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, large loop excision of the transformation zone, or cold knife cone and subsequently delivered at our hospital were identified with electronic databases. Variables considered as possible confounders included maternal race, age, marital status, payor status, years of education, self-reported tobacco use, history of preterm delivery, and dimensions of cone specimen. RESULTS:Conization was not associated with preterm birth or any subtypes of preterm birth. Among women who underwent conization, those with a subsequent preterm birth had a shorter conization-to-pregnancy interval (337 days) than women with a subsequent term birth (581 days) (P=.004). The association between short conization-to-pregnancy interval and preterm birth remained significant when controlling for confounders including race and cone dimensions. The effect of short conization-to-pregnancy interval on subsequent preterm birth was more persistent among African Americans when compared with white women. CONCLUSION:Women with a short conization-to-pregnancy interval are at increased risk for preterm birth. Women of reproductive age who must have a conization procedure can be counseled that conceiving within 2 to 3 months of the procedure may be associated with an increased risk of preterm birth. LEVEL OF EVIDENCE:II.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Himes KP,Simhan HNdoi
10.1097/01.AOG.0000251497.55065.74subject
Has Abstractpub_date
2007-02-01 00:00:00pages
314-9issue
2 Pt 1eissn
0029-7844issn
1873-233Xpii
109/2/314journal_volume
109pub_type
杂志文章abstract：OBJECTIVE:A multicenter, randomized placebo-controlled trial among women with singleton pregnancies and a history of spontaneous preterm birth found that weekly injections of 17 alpha-hydroxyprogesterone caproate (17P), initiated between 16 and 20 weeks of gestation, reduced preterm birth by 33%. The current study esti...
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：10.1097/01.AOG.0000150560.24297.4f
更新日期：2005-02-01 00:00:00
abstract：:This project was designed to determine if the presence of fibrin degradation products (FDP) in the blood are of value in the preoperative evaluation of patients with pelvic masses. This study comprised 120 consecutive patients who were evaluated for a diagnosis of pelvic mass, ovarian cyst, or ovarian carcinoma. A blo...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1978-11-01 00:00:00
abstract：:A review of 540 patients evaluated by the Gynecologic Colposcopy Clinic for abnormal cervical cytology revealed that 372 (68.9%) had cervical intraepithelial neoplasia (CIN), microinvasive carcinoma, or frank invasive carcinoma. The repeat cytologic smear taken before biopsy was falsely negative in 26.4%. An endocervi...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-198309000-00016
更新日期：1983-09-01 00:00:00
abstract：:The incidence of cervical cancer in the United States has decreased more than 50% in the past 30 years because of widespread screening with cervical cytology. In 1975, the rate was 14.8 per 100,000 women. By 2008, it had been reduced to 6.6 per 100,000 women. Mortality from the disease has undergone a similar decrease...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,实务指引
doi：10.1097/aog.0b013e318277c92a
更新日期：2012-11-01 00:00:00
abstract：:Spontaneous preterm birth is a syndrome with many causes and thus unresponsive to a single intervention. It logically follows that patients with a prior spontaneous preterm birth are a heterogeneous group unlikely to respond equally to a single preventive intervention such as 17-α hydroxyprogesterone caproate. Further...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001618
更新日期：2016-10-01 00:00:00
abstract：:Preterm birth is the leading cause of neonatal mortality and the most common reason for antenatal hospitalization (1-4). In the United States, approximately 12% of all live births occur before term, and preterm labor preceded approximately 50% of these preterm births (5, 6). Although the causes of preterm labor are no...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001260
更新日期：2016-01-01 00:00:00
abstract：BACKGROUND:Intravascular fetal transfusion is an important therapeutic advance but is associated with several complications. Regression of an umbilical artery associated with transfusion is rare. CASE:A case of red blood cell alloimmunization managed by serial transfusions was complicated by functional loss of an umbi...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(98)00502-x
更新日期：1999-05-01 00:00:00
abstract：OBJECTIVE:To determine the association between pretreatment platelet count and survival in women with stage IB cervical cancer. METHODS:Clinical records were reviewed for 219 women with stage IB cervical cancer treated by radical hysterectomy from 1971-1984. Univariate and multivariate analyses were performed to ident...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：OBJECTIVE:To evaluate the cumulative probability of regret after tubal sterilization, and to identify risk factors for regret that are identifiable before sterilization. METHODS:We used a prospective, multicenter cohort study to evaluate the cumulative probability of regret within 14 years after tubal sterilization. P...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/s0029-7844(98)00539-0
更新日期：1999-06-01 00:00:00
abstract：:Over a 63-month period beginning January 1, 1977, 258 infants with birth weights of 500-999 g were born alive at one tertiary perinatal center; 170 were offered full intensive care. The mothers of 67 (39.4%) of these 170 infants had been given betamethasone antenatally to accelerate fetal lung maturation. Of the 67 in...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1989-05-01 00:00:00
abstract：OBJECTIVE:To examine the effect of prenatal care with and without drug rehabilitation on perinatal outcome in cocaine-using women. METHODS:Cocaine-exposed pregnancies of 905 human immunodeficiency virus (HIV)-negative women were frequency matched (ratio 6:1) and compared with 150 nonusers. Cocaine subgroups consisted ...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/s0029-7844(98)00202-6
更新日期：1998-08-01 00:00:00
abstract：:In this study, the concepts of decision theory have been applied to a clinical obstetric controversy--the management of the selected mature breech presentation. We have reviewed in detail the literature published since 1974 and estimated the probabilities of various outcomes after different treatment strategies. We co...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,评审
doi：
更新日期：1987-06-01 00:00:00
abstract：:Mental health disorders in adolescence are a significant problem, relatively common, and amenable to treatment or intervention. Obstetrician-gynecologists who see adolescent patients are highly likely to see adolescents and young women who have one or more mental health disorders. Some of these disorders may interfere...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,实务指引
doi：10.1097/AOG.0000000000002153
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVE:Bacterial vaginosis is a common infectious disorder. Although known since ancient times, little progress has occurred in identifying causal factors. Our aims were to study the bacterial community structure and the spatial organization of microbiota on the epithelial surfaces of vaginal biopsy specimens. METH...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000183594.45524.d2
更新日期：2005-11-01 00:00:00
abstract：:A 19-year-old phenotypic female with primary amenorrhea and 45X,0/46X,Y chromosomal mosaicism was found to have asymmetrical gonadal dysgenesis. Her lack of virilization precludes her precise categorization in the current nomenclature of gonadal dysgenesis and she is considered a unique variant of the syndrome of mixe...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1977-10-01 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：OBJECTIVE:To evaluate the pharmacokinetics of tranexamic acid after oral administration to postpartum women. METHODS:We conducted a single-center pharmacokinetic study at Teaching Hospital-Jaffna, Sri Lanka, on 12 healthy postpartum women who delivered vaginally. After oral administration of 2 g of immediate-release t...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1097/AOG.0000000000003750
更新日期：2020-04-01 00:00:00
abstract：:Mothers of children with Down syndrome were surveyed by questionnaire concerning their attitudes about amniocentesis, prenatal genetic counseling, and abortion. Of the 101 who responded, 40 had borne children after giving birth to a child with Down syndrome. Half had amniocentesis in subsequent pregnancies but only ha...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1986-08-01 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 clinical characteristics of women with endometriosis-associated intraperitoneal cancers, to assess differences based on the relationship of the cancer to the endometriosis, and to assess factors associated with survival. METHODS:A search of medical records at The University of Texas M. D. Anders...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(02)02149-x
更新日期：2002-10-01 00:00:00
abstract：OBJECTIVE:To compare lamellar body counts with the lecithin/sphingomyelin ratio and phosphatidylglycerol analysis in terms of assessment of risk of respiratory distress syndrome (RDS). METHODS:Lamellar body counts, lecithin-sphingomyelin ratios (L/Ss), and phosphatidylglycerol levels were assessed in 1611 amniotic flu...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/s0029-7844(00)01133-9
更新日期：2001-02-01 00:00:00
abstract：:Intrauterine retention of fetal bone is a rare complication of abortion that can cause secondary infertility by an unknown mechanism. We report such a case in which menstrual fluid prostanoids were measured to elucidate the possible pathophysiology. The pattern of prostanoid increases was similar to that seen in intra...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-03-01 00:00:00
abstract：OBJECTIVE:To determine predictors of fistula repair outcomes 3 months postsurgery. METHODS:We conducted a multicountry prospective cohort study between 2007 and 2010. Outcomes, measured 3 months postsurgery, included fistula closure and residual incontinence in women with a closed fistula. Potential predictors include...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1097/AOG.0b013e31826579e8
更新日期：2012-09-01 00:00:00
abstract：OBJECTIVE:Preoperative evaluation for pregnancy at our institution lacked standardization among individual health care providers and surgical services. This pilot project aimed to improve assessment for pregnancy before scheduled outpatient gynecologic surgical procedures. The Pregnancy Reasonably Excluded Guide incorp...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000002917
更新日期：2018-11-01 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：:The reliability of intrauterine pressure measurements was studied by placing two catheters in the same uterus in women in labor. Nineteen parturients were studied, five with two Intran I catheters in different pockets of amniotic fluid, five with two Intran II catheters in different pockets, and nine with two Intran I...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1991-11-01 00:00:00
abstract：OBJECTIVE:To determine risk factors for pregnancy after tubal sterilization with bipolar electrocoagulation. METHODS:A total of 2267 women who had bipolar electrocoagulation were followed for up to 8 to 14 years as part of a multicenter, prospective, cohort study conducted in medical centers in nine United States citi...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/s0029-7844(99)00316-6
更新日期：1999-08-01 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：:The hemodynamic effects of intravenously infused dihydralazine (incremental doses up to 125 micrograms per minute during 60 minutes) were studied in ten women with acute or superimposed severe preeclampsia. The intervillous and umbilical vein blood flow were measured before and during dihydralazine infusion with 133Xe...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
abstract：:During a five-year period, 2815 patients undergoing 5685 fetal heart rate (FHR) tests produced 147 positive contraction stress tests. Baseline FHR patterns were considered reactive if three or more accelerations occurred during 30 minutes of the contraction stress test and nonreactive if fewer or no accelerations were...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1984-04-01 00:00:00
