Abstract:
OBJECTIVE:To test the hypothesis that clinically relevant vessels can be visualized and interrogated with Doppler recording during the second half of pregnancy at an output energy below the currently advocated limits without loss of information. DESIGN:Observational cross-sectional study. SETTING:Tertiary fetal medicine center. SAMPLE:Based on a power calculation for equivalence studies, we recruited 65 pregnant women. METHODS:Ultrasound examination was performed at 18, 24 or 36 weeks of gestation. The umbilical artery, middle cerebral artery, ductus venosus, and both uterine arteries were identified using color Doppler, and the blood velocities were measured using pulsed wave Doppler at a thermal index for bone (TIB) of 1.0. This procedure was repeated at TIB values of 0.5 and 0.1. The depth of Doppler recording was noted. MAIN OUTCOME MEASURES:Visualization of the vessels by color Doppler at all power levels and any systematic changes or increased variance of the recorded parameters with decreasing power level. RESULTS:All vessels could be visualized by color Doppler and their flow velocities measured using pulsed wave Doppler in all participants and at all power levels. There were no systematic changes or increased parameter variance when reducing the power level, despite the insonation depth being significantly greater than in early pregnancy. CONCLUSIONS:Reducing the ultrasound power from TIB 1.0 to 0.1 does not alter color Doppler visualization or pulsed wave Doppler measurements in the second half of pregnancy. The lower power level can be recommended as a starting point for clinical examinations throughout pregnancy.
journal_name
Acta Obstet Gynecol Scandjournal_title
Acta obstetricia et gynecologica Scandinavicaauthors
Sande RK,Matre K,Eide GE,Kiserud Tdoi
10.1111/aogs.12114subject
Has Abstractpub_date
2013-07-01 00:00:00pages
790-6issue
7eissn
0001-6349issn
1600-0412journal_volume
92pub_type
临床试验,杂志文章abstract:BACKGROUND:To assess the benefits and harm of dietary and lifestyle interventions during pregnancy to improve maternal and infant outcomes for pregnant women who are overweight or obese. METHODS:Randomized controlled trials comparing any form of dietary or lifestyle intervention during pregnancy for women who are over...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1080/00016340802061111
更新日期:2008-01-01 00:00:00
abstract::29 female immunosuppressed renal transplant recipients were examined gynecologically. In 2 cases the epithelium of the portio was found to be dysplastic, while endometrial carcinoma was present in 1 patient. A review of the literature suggests that immunosuppressed patients are more likely to develop tumors than other...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016347809154202
更新日期:1978-01-01 00:00:00
abstract::A case report, of a patient with peritoneal tuberculosis in whom the provisional diagnosis of ovarian carcinoma--"special category" was made is presented. As most gynecologists see hardly any cases of peritoneal tuberculosis nowadays, this possible diagnosis--which should always be considered--is reviewed. It illustra...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348509158214
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVE:To outline possible associations between urinary incontinence (UI) and serum levels of steroid hormones in middle-aged women. DESIGN AND SETTING:Community-based observational study. SAMPLE:All women aged 50-59 living in the Lund area by December 1995 were invited to a screening procedure. Sixty-four percent...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016340903117986
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:The influence of maternal, obstetric and fetal risk factors on the prevalence of birth asphyxia at term in a Swedish urban population. OBJECTIVE:To investigate risk factors for Apgar score-defined birth asphyxia, birth asphyxia with hypoxic-ischemic encephalopathy and birth asphyxia-related death/disability...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1600-0412.2002.811003.x
更新日期:2002-10-01 00:00:00
abstract:OBJECTIVE:To determine whether lipid alterations in hirsute women are due to excessive androgen, low estrogen or to a combination of these abnormalities. DESIGN:Cross sectional study. PATIENTS:Forty-five hirsute women between 15 and 39 years of age. MAIN OUTCOME MEASURES:FSH, LH, 17beta-estradiol, PRL, testosterone,...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349609047098
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND:Treatment of adnexal torsion remains a clinical dilemma when future fertility is wanted. The purpose of this study was to evaluate the correlation between the pathological changes and the clinical characteristics on patients having torsion of the previously normal uterine adnexa which may help us decide whet...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1600-0412.2001.800111.x
更新日期:2001-01-01 00:00:00
abstract::The purpose of the present study was to establish the occurrence of infertility in Finnish women aged 30, 35 and 40 years. The study is based on an interview by questionnaire carried out on women participating in screening for cancer by Pap smear. The participation rate is generally about 60%. A total of 4,879 women w...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348609157030
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:Legal abortion is a recurrent part of gynecologists' work. The aim of the study was to describe Swedish gynecologists' clinical and emotional experiences when working in abortion care. Further aims were to elucidate their perception of women's motives for having an abortion as well as looking for possible de...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016340500409976
更新日期:2006-01-01 00:00:00
abstract::This study evaluates the interobserver variation of transvaginal ultrasonographic measurements of the size of deep infiltrating endometriosis lesions in the rectosigmoid wall performed by an experienced and a less experienced sonographer. Fifteen outpatient women were seen for a gynecologic examination and 24 women we...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1600-0412.2011.01308.x
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:To determine the influence of hyaluronan and its receptor CD44 in the angiogenesis and invasiveness of intravenous leiomyomatosis (IVL). METHODS:Paraffin-embedded sections from four IVL cases and 10 uterine leiomyoma cases were immunohistochemically stained for CD34, CD44, basic fibroblast growth factor (bF...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.0001-6349.2005.00707.x
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:Our aim was to estimate the prevalence of stress urinary incontinence 4 years after the first delivery and analyze its risk factors. METHODS:A retrospective cohort survey was conducted in a French university hospital. The 669 primiparous women who delivered in our department in 1996 a singleton in a vertex ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.0001-6349.2004.00457.x
更新日期:2004-10-01 00:00:00
abstract:OBJECTIVE:We present a pharmacokinetic study evaluating a single intramuscular dose of 250 μg anti-D immunoglobulin in the third trimester of pregnancy. The aim of the study was to determine the kinetic profile and duration of detectable levels of anti-D. DESIGN:Prospective observational study. SETTING:Antenatal outp...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1600-0412.2012.01377.x
更新日期:2012-05-01 00:00:00
abstract::Two hyperprolactinemic infertile women, one with and one without a pituitary adenoma, who were resistant to bromocriptine treatment, were treated orally with Hachimijiogan, a Chinese herbal medicine. This treatment reduced the serum prolactin level, resulting in a normal ovulatory cycle and pregnancy, without side eff...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348909021028
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Our objective was to investigate the role of hydrogen peroxide in the vasocontraction induced in the human umbilical artery by serotonin. METHODS:Umbilical arteries collected from healthy women at term were cut helically and suspended in an organ bath to record isometric mechanical activity. In Study I, we ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349609054704
更新日期:1996-10-01 00:00:00
abstract:OBJECTIVES:This study aims to summarize evidence on the relation between neighborhood deprivation and the risks for preterm birth, small-for-gestational age, and stillbirth. DESIGN:The design was a systematic review and meta-analysis. MAIN OUTCOME MEASURES:The main outcome measures included studies that directly comp...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,meta分析,评审
doi:10.1111/aogs.12430
更新日期:2014-08-01 00:00:00
abstract::One hundred and forty-one women were planned to be sterilized by the Falope-ring technique after vaginal term delivery. Two pregnancies (1.55%) occurred during an average observation period of 43.2 months. Tearing of the mesosalpinx with bleeding requiring laparotomy occurred in 2 cases, and was the major operative co...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348609158361
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:To determine whether plasma levels of fibrinogen and the placental tissue distributions of fibrinogen and histidine-rich glycoprotein (HRG) differ between early- and late-onset preeclampsia. DESIGN:The study comprised 18 women with early-onset (gestational weeks 24-32) and 19 women with late-onset (gestation...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016340903295618
更新日期:2010-01-01 00:00:00
abstract:OBJECTIVE:To investigate the metabolic phenotype and pregnancy outcomes of gestational impaired glucose tolerance (IGT) defined by isolated hyperglycemia during an oral glucose tolerance test (OGTT). DESIGN:Retrospective cohort study. SETTING:University referral hospital. POPULATION:A total of 4,789 women were scree...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349.2010.487091
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND:There is a lack of established treatment for Chronic pelvic pain (CPP), defined as acyclic pain of at least six months duration. We decided to study the pain-alleviating effects of stretching on defined structures in women with CPP, and the treatment's impact on quality of life variables. DESIGN OF STUDY:An...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1080/00016340500495017
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:To assess the risk of malignant cells dissemination in patients with endometrial cancer undergoing saline infusion sonohysterography (SIS). METHODS:Fourteen consecutive patients (mean age: 58.1 years, range: 41-74 years) diagnosed as having a clinical stage I endometrial carcinoma and scheduled for surgical...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND:Most studies of cervical conization have considered the frequency of complications and the outcome of follow-up. The determinants of cone margin positivity have been inadequately described. In a series of CIN patients undergoing conization-equivalent electrosurgical procedure, we evaluated the factors associ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract:INTRODUCTION:Abnormally invasive placenta is a major cause of maternal morbidity and mortality. The aim of this study was to assess the effectiveness of a standardized operative approach performed by gynecological oncologists in the surgical management of abnormally invasive placenta. MATERIALS AND METHODS:We performe...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.12768
更新日期:2015-12-01 00:00:00
abstract::The diagnostic significance of radioisotopic angiography in the clinical management of trophoblastic neoplasia was studied by analyzing the patterns of radioisotope (RI)-dynamic curve obtained by processing sequential image with a computer, and an attempt was made to express numerically the size of tumors present in v...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016347509156762
更新日期:1975-01-01 00:00:00
abstract::Complications and satisfaction with anterior and/or posterior prolapse repair using a transobturator polypropylene mesh (Prolift) in a single center prospective cohort was assessed. Among 30 women six mesh erosions were noted, five (17%) after anterior and one (3%) with combined anterior and posterior procedures. The ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016340802348294
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Description of incidence, clinical signs, symptoms, and consequences of eclampsia in Scandinavia, and assessment of substandard care and potential preventability. METHODS:A descriptive cohort study including all women giving birth in a 2-year period (mid-1998-mid-2000) in Scandinavia. Notifications of eclam...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016340600607149
更新日期:2006-01-01 00:00:00
abstract::Oxytocin concentrations increased during pregnancy and during medication with low-dose oral contraceptives (o.c.). Postprandial somatostatin concentrations were lower during medication with o.c. Insulin concentrations were elevated during pregnancy with the same tendency during medication with o.c. Gastrin levels were...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349109007873
更新日期:1991-01-01 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:INTRODUCTION:The influence of maternal body mass index (BMI) on respiratory quotient during pregnancy is not clear. We aim to evaluate longitudinal changes in energy expenditure, respiratory quotient, and substrate oxidation rates in normal and overweight women with uncomplicated pregnancies. We hypothesized that the t...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13058
更新日期:2017-02-01 00:00:00
abstract::Ninety-one pregnant patients in mid-trimester were examined for suspected cervical incompetence using ultrasound. This diagnosis means that detached membranes at the internal os are bulging into a dilated cervical canal. In 13 cases cervical dilatation was found. These patients were operated on using McDonald's purse-...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348309155751
更新日期:1983-01-01 00:00:00