Abstract：
OBJECTIVE:Blastocysts are advanced-stage embryos with high implantation potential; theoretically, limited numbers of blastocysts can be used for embryo transfer to achieve good pregnancy rates with low multiple pregnancy rates. Clinical outcomes of a newly implemented blastocyst transfer program were evaluated. STUDY DESIGN:This study is a retrospective analysis of 553 blastocyst transfer cycles performed by a university-based in vitro fertilization program; risk factors associated with multiple gestations were analyzed. RESULTS:An average of 2.2 embryos were used for embryo transfer. The overall clinical pregnancy rate per embryo transfer was 45.1%; multiple gestation, twin, and triplet rates were 40.9%, 36.5%, and 4.3%, respectively. Multiple gestations increased significantly (1) when embryo transfer was done on day 5, (2) when > or =2 blastocysts were present on day 5, and (3) when maternal age was < or =30 years. CONCLUSION:In spite of a conservative approach to the number of blastocysts used for embryo transfer, the overall multiple pregnancy rate was high, and triplet pregnancies did occur.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Gorrill MJ,Sadler-Fredd K,Patton PE,Burry KAdoi
10.1067/mob.2001.114851subject
Has Abstractpub_date
2001-06-01 00:00:00pages
1471-5; discussion 1475-7issue
7eissn
0002-9378issn
1097-6868pii
S0002937801893716journal_volume
184pub_type
杂志文章abstract：:Steroid contraception was developed in the late 1950s and introduced into use in the early 1960s. It soon became apparent that estroprogestational agents had adverse systemic effects, mainly on the cardiovascular and blood coagulation system. During the 1970s, new contraceptive agents were developed that contained 3...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32475-9
更新日期：1982-03-15 00:00:00
abstract：OBJECTIVE:This study aimed to investigate the effect of maternal cigarette smoking on endothelial nitric oxide synthase (eNOS) activity and concentration in the fetal umbilical vein, and subsequently, to relate the findings to the size of the newborn. STUDY DESIGN:Forty-four nonsmoking and 30 smoking women were includ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2003.12.040
更新日期：2004-07-01 00:00:00
abstract：:Urinary tract infections are the most common outpatient infections, but predicting the probability of urinary tract infections through symptoms and test results can be complex. The most diagnostic symptoms of urinary tract infections include change in frequency, dysuria, urgency, and presence or absence of vaginal dis...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2017.12.231
更新日期：2018-07-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate the feasibility and efficacy of laparoscopic radiofrequency ablation of uterine fibroids. STUDY DESIGN:Eighteen women with symptomatic intramural uterine myomas underwent radiofrequency ablation under laparoscopic guidance. Postoperative sonographic evaluations of th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.10.591
更新日期：2005-03-01 00:00:00
abstract：:Several copper and cupric ion sources were shown to kill or inhibit the growth of Neisseria gonorrhoeae in vitro. The media used was GC Agar Base supplemented with Isovitalex. Pure copper shot, cupric sulfate, and cupric chloride were used as copper sources. E. coli and Neisseria meningitis were used in addition to...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(73)90889-2
更新日期：1973-05-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to analyze the trend in subspecialization among men graduating from obstetrics and gynecology residency programs. STUDY DESIGN:Results of the Survey of Residents Completing Training in New York State were analyzed for 1998 to 2003. The proportions of men and women graduating fro...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2006.07.043
更新日期：2006-11-01 00:00:00
abstract：:Pelvic inflammatory disease is a major medical problem that causes serious complications in a large number of the female population in many developing countries. It is estimated that between 20% and 30% of gynecologic admissions in these countries are due to PID. The alarmingly high prevalence of gonorrhea is probably...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(80)91114-x
更新日期：1980-12-01 00:00:00
abstract：OBJECTIVE:Conventional diagnosis of bacterial vaginosis contains some controversial points. To understand accurately the relationship between clinical stages and the microbiotas, the intravaginal microbial flora was analyzed by the clone library method. STUDY DESIGN:Vaginal fluid samples from 31 patients were examined...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.04.018
更新日期：2011-09-01 00:00:00
abstract：OBJECTIVE:In preterm labor increased concentrations of interleukin-1 and tumor necrosis factor are present in amniotic fluid. These cytokines may promote labor by stimulating the production of prostaglandins by intrauterine tissues. In many biologic processes, transforming growth factor-beta modifies the actions of cyt...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91662-7
更新日期：1992-07-01 00:00:00
abstract：OBJECTIVE:Our intention was to determine whether there is a unique pattern of infertility diagnoses in older infertile couples. STUDY DESIGN:The design of this study was a retrospective chart review study. It was performed in a tertiary referral reproductive medicine unit. There were 2 groups of patients-couples: grou...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70331-5
更新日期：1999-10-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate the long-term impact of anal sphincter laceration on anal incontinence. STUDY DESIGN:Five to 10 years after first delivery, anal incontinence and other bowel symptoms were measured with the Epidemiology of Prolapse and Incontinence Questionnaire and the short form...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.06.055
更新日期：2012-11-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to determine the relationship among cervical lactoferrin concentration, other cervical markers potentially related to infection, and spontaneous preterm birth. STUDY DESIGN:Cervical lactoferrin concentrations obtained at 22 to 24 weeks' gestation among 121 women who had a spontaneou...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.104211
更新日期：2000-03-01 00:00:00
abstract：:One of the largest nationally reported cases of carcinoma in situ in the teenage population of the United States is based on 1 year's computerized data from Cancer Screening Services. In 1981, 796,337 women were screened with an average age of 25.9. Of these, 18,589 (2.33%) had abnormal cytology. In 194,069 (24.3%) of...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90555-6
更新日期：1984-03-15 00:00:00
abstract：:Maternal, fetal, and neonatal results and complications were analyzed after 923 genetic amniocenteses. Maternal age of 35 years and beyond was associated with a 2.0% risk of fetal trisomy 21 and a 3.0% risk of all major chromosome abnormalities. Comparable rates for women aged 40 and beyond were 4.8% and 7.2%. Neural ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1983-05-15 00:00:00
abstract：OBJECTIVE:The purpose of this study was to compare the performance of first-trimester nuchal translucency (NT) cutoff of ≥3.5 mm with NT percentiles that were calculated for crown-rump length to identify fetuses with critical congenital heart defects (CCHDs). STUDY DESIGN:This was a population-level study of singleton...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2014.10.1102
更新日期：2015-04-01 00:00:00
abstract：OBJECTIVE:Our goal was to evaluate whether active management of labor lowers cesarean section rates, shortens the length of labor, and overcomes any negative effects of epidural analgesia on nulliparous labor. STUDY DESIGN:We randomly assigned 405 low-risk term nulliparous patients to either an active management of la...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0002-9378(97)70152-2
更新日期：1997-09-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to characterize variations in the management for women with preterm premature rupture of membranes (PPROM) among maternal-fetal medicine (MFM) specialists in the context of current recommendations for clinical practice and evidenced-based practice. STUDY DESIGN:We performed a Web-ba...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.08.005
更新日期：2004-10-01 00:00:00
abstract：:Two studies were performed to assess the effect of fat feeding on glucose tolerance before, during, and after gestation of BHE rats. In the first study 5% or 22% fat diets were fed from 3 weeks before mating until after gestation. In the second study, these diets were fed from weaning until 400 days of age. Glucose to...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90272-x
更新日期：1989-07-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to study the incidence of severe cerebral injury in monochorionic (MC) twins with selective intrauterine growth restriction (sIUGR) and/or birthweight discordance. STUDY DESIGN:All MC twin pregnancies with 2 liveborn twins were included in the study. We excluded all cases with ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.06.008
更新日期：2008-12-01 00:00:00
abstract：:Oral contraceptives (OCs) raise the plasma levels of some clotting factors, especially factor VII. Until recently, however, there has been no evidence for a relationship between high levels of clotting factor and the onset of clinically manifest vascular disease. It has not been established, on a preliminary basis, th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32484-x
更新日期：1982-03-15 00:00:00
abstract：:A case of ovarian and systemic sarcoidosis with mucinous cystadenoma coexisting in the same ovary is described. This association has not been previously reported. The differentiation of systemic sarcoidosis from metastatic spread of ovarian cancer and from sarcoid-like reactions in regional lymph nodes of tumors is di...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90038-9
更新日期：1990-05-01 00:00:00
abstract：:The regional distribution of cerebral blood flow was assessed in eight control and eight morphometrically growth-retarded fetal lambs to determine whether perfusion patterns within the cerebral circulation are altered in this model of intrauterine growth retardation. Growth retardation was induced by repetitive emboli...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90460-5
更新日期：1984-12-01 00:00:00
abstract：:An analysis of United States birth certificate records for the calendar year 1977 indicated that women who failed to seek prenatal care were at increased risk of delivery of a low-birth weight infant, even after social factors were considered. However, the strength of association, as well as the population impact, bet...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90681-6
更新日期：1983-04-01 00:00:00
abstract：OBJECTIVES:Preeclampsia is an important cause of fetal and maternal morbidity and mortality. Recently it was described that platelet cytosolic Ca++ levels could be used to screen for preeclampsia. The current study investigated platelet arginine vasopressin receptor characteristics, platelet cytosolic Ca++ levels, plas...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90276-o
更新日期：1993-11-01 00:00:00
abstract：:A total of 258 patients with candidal vulvovaginitis, all of whom also exhibited Candida organisms in the rectum, were treated for 1 week with vaginal tablets only (nystatin or clotrimazole) or with both vaginal and oral tablets (nystatin). Mycologic and symptomatic responses were superior for the group receiving comb...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(86)90297-8
更新日期：1986-09-01 00:00:00
abstract：:An antiserum to 13,14-dihydro-15-keto-prostaglandin F2alpha (PGF2alphaM) was prepared and a radioimmunoassay evaluated in various reproductive states. PGF2alphaM plasma concentration was 63.6 +/- 10.3 pg/ml (mean +/- SEM) in cycling women. The concentration fluctuated throughout the menstrual cycle and pregnancy, but ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)33031-9
更新日期：1979-06-01 00:00:00
abstract：:In a prospective study, 2 gm of conjugated estrogen vaginal cream was administered daily for a total of 6 weeks in a group of 11 postmenopausal women with urodynamically proved genuine stress incontinence. Midurethral cytologic studies and a complete clinical and urodynamic evaluation were performed twice at 6-week in...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90114-2
更新日期：1989-01-01 00:00:00
abstract：:The changes in plasma lipids induced by the use of oral contraceptive pills have been shown in several studies to remain within normal physiologic limits. These changes are then probably without any clinical relevance because there is no evidence in the huge volume of oral contraceptive and cardiovascular literature t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(90)90588-x
更新日期：1990-07-01 00:00:00
abstract：OBJECTIVE:We sought to investigate the safety and efficacy of laparoscopic incidental appendectomy during laparoscopic surgery for endometrioma. STUDY DESIGN:We conducted a retrospective study of 356 patients undergoing laparoscopic surgery for endometrioma with appendectomy (appendectomy group, n = 172) or not (nonap...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.08.042
更新日期：2011-01-01 00:00:00
abstract：OBJECTIVE:We hypothesized that body composition would be similar among neonates of women with gestational diabetes (GDM) treated with glyburide or insulin. STUDY DESIGN:Women with GDM requiring medical therapy were randomized to insulin or glyburide. The primary outcome was percent neonatal fat mass measured by total ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ajog.2009.02.038
更新日期：2009-05-01 00:00:00
