Abstract:
BACKGROUND:First-trimester ultrasound scans were introduced to China for nearly 20 years. The ability of first-trimester ultrasound screening to detect different malformations was variable. A recent systematic review concluded that the use of a standardized anatomic protocol was the most crucial factor to improve the sensitivity of first-trimester ultrasound screening for anomalies. Standardized sectional scans have long been used for routine anatomy screening during the second trimester. However, during the first trimester, most of the previous studies have described the observation of anatomic structures but have not specified clearly the standard sectional views. OBJECTIVE:We aimed to determine the performance of routine first-trimester scans using a standardized anatomic protocol for detecting structural abnormalities in China. STUDY DESIGN:This was a large retrospective study involving 59,063 sequential unselected pregnancies. Scans at 11 to 13+6 weeks were performed in a single center during a 7-year span. All fetuses were examined following a predefined protocol for standardized views. RESULTS:From October 2008 to December 2015, first-trimester scans were performed in 53,349 pregnant women with available outcome. Of these, there were 1578 (3%) pregnancies that presented with at least 1 fetal structural abnormality. The detection rate for first-trimester screening was 43.1% (95% confidence interval, 40.6%-45.5%). Routine first-trimester scans detected 95.6% of abdominal wall defects, 66.3% of nervous system defects, 33.8% of limbs and skeleton malformations, 30.8% of facial abnormalities, 21.2% of urogenital abnormalities, 18.4% of thoracic and lung abnormalities, and 4.1% of gastrointestinal tract abnormalities. During the first trimester, 37.7% of cardiac defects were identified and included 57.9% of major cardiac defects and 2.6% of mild cardiac defects. A robust high detection rate for anencephaly, exencephaly, cephalocele, holoprosencephaly, exomphalos, gastroschisis, Pentalogy of Cantrell, sirenomelia, and body stalk anomaly was achieved during routine first-trimester scans. CONCLUSION:A standardized anatomic protocol is advised when performing routine first-trimester ultrasound screening. It is recommended that screening for severe structural abnormalities should be extended to the first trimester.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Liao Y,Wen H,Ouyang S,Yuan Y,Bi J,Guan Y,Fu Q,Yang X,Guo W,Huang Y,Zeng Q,Qin Y,Xiang H,Li Sdoi
10.1016/j.ajog.2020.10.037subject
Has Abstractpub_date
2020-10-27 00:00:00eissn
0002-9378issn
1097-6868pii
S0002-9378(20)31267-9pub_type
杂志文章abstract::Reanalysis of data on the ovulation method of natural family planning collected by the World Health Organization yields the following conclusions. The method is effective during perfect (correct and consistent) use, with a first-year probability of failure of 3.4%. However, it is extremely unforgiving of imperfect use...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(11)90581-x
更新日期:1991-12-01 00:00:00
abstract::Clostridium sordellii is a common soil and enteric bacterium that is infrequently recovered from the vagina. We describe three women in which C. sordellii caused puerperal infection and a distinctive and lethal toxic shock-like syndrome. Patients were less than 1 week post partum and each had a single, limited focus o...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(89)90768-0
更新日期:1989-10-01 00:00:00
abstract:OBJECTIVE:This study was undertaken to determine whether the neonatal benefit of a single complete course of antenatal corticosteroids diminishes when delivery is remote from administration (> 14 days). STUDY DESIGN:This retrospective 2 center cohort trial included women who received a single complete course of antena...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ajog.2006.12.018
更新日期:2007-05-01 00:00:00
abstract:OBJECTIVE:Although most methods for selecting the sex of offspring by sorting spermatozoa are ineffective at shifting the ratio of Y- to X-containing cells, some commercial sources continue to offer such services. Our objective was to evaluate commercially "sorted" samples with use of dual-color fluorescence in situ hy...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(97)70331-4
更新日期:1997-06-01 00:00:00
abstract:INTRODUCTION:The purpose of this study was to compare transobturator tape (MONARC) with tension-free vaginal tape in patients with borderline low maximum urethral closure pressure. STUDY DESIGN:Historical cohort analysis of 3-month outcomes in 145 subjects (MONARC = 85; tension-free vaginal tape = 60). A cut-off point...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2006.07.011
更新日期:2006-12-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess whether endometrial polyps (EMPs) represent cancer precursors. STUDY DESIGN:Age standardized incidence ratios (SIRs) of histologically verified endometrial cancers (EmCas) were estimated in women with EMPs and in women with uterine leiomyomata, which is a condition tha...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2010.03.036
更新日期:2010-09-01 00:00:00
abstract::In the conservative management of premature rupture of the membranes, most patients have oligohydramnios caused by continuous leakage of amniotic fluid. To avoid unfavorable effects of oligohydramnios on fetal development and well-being, we infused physiologic saline solution continuously into the amniotic cavity at a...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(89)90243-3
更新日期:1989-07-01 00:00:00
abstract:OBJECTIVE:Our purpose was to evaluate the role of fetal ultrasonography in prenatal detection of trisomy 21. STUDY DESIGN:A retrospective study was performed on all cases of trisomy 21 diagnosed prenatally or postnatally between January 1990 and December 1993 in the Jerusalem metropolitan area. Our program of prenatal...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(98)70623-4
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:Gestational diabetes mellitus (GDM) is thought to modify the pattern of placental transcriptome. In a microarray study and a confirmatory quantitative real-time reverse transcription-polymerase chain reaction study, we investigated global placental gene expression in GDM. STUDY DESIGN:Ribonucleic acid was ex...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2008.08.022
更新日期:2009-02-01 00:00:00
abstract::Most pharmacokinetic studies of antibodies in pregnancy have been carried out at the time of abortion or delivery. Whether such data represent pregnancy as such is not known. The present study compares the pharmacokinetic properties of cefuroxime in seven women during pregnancy, at delivery, and after delivery. After ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(16)32526-1
更新日期:1982-04-01 00:00:00
abstract:OBJECTIVE:We assessed intraobserver and interobserver variations in the performance of the amniotic fluid index. STUDY DESIGN:A total of 34 women in the third trimester with intact membranes were examined twice by each of three examiners. The amniotic fluid index was measured once by each of the three examiners in ord...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(93)90386-w
更新日期:1993-04-01 00:00:00
abstract::A prospective, randomized, double-blind evaluation of Loridine-Keflex prophylaxis in a homogeneous group of 32 patients undergoing sequential cervical conization and vaginal hysterectomy is reported. There was no infectious or febrile morbidity in the 18 oatuebts receuvubg abtubuitucs, Morbidity occurred in six of 14 ...
journal_title:American journal of obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1976-05-01 00:00:00
abstract:OBJECTIVE:We conducted, in a randomized, placebo-controlled manner, behavioral testing on mice offspring exposed antenatally to the herbal antidepressant Saint John's wort (Hypericum ). STUDY DESIGN:A daily dose of Saint John's wort (0.75 mg/g of food consumed), equivalent to that in human beings according to body sur...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/mob.2000.108889
更新日期:2000-11-01 00:00:00
abstract:OBJECTIVE:We evaluated whether women with vulvar vestibulitis syndrome (VVS) could be subdivided on the basis of genotyping the polymorphic mannose-binding lectin (MBL) gene. STUDY DESIGN:DNA from 123 women with VVS was tested for a single nucleotide polymorphism at codon 54 of the MBL gene. Blood samples from 86 of t...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2007.05.037
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:The objective of the study was to assess cerclage to prevent recurrent preterm birth in women with short cervix. STUDY DESIGN:Women with prior spontaneous preterm birth less than 34 weeks were screened for short cervix and randomly assigned to cerclage if cervical length was less than 25 mm. RESULTS:Of 1014...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.ajog.2009.08.015
更新日期:2009-10-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(83)91106-7
更新日期:1983-10-01 00:00:00
abstract::Impairment of umbilical cord blood flow has been associated with periodic fetal heart rate changes termed "variable decelerations." These patterns may be observed after amniotomy. A chronic fetal rhesus monkey preparation has been used to investigate this clinical observation. Loss of amniotic fluid produced variable ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(76)90549-4
更新日期:1976-10-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2010.12.036
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:Our purpose was to quantitatively assess the effects of oxytocin on membrane properties in the pregnant human myometrium. STUDY DESIGN:Specimens were obtained from the lower uterine segment during cesarean section at term. Electrical activity was recorded from individual cells by a conventional microelectrod...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(97)70465-4
更新日期:1997-07-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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doi:10.1016/0002-9378(85)90505-8
更新日期:1985-03-15 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2018-09-01 00:00:00
abstract::Knowledge of ureteric anatomy is essential for ureteric injury prevention in laparoscopic gynecologic surgery. Rates of injury increase with limited surgical experience and reduced surgical volume. Currently, there are no low-fidelity or high-fidelity simulation models for teaching and practicing ureteric dissection. ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2017.07.004
更新日期:2017-10-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2014.03.044
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:We tested the hypothesis that preterm delivery in women with twins or polyhydramnios is associated with enhanced expression and activity of cyclooxygenase type 2 in the amnion. STUDY DESIGN:We obtained amniotic tissue samples from women undergoing preterm delivery complicated by either twins or polyhydramnio...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/mob.2001.108076
更新日期:2001-01-01 00:00:00
abstract:OBJECTIVES:Review publications that significantly impacted on the knowledge of bacterial vaginosis. STUDY DESIGN:Assessment of information on the epidemiology, bacteriology, and pathology of bacterial vaginosis. RESULTS:Bacterial vaginosis has a complex microbiology. Further information is required on the epidemiolog...
journal_title:American journal of obstetrics and gynecology
pub_type: 历史文章,杂志文章,评审
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更新日期:1993-08-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(76)90859-0
更新日期:1976-07-15 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ajog.2004.06.035
更新日期:2005-01-01 00:00:00
abstract::Ultrasonographic determination of biparietal diameter/femur length ratios performed at 16 or 17 weeks' gestation in fetuses with trisomy 21 were not statistically different from those of 155 normal fetuses. It appears that this test could not be used for screening for trisomy 21. ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(90)90636-l
更新日期:1990-11-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/s0002-9378(03)00623-9
更新日期:2003-11-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/s0002-9378(12)90917-5
更新日期:1993-01-01 00:00:00