Abstract:
INTRODUCTION:In Stockholm County, new guidelines for predicting the day of delivery were introduced in 2010. Recent clinical use has indicated that the predictive quality might be suboptimal. This study compares the accuracy of three equations applied during the first (crown-rump length or bi-parietal diameter) and second trimesters (bi-parietal diameter or bi-parietal diameter combined with femur length). MATERIAL AND METHODS:The accuracy of estimated delivery date was compared in 14 239 ultrasound exams using median deviations from actual birth date, proportion of postterms, births within ±seven days of estimated delivery date, accuracy variations depending on fetal size, alternative fetal measurements obtained on the same occasion, and menstrual age. RESULTS:The bi-parietal diameter and crown-rump length formulae overestimated pregnancy length by two and three days respectively, causing 7-8% of pregnancies to be labelled postterm. A combined bi-parietal diameter+femur length formula overestimated by one day, with 5.1% postterms. No significant difference was found in the proportion of births within ±seven days. Second trimester estimated delivery date assessment had larger median variations than did first trimester assessment and suffered from shifting deviations across fetal size. The comparison of different biometry formulae in the same individual demonstrated one day extra deviation for bi-parietal diameter and three days extra deviation for crown-rump length compared with the combined bi-parietal diameter+femur length formula. CONCLUSIONS:The algorithms and dating occasions tested seem inappropriate for the present 280-day term definition. Alternative formulae ought to be sought, and the assumed duration of pregnancy reconsidered; 283 days corresponds to the observed pregnancy length calculated from last menstrual period, and would better fit the observed results for first trimester ultrasound scans.
journal_name
Acta Obstet Gynecol Scandjournal_title
Acta obstetricia et gynecologica Scandinavicaauthors
Wessel H,Nyberg Tdoi
10.1111/aogs.13061subject
Has Abstractpub_date
2017-02-01 00:00:00pages
223-232issue
2eissn
0001-6349issn
1600-0412journal_volume
96pub_type
杂志文章abstract:BACKGROUND:Oral contraceptives (OC) are the most popular contraception in Denmark. Overall figures on use are well described, but more detailed use patterns according to type and age need to be updated. OBJECTIVES:To assess trends in the use of OC including progestogen-only pills among Danish women in 1998-2010 and to...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1600-0412.2012.01416.x
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:To evaluate which intrapartum factors influence the method of delivery in a group of twin pregnancies eligible for vaginal delivery. STUDY DESIGN:Over a 10-year period, 967 consecutive twin pregnancies at gestational age >/=32 weeks with twin A presenting as a vertex and eligible for vaginal delivery were re...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1600-0412.2003.00098.x
更新日期:2003-03-01 00:00:00
abstract:INTRODUCTION:Fetal growth restriction (FGR) is associated with poor perinatal outcomes. Screening and prevention tools for FGR, such as uterine artery Doppler imaging and aspirin, underperform in high-risk groups, compared with general antenatal populations. There is a paucity of sensitive screening tests for the early...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.12823
更新日期:2016-03-01 00:00:00
abstract:INTRODUCTION:Our aim was to investigate the rate of vascular dementia and dementia in women with previous hypertensive disorders in pregnancy, since white matter lesions of the brain and cardiovascular disease are linked both to dementia and hypertensive disorders in pregnancy. MATERIAL AND METHODS:Prospective populat...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13096
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVE:To study the predictive value of the history of genital pain, psychiatric complaints and menstrual symptoms on a woman's sexual life before and after subtotal hysterectomy. MATERIAL AND METHOD:One hundred and four premenopausal women were interviewed one month before and one year after surgery. A latent vari...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 临床试验,杂志文章
doi:10.3109/00016349409006276
更新日期:1994-08-01 00:00:00
abstract::The anti-estrogenic effect of clomiphene citrate (CC) and tamoxifen (TMX) on cervical mucus was evaluated in a prospective crossover study. Ten women underwent randomized alternate cyclical treatment with either 100 mg CC, 40 mg TMX daily, or with placebo. The effect of CC, TMX and placebo on serum estradiol (E2), cer...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1988-01-01 00:00:00
abstract::Serum angiotensin-converting enzyme (SACE) levels were determined in normotensive pregnant subjects and patients with pre-eclampsia in the third trimester of pregnancy and 5 days, 3 and 6 months after parturition, and also in the first and second trimester in the normotensive group. SACE levels were reduced during pre...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348309156235
更新日期:1983-01-01 00:00:00
abstract:OBJECTIVE:Alteration in the vaginal flora has been associated with adverse pregnancy outcomes. The objective of this study was to examine the impact of changes in individual microflora on genital immunity among low-risk pregnant women in early pregnancy. DESIGN:Cross-sectional study. SETTING:Large, tertiary care, aca...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1600-0412.2011.01082.x
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:To study to what extent the fetal scalp blood lactate concentration during labor correlates with fetal scalp pH and base deficit, and metabolic acidosis at birth, and to suggest lactate cut-off values to serve as indicators for either reassurance or immediate intervention. DESIGN:A retrospective observationa...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1600-0412.2011.01237.x
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVE:Sonographic training in obstetrics differs broadly in Germany, although there are clearly defined quality-oriented requirements. In order to improve professional education, a training concept was devised utilizing an ultrasound simulator system. DESIGN:Between October 2004 and May 2006, 100 obstetric ultraso...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016340903280941
更新日期:2010-03-01 00:00:00
abstract::The aim of this study is to determine the influence of withdrawal of reimbursement on the uptake of the first-trimester combined test. Until January 2007 the combined test was offered to all pregnant women in a designated geographical area as a pilot study before the introduction of the national screening program in t...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.12518
更新日期:2015-02-01 00:00:00
abstract::The effect of estrogen therapy on climacteric symptoms and tissue changes was studied in 100 castrated women. 1/2 of the women received 2 mg/day estriol succinate and 1/2 received 2 mg/day estradiol valerate for 6 months beginning 1 month postcastration. Measurements were made of the thickness of the epidermis befor...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016347409162169
更新日期:1974-01-01 00:00:00
abstract::A case of benign Müllerian tumor of the ovary in a 53-year old woman is reported. The stromal element consisted of rhabdomyoblasts which clearly indicate that this tumor belongs to the Müllerian family. She remains free of disease 12 months following an abdominal hysterectomy and bilateral salpingo-oophorectomy. ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349209021101
更新日期:1992-08-01 00:00:00
abstract:INTRODUCTION:Noninvasive fetal heart rate monitoring using transabdominal fetal electrocardiographic detection is now commercially available and has been demonstrated to be an effective alternative to traditional Doppler ultrasonographic techniques. Our objective in this study was to compare the results of computerized...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13760
更新日期:2020-03-01 00:00:00
abstract:INTRODUCTION:This study aims to compare the use of qualitative fetal fibronectin, quantitative fetal fibronectin, and placental α-microglobulin-1 in women with symptoms of preterm labor, to evaluate which vaginal biomarker performs the best in clinical practice. MATERIAL AND METHODS:This prospective observational stud...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13729
更新日期:2020-02-01 00:00:00
abstract:BACKGROUND:Increasing birth rates have raised questions for policy makers and hospital management about the economic costs of childbirth. OBJECTIVE:The purpose of this article is to identify and review all existing scientific studies in relation to the economic costs of alternative modes of childbirth delivery and to ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1111/aogs.12117
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:To provide insight into the differential effect of immigration on cesarean section (CS) rates, using the Robson classification. DESIGN:A population-based study using birth certificates from the birth registry of 2009. SETTING:All births in two of the three Belgian regions excluding Flanders. POPULATION:37 ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.12003
更新日期:2013-02-01 00:00:00
abstract::A 54-year-old postmenopausal woman is described who quite suddenly experienced intense tenderness and tension in both breasts lasting for about 3 weeks. Subsequently she had a uterine bleeding. Excessively increased levels of estradiol (peak value 2325 pmol/l) were found during the period of mastodynia. Seven months p...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348509156738
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVE:To investigate risks of torsion and malignancy by adnexal mass size during pregnancy. DESIGN:Retrospective review of medical records. SETTING:General university hospital and healthcare center. POPULATION:Four hundred and seventy women who underwent surgery for adnexal masses during pregnancy between 2002 a...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1600-0412.2011.01070.x
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to assess the use and efficacy of delivery by vacuum extraction or ventouse in routine clinical practice and to assess some aspects of the procedure that may reflect the quality of training in this technique. MATERIALS AND METHODS:Women's demographic profiles and delivery deta...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.0001-6349.2004.0399.x
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVE:To study stillbirths and neonatal mortality in the postterm period. DESIGN:Register study of information obtained from the Swedish Medical Birth Registry (MBR), National Board of Health and Welfare, Stockholm. METHODS:Singleton pregnancies with deliveries occurring between 1982 and 1991 were selected involv...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.3109/00016349709024606
更新日期:1997-08-01 00:00:00
abstract:INTRODUCTION:Isolated single umbilical artery (iSUA) refers to single umbilical artery cords with no other fetal malformations. The association of iSUA to adverse outcome of pregnancy has not been consistently reported, and whether iSUA carries increased risk of third stage of labor complications has not been studied. ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13747
更新日期:2020-03-01 00:00:00
abstract::The degree of hair growth of 64 hirsute women was clinically graded. The patients were divided into two groups with respect to the ratio between the serum luteinizing hormone (LH) and the follicle-stimulating hormone (FSH). The two groups did not differ in terms of the grade of hirsutism, serum testosterone (T), calcu...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348509158203
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVE:To identify women having unsafe abortions and elucidate whether an acceptable follow-up rate among these women can be retrieved. STUDY POPULATION:One thousand three hundred and fifty-seven women attended Temeke Municipal Hospital, Dar es Salaam with an abortion-related diagnosis. METHODS:Women having unsafe...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.0001-6349.2004.0529.x
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND:To investigate natural menstrual bleeding patterns in pre- and perimenopausal women, a prospective observational population study was carried out. METHODS:A total of 1616 (80.8%) of a population-based sample of 2000 Danish women aged 45-54 years answered an initial questionnaire. Of 1059 women with natural ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.0001-6349.2004.00401.x
更新日期:2004-02-01 00:00:00
abstract:BACKGROUND:To study the effect of single-dose prophylactic Augmentin on patients undergoing cesarean section. METHODS AND MATERIAL:Three hundred and twenty women undergoing cesarean section were randomized into two groups in a prospective, double-blind, placebo-controlled study. One hundred and sixty women were alloca...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016349709024581
更新日期:1997-07-01 00:00:00
abstract::The assessment and treatment of urinary incontinence and related urogenital symptoms using an algorithm model was evaluated in 364 elderly women complaining of urinary incontinence. The women (age 72.1 +/- 1.5 years, range 65-84 years) were assessed by a 48-hour pad test, a cough provocation test, micturition lists an...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349109006196
更新日期:1991-01-01 00:00:00
abstract::The concentrations of FSH, LH, 17-beta-estradiol (E2), estrone (E1) and progesterone (P) were measured in peripheral and ovarian vein sera obtained at preoperative pelvic angiography from 5 postmenopausal women with malignant ovarian tumors. In 5 others the concentrations of E2, P and testosterone (T) were also measur...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348609155172
更新日期:1986-01-01 00:00:00
abstract::The fetal heart rate response to a controlled sound stimulus was recorded in 36 pregnant women before and after a maternal peroral dose of either 80 mg propranolol, or placebo. The sound stimulation was repeated 60 minutes, 120 minutes and 180 minutes after the drug administration. The fetal heart rate response to sou...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 临床试验,杂志文章
doi:10.3109/00016348409155496
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND:During the last years, the incidence of obstetric anal sphincter rupture (OASR) has increased markedly in Sweden, and significantly less frequently in Italy. Our objective was to explore if different delivery management may explain the variation in OASR incidences. METHODS:In a retrospective study, data fro...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,多中心研究
doi:10.1080/00016340701832661
更新日期:2008-01-01 00:00:00