Results 21 to 30 of about 810,743 (159)

假性妊娠的心理特点初探 [PDF]

open access: yes, 1984
一假性妊娠,又称想象怀孕,虽然在妇产科临床上并不多见,但作为心身关系的典型现象,却已久受关注。公元前三百年,古希腊医学家希波克拉底(Hippocrates)就曾报道过十二个病例。1937年,G.D.Biren和M.P.Klinger合写的研究假性妊娠的专著出版,报道了444个病例。年龄从7岁到79岁。1960年以来,英文文献中,报道假性妊娠平均一年一例。病人有已婚者,也有未婚者。有的病人恢复很快,继而得子 ...
幸代高, 张永纯, 张景莹, 过平
core  

Ultrasound features in early pregnancy for predicting abnormal karyotype in first‐trimester miscarriage

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 376-384, March 2026.
ABSTRACT Objective To investigate whether combining abnormal morphological features observed on ultrasound in live pregnancies that ended in a first‐trimester miscarriage can predict an abnormal karyotype. Methods This retrospective observational cohort study was conducted at the early‐pregnancy assessment unit at University College London Hospital ...
T. Setty   +5 more
wiley   +1 more source

Fetoscopic laser ablation vs standard management for Type‐II and Type‐III vasa previa

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 320-328, March 2026.
ABSTRACT Objective The standard management (SM) for vasa previa (VP) includes antepartum inpatient admission at 28–32 weeks' gestation followed by Cesarean delivery at 34–37 weeks. Case reports and case series have reported on fetoscopic laser ablation (FLA) as an alternative management approach for Types‐II and ‐III VP.
S. Backley   +11 more
wiley   +1 more source

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

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

Reproductive outcome after frozen embryo transfer with hormone replacement therapy according to luteal‐phase support protocol: systematic review and network meta‐analysis of randomized controlled trials

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 4, Page 422-432, October 2025.
ABSTRACT Objective To compare reproductive outcome between luteal‐phase support (LPS) protocols for frozen embryo transfer (FET) cycles with hormone replacement therapy (HRT). Methods A search was conducted in MEDLINE, Scopus, LILACS, EMBASE, Scielo.br, PROSPERO, CINAHL, PsycINFO, AMED, ClinicalTrials.gov, ICTRP, the Cochrane Library and conference ...
A. Etrusco   +11 more
wiley   +1 more source

Benefits and complications of fetal and postnatal surgery for open spina bifida: systematic review and proportional meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 2, Page 135-146, August 2025.
ABSTRACT Objective To derive pooled estimates of maternal, fetal and pediatric outcomes up to the age of 30 months in patients undergoing pre‐ or postnatal surgery for open spina bifida (OSB). Methods A systematic search was conducted in MEDLINE, PubMed (non‐MEDLINE records), Embase, Web of Science, ClinicalTrials.gov, Cochrane Central Register of ...
Y. Kunpalin   +10 more
wiley   +1 more source

Outcome of monochorionic diamniotic twin pregnancy with selective fetal growth restriction and continuous or intermittent absent or reversed end‐diastolic umbilical artery flow: international multicenter cohort study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 1, Page 41-50, July 2025.
ABSTRACT Objectives Monochorionic diamniotic (MCDA) twins with selective fetal growth restriction (sFGR) and either continuous (cAREDF) or intermittent (iAREDF) absent or reversed end‐diastolic flow in the umbilical artery face significant fetal and neonatal risks.
A. T. R. Noll   +19 more
wiley   +1 more source

征税成本为何居高不下 [PDF]

open access: yes, 2006
通过对比中西方国家的征税成本发现,我国征税成本居高不下而且有越演越烈的趋势,征税成本高的问题已经影响到财政收入中可用财力的增长幅度。鉴于此 ...
鞠婧
core  

Assessment of risk for pre‐eclampsia at mid‐gestation to define subsequent care

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 6, Page 694-702, June 2025.
ABSTRACT Objective To stratify pregnancy care based on the estimated risk of pre‐eclampsia (PE) from screening at 19–24 weeks' gestation by combinations of maternal risk factors, estimated fetal weight (EFW), mean arterial pressure (MAP) and uterine artery pulsatility index (UtA‐PI).
S. Adjahou   +5 more
wiley   +1 more source

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