Abstract:
:The gestational age and the serum human chorionic gonadotropin (hCG) at which an intrauterine pregnancy can be detected using transvaginal ultrasonography (TVU) is not known. In this study, ten pregnant women were serially scanned with TVU from the time of initial positive pregnancy test, to determine when an intrauterine sac greater than 2 mm, fetal pole greater than 2 mm, and fetal heart motion could be detected. A gestational sac was seen 34.8 +/- 2.2 days from the last menstrual period (LMP), at which time the hCG was 1398 +/- 155 mIU/ml of the International Reference Preparations (IRP) or 914 +/- 106 mIU/ml of the Second International Standard (second IS). A fetal pole was seen 40.3 +/- 3.4 days from the LMP when the hCG was 5113 +/- 298 mIU/ml of the IRP or 3783 +/- 683 mIU/ml of the second IS. Fetal heart motion was detected 46.9 +/- 6.0 days from the LMP when the hCG was 17,208 +/- 3772 mIU/ml of the IRP or 13178 +/- 2898 mIU/ml of the second IS. From these results, it can be concluded that transvaginal ultrasonography can detect an intrauterine gestation earlier than what has been previously reported with transabdominal ultrasonography.
journal_name
Fertil Steriljournal_title
Fertility and sterilityauthors
Fossum GT,Davajan V,Kletzky OAdoi
10.1016/s0015-0282(16)59884-7subject
Has Abstractpub_date
1988-05-01 00:00:00pages
788-91issue
5eissn
0015-0282issn
1556-5653pii
S0015-0282(16)59884-7journal_volume
49pub_type
杂志文章abstract:OBJECTIVE:To investigate the association between several factors such as demographics, personal habits, reproductive factors, menstrual characteristics, contraception, and clinical profile and the probability of having endometriosis. SETTING:Ten clinical institutions in the Montreal area. PATIENT(S):A total of 2777 s...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2003.10.038
更新日期:2004-06-01 00:00:00
abstract::Multiple factors influence the outcome of in vitro fertilization and embryo transfer (IVF-ET). This prospective study was designed to assess their relative importance, in order to improve prognostic ability and treatment success. Prior to IVF-ET, couples were divided into "good" (GP) and "poor" (PP) prognosis groups a...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)60676-3
更新日期:1989-05-01 00:00:00
abstract:OBJECTIVE:To evaluate whether the use of theophylline improves sperm motility and treatment outcome in frozen-thawed testicular sperm extraction (TESE). DESIGN:Artificial sperm activation was offered to azoospermic patients between January and October 2010 in two different centers (identical lab conditions). SETTING:...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2011.08.041
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:To evaluate the influence of the opioid system on the hypothalamic-pituitary-adrenal axis in women with polycystic ovary syndrome (PCOS). DESIGN:Controlled clinical study. SETTING:Academic research environment. PATIENT(S):Eight lean and 12 obese women with PCOS, and seven lean and 5 obese control subjects....
journal_title:Fertility and sterility
pub_type: 临床试验,杂志文章
doi:10.1016/s0015-0282(99)00602-0
更新日期:2000-04-01 00:00:00
abstract:OBJECTIVE:To investigate the effects of P, medroxyprogesterone acetate (MPA), and dydrogesterone (DYD) and its metabolite, 20-alpha-dihydrodydrogesterone (DHD) on endothelial synthesis of nitric oxide (NO) and characterize the signaling events recruited by these compounds. The Women's Health Initiative trial reports an...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2006.05.018
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVE:To identify biomarkers associated with reproductive outcome using proton nuclear magnetic resonance ((1)H NMR) metabolomic profiling of embryo culture media. DESIGN:Retrospective study. SETTING:An academic assisted reproductive technology (ART) program; a university research center. PATIENT(S):Women underg...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2008.07.1739
更新日期:2008-12-01 00:00:00
abstract::Pain associated with endometriosis may involve many mechanisms and requires careful evaluation to confirm the diagnosis and exclude other potential causes. Both medical and surgical treatments for pain related to endometriosis are effective, and choice of treatment must be individualized. This document replaces the do...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2014.02.012
更新日期:2014-04-01 00:00:00
abstract:OBJECTIVE:To examine the impact of a recent surgery on development of endometriosis-related adhesions in a chimeric model and to determine the therapeutic efficacy of pioglitazone (PIO). DESIGN:Human endometrial biopsies were maintained in E(2) with or without PIO for 24 h before intraperitoneal injection into immunoc...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2010.09.017
更新日期:2011-03-15 00:00:00
abstract::Luteal phase defect (LPD) accounts for a significant proportion of reproductive disorders, however its etiology is still debated. A prospective study was performed on 37 ovulatory women to determine whether LPD can occur in cycles characterized by completely normal folliculogenesis. Criteria for normal folliculogenesi...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)53152-5
更新日期:1989-12-01 00:00:00
abstract:OBJECTIVE:To report the birth of a healthy female infant from a father with nonmosaic Klinefelter syndrome (KS) and document the experience of men with KS undergoing assisted conception. DESIGN:Retrospective. SETTING:Private IVF center. PATIENT(S):Twelve couples with male factor infertility due to Klinefelter syndro...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(03)01157-9
更新日期:2003-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the effect of obesity on the outcome of testicular sperm extraction (TESE) and assisted reproductive technology. DESIGN:Clinical retrospective study. SETTING:Center for reproductive medicine at a tertiary-care university hospital. PATIENT(S):Nine hundred seventy patients with nonobstructive azo...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2012.10.025
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVE:To define the hypersensitive status of PRL secretion in normoprolactinemic infertile women and determine the incidence of occult hyperprolactinemia among them. DESIGN:The potential for PRL secretion was examined in 463 women. SETTING:Outpatient clinic in a university hospital. PATIENTS:Three hundred sixty-...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)56154-8
更新日期:1993-09-01 00:00:00
abstract:OBJECTIVE:To assess the occult pregnancy rate after "negative" first post-embryo transfer (ET) serum β-hCG results. DESIGN:Two-part retrospective cohort study and nested case series. SETTING:University-based fertility center. PATIENT(S):A total of 1,571 negative first post-ET serum β-hCG results were included in the...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2015.11.049
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVE:To assess the prevalence of infectious complications and the protective effect of prophylactic antibiotic treatment after diagnostic office hysteroscopy in asymptomatic, infertile patients with normal results from transvaginal sonography. DESIGN:Recording of infectious complications after routine hysteroscop...
journal_title:Fertility and sterility
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.fertnstert.2010.08.031
更新日期:2011-02-01 00:00:00
abstract::Freshly ejaculated semen specimens from 20 normal fertile, 11 subfertile, and 20 vasectomized men whose semen analyses had reached complete azoospermia were compared. The mean levels of seminal acid phosphatase were significantly higher in the vasectomized men. The mean values of sialic acid in normal and postvasect...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)38947-6
更新日期:1972-05-01 00:00:00
abstract::Peritoneal fluid and serum were collected from 78 patients at the time of laparoscopy. Twenty-two were fertile controls (CTL), and 56 were infertility patients, who were subdivided into three main groups: endometriosis (EMS), pelvic adhesions (ADH), and ovarian dysfunction (OvDF). Based on control group data, biochemi...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)48020-9
更新日期:1984-08-01 00:00:00
abstract:OBJECTIVE:To identify early ultrasound markers in pregnant patients that predict a favorable pregnancy outcome. DESIGN:Retrospective case-control study. SETTING:Infertility patients in fertility clinic. PATIENT(S):1051 women with early pregnancies conceived after fertility treatment. INTERVENTION(S):None. MAIN OUT...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2011.08.009
更新日期:2011-11-01 00:00:00
abstract::The promoter of P receptor isoform B (PR-B) has recently been shown to be hypermethylated in endometriotic tissues, but one question remains as what causes the aberrant methylation. We show that sustained stimulation of an epithelial-like endometriotic cell line with tumor necrosis factor alpha stimulation for 30 days...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2007.06.008
更新日期:2008-07-01 00:00:00
abstract::The distribution of genotype frequencies, allele frequencies, and haplotype frequencies of variable number of tandem repeats (VNTR) in interleukin (IL) 1RN and IL-1beta (-511C > T, exon-5C.>T) polymorphism demonstrated a positive association with the occurrence of polycystic ovary syndrome (PCOS). The carriage of alle...
journal_title:Fertility and sterility
pub_type: 信件
doi:10.1016/j.fertnstert.2009.09.042
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVE:To quantify nerve fibers and mast cells in human ovaries at different functional stages. DESIGN:Retrospective study. SETTING:Research laboratory of the university. SPECIMEN(S): 8 human ovaries in the follicular (cyclic) phase, 7 polycystic ovaries, and postmenopausal ovaries with (n=5) or without (n=7) hype...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(01)01805-2
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVE:To report preferences of recipient couples for genetic testing of their oocyte donors. DESIGN:Observational report of results from a genetic testing-options form implemented as part of routine care. SETTING:Private practice. PATIENT(S):Recipients and oocyte donors. INTERVENTION(S):Recipient couples comple...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2007.10.069
更新日期:2008-12-01 00:00:00
abstract::Comparative studies have been carried out on the behavior of human and bovine spermatozoa toward homologous cervical mucus in vitro. In both cases the degree of sperm penetration and the pattern of sperm motility were influenced in a characteristic fashion by prior manipulation of the mucus: the most rapid and extensi...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:
更新日期:1980-06-01 00:00:00
abstract::All in vitro fertilization (IVF) programs and clinics should have a plan to protect fresh and cryopreserved human tissue (embryos, oocytes, sperm) and to provide for continuation of patient care in the event of an emergency or natural disaster. ...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2008.08.063
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVE:To determine whether antisperm autoantibody production after prepubertal vas injury is influenced by immediate repair of the vas compared to delay of the reanastomosis until sexual maturity. DESIGN:Animal study comparing early repair, late repair, and sham-operated groups. SETTING:Research laboratory in a m...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(99)00501-4
更新日期:2000-02-01 00:00:00
abstract::In a study of 29 cycles of IVF, ET was performed on day 5 after oocyte recovery when embryos had developed to the morula/blastocyst stage. Three preclinical pregnancies and three live births resulted (2 singleton and 1 twin), giving a viable PR per ET of 10%. It is concluded that while day 5 ET may well be important i...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)54257-5
更新日期:1991-04-01 00:00:00
abstract:OBJECTIVE:To evaluate the impact of female smoking on early embryo development in vitro using a time-lapse system. DESIGN:Retrospective analysis of prospectively collected database. SETTING:Assisted reproductive technology (ART) program. PATIENT(S):A total of 135 infertile couples undergoing IVF-intracytoplasmic spe...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2013.01.136
更新日期:2013-06-01 00:00:00
abstract::Transvaginal follicular aspiration (TVA) with ultrasonically guided needles allows the transfer of in vitro generated embryos to the fallopian tubes (TET), performing only one surgical procedure in the process. Up to now, this approach has been used to treat 16 couples with infertility due to severe male factor. Folli...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)60136-x
更新日期:1988-09-01 00:00:00
abstract:OBJECTIVE:To describe the prevalence of hysteroscopic findings and histologic diagnoses in patients with abnormal uterine bleeding (AUB). DESIGN:Retrospective series of consecutive patients. SETTING:Tertiary care university hospital and private office. PATIENT(S):Four thousand fifty-four hysteroscopies with biopsy i...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2007.05.045
更新日期:2008-06-01 00:00:00
abstract:OBJECTIVE:To examine the relation between uterine blood flow and endometrial thickness on transvaginal Doppler ultrasonography, serum E2 and progesterone levels, and the histologic dating of an endometrial biopsy specimen obtained in the midluteal phase of a spontaneous cycle. DESIGN:Prospective clinical study. SETTI...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(99)00455-0
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVE:To determine the effects of prior gravidity on hormonal parameters, medication regimen, oocyte parameters, fertilization, and clinical pregnancy rates (PRs) in donor and own oocyte cycles. DESIGN:A retrospective study of 64 first-attempt ovum donor cycles and 102 first-attempt IVF and ZIFT cycles using own o...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)58157-6
更新日期:1996-03-01 00:00:00