Abstract：
OBJECTIVE:To assess the effect of prenatal vitamin K1 on the coagulation status of newborns. METHODS:We measured noncarboxylated prothrombin and performed the Normotest in two groups of 5-day-old infants whose mothers were given oral vitamin K1, 10 mg/day for 2 weeks at least 10 days before delivery, or were untreated. RESULTS:Noncarboxylated prothrombin was found in one of 74 treated women and 13 of 186 controls, a nonsignificant difference. The mean (+/- standard deviation) Normotest value was 59.6 +/- 10.1% (range 38.9-84.4) for the treated group and 53.4 +/- 9.9% (range 16.3-89.9) for the controls, a statistically significant difference (P < .001). CONCLUSION:Based on the Normotest results, we suggest that vitamin K crosses the placenta and persists to activate the vitamin K-dependent coagulant factors until at least the fifth day of life. Thus, prenatal vitamin K1 administration may replace prophylaxis at birth.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Anai T,Hirota Y,Yoshimatsu J,Oga M,Miyakawa Isubject
Has Abstractpub_date
1993-02-01 00:00:00pages
251-4issue
2eissn
0029-7844issn
1873-233Xjournal_volume
81pub_type
杂志文章abstract：:Twin gestations with diamniotic monochorionic placentas have increased perinatal morbidity. We report a case in which, following the death of one member of a set of twins, absent end-diastolic flow was noted. At delivery, we noted thrombosis of placental vessels and vascular connections between the placental vessels o...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1992-05-01 00:00:00
abstract：:Six sheep fetuses were monitored with a single-probe tissue spectrophotometer. This spectrophotometer provides continuous digital output of the index of hemoglobin that is saturated with oxygen. To vary the fetal pO2, each maternal ewe was given room air, 100% oxygen, 12% oxygen, and 100% nitrogen via rebreathing bag....
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1987-11-01 00:00:00
abstract：BACKGROUND:Important clinical, social, and ethical questions are associated with the evaluation and use of surgical approaches aimed at correcting fetal anatomic abnormalities. In particular, the expansion of maternal-fetal surgery to ameliorate nonlethal fetal conditions has intensified the need to address issues abou...
journal_title：Obstetrics and gynecology
pub_type： 共识发展会议,杂志文章,评审
doi：10.1016/s0029-7844(01)01513-7
更新日期：2001-10-01 00:00:00
abstract：OBJECTIVE:To assess the frequency of cervical stenosis in patients treated by laser conization or the loop electrosurgical excision procedure and to determine the preoperative and therapeutic factors associated with its occurrence. METHODS:Two hundred fifty-five women treated by laser conization and 277 treated by loo...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/S0029-7844(96)00331-6
更新日期：1996-12-01 00:00:00
abstract：:Unfavorable fetal position during diagnostic obstetric ultrasound can interfere with visualization of certain structures, leading to prolonged or repeated examination. Fetal acoustic stimulation induces a fetal startle reflex and an increase in fetal movements. This report describes our experience with fetal acoustic ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：OBJECTIVE:The purposes of this prospective investigation were to determine the frequency of glove perforation during obstetric and gynecologic procedures and to assess the value of double gloving in preventing damage to the inner glove. METHODS:During a 2-month period, surgeons in the Department of Obstetrics and Gyne...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1991-12-01 00:00:00
abstract：:This study reviewed 20 cases of extensive squamous carcinoma in situ of the vulva and posterior perineum. Two patients had concurrent, overt invasive carcinoma of the vulva, 14 patients had concurrent extensive vulvar carcinoma in situ, three patients had previous skinning vulvectomy for carcinoma in situ, and one pat...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1984-09-01 00:00:00
abstract：:A retrospective study of 29 patients with invasive carcinoma of the vagina was completed at The Milton S. Hershey Medical Center, Pennsylvania State University, for a ten-year period from 1976-1986. The overall incidence was 1.3% of all gynecologic malignancies. Twenty-four patients (83%) had squamous cell carcinoma a...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1988-07-01 00:00:00
abstract：:Aggressive surgery may improve the outcome of patients with ovarian cancer. To assess the risk of operative complications, we analyzed 472 primary and 299 repeat operations for ovarian cancer in 536 women between 14-91 years of age. Intraoperative bleeding estimated to be over 1000 mL (N = 107) was more common after p...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1992-02-01 00:00:00
abstract：:Acknowledgement of the importance of patient autonomy and increased patient access to information has prompted more patient - generated requests for surgical interventions not necessarily recommended by their physicians. Decision making in obstetrics and gynecology should be guided by the ethical principles of respect...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000291581.16747.24
更新日期：2008-01-01 00:00:00
abstract：OBJECTIVE:To estimate receipt of recommended gynecologic care, including cancer screening and menstrual care, among women with Down syndrome in the United States. METHODS:We conducted a retrospective cohort study of women participating in DS-Connect, the National Institute of Health's registry of women with Down syndr...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000003997
更新日期：2020-09-01 00:00:00
abstract：:Before the discovery of insulin in 1921, pregnancies in women with diabetes mellitus were a rarity because most reproductive-age patients died soon after diagnosis of this illness. In the limited number of pregnancies reported in the pre-insulin era, both perinatal and maternal mortality were approximately 50%, with s...
journal_title：Obstetrics and gynecology
pub_type： 历史文章,杂志文章
doi：
更新日期：1992-02-01 00:00:00
abstract：:We studied 30 control women and 131 pill users to evaluate effects of birth control pills and clinical factors on hemostasis. When control patients were matched with an equal number of pill users, none of the direct markers of activated hemostasis (fibrinopeptide A, platelet factor 4, and beta thromboglobulin) were in...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1988-04-01 00:00:00
abstract：OBJECTIVE:To estimate rates of postpartum glucose tolerance testing in women diagnosed with gestational diabetes mellitus (GDM) and to assess factors associated with testing. METHODS:This was a retrospective cohort study of 344 women with GDM who received prenatal care in a maternal diabetes clinic during 2001-2004. R...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000245446.85868.73
更新日期：2006-12-01 00:00:00
abstract：OBJECTIVE:To study abortion training in Canadian obstetrics and gynecology (ob-gyn) residency programs. METHODS:An anonymous questionnaire was sent to all postgraduate year (PGY)-4 and PGY-5 ob-gyn residents (n=130) and residency program directors (n=16) in Canada. The questionnaires inquired about demographic informa...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000225915.16083.91
更新日期：2006-08-01 00:00:00
abstract：OBJECTIVE:To estimate whether transforming growth factor-beta1 in fetal serum obtained by umbilical cord sampling at delivery is correlated with fetal growth. We also estimated whether transforming growth factor-beta1 is correlated with insulin-like growth factor-I and insulin-like growth factor binding protein-1, whic...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：2002-09-01 00:00:00
abstract：OBJECTIVE:To compare the odds of a good perinatal outcome between cryopreserved and fresh donor oocytes. METHODS:We used the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System to conduct a retrospective cohort study of women undergoing donor oocyte in vitro fertilization (IVF) from 2012 to 2...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000003695
更新日期：2020-03-01 00:00:00
abstract：OBJECTIVE:To study whether using 95% humidified, heated carbon dioxide (CO(2)) at laparoscopy reduces pain compared with dry, heated CO(2). METHODS:Patients were randomly assigned to either heated, 95% humidified CO(2) (study group) or heated, dry CO(2) (control group) during laparoscopy. Pain control was achieved per...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1097/01.AOG.0000194065.59688.fa
更新日期：2006-02-01 00:00:00
abstract：OBJECTIVE:To evaluate the power transmission, spot size, power density, and energy density of a new isotopic carbon dioxide (13CO2) laser compared with a conventional CO2 laser. METHODS:Experiments were performed in a laboratory using a conventional CO2 laser and an isotopic 13CO2 laser. Two laparoscopes with 5-mm and...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：:We compared the TDx Fetal Lung Maturity test and the fluorescence polarization method using 1-palmitoyl-2(6-[(7-nitro-2,1,3-benzoxadiazol-4- yl)amino]caproyl)phosphatidylcholine (NBD-phosphatidylcholine). Using 76 paired human amniotic fluid samples, the fluorescence polarization values of the two methods were found t...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1992-12-01 00:00:00
abstract：OBJECTIVE:To estimate the effectiveness against early-onset group B streptococcal (GBS) disease of intrapartum antibiotic prophylaxis among term and preterm deliveries, deliveries with fewer than 4 hours of antibiotics, and deliveries receiving clindamycin regimens. METHODS:We performed a secondary analysis of the Bir...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e318280d4f6
更新日期：2013-03-01 00:00:00
abstract：OBJECTIVE:To develop a simulation-based curricular unit for labor and delivery teams involved in obstetric emergencies to detect and address common mistakes. METHODS:A simulation-based curricular unit for hands-on training of four obstetric emergency scenarios was developed using high-tech mannequins and low-tech simu...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000265208.16659.c9
更新日期：2007-06-01 00:00:00
abstract：:A pregnant patient with Eisenmenger's syndrome is reported. The hemodynamic data gathered during this pregnancy suggest that decreased peripheral vascular resistance and reflex bradycardia secondary to postural changes could be of extreme importance in contributing to the extremely high maternal mortality. Suggestions...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1977-07-01 00:00:00
abstract：:Predictors of postpartum endometritis were identified in 607 asymptomatic, laboring women. One hundred (16.5%) developed postpartum endometritis. Multivariate analysis using stepwise logistic regression identified cesarean delivery (relative risk 12.8; P less than .0001) as the dominant overall predictor. In patients ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-03-01 00:00:00
abstract：OBJECTIVE:To compare the pharmacokinetics of vaginal and oral administration of the prostaglandin E1 analogue, misoprostol. METHODS:Twenty women received 400-micrograms doses of misoprostol either orally or as tablets placed in the vagina. Serum levels of principal metabolite, misoprostol acid, were measured at 7.5, 1...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/S0029-7844(97)00111-7
更新日期：1997-07-01 00:00:00
abstract：OBJECTIVE:To investigate the relationship between erythropoietin concentration in umbilical venous blood and clinical signs of fetal hypoxia. METHODS:We measured erythropoietin concentrations in umbilical venous blood from 200 consecutively born neonates using an enzyme-linked immunosorbent assay (ELISA) with two mono...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,评审
doi：
更新日期：1993-04-01 00:00:00
abstract：:Cyclic progestin therapy has been widely advocated as an adjunct to postmenopausal estrogen replacement therapy to reduce the risk of endometrial carcinoma. Acceptance of this approach, however, appears to have preceded detailed evaluation of possible adverse side effects of progestins that could result in patient non...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1991-07-01 00:00:00
abstract：:The outcome of delivery of infants weighing more than 4000 g born during two time periods 15 years apart was studied retrospectively. The increased use of cesarean section and other obstetric advances did not reduce the risk of fetal asphyxia and trauma associated with large fetal size. Maternal factors were identifie...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1983-06-01 00:00:00
abstract：:The serum concentration of placental protein 12 was measured by radioimmunoassay in 111 apparently healthy pregnant women at 33 to 40 weeks, and the results were compared with those of 39 women with preeclampsia either with or without proteinuria at similar stages of pregnancy. Because the placental protein 12 levels ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1986-07-01 00:00:00
abstract：BACKGROUND:Pessaries are a treatment option for pelvic organ prolapse, stress urinary incontinence (SUI), and cervical incompetence. An effective pessary is comfortable, corrects the presenting problem, does not cause adverse effects, and is easy to remove. Discomfort and poor fit limit the usefulness of pessaries for ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000002461
更新日期：2018-03-01 00:00:00
