Abstract：
:Apgar scores are used routinely to assess early neonatal status, but are less accurate in the preterm neonate because of developmental immaturity. Attention has been directed to umbilical cord gases as a method of neonatal evaluation. Using a retrospective chart review of all viable preterm births (24-36 weeks' gestation) between January 1986 and December 1989, we tabulated the umbilical cord gas indices of these infants. Fetuses with lethal congenital anomalies and those with abnormal heart rate tracings on admission were excluded from the data base, leaving 1872 infants. Cord arterial blood gas values were available for analysis in 74.4% of cases and cord venous gas values in 81.8%. The mean (+/- standard deviation [SD]) arterial and venous umbilical cord blood gas values for the preterm infants, were, respectively: pH, 7.26 +/- 0.08 and 7.33 +/- 0.07; oxygen pressure, 19.0 +/- 7.9 and 29.2 +/- 9.7 mmHg; carbon dioxide pressure, 53.0 +/- 10.0 and 43.4 +/- 8.3 mmHg; bicarbonate, 24.0 +/- 2.3 and 22.8 +/- 2.1 mEq/L; and base excess, -3.2 +/- 2.9 and -2.6 +/- 2.5 mEq/L. Acidemia was defined statistically as 2 SDs or more below the population mean. The incidence of 5-minute Apgar scores below 7 in the preterm infants was 8.5% and within this group, 17.8% were acidemic (arterial pH 7.10 or lower). More than 82% of neonates with 5-minute Apgar scores less than 7 had normal umbilical cord blood gases. There was no significant difference in umbilical arterial blood gas values between preterm infants and 1924 term deliveries at our institution between 1986-1988.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Dickinson JE,Eriksen NL,Meyer BA,Parisi VMsubject
Has Abstractpub_date
1992-04-01 00:00:00pages
575-8issue
4eissn
0029-7844issn
1873-233Xjournal_volume
79pub_type
杂志文章abstract：OBJECTIVE:Preeclampsia often complicates pregnancies after maternal kidney transplantation. We aimed to assess whether preeclampsia is associated with kidney function decline either during the pregnancy or in the long term. METHODS:We performed an international multicenter retrospective cohort study. Renal function at...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1097/AOG.0000000000002404
更新日期：2018-01-01 00:00:00
abstract：:Eleven patients with twin pregnancies were identified as having twin-twin transfusion syndrome on the basis of like-sex twins with monochorionic placentation and umbilical venous blood hemoglobin differences exceeding 50 g/L at delivery. Umbilical artery velocity-time waveform studies had been performed in these pregn...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-12-01 00:00:00
abstract：:Methods to prevent perineal trauma during childbirth include avoiding episiotomy and forceps delivery and slowing delivery of the head to allow the perineum time to stretch. Each intervention can lengthen the second stage of labor and change the biophysical stresses on infants and the pelvic floor. Available evidence ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(99)00609-2
更新日期：2000-04-01 00:00:00
abstract：:The prenatal diagnosis of anencephaly and spina bifida (neural tube defect, NTD) through amniotic fluid analysis for alpha-fetoprotein (AFP) is gradually gaining clinical recognition. AFP concentrations were determined in 237 amniotic fluids from normal pregnancies ranging between 7 and 42 weeks of gestation. A steady...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1976-02-01 00:00:00
abstract：:Twenty-seven patients with the diagnosis of primary carcinoma of the vagina were treated by definitive radiotherapy. Twenty-three patients received a combination of external and interstitial iridium-192 implant irradiation and four patients received only interstitial irradiation. Twenty-one patients had squamous cell ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-198309000-00021
更新日期：1983-09-01 00:00:00
abstract：:A modified CEA-Roche kit was used to determine the pretreatment value of carcinoembryonic antigen (CEA) in patients with intraepithelial neoplasia and invasive squamous cell carcinoma of the cervix. A positive correlation between tumor volume and CEA levels was found in patients with invasive disease, and patients wit...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-197805000-00004
更新日期：1978-05-01 00:00:00
abstract：:The Perinatal Quality Foundation and the American College of Medical Genetics and Genomics, in association with the American College of Obstetricians and Gynecologists, the Society for Maternal-Fetal Medicine, and the National Society of Genetic Counselors, have collaborated to provide education for clinicians and lab...
journal_title：Obstetrics and gynecology
pub_type： 社论,实务指引
doi：10.1097/AOG.0000000000000666
更新日期：2015-03-01 00:00:00
abstract：:Human trafficking is a widespread problem with estimates ranging from 14,000 to 50,000 individuals trafficked into the United States annually. This hidden population involves the commercial sex industry, agriculture, factories, hotel and restaurant businesses, domestic workers, marriage brokers, and some adoption firm...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e3182310d06
更新日期：2011-09-01 00:00:00
abstract：OBJECTIVE:To compare the efficacy of extra-amniotic saline solution infusion plus an intracervical Foley catheter balloon versus 2.85 mg prostaglandin (PG) E2 vaginal gel in ripening the cervix, inducing labor, and achieving vaginal delivery in patients at term with an unfavorable cervix. METHODS:A randomized study of...
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：1993-08-01 00:00:00
abstract：:Twenty nonpregnant women with condylomata acuminata of the vagina were studied to assess the effectiveness of weekly topical 5-fluorouracil application. All patients were instructed to insert an applicator one-third full of 5% 5-fluorouracil cream (approximately 1.5 g) deeply into the vagina at bedtime once each week ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1987-07-01 00:00:00
abstract：OBJECTIVE:To assess the association of a first-trimester subchorionic hematoma with pregnancy loss in women with singleton pregnancies. METHODS:We conducted a retrospective cohort study of all women with singleton pregnancies presenting for prenatal care before 14 weeks of gestation over a 3-year period at a single ob...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000003360
更新日期：2019-08-01 00:00:00
abstract：:Several authorities have recommended cesarean section for all intrapartum breech presentations. The present study documents that judiciously selected fetuses at term in breech presentation may be safely delivered vaginally by a selective management protocol that requires cesarean section when mandated criteria are not...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1980-12-01 00:00:00
abstract：UNLABELLED:ōk--q----_xD-xD whether maternal antenatal therapy with vitamin K and phenobarbital prevents intracranial hemorrhage in premature newborns. METHODS:Women at high risk for spontaneous or indicated premature delivery before 34 weeks' gestation were randomly assigned to receive either placebo or vitamin K and ...
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)00091-5
更新日期：1995-07-01 00:00:00
abstract：OBJECTIVE:To determine reproductive outcomes in women with congenital uterine anomalies detected incidentally by three-dimensional ultrasound. METHODS:We studied 1089 women with no history of infertility or recurrent miscarriage who were seen for a transvaginal ultrasound scan. They were screened for uterine abnormali...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(01)01599-x
更新日期：2001-12-01 00:00:00
abstract：BACKGROUND:Pulmonary sequestration is not believed to be familial. We report two male infants with this anomaly who were born to the same parents. CASES:The prenatal diagnosis of pulmonary sequestration was made in a woman's two consecutive pregnancies by demonstrating systemic arterial supply to an echogenic mass loc...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1996-05-01 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：:A fiberoptic colposcope was converted through minor alterations into an instrument suitable for use in gynecologic microsurgery. Magnification up to 24x may be obtained, and the extreme mobility, price consideration, and reduction in space at the operating table make it an attractive alternative to a bulky, expensive ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1979-10-01 00:00:00
abstract：OBJECTIVE:Over-the-counter vaginal lubricants have been shown to negatively affect in vitro sperm motility. The objective of this study was to estimate the effect of vaginal lubricant use during procreative intercourse on natural fertility. METHODS:Women aged 30-44 years with no history of infertility who had been try...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e31825b87ae
更新日期：2012-07-01 00:00:00
abstract：BACKGROUND:Diphallia poses several surgical, psychological, and esthetic issues. Currently, diphallia is only diagnosed after birth. CASE:We present a true diphallia in one fetus of dichorionic twins noted at 23 weeks of gestation. In this fetus, two phallus-like protrusions and a bifid scrotum, as well as a duplicate...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000000327
更新日期：2014-08-01 00:00:00
abstract：OBJECTIVE:To identify metabolic and obstetric risk factors associated with hypertension after preeclampsia. METHODS:We analyzed demographic and clinical data from a postpartum screening (blood pressure, microalbuminuria and fasting plasma levels of glucose, insulin, and lipid profile) from 683 primiparous women with a...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e31825f21ff
更新日期：2012-08-01 00:00:00
abstract：OBJECTIVE:To examine the relationship between an obstetrician's delivery volume and a patient's risk for cesarean delivery. METHODS:This retrospective cohort study examined patient-level and obstetrician-level data between 2000 and 2012 at a large academic hospital. All laboring patients who delivered viable, liveborn...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000000473
更新日期：2014-10-01 00:00:00
abstract：:A case of gonococcemia in pregnancy in which the patient presented with the classic clinical manifestations of gonococcemia--cutaneous lesions, arthritis, and possibly pericarditis--is reported. A review of the literature reveals a dramatic increase in incidence of gonorrhea and the increasing importance of the compli...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1976-10-01 00:00:00
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：:In a patient with Nelson's syndrome, elevated peripheral concentrations of androgens usually associated with neoplasm prompted ovarian vein catheterization. Androgen excess was limited to the right ovary. However, laparotomy revealed bilateral multiple paraovarian nodules with histologic appearance of adrenocortical t...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1988-06-01 00:00:00
abstract：OBJECTIVE:To describe the process involved in using the World Wide Web to coordinate a randomized, multicenter international trial of treatment for twin-twin transfusion syndrome. METHOD:A Web site was designed by members of the research team, a Web consultant, and a senior computer programmer. The original intent was...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/s0029-7844(00)00978-9
更新日期：2000-10-01 00:00:00
abstract：OBJECTIVE:To determine whether outpatient administration of intracervical prostaglandin (PG) E2 gel decreases the interval to delivery and duration of labor. METHODS:A randomized, double-blind, placebo-controlled trial compared the intracervical placement of 0.5 mg PGE2 gel with placebo in 61 pregnant women at 38 week...
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(99)00244-6
更新日期：1999-07-01 00:00:00
abstract：OBJECTIVE:Adverse fetal heart rate (FHR) changes occur frequently during the first 30 minutes after epidural analgesia. The aim of this study was to estimate whether intravenous administration of ephedrine during induction of epidural analgesia can reduce the frequency of adverse FHR changes. METHODS:We prospectively ...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/01.AOG.0000146281.05275.73
更新日期：2004-12-01 00:00:00
abstract：OBJECTIVE:To assess the changes in the subpopulations of lymphocytes and in lymphocyte mitogenic activity in women with endometriosis receiving GnRH-agonist treatment. METHODS:Twenty-six women with advanced endometriosis from the National Cheng Kung University Medical College were studied. Each received a total of six...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/s0029-7844(97)00145-2
更新日期：1997-06-01 00:00:00
abstract：:The balance between relaxin and prolactin has been suggested to be significant in the control of uterine activity during pregnancy. The current study was designed to determine the effect of rat prolactin on rat uterine horn segment contractility and its interaction with relaxin. Rat uterine segments mounted on a smoot...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1984-07-01 00:00:00
abstract：:The pregnancy of a woman with Friedreich ataxia was complicated by the onset of preterm labor and preeclampsia. Administration of magnesium sulfate (MgSO4.7H2O) in the usual intravenous dosage resulted in the dramatic development of profound motor weakness and respiratory distress. Magnesium acts to antagonize the act...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-11-01 00:00:00
