Results 31 to 40 of about 2,999 (125)

Impact of fetal and maternal characteristics on the accuracy and precision of sonographic fetal weight estimation: population‐based study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 747-753, December 2025.
ABSTRACT Objective Ultrasound‐based fetal growth assessment is an essential part of clinical decision‐making in modern obstetric care. This study aimed to evaluate the impact of maternal and fetal characteristics on the accuracy and precision of sonographic fetal weight estimation.
M. Granfors   +4 more
wiley   +1 more source

冷冻胚胎解冻移植264个周期临床分析

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2007
【目的】探讨影响冷冻胚胎解冻移植妊娠率的因素。【方法】收集2001年11月到2006年1月264位病人在本中心进行冷冻胚胎解冻移植264个周期的资料,进行回顾分析。【结果】264个周期中有67个周期妊娠,周期妊娠率25.38%。妊娠组平均每次移植胚胎个数多于非妊娠组(2.84±0.57 vs 2.45±0.82 ...
魏春霞   +7 more
doaj  

Effect of aspirin on maternal hemodynamics in Chinese women at high risk for preterm pre‐eclampsia: longitudinal study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 5, Page 621-630, November 2025.
ABSTRACT Objectives To compare the maternal hemodynamics of Chinese women at low and at high risk for preterm pre‐eclampsia (PE) and assess the differences in hemodynamic parameters between high‐risk women with or without prophylactic aspirin. Methods This was a prospective longitudinal case–control study of 857 Chinese women with a singleton pregnancy
X. Wang   +11 more
wiley   +1 more source

应用超声探测胎儿股骨长度估计妊娠周数

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1985
了解胎儿在子宫内的生长发育是否符合妊娠周数,对妊娠期的正确处理具有重要的意义。估计妊娠周数的方法有多种,利用超声探测是一种较为准确的方法。妊娠13周前超声测量胎儿顶臀长度,和妊娠26周前测量胎头双顶径均比较准确。但亦有认为在27周后超声测量胎头双顶径的准确度则明显下降。最近,一些学者提出妊娠中期的前半段超声测量胎儿股骨长度可以更准确地推测妊娠周数,并认为在妊娠中期后股骨长度的探测仍然精确。
招杰容
doaj  

Role of aspirin therapy in modulating uterine artery resistance and placental growth between first and second trimesters of pregnancy

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 5, Page 641-648, November 2025.
ABSTRACT Objective To evaluate the impact of low‐dose aspirin (LDA) on placental size and uterine artery pulsatility index (UtA‐PI) by analyzing longitudinal changes between the first and second trimesters in pregnancies at high risk for early‐onset pre‐eclampsia (PE).
C. Trilla   +7 more
wiley   +1 more source

孕酮和人绒毛膜促性腺激素测定在早期妊娠结局预测中的作用

open access: yesZhongguo shiyan zhenduanxue, 2016
目的评估孕酮(P)和人绒毛膜促性腺激素(β-HCG)在早期妊娠结局预测中的作用。方法经我院伦理委员会批准,于2015年7月-12月期间,就诊我院门诊并随机选取132例有停经史患者作为本研究病例,99例正常妊娠组和33例异常妊娠组。采取静脉血,化学免疫发光法检测P和β-HCG。采用t检验和χ2检验分析数据。结果正常妊娠组和异常妊娠组P和β-HCG变化趋势比较,差异有统计学意义 ...
孙兵
doaj  

Comparison of open fetal, fetoscopic and postnatal surgical repair for open spina bifida: decision analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 4, Page 433-442, October 2025.
ABSTRACT Objective Currently, there are several surgical approaches to manage fetal open spina bifida (OSB), namely postnatal surgical repair, open fetal surgery and its minimally invasive alternative, fetoscopic repair. Our objective was to determine the optimal surgical approach for OSB, weighing the benefits and risks to the fetus and the pregnant ...
Y. Kunpalin   +6 more
wiley   +1 more source

超声测量晚期子宫瘢痕再妊娠患者子宫肌层厚度对妊娠结局的影响

open access: yesZhongguo shiyan zhenduanxue, 2019
目的分析超声测量晚期子宫瘢痕再妊娠患者子宫肌层厚度对妊娠结局的影响,为制定子宫瘢痕再妊娠患者的妊娠分娩方案提供参考。方法选择2014年1月-2016年1月我院收治的子宫瘢痕再妊娠孕妇60例为观察组,同期收治的非子宫瘢痕再妊娠孕妇60例为对照组,两组孕妇均于孕12周前入组。采用超声经阴道测量所有受试者孕12周、28-37周、孕38-40周的子宫肌层厚度。比较不同时间两组受试者子宫肌层厚度变化的差异。跟踪两组受试者的妊娠结局。将观察组中发生自然流产、早产、医学性人工流产、低出生体重、出生缺陷 ...
魏振玲, 万爱红, 李静
doaj  

早期妊娠血P、E2、HCG检测临床参考值及意义

open access: yesZhongguo shiyan zhenduanxue, 2012
孕酮(P)、雌二醇(E2)、绒毛膜促性腺激素(HCG)是维持早期妊娠的重要激素,早孕期是异常妊娠发生率最多的一个孕季,无论是正常妊娠、宫内异常妊娠或异位妊娠,必然伴随有P、E2、HCG妊娠激素的变化,本研究旨在通过早孕期该血三项生化激素监测,探索早孕期正常妊娠和先兆流产三项激素变化参考值,实践其可循规律和可行性。
杨燕飞, 韦塑峰, 蒋健穗
doaj  

妊娠妇女高危型人乳头瘤病毒感染特点及基因分型

open access: yesZhongguo shiyan zhenduanxue, 2023
目的 分析妊娠妇女高危型人乳头瘤病毒感染特点及基因分型情况,指导妊娠期宫颈癌的防治。方法 回顾性分析2019年1月至12月北京市通州区中西医结合医院妊娠妇女的病例资料,所有病例均采用荧光定量PCR技术检测高危型HPV及基因分型。对患者临床资料及高危型HPV感染情况进行卡方检验进行统计学分析。结果 251例患者,HPV感染39例,感染率15.54%,以52型为主。18~25岁、26~35岁、36~45岁妊娠妇女HPV感染率分别为6.0%、19.05%、18.75%。妊娠早期 ...
樊荣, 王雪梅
doaj  

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