Abstract:
OBJECTIVE:To determine if bacteria are capable of producing phosphatidylglycerol in amniotic fluid (AF) and the number of colony forming units (CFU) of bacteria necessary to produce this result. METHODS:Eleven species of bacteria and one species of yeast, common to the female genital tract and implicated in chorioamnionitis, were selected. Amniotic fluid was collected from 21 women and inoculated with 10(8) CFU/mL of each isolate. Aliquots of AF were tested at 0, 4, 12, and 24 hours for colony counts and the presence of phosphatidylglycerol by thin-layer chromatography. RESULTS:The mean gestational age (+/- standard deviation) of the 21 study patients was 33 weeks and 1 day (+/- 4 weeks). Among the 12 species studied, Escherichia coli produced phosphatidylglycerol, at a concentration of 1.75 x 10(8) CFU/mL, beginning 12 hours after incubation. CONCLUSION:Escherichia coli is capable of producing phosphatidylglycerol in AF in vitro and is present in the vagina in 24% of normal pregnant patients. Our findings question the validity of using vaginal pool AF specimens for phosphatidylglycerol determination. Therefore, we recommend that patients presenting with preterm premature rupture of membranes be evaluated by amniocentesis to determine fetal lung maturity with phosphatidylglycerol and the lecithin-sphingomyelin ratio.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Lambers DS,Brady K,Leist PA,Setser C,Helmchen Rdoi
10.1016/0029-7844(95)00032-msubject
Has Abstractpub_date
1995-05-01 00:00:00pages
651-5issue
5 Pt 1eissn
0029-7844issn
1873-233Xjournal_volume
85pub_type
杂志文章abstract:BACKGROUND:Cortical blindness is a complication of severe preeclampsia, but it is unclear whether it results from cerebral vasospasm and ischemic injury or vasogenic (hydrostatic) edema due to increased capillary permeability. CASE:Reversible cortical blindness in a 33-year-old gravida 2, para 1, with severe postpartu...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(00)00878-4
更新日期:2000-06-01 00:00:00
abstract:OBJECTIVE:To examine levels of serum tryptophan and its degradation product kynurenine in uncomplicated pregnancy, according to the week of pregnancy and the concentrations of neopterin. METHODS:Plasma was analyzed from 45 healthy pregnant women (15 in each trimester), 15 healthy puerperas, and 20 nonpregnant controls...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(96)00084-1
更新日期:1996-07-01 00:00:00
abstract::This study was undertaken to compare the outcome of pregnancy in patients treated for some type of infertility problem to that of a control group of patients from the same obstetric unit and also to the reported literature. Reported are the primary outcomes of 122 pregnancies in 104 patients treated for infertility an...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1977-02-01 00:00:00
abstract::The effect of reporting therapeutic abortions in Maryland from 1968-1970 to assess the impact of the new abortion law, which was a liberalization of the previous law, is discussed. All hospitals in the state were required to report on all abortions performed. In fiscal year 1969, 2134 abortions were performed, while...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1972-06-01 00:00:00
abstract::This review summarizes the current evaluation and management of gestational trophoblastic disease, including evacuation of hydatidiform moles, surveillance after evacuation of hydatidiform mole and the diagnosis and management of gestational trophoblastic neoplasia. Most women with gestational trophoblastic disease ca...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000004240
更新日期:2021-02-01 00:00:00
abstract::Nine cases of condylomatous carcinoma (squamous cell carcinoma arising in condyloma acuminatum) of the vulva were studied for their clinical history, histopathology, and presence of human papillomavirus (HPV) DNA. Condylomatous carcinoma occurred primarily in an elderly population with a mean age of 70 years. There wa...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1988-07-01 00:00:00
abstract::As hospitals and medical schools confronted coronavirus disease 2019 (COVID-19), medical students were essentially restricted from all clinical work in an effort to prioritize their safety and the safety of others. One downstream effect of this decision was that students were designated as nonessential, in contrast to...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000004113
更新日期:2020-10-01 00:00:00
abstract::Fourteen cases of typhoid fever complicating pregnancy are presented. The diagnosis was confirmed by blood cultures in 13 patients and by a rising Widal titer in one. Stool cultures were positive in only two out of five patients; urine cultures in 12 patients and cervical cultures in five patients were all negative. T...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1988-05-01 00:00:00
abstract::In bipolar electrocoagulation of the fallopian tubes, the electric current is between the tips of the forceps, which are visualized. Therefore, unnoticed burn injuries are uncommon. We describe a case of ureteral stenosis due to inadvertent burn injury, which was successfully managed conservatively. ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1988-03-01 00:00:00
abstract:OBJECTIVE:To compare midwife and obstetrician labor practices and birth outcomes in women with low-risk pregnancies delivered in the hospital. METHODS:We conducted a retrospective cohort study of singleton births of 37 0/7-42 6/7 weeks of gestation at 11 hospitals between January 1, 2014, and December 31, 2018. Exclus...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003521
更新日期:2019-11-01 00:00:00
abstract::Despite the use of prophylactic antibiotics, endometritis occurs in 1-31% of patients after cesarean delivery. We sought to identify predictors of prophylactic antibiotic failure. In a retrospective review of 1800 cesarean deliveries, 766 patients had either ampicillin or cefazolin prophylaxis; 240 (31.3%) developed e...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract::A case of human fetal renal maldevelopment following the administration of nitrogen mustard, vincristine, procarbazine, and prednisone in early pregnancy for therapy of Hodgkin's disease is reported. While these agents have been shown to be teratogenic in animal experiments, adverse fetal effects following their use d...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1975-08-01 00:00:00
abstract::A successful pregnancy occurred in the first year after liver transplantation. The patient was treated with prednisolone, azathioprine, and low-dose cyclosporine A. A healthy girl of 2260 g (fifth to tenth percentile) was born at 38 weeks. ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1989-09-01 00:00:00
abstract::Findings from basic neuroscience have provided information on the effects of estrogen on brain morphology and chemistry that explain how this sex steroid may influence brain function. The clinical literature shows that estrogen enhances mood and specific aspects of cognitive functioning in postmenopausal women. There ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(95)00431-9
更新日期:1996-02-01 00:00:00
abstract::Pain management should be provided whenever medically indicated. The American Society of Anesthesiologists (ASA) and the American College of Obstetricians and Gynecologists (ACOG) believe that women requesting epidural analgesia during labor should not be deprived of this service based on their insurance or inadequate...
journal_title:Obstetrics and gynecology
pub_type: 指南,杂志文章,实务指引
doi:
更新日期:2004-07-01 00:00:00
abstract:BACKGROUND:Uterine leiomyosarcoma is an aggressive tumor that has a propensity for distant metastasis. Distant sites of spread include the lung, liver, brain, and bone. CASE:A woman in her 5th decade was diagnosed with stage IV leiomyosarcoma of the uterus. Distant metastasis in the chest was confirmed by thoracotomy ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(02)02191-9
更新日期:2002-11-01 00:00:00
abstract:OBJECTIVE:To determine the relationship between lower urinary tract symptoms and possible associated risk factors in women 40-60 years old. METHODS:In a normal population study, 502 women with lower urinary tract symptoms and 742 women with no symptoms (controls) were asked about possible associated factors. RESULTS:...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
abstract:OBJECTIVE:To estimate why the live birth rate per implanted embryo is higher in twin than in singleton pregnancies. METHODS:Data from 1,159 singleton and 523 dichorionic twin pregnancies, obtained after assisted conception, were included. To account for the higher live birth rate observed in twin pregnancies, two poss...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e31823bf978
更新日期:2012-01-01 00:00:00
abstract::The short luteal phase is commonly found in ovulating women presenting with infertility, or in amenorrheic women induced to ovulate with clomiphene. When the short luteal phase defect is accompanied by the discovery of galactorrhea, the two abnormalities may share a common underlying cause. Two cases are presented to ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1976-04-01 00:00:00
abstract::Electromechanical morcellators have come under scrutiny with concerns about complications involving iatrogenic dissemination of both benign and malignant tissues. Although the rapidly rotating blade has resulted in morcellator-related vascular and visceral injuries, equally concerning are the multiple reports in the l...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1097/AOG.0000000000000448
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:Positron emission tomography (PET) fused with computed tomography (CT) imaging is common in the clinical assessment of patients with locally advanced cervical cancer. Limitations to the utilization and interpretation of PET-CT scans in patients with cervical cancer have been described, including false-positi...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000701
更新日期:2015-07-01 00:00:00
abstract:BACKGROUND:Functional ovarian cysts are a common gynecological problem among women of reproductive age worldwide. When large, persistent, or painful, these cysts may require operations, sometimes resulting in removal of the ovary. Since early oral contraceptives were associated with a reduced incidence of functional ov...
journal_title:Obstetrics and gynecology
pub_type: 评论,杂志文章
doi:10.1097/AOG.0b013e3181b5a547
更新日期:2009-09-01 00:00:00
abstract::Inappropriate milk-like secretion from the breasts is not infrequently encountered in patients. Usually these secretions have been identified as milk on the basis of their characteristic appearance, and only rarely has their identity as milk been proven by appropriate analysis. Since milk is chemically defined as a la...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1975-09-01 00:00:00
abstract::A method of removing an IUD whose strings may be lost is discussed. Having identified the intrauterine location of the IUD by touch with probe, a second Lippes loop was placed and the long strings not trimmed at all. When the patient returned later the most recently placed loop was removed and the strings of the fir...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1974-07-01 00:00:00
abstract::Methods of delivery, maternal and neonatal characteristics were examined to determine their role in the occurrence of Erb/Duchenne's palsy. Data from 210,947 Washington state birth certificates from 1980 through 1982 were examined. The incidence was 50.2 cases of Erb's palsy per 100,000 live births. A case control stu...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1986-12-01 00:00:00
abstract::Corticosteroid administration before anticipated preterm birth is one of the most important antenatal therapies available to improve newborn outcomes. A single course of corticosteroids is recommended for pregnant women between 24 0/7 weeks and 33 6/7 weeks of gestation, including for those with ruptured membranes and...
journal_title:Obstetrics and gynecology
pub_type: 共识发展会议,杂志文章
doi:10.1097/AOG.0000000000001706
更新日期:2016-10-01 00:00:00
abstract::Two patients with severe postpartum hemorrhage refused blood product transfusion for religious reasons. The patients' hemoglobin level had dropped to 3.0% or less after operative intervention, and the cardiac indexes on transfer to the tertiary care center were 8.0 and 7.3 L/minute per m2, respectively. Each received ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract::Sixty-two patients with primary amenorrhea were retrospectively categorized into 4 groups: 1) breast development absent and uterus present (29 patients), 2) breast development present and uterus absent (9 patients), 3) both breast development and uterus absent (2 patients), and 4) both breast development and uterus pr...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1981-06-01 00:00:00
abstract:OBJECTIVE:To assess the influence of several maternal and neonatal variables on the recurrence of gestational diabetes mellitus. METHODS:A retrospective review was conducted on 90 of our patients whose index pregnancy was complicated by gestational diabetes mellitus and whose subsequent pregnancy was also managed at o...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-11-01 00:00:00
abstract::The Eunice Kennedy Shriver National Institute of Child Health and Human Development held a workshop on September 18-19, 2006, to summarize the available evidence on the role and performance of current fetal imaging technology and to establish a research agenda. Ultrasonography is the imaging modality of choice for pre...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000318871.95090.d9
更新日期:2008-07-01 00:00:00