Abstract：
OBJECTIVE:To examine whether maternal meal ingestion affects the fetal circulation in uncomplicated pregnancies. METHODS:A simple crossover blinded study was designed for late uncomplicated singleton pregnancies. After overnight fasting, two different maternal meal states were tested. In one state, pregnant women had a standard 600-kcal breakfast at 8 AM (phase A). The other state consisted of maintaining fasting (phase B). Both states were assigned to each woman within 3 days in randomized order. Fetal Doppler studies of the umbilical, middle cerebral, and renal arteries and the descending aorta were performed at 7 AM (the fasting state) and at 10 AM (the fed state or the continuous fasting state). RESULTS:Twenty women underwent the crossover study. Regardless of the maternal meal state, no significant change was observed in the pulsatility index (PI) of either the umbilical artery (n = 20), the middle cerebral artery (n = 19), or the descending aorta (n = 15). However, the PI of the fetal renal artery decreased significantly after maternal meal ingestion (n = 14) (phase A, 2.36 +/- 0.16 versus 2.09 +/- 0.33; P = .021). There was no such change in the PI after prolonged fasting (phase B, 2.44 +/- 0.32 versus 2.39 +/- 0.44; P = .75). CONCLUSION:Fetal renal artery resistance decreased after maternal meal ingestion in normally grown fetuses during late pregnancy. This decrease in the resistance may be associated with increased fetal urine production after maternal meals.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Yasuhi I,Hirai M,Oka S,Nakajima H,Ishimaru Tdoi
10.1016/s0029-7844(97)00281-0subject
Has Abstractpub_date
1997-09-01 00:00:00pages
340-3issue
3eissn
0029-7844issn
1873-233Xpii
S0029-7844(97)00281-0journal_volume
90pub_type
临床试验,杂志文章,随机对照试验abstract：:Adverse outcomes, preventable or otherwise, are a reality of medical care. Most importantly, adverse events affect patients, but they also affect health care practitioners. Disclosing information about adverse events has benefits for the patient and the physician and, ideally, strengthens the patient-physician relatio...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001813
更新日期：2016-12-01 00:00:00
abstract：:This month we focus on current research in maternal heart disease. Dr. Metz discusses four recent publications, which are concluded with a "bottom-line" that is the take-home message. A complete reference for each can be found on on this page along with direct links to abstracts. ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000003037
更新日期：2019-01-01 00:00:00
abstract：OBJECTIVE:To determine if suppressive acyclovir therapy given to term gravidas experiencing a first episode of genital herpes simplex virus (HSV)-infection during pregnancy decreases the need for cesarean delivery for that indication. METHODS:Forty-six pregnant women with first episodes of genital herpes during pregna...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0029-7844(95)00357-6
更新日期：1996-01-01 00:00:00
abstract：:Since 1963 there have been 266 patients with cancer of the uterine fundus at the Medical University of South Carolina. Progestational agents were used to treat 54 but 10 received the drugs for less than 1 month. This report relates to the remaining 44. 34 were treated with Depo-Provera (medroxyprogesterone acetate)...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1974-07-01 00:00:00
abstract：OBJECTIVE:To determine whether early-gestation vaginal bleeding and elevated maternal serum alpha-fetoprotein (MSAFP) are independent risk factors for adverse infant outcomes. METHODS:We conducted a cohort study of 201 women with an elevated MSAFP (at least 2.0 multiples of the median [MOM]) and a second-trimester ult...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1992-11-01 00:00:00
abstract：OBJECTIVE:All national organizations now recommend that women be screened for cervical cancer beginning at age 21 years, regardless of age of sexual initiation; however, studies have shown that providers continue to screen much earlier than recommended. Two federal cancer surveillance systems were used to quantify the ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/aog.0b013e31826e4609
更新日期：2012-11-01 00:00:00
abstract：:Family planning plays a pivotal role in population growth, poverty reduction, and human development. Evidence from the United Nations and other governmental and nongovernmental organizations supports this conclusion. Failure to sustain family planning programs, both domestically and abroad, will lead to increased popu...
journal_title：Obstetrics and gynecology
pub_type： 评论,杂志文章,评审
doi：10.1097/01.AOG.0000287063.32004.23
更新日期：2007-11-01 00:00:00
abstract：OBJECTIVE:To estimate whether higher magnesium levels in umbilical cord blood at delivery are associated with increased total pediatric (fetal + neonatal + postneonatal) mortality. METHODS:During the Magnesium and Neurologic Endpoints Trial, in addition to randomizing mothers having preterm labor into arms containing ...
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(01)01398-9
更新日期：2001-07-01 00:00:00
abstract：OBJECTIVE:To estimate normal ranges for postpartum maternal vital signs. METHODS:We conducted a multicenter prospective longitudinal cohort study in the United Kingdom. We recruited women before 20 weeks of gestation without significant comorbidities and with accurately dated singleton pregnancies. Women recorded thei...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000004239
更新日期：2021-02-01 00:00:00
abstract：OBJECTIVE:To estimate the incidence and identify the risk factors for pelvic organ prolapse repair after hysterectomy. METHODS:We conducted a case-control study. We identified 6,214 women who underwent hysterectomy in our gynecology department from 1982 to 2002. Cases (n=114) were women who required pelvic organ prola...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000278567.37925.4e
更新日期：2007-09-01 00:00:00
abstract：:Primary carcinoma of the fallopian tube is uncommon and is often treated using regimens active in ovarian carcinoma. Evidence is scant that such therapies benefit patients with fallopian tube carcinoma. Between December 1979 and July 1988, we treated 18 patients who had adenocarcinoma of the fallopian tube with the co...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-12-01 00:00:00
abstract：:Blood samples were obtained from 5 women during the menstrual cycle in which they had conceived. Although neither the women nor their physicians were clinically aware that conception had occurred, one or more of the blood specimens from each woman contained human chorionic gonadotropin (hCG), as measured by a specific...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1977-07-01 00:00:00
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：:The vesicovaginal fistula from prolonged obstructed labor is a condition that is no longer seen in the affluent, industrialized world, yet it continues to exist in epidemic proportions in sub-Saharan Africa, where several million women are estimated to suffer from this condition. The unremitting urinary incontinence t...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(02)02498-5
更新日期：2002-12-01 00:00:00
abstract：:Cloacal dysgenesis is a rare anomaly. Fifty cases have been reported in the literature. This condition differs from the usual imperforate anus. The diagnosis, evaluation, and therapeutic management require an understanding of the embryogenesis of the cloaca. The presence at birth of a single interlabial orifice or an ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1977-07-01 00:00:00
abstract：:This report investigates the effect of chorioamnionitis on infant mental and psychomotor development at one year through the prospective study of 698 preterm pregnancies complicated by premature rupture of membranes and managed expectantly without antenatal corticosteroids or tocolytic agents. Ninety-two mothers (13%)...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1987-08-01 00:00:00
abstract：OBJECTIVE:To develop a scoring system to predict the likelihood of vaginal birth in patients undergoing a trial of labor after previous cesarean delivery using factors known at the time of hospital admission. METHODS:Trial of labor was attempted in 5022 patients who were assigned randomly to score derivation and score...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/s0029-7844(97)00531-0
更新日期：1997-12-01 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：OBJECTIVE:To review the experience of women who conceived after developing mastocytosis and who were observed at the National Institutes of Health. METHODS:We reviewed our patient database for the years 1984-1998 to identify women with mastocytosis who had conceived. We then reviewed each woman's record, asked each wo...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(99)00591-8
更新日期：2000-03-01 00:00:00
abstract：OBJECTIVE:To estimate the association of the estrogen and progestin potency of combined oral contraceptive pills (OCPs) with epithelial ovarian carcinoma risk. METHODS:This population-based case-control study included 745 women with incident, histologically confirmed epithelial ovarian carcinoma and 943 controls, matc...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000255664.48970.e6
更新日期：2007-03-01 00:00:00
abstract：OBJECTIVE:To determine the effectiveness of ginger for the treatment of nausea and vomiting of pregnancy. METHODS:Women with nausea and vomiting of pregnancy, who first attended an antenatal clinic at or before 17 weeks' gestation, were invited to participate in the study. During a 5-month period, 70 eligible women ga...
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(00)01228-x
更新日期：2001-04-01 00:00:00
abstract：:Fetal oxytocin contribution to the mother during spontaneous labor was investigated using a specific and sensitive radioimmunoassay to measure oxytocin in blood, amniotic fluid, and urine. In 26 subjects with spontaneous labor and vaginal delivery (Group I) and 18 subjects with cesarean section after labor (Group II),...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1978-08-01 00:00:00
abstract：:A new method to replace fetal membranes that have prolapsed through an incompetent cervix, which includes overfilling of the urinary bladder, was successful in four consecutive patients who presented with this clinical entity. ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1989-09-01 00:00:00
abstract：:The vaginal microbiota has great significance in maintaining vaginal health and protecting the host from disease. Recent advances in molecular techniques and informatics allow researchers to explore microbial composition in detail and to compare the structure of vaginal microbial communities with behavior and health o...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1097/AOG.0000000000001932
更新日期：2017-04-01 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：OBJECTIVE:The aim of this study was to compare the efficacy of intravenous iron to oral iron in the treatment of anemia in pregnancy. METHODS:In this randomized open-label study, 90 women with hemoglobin levels between 8 and 10.5 g/dL and ferritin values less than 13 microg/L received either oral iron polymaltose comp...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1097/01.AOG.0000185260.82466.b4
更新日期：2005-12-01 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：OBJECTIVE:To compare one-year outcomes of primary overlap versus end-to-end repair of the external anal sphincter after acute obstetric anal sphincter injury. METHODS:Women who sustained third-degree (3b = greater than 50% external anal sphincter thickness, 3c = internal sphincter injury) or fourth-degree (including a...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1097/01.AOG.0000218693.24144.bd
更新日期：2006-06-01 00:00:00
abstract：OBJECTIVE:To determine whether the risk for uterine rupture is increased in women attempting vaginal birth after multiple cesarean deliveries. METHODS:We conducted a prospective multicenter observational study of women with prior cesarean delivery undergoing trial of labor and elective repeat operation. Maternal and p...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1097/01.AOG.0000224694.32531.f3
更新日期：2006-07-01 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
