Abstract：
OBJECTIVE:To analyze neonatal mortality and morbidity rates at 34, 35, and 36 weeks of gestation compared with births at term over the past 18 years at our hospital and to estimate the magnitude of increased risk associated with late preterm births compared with births later in gestation. METHODS:We performed a retrospective cohort study of births at our hospital over the past 18 years. The study included all liveborn singleton infants between 34 and 40 weeks of gestation and without anomalies that were delivered to women who received prenatal care in our hospital system. Neonatal outcomes for late preterm births were compared with those for infants delivered at 39 weeks. RESULTS:Late preterm singleton live births constituted approximately 9% of all deliveries at our hospital and accounted for 76% of all preterm births. Late preterm neonatal mortality rates per 1,000 live births were 1.1, 1.5, and 0.5 at 34, 35, and 36 weeks, respectively, compared with 0.2 at 39 weeks (P<.001). Neonatal morbidity was significantly increased at 34, 35, and 36 weeks, including ventilator-treated respiratory distress, transient tachypnea, grades 1 or 2 intraventricular hemorrhage, sepsis work-ups, culture-proven sepsis, phototherapy for hyperbilirubinemia, and intubation in the delivery room. Approximately 80% of late preterm births were attributed to idiopathic preterm labor or ruptured membranes and 20% to obstetric complications. CONCLUSION:Late preterm births are common and associated with significantly increased neonatal mortality and morbidity compared with births at 39 weeks. Preterm labor was the most common cause (45%) for late preterm births. LEVEL OF EVIDENCE:II.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
McIntire DD,Leveno KJdoi
10.1097/01.AOG.0000297311.33046.73subject
Has Abstractpub_date
2008-01-01 00:00:00pages
35-41issue
1eissn
0029-7844issn
1873-233Xpii
111/1/35journal_volume
111pub_type
杂志文章abstract：:In a low-prevalence population for sexually transmitted disease, accurate methods of identifying Neisseria gonorrhoeae infections are of paramount importance. Tests with low sensitivity are of concern to each practitioner. Of no less concern, however, are the possible social and emotional consequences of a false-posit...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1987-05-01 00:00:00
abstract：OBJECTIVE:To compare the outcomes of women with stage III uterine cancer treated with chemotherapy alone, external beam radiation alone, and combination chemotherapy and radiation. METHODS:The National Cancer Database was used to identify women with stage III endometrioid, serous, and clear cell uterine cancer treated...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000003287
更新日期：2019-07-01 00:00:00
abstract：:From 1973 to 1983, cytogenetic analyses were performed on blood samples from 144 couples referred because of two or more spontaneous abortions. Any couple with abnormal offspring in addition to the miscarriages was excluded from the study. Two balanced translocations were found in the 288 individuals examined (0.7%). ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1984-02-01 00:00:00
abstract：:Torulopsis glabrata is a yeast of low virulence and commensal within the female genitourinary tract. The first case of congenital infection with Torulopsis glabrata was reported in 1980. An additional example of perinatal Torulopsis infection which is associated with maternal sickle cell anemia is reported. The most c...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1983-03-01 00:00:00
abstract：OBJECTIVE:To evaluate the efficacy of an integrated multiple risk intervention, delivered mainly during pregnancy, in reducing such risks (cigarette smoking, environmental tobacco smoke exposure, depression, and intimate partner violence) postpartum. METHODS:Data from this randomized controlled trial were collected pr...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1097/AOG.0b013e3181834b10
更新日期：2008-09-01 00:00:00
abstract：BACKGROUND:Spectral Doppler ultrasound, an important diagnostic tool for the functional assessment of various organs, as yet has no major use in prenatal diagnosis due to the conventional technique's limitation of analyzing only one site at a time. Our aim was to develop a new modality that shows simultaneous studies o...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：
更新日期：1998-08-01 00:00:00
abstract：:Vaginal hysterectomy for sterilization was performed on 115 patients. The Heaney technique was used by nine gynecologists, using lidocaine and adrenaline. The average age of patients was 32.2 years and average parity 3.2. Significant unsuspected pathology was found after surgery in 21 patients. One postoperative d...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1972-05-01 00:00:00
abstract：:Because the rate of malignancies in young women exposed in utero to diethylstilbesterol (DES) is low, appropriate population screening methods have not been established. A case is presented that is believed to represent the first reported instance of a DES-exposed daughter who developed clear cell adenocarcinoma of th...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1979-03-01 00:00:00
abstract：:A new technique is presented for funipuncture under ultrasound guidance using a biopsy guide and a 20/25-gauge needle combination. The 20-gauge needle was used for uterine entry and the 25-gauge needle for the actual cord puncture. The method was used for sampling fetal blood in 262 pregnancies with 264 fetuses (two s...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1989-03-01 00:00:00
abstract：OBJECTIVE:The relationship between the specialized nurses of the Labor and Delivery Suite and the medical students who are rotating through the unit as clinical clerks has traditionally been a poor one. The objective of this project was to develop a program which pairs medical students with nurse preceptors to improve ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000223202.04393.2a
更新日期：2006-07-01 00:00:00
abstract：:This month we focus on current research in human papillomavirus-related lower anogenital tract disease prevention and screening. Dr. Boardman discusses four recent publications, which are concluded with a "bottom line" that is the take-home message. The complete reference for each can be found in on this page, along w...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001081
更新日期：2015-10-01 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：OBJECTIVE:To determine whether high levels of serum alpha-fetoprotein (AFP) predict increased risk of adverse pregnancy outcomes, including preterm birth (before 37 weeks), preterm birth occurring at or before 28 weeks, small for gestational age (SGA) infant, preeclampsia, and placental abnormalities, and to determine ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0029-7844(96)00310-9
更新日期：1996-11-01 00:00:00
abstract：:A review of 25 patients with more than 1 rubella titer by hemagglutination-inhibition testing revealed 3 patients with high positive titers that were reported to be negative in subsequent pregnancies. None of the patients had received the rubella vaccine. Because the sensitivity and reliability of hemagglutination-inh...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1979-08-01 00:00:00
abstract：:Estrogen treatment of postmenopausal women has been suggested to improve mood and psychological function. However, this remains controversial because previous studies involved heterogeneous groups, were not double blind, and included women who were also experiencing somatic symptoms that were relieved by estrogen. A r...
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：1991-12-01 00:00:00
abstract：OBJECTIVE:To challenge the hypothesis that discordant growth is a normal variation by relating birth weight discordance to total twin birth weight. METHODS Among 12,565 Israeli live-born twin pairs (1993-98), we compared total twin birth weight decile, the frequencies of three levels of discordance in the general popul...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(00)01079-6
更新日期：2000-12-01 00:00:00
abstract：OBJECTIVE:To compare stage distribution, tumor characteristics, and survival outcome in pregnancy-associated and non-pregnancy-associated breast cancer, and to evaluate pregnancy as a risk factor for mortality in breast cancer. METHODS:The California Cancer Registry (1991-1999) was linked with the California Patient D...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e31817c4ebc
更新日期：2008-07-01 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：:Cellular immunity of the delayed type in women with intraepithelial carcinoma (carcinoma is situ) of the vulva was investigated by an in vitro assay of mitogen-induced lymphocyte transformations. Test results from 9 patients were compared to those of 23 age-matched control subjects. Lymphocyte transformation responses...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1978-09-01 00:00:00
abstract：OBJECTIVE:To determine whether women who are poorly nourished in early pregnancy, as determined by triceps skinfold thickness, or who have poor pregnancy weight gain have offspring with higher blood pressure (BP). METHODS:We evaluated 296 11-year-old children born to women who had taken part in a study of nutrition in...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(97)00581-4
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND:Opportunistic salpingectomy at the time of hysterectomy is currently recommended to reduce the lifetime risk of ovarian cancer. The vaginal route is least invasive, but surgeons sometimes may choose to perform this procedure laparoscopically or robotically when anticipating adnexal surgery as a result of lim...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000002746
更新日期：2018-08-01 00:00:00
abstract：OBJECTIVE:To estimate the incidence of breast carcinoma and survival in patients younger than 25 years old, and to describe presenting clinical signs and symptoms of breast cancer in this age group. METHODS:A population-based descriptive study and case review in Olmsted County, Minnesota, was conducted using the resou...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e31822a69db
更新日期：2011-09-01 00:00:00
abstract：OBJECTIVE:To describe the outcomes of intended home birth in the practices of certified nurse-midwives. METHODS:Twenty-nine US nurse-midwifery practices were recruited for the study in 1994. Women presenting for intended home birth in these practices were enrolled in the study from late 1994 to late 1995. Outcomes for...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/s0029-7844(98)00182-3
更新日期：1998-09-01 00:00:00
abstract：OBJECTIVE:To study the use of middle cerebral arterial Doppler findings in a group of high-risk fetuses as a predictor of adverse perinatal outcome, including subsequent neurologic handicap. METHODS:A group of very high-risk fetuses was recruited over a 2-year period for study. Weekly fetal biometries and Doppler stud...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0029-7844(96)00062-2
更新日期：1996-06-01 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：OBJECTIVE:To estimate whether the loop electrosurgical excision procedure (LEEP) is associated with an adverse effect on the outcome of subsequent pregnancies. METHODS:A retrospective cohort study was performed. The study group comprised women who had a LEEP in Halifax County between 1992 and 1999 and then had a subse...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000151991.09124.bb
更新日期：2005-02-01 00:00:00
abstract：OBJECTIVE:To determine if systemic processing of pain differs in women with and without dysmenorrhea. METHODS:Twenty-two dysmenorrheic women and 31 nondysmenorrheic women were studied by pain threshold and supra-threshold magnitude estimation to heat stimuli, pain-evoked potentials by laser stimuli, and anxiety scores...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(01)01465-x
更新日期：2001-09-01 00:00:00
abstract：OBJECTIVE:To describe obesity prevention and treatment practices of U.S. obstetrician-gynecologists. METHODS:A cross-sectional survey was mailed to 1,806 practicing members of the American College of Obstetricians and Gynecologists (ACOG) in February-April 2005. RESULTS:Of the 900 respondents who returned questionnai...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000233171.20484.db
更新日期：2006-10-01 00:00:00
abstract：OBJECTIVE:To assess whether primary and secondary vestibulodynia represent different pathologic pathways. METHODS:This was an analysis of archived vestibulectomy specimens from 88 premenopausal women with vestibulodynia (2002-2008). Patient records were reviewed to classify the type of vestibulodynia, duration of symp...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e31821c33dc
更新日期：2011-06-01 00:00:00
abstract：OBJECTIVE:To assess treatment outcomes associated with an obstetric hypertensive emergency quality improvement intervention instituted in a tertiary care women's emergency department. METHODS:We conducted a cohort study of pregnant (20 weeks of gestation or greater) and postpartum (6 weeks of gestation or less) women ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000002809
更新日期：2018-10-01 00:00:00
