒张压比较,差异有统计学意义 ...
李元成, 沈伶, 黄菊
doaj  

Undetected cases after implementation of first‐trimester anomaly scan in low‐risk population: insights from the IMITAS study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 1, Page 27-33, January 2026.
ABSTRACT Objective To assess the effectiveness of the first‐trimester anomaly scan (FTAS) performed as part of a centrally steered national screening program in The Netherlands by investigating false‐negative cases with a fetal structural anomaly that was not detected at the FTAS.
K. Bronsgeest   +18 more
wiley   +1 more source

体外受精与胚胎移植术后妊娠的围生情况

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2000
【目的】研究体外受精与胚胎移植(IVF-ET)妊娠的围产情况。【方法】应用病例对照方法, 在控制孕周、妊娠胎数 及分娩方式情况下, 选择在中山医科大学附属第一医院行IVF-ET 妊娠并在本院住院分娩的92 例产妇与同期、同数量自然妊 娠产妇92 例作对照, 研究IVF-ET 妊娠的围生情况。【结果】IVF-ET 妊娠与同样胎数的自然受孕婴儿体重及主要产科并发症 如妊高征、产后出血、胎膜早破、死胎、新生儿窒息、糖耐量异常无明显差别, 但IVF-ET 妊娠的多胎妊娠的并发症较单胎妊娠 高 ...
钟依平, 周灿权, 庄广伦
doaj  

Adverse neonatal outcomes in small‐for‐gestational age twins identified using twin vs singleton growth charts: systematic review and meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 706-715, December 2025.
ABSTRACT Objective To evaluate the use of twin vs singleton growth charts for detecting small‐for‐gestational‐age (SGA) twins at risk of adverse neonatal outcomes. Methods MEDLINE, EMBASE, CINAHL, Cochrane and Scopus databases were searched electronically from inception to May 2024.
S. Sorrenti   +9 more
wiley   +1 more source

血清HCG、P检测对IVF-ET后妊娠结果的预测价值

open access: yesZhongguo shiyan zhenduanxue, 2004
目的 探讨血清HCG、P检测在IVF20ET中作为妊娠结果的预测价值。方法 回顾分析2014203例采用体外授精20胚胎移植20(IVF20ET)周期患者的妊娠结果与ET后第2014天的血清HCG、P水平。结果 临床妊娠组HCG、P水平均显著高于生化妊娠组和未妊娠组20 ...
黄娟华   +3 more
doaj  

Performance of non‐invasive prenatal testing in vanishing‐twin and multiple pregnancies: results of TRIDENT‐2 study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 738-746, December 2025.
ABSTRACT Objective To evaluate the performance of non‐invasive prenatal testing (NIPT) in vanishing‐twin and multiple pregnancies. Methods This study was conducted as part of the TRIDENT‐2 study, in which NIPT was offered as a first‐tier screening test to women with a multiple pregnancy or vanishing‐twin pregnancy between 1 June 2020 and 31 March 2023 ...
J. C. A. van Eekhout   +86 more
wiley   +1 more source

某地区妊娠妇女甲状腺功能检查指标参考范围研究

open access: yesZhongguo shiyan zhenduanxue, 2017
目的建立本地区健康妊娠妇女妊娠各阶段甲状腺功能指标的参考范围,探讨各指标的变化规律及临床意义。方法采用化学发光免疫分析方法测定健康妊娠妇女和非妊娠妇女血清促甲状腺激素(TSH)、游离三碘甲状腺原氨酸(FT3)和游离甲状腺素(FT4),采用双侧限值P2.5-P97.5建立健康非妊娠妇女和妊娠各期特异的血清TSH、FT3和FT4的参考范围。结果健康非妊娠妇女、妊娠早期、中期和晚期的TSH参考范围分别为:1.15-4.58mIU/L,0.44-3.34mIU/L,0.53-4.01mIU/L,0.95-4 ...
窦俊红
doaj  

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