Abstract:
BACKGROUND:Umbilical vascular coiling may function as a rudimentary pump that facilitates venous return from the placenta. CASES:Three consecutive twin gestations with twin-twin transfusion syndrome were evaluated prospectively at delivery. The birth weights and umbilical coiling indices of donor and recipient twins were compared. The umbilical coiling index was determined by dividing the number of complete vascular coils in a given umbilical cord by the cord's length in centimeters. In each case, the recipient twin was larger at birth and had an umbilical coiling index value that was at least twice that of the corresponding donor twin. CONCLUSION:Differential umbilical vascular coiling densities among monochorionic twins may play a role in the pathogenesis of twin-twin transfusion syndrome.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Strong TH Jrdoi
10.1016/s0029-7844(97)00057-4subject
Has Abstractpub_date
1997-05-01 00:00:00pages
812-3issue
5 Pt 2eissn
0029-7844issn
1873-233Xjournal_volume
89pub_type
杂志文章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...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1993-02-01 00:00:00
abstract:BACKGROUND:After maternal acetaminophen overdose, fetal fulminant liver failure, stillbirth, neonatal death, or preterm delivery may occur. CASE:A 27-year-old woman, gravida 2 para 1, presented at 28 weeks of gestation after unintentional acetaminophen overdose. Four days after ingestion, her laboratory values worsene...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000002089
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVE:To estimate whether the time interval between cervical conization and subsequent pregnancy is associated with risk of preterm birth. METHODS:Our study is a case control study nested in a retrospective cohort. Women who underwent colposcopic biopsy or conization with loop electrosurgical excision procedure, l...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000251497.55065.74
更新日期:2007-02-01 00:00:00
abstract::We previously reported surgical correction of vaginal agenesis and partial cervical atresia in an 11-year-old girl with amenorrhea and a pelvic mass. This patient, the subject of this report, conceived 7 years later and delivered at term. An abdominal cerclage was placed at 12 weeks' gestation to protect the cervix, a...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-199011001-00001
更新日期:1990-11-01 00:00:00
abstract::Ten cases of malignant tumors arising in foci of gonadal and extragonadal endometriosis are reported and added to 195 previously reported cases from the English literature. The ovary was the primary site in 165 (78.7%) of the cases, whereas extragonadal sites represented 44 (21.3%). Endometrioid adenocarcinomas accoun...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:
更新日期:1990-06-01 00:00:00
abstract:OBJECTIVE:To examine the associations of maternal and child characteristics with early pregnancy maternal concentrations of testosterone, androstenedione, progesterone, 17-hydroxyprogesterone, and estradiol (E2). METHODS:We analyzed these hormones among 1,343 women with singleton pregnancies who donated serum samples ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3182342b7f
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVE:To compare the effect of delivery on cerebral blood flow velocity between normotensive and preeclamptic women, adjusting for mode of delivery and change in hematocrit values. METHODS:Twenty-three normotensive and 46 preeclamptic women had maternal middle cerebral blood flow velocity assessed antepartum and a...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1993-09-01 00:00:00
abstract::Continuous-wave and pulsed Doppler ultrasound measurements of blood flow velocity waveforms of both uterine and umbilical arteries were performed on 85 patients to assess the correlation between these two measurements techniques. Peak systolic to end-diastolic (S/D) ratios measured by continuous-wave devices were not ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1988-10-01 00:00:00
abstract::There is growing recognition of the importance and potential benefit of information technology and electronic medical records in providing quality care for women. Incorporation of obstetrician-gynecologist-specific requirements by electronic medical record vendors is essential to achieve appropriate electronic medical...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3181e1328c
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Postoperative bleeding may be complicated by failure to identify the site of bleeding, multiple bleeding points, and persistent hemorrhage despite surgical intervention. CASE:Activated recombinant factor VII was used successfully in a patient with life-threatening postsurgical bleeding after resection of tw...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:2003-06-01 00:00:00
abstract::Previous published reports have shown that fetuses affected with Down syndrome have normal biparietal diameter (BPD), high BPD-to-femur length ratio, and shorter femur length and occipitofrontal diameter. A retrospective comparison of the BPD, occipitofrontal diameter, cephalic index, femur length, and BPD/femur lengt...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1990-02-01 00:00:00
abstract::Fifty-two women undergoing labor induction and vaginal delivery at term were randomized between two oxytocin infusion protocols, involving hourly versus quarter-hourly increases in dose. Potential differences were sought of duration of labor, amount of uterine activity generated, and amount of oxytocin required. Start...
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:1990-05-01 00:00:00
abstract::Three patients with International Federation of Gynecology and Obstetrics state IIIC ovarian adenocarcinoma underwent CO2 laser vaporization of large-volume (5-6 cm) and miliary right hemidiaphragmatic metastases at the conclusion of standard debulking surgery to effect optimal cytoreduction. Destruction of diaphragma...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1990-10-01 00:00:00
abstract:OBJECTIVE:To estimate the effect of protein supplementation of culture media on reactive oxygen species production and incidence of apoptosis in preimplantation mouse embryos. METHODS:A total of 72 two-cell mouse embryos were cultured in human tubal fluid (HTF) alone (HTF-alone, control) and 71 embryos in HTF with pro...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000152384.91385.71
更新日期:2005-03-01 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::Eighty-eight cases of Stage I and Stage II carcinoma of the cervix treated with radiotherapy at the University of North Carolina Memorial Hospital between April 1969 and July 1971 are reviewed. The question of whether the radiation time-dose-fraction relationship can be applied to the combination of external beam and ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1975-10-01 00:00:00
abstract:OBJECTIVE:To compare blood loss, operative time, postoperative pain medication requirements, and complication rates in patients undergoing vaginal hysterectomy who were randomly assigned to receive preoperative intracervical vasopressin or no intracervical injection. METHODS:Fifty-eight women undergoing vaginal hyster...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,随机对照试验
doi:10.1097/AOG.0b013e3181954c44
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVE:To evaluate galactography and cytology in women with nipple discharge without clinical or mammographic evidence of cancer. METHODS:During a 12.5-year period, 384 women (15-85 years, mean age 47.5 +/- 14 years) were referred for galactography and smear cytology for recent onset of spontaneous, non-milky nippl...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(00)01229-1
更新日期:2001-04-01 00:00:00
abstract:BACKGROUND:It has been suggested that Q fever infection in pregnancy is associated with various maternal and neonatal adverse outcomes, including intrauterine growth restriction, stillbirth, preterm delivery, intrauterine fetal death, and oligohydramnios. CASE:We describe the cases of two pregnant women remote from te...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e318260590f
更新日期:2012-08-01 00:00:00
abstract::A rabbit serum fraction was prepared which contained antibody specific for unique antigen(s) found in human condylomata acuminata tissue but not in other human papillomatous or normal tissues. Indirect immunofluorescent staining of cryostat sections of human tissues demonstrated an intense nuclear fluorescence in cell...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1981-03-01 00:00:00
abstract::Accurately defining a patient's risk of developing breast cancer is a challenging endeavor. Many factors have been implicated in the causation of breast cancer and quantifying them is difficult. Risk stratification is performed using population models, such as the Gail model, as well as the patient's personal and fami...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1097/01.AOG.0000295638.83285.97
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVE:To estimate whether first-trimester exposure to nitrofurantoin is associated with increased malformation rates and, secondarily, to estimate whether exposure to nitrofurantoin is associated with increased rates of negative pregnancy outcomes and perinatal complications. METHODS:We conducted a population-base...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e31827c5f88
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVE:To study the state of erythrocyte adhesiveness/aggregation in the peripheral blood of women with pregnancy-induced hypertension as well as in matched controls using a simple slide test and image analysis. METHODS:We recruited 25 women with pregnancy-induced hypertension. Twenty-five age- and gestational age-...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(01)01458-2
更新日期:2001-08-01 00:00:00
abstract:OBJECTIVE:To describe a pilot implementation of couple's human immunodeficiency virus (HIV) testing and counseling in an antenatal care clinic in the United States. METHODS:We used a cross-sectional study design. Couples were recruited from an antenatal care clinic of a large, urban, tertiary medical center, and were ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003932
更新日期:2020-09-01 00:00:00
abstract::One hundred consecutive cases of hyperplasia of the endometrium were referred to the Sloane Hospital for Women. The referral diagnoses and consultation diagnoses were compared for the purpose of analyzing common diagnostic problems in interpretation of endometrial hyperplasias and the use of diagnostic terminology as ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1984-08-01 00:00:00
abstract::Serum glucose levels were measured in 50 nondiabetic pregnant women between 33 and 43 weeks' gestation following a nonstress test (NST) to determine the relationship between maternal glucose levels and the results of the NST. Two comparable groups of 25 patients each were formed based on the NST results, reactive and ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1982-10-01 00:00:00
abstract:OBJECTIVE:To investigate the ability of fetal urinalysis to predict in utero the renal function of children with bilateral uropathy who survive to the second year of life. METHODS:This was a prospective cohort study of 100 consecutive patients with prenatal diagnosis of bilateral uropathy who underwent fetal urine sam...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1993-11-01 00:00:00
abstract::Real time ultrasonographic examination of the fetal perineal area after 30 weeks of gestation can reveal the external genitalia of the male fetus. The absence of this finding indicates a female fetus. This assessment is possible in up to two-thirds of cases, being limited only by the fetal presentation, position, and ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1977-10-01 00:00:00
abstract:BACKGROUND:Stevens-Johnson syndrome and toxic epidermal necrolysis are life-threatening dermatologic disorders that are more common in the setting of a compromised immune system. We present the case of a pregnant patient with known human immunodeficiency virus (HIV) infection who presented with Stevens-Johnson syndrome...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000157766.49494.99
更新日期:2005-05-01 00:00:00
abstract::Ectopic pregnancy is suspected when a pregnancy test is positive and an Arias-Stella phenomenon with decidua is seen on endometrial curettings in the absence of chorionic villi and trophoblast. We performed immunoperoxidase stains for beta-hCG, hPL, placental alkaline phosphatase, and keratin (AE1/AE3) on endometrial ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-09-01 00:00:00