Umbilical coiling index in normal and complicated pregnancies.


OBJECTIVE:To estimate the relation between undercoiling and overcoiling of the umbilical cord and adverse pregnancy outcome. METHODS:Umbilical cords and hospital records of 885 patients were studied in a cross-sectional study design. The umbilical coiling index was determined as the number of complete coils divided by the length of the cord in centimeters, blinded for pregnancy outcome. Obstetric history and pregnancy outcome of each patient were obtained from hospital records, blinded for the umbilical coiling index. Odds ratios and their 95% confidence intervals were calculated to evaluate associations between undercoiling and overcoiling and adverse pregnancy outcome, using multiple logistic regression. RESULTS:Undercoiling (umbilical coiling index below the 10th percentile, using references values from uncomplicated pregnancies) was associated with fetal death (odds ratio [OR] 3.35, 95% confidence interval [CI] 1.48-7.63), spontaneous preterm delivery (OR 2.16, 95% CI 1.34-3.48), trisomies (OR 5.79, 95% CI 2.07-16.24), low Apgar score at 5 minutes (OR 3.14, 95% CI 1.47-6.70), velamentous cord insertion (OR 3.00, 95% CI 1.16-7.76), single umbilical artery (OR 3.68, 95% CI 1.26-10.79), and dextral coiling (OR 1.80, 95% CI 1.02-3.17). Overcoiling (umbilical coiling index above the 90th percentile) was associated with asphyxia (OR 4.16, 95% CI 1.30-13.36), umbilical arterial pH < 7.05 (OR 2.91, 95% CI 1.05-8.09), small for gestational age infants (OR 2.10, 95% CI 1.01-4.36), trisomies (OR 9.26, 95% CI 2.84-30.2), single umbilical artery (OR 8.25, 95% CI 2.60-26.12), and sinistral coiling (OR 4.30, 95% CI 1.52-12.2). CONCLUSION:Undercoiling and overcoiling of the umbilical cord are associated with increased risk for adverse perinatal outcome.


Obstet Gynecol


de Laat MW,Franx A,Bots ML,Visser GH,Nikkels PG




Has Abstract


2006-05-01 00:00:00














  • Human papillomavirus detection in cervical lesions nondiagnostic for cervical intraepithelial neoplasia: correlation with Papanicolaou smear, colposcopy, and occurrence of cervical intraepithelial neoplasia.

    abstract::Human papillomavirus (HPV) is associated with cervical intraepithelial neoplasia (CIN) and carcinomas. The present study involved women who had an abnormal Papanicolaou smear and whose cervix contained acetowhite area(s) that lacked the histologic features of CIN. Sequences homologous to HPV DNA, determined by Souther...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Nuovo GJ,Blanco JS,Leipzig S,Smith D

    更新日期:1990-06-01 00:00:00

  • Non-Hodgkin lymphoma of the puerperal uterus.

    abstract::Non-Hodgkin lymphoma was diagnosed initially in a curettage specimen of a puerperal uterus 3 weeks after normal delivery of a healthy infant. The disease, which probably existed during the last trimester of pregnancy, was classified as clinical stage IVb. Combination chemotherapy resulted in immediate improvement and ...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Roumen FJ,de Leeuw JW,van der Linden PJ,Pannebakker MA

    更新日期:1990-03-01 00:00:00

  • Treatment of stress urinary incontinence due to paravaginal fascial defect.

    abstract::This study supports the thesis that the physical findings of pelvic relaxation, such as cystourethrocele, are the results of isolated defects in the pelvic fascia rather than the results of generalized stretching or attenuation of the supporting structures. The most frequently encountered defect resulting in cystouret...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Richardson AC,Edmonds PB,Williams NL

    更新日期:1981-03-01 00:00:00

  • Endometrial carcinoma: analysis of recurrence in patients treated with a strategy minimizing lymph node sampling and radiation therapy.

    abstract:OBJECTIVE:To determine whether using a treatment strategy minimizing lymph node sampling and radiation therapy compromised outcome in patients with early endometrial carcinoma. METHODS:One hundred three consecutive patients with International Federation of Gynecology and Obstetrics surgical stage I, II, or III endomet...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Kim YB,Niloff JM

    更新日期:1993-08-01 00:00:00

  • Avoiding transmitting identified mutations to offspring using preimplantation genetic diagnosis.

    abstract:BACKGROUND:Preimplantation genetic diagnosis has been used to decrease or avoid the risk of transmitting identified mutations to offspring. CASE:A 29-year-old woman with spondyloepiphyseal dysplasia congenita and her 30-year-old husband with Marfan syndrome underwent in vitro fertilization with preimplantation genetic...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Smith LP,Hughes MR,Thirumoorthi I,Proud VK,Penzias AS

    更新日期:2010-02-01 00:00:00

  • Bilateral tubal pregnancy with vaginal delivery.

    abstract::A 26-year-old woman was admitted with a diagnosis of septic incomplete abortion. Subsequently she was discovered to have bilateral tubal ectopic pregnancies. The right tube was not badly damaged. Its contents were removed by linear salpingotomy and the tube was repaired. Fifteen months later the patient delivered a li...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Foster HM,Lakshin AS,Taylor WF

    更新日期:1982-11-01 00:00:00

  • Patient gender preferences in a large military teaching hospital.

    abstract:OBJECTIVE:To quantify preferences for female providers among obstetric-gynecology patients in a large military teaching hospital in California. METHODS:A questionnaire regarding patient preferences for female provider was distributed to and collected from 1,544 obstetric-gynecology patients over a two-month period. Re...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Lund JD,Rohrer JE,Goldfarb S

    更新日期:2005-04-01 00:00:00

  • Economic analyses in obstetrics and gynecology: a methodologic evaluation of the literature.

    abstract:OBJECTIVE:To evaluate the methodology of the cost-effectiveness and cost-benefit literature in obstetrics and gynecology. DATA SOURCES:We performed a MEDLINE search of the general and subspecialty obstetrics and gynecology journals for the years 1990 through 1996. METHODS OF STUDY SELECTION:Original investigations in...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Smith WJ,Blackmore CC

    更新日期:1998-03-01 00:00:00

  • Committee Opinion No. 650 Summary: Physical Activity and Exercise During Pregnancy and the Postpartum Period.

    abstract::Physical activity in all stages of life maintains and improves cardiorespiratory fitness, reduces the risk of obesity and associated comorbidities, and results in greater longevity. Physical activity in pregnancy has minimal risks and has been shown to benefit most women, although some modification to exercise routine...

    journal_title:Obstetrics and gynecology

    pub_type: 评论,杂志文章



    更新日期:2015-12-01 00:00:00

  • Regional and Racial-Ethnic Differences in Perinatal Interventions Among Periviable Births.

    abstract:OBJECTIVE:To examine whether there are: 1) regional differences in three perinatal interventions that reflect active treatment among periviable gestations and 2) racial-ethnic differences in the receipt of these perinatal interventions after accounting for hospital region. METHODS:We conducted a retrospective study on...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Boghossian NS,Geraci M,Edwards EM,Ehret DEY,Saade GR,Horbar JD

    更新日期:2020-04-01 00:00:00

  • Plasma catecholamines and angiotensin-converting enzyme activity in hypertensive subjects with positive rollover tests.

    abstract::The rollover test is useful in predicting and identifying subjects developing hypertensive disorders of pregnancy. The mechanisms responsible for positive tests are unclear, but a greater release of pressor substances occurring in subjects with positive tests has been proposed. The authors measured and compared heart ...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Lee MI,Todd HM

    更新日期:1984-04-01 00:00:00

  • Perinatal mortality and antepartum risk scoring.

    abstract::A simplified, numerical form for antepartum risk scoring was introduced as a component of the prenatal record for use in all pregancies in a large geographic area under a variety of collection practices. In a population of approximately 1,000,000 with 16,733 deliveries, 19% of the pregnant population scored greater th...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Morrison I,Olsen J

    更新日期:1979-03-01 00:00:00

  • What Is New in Human Papillomavirus-Related Lower Anogenital Tract Disease Prevention and Screening?: Best Articles From the Past Year.

    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


    authors: Boardman LA

    更新日期:2015-10-01 00:00:00

  • T mycoplasma in human reproductive failure.

    abstract::In a study of 50 women of child-bearing age, half of whom had infertility problems, it was demonstrated that the infertile group more commonly yielded Ureaplasma urealyticum on culture (84% versus 60%), had more than twice the recoveries from the endocervical canal than fertile women had (80% verse 36%), and grew a mu...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Graber CD,Creticos P,Valicenti J,Williamson HO

    更新日期:1979-11-01 00:00:00

  • Intracorporeal electromechanical tissue morcellation: a critical review and recommendations for clinical practice.

    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


    authors: Kho KA,Anderson TL,Nezhat CH

    更新日期:2014-10-01 00:00:00

  • Timing of elective repeat cesarean delivery at term and maternal perioperative outcomes.

    abstract:OBJECTIVE:Elective repeat cesarean delivery at 37 or 38 weeks compared with 39 completed weeks of gestation is associated with adverse neonatal outcomes. We assessed whether delivery before 39 weeks is justifiable on the basis of decreased adverse maternal outcomes. METHODS:We conducted a cohort study of women with li...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Tita ATN,Lai Y,Landon MB,Spong CY,Leveno KJ,Varner MW,Caritis SN,Meis PJ,Wapner RJ,Sorokin Y,Peaceman AM,O'Sullivan MJ,Sibai BM,Thorp JM,Ramin SM,Mercer BM,Eunice Kennedy Shriver National Institute of Child Health and Hum

    更新日期:2011-02-01 00:00:00

  • The effect of ephedrine on intrapartum fetal heart rate after epidural analgesia.

    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


    authors: Kreiser D,Katorza E,Seidman DS,Etchin A,Schiff E

    更新日期:2004-12-01 00:00:00

  • Performance of a new DNA probe for the detection of group B streptococcal colonization of the genital tract.

    abstract:OBJECTIVE:To test the performance characteristics of a new DNA probe designed for the rapid identification of heavy colonization of the genital tract with group B streptococci. METHODS:Vaginal and combined vaginal-perianal samples were collected from 193 pregnant women and cultured on colistin-nalidixic acid agar plat...

    journal_title:Obstetrics and gynecology

    pub_type: 临床试验,杂志文章


    authors: Rosa C,Clark P,Duff P

    更新日期:1995-10-01 00:00:00

  • Ovarian cancer screening in women with a family history of breast or ovarian cancer.

    abstract:OBJECTIVE:To evaluate positive predictive values of CA 125 or transvaginal ultrasonography screening for ovarian cancer according to family history of breast or ovarian cancer. METHODS:In the screening arm of a randomized controlled trial of screening compared with usual care, 28,460 women with family history data rec...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章,随机对照试验


    authors: Lacey JV Jr,Greene MH,Buys SS,Reding D,Riley TL,Berg CD,Fagerstrom RM,Hartge P

    更新日期:2006-11-01 00:00:00

  • Intrapartum uterine rupture and dehiscence in patients with prior lower uterine segment vertical and transverse incisions.

    abstract:OBJECTIVE:To determine whether gravidas with prior low vertical uterine incision(s) are at a higher risk for uterine rupture during a trial of labor after cesarean delivery than women with prior low transverse uterine incision(s). METHODS:The medical records of women undergoing a trial of labor after prior cesarean de...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Shipp TD,Zelop CM,Repke JT,Cohen A,Caughey AB,Lieberman E

    更新日期:1999-11-01 00:00:00

  • Acute intermittent porphyria in pregnancy.

    abstract::A 27-year-old, previously healthy normotensive woman was admitted for hyperemesis gravidarum and treated with intravenous fluids and metoclopramide. Thereafter, a neuropsychiatric syndrome developed, with acute asymmetrical axonal motor-sensory polyneuropathy and marked anxiety, depression, irritability, and memory an...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Milo R,Neuman M,Klein C,Caspi E,Arlazoroff A

    更新日期:1989-03-01 00:00:00

  • Second-trimester ultrasound markers for detection of trisomy 21: which markers are best?

    abstract:OBJECTIVE:To investigate which second-trimester ultrasound markers for aneuploidy are the most diagnostically efficient in detecting fetal trisomy 21. METHODS:All second-trimester genetic sonograms performed since November 1, 1992 for women at increased risk for fetal trisomy 21 were analyzed retrospectively. Statisti...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Vintzileos AM,Campbell WA,Guzman ER,Smulian JC,McLean DA,Ananth CV

    更新日期:1997-06-01 00:00:00

  • Risk of large-for-gestational-age newborns in women with gestational diabetes by race and ethnicity and body mass index categories.

    abstract:OBJECTIVE:To compare the prevalence of large-for-gestational-age (LGA) newborns across categories of body mass index (BMI) in five racial and ethnic groups. METHODS:This cohort study examined 7,468 women with gestational diabetes mellitus (GDM) who delivered a live newborn between 1995 and 2006 at Kaiser Permanente No...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Sridhar SB,Ferrara A,Ehrlich SF,Brown SD,Hedderson MM

    更新日期:2013-06-01 00:00:00

  • The clinical meaning of a cervical intraepithelial neoplasia grade 1 biopsy.

    abstract:OBJECTIVE:To determine whether the diagnosis of cervical intraepithelial neoplasia (CIN) grade 1 increases the risk of CIN 3 above what is observed for human papillomavirus (HPV) infection. METHODS:Using data from the atypical squamous cells of undetermined significance (ASCUS) and low-grade squamous intraepithelial l...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章,多中心研究


    authors: Castle PE,Gage JC,Wheeler CM,Schiffman M

    更新日期:2011-12-01 00:00:00

  • The Most Commonly Dispensed Prescription Medications Among Pregnant Women Enrolled in the U.S. Medicaid Program.

    abstract:OBJECTIVE:To characterize the 20 most common prescription medications and the 10 most common prescription medications classified in the former U.S. Food and Drug Administration categories D or X dispensed to pregnant women enrolled in the U.S. Medicaid program. METHODS:We conducted a cohort study of 1,106,757 pregnant...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Palmsten K,Hernández-Díaz S,Chambers CD,Mogun H,Lai S,Gilmer TP,Huybrechts KF

    更新日期:2015-09-01 00:00:00

  • 13CO2 isotopic laser used through the operating channel of laser laparoscopes: a comparative study of power and energy density losses.

    abstract:OBJECTIVE:To evaluate the power transmission, spot size, power density, and energy density of a new isotopic carbon dioxide (13CO2) laser compared with a conventional CO2 laser. METHODS:Experiments were performed in a laboratory using a conventional CO2 laser and an isotopic 13CO2 laser. Two laparoscopes with 5-mm and...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Adamson GD,Reich H,Trost D

    更新日期:1994-05-01 00:00:00

  • Diagnosis of placental abscess in association with recurrent maternal bacteremia in a twin pregnancy.

    abstract:BACKGROUND:Placental abscess formation is rarely recognized prenatally. We present a case detected ultrasonographically that developed from a central line infection and caused recurrent maternal bacteremia. CASE:A young woman with a 21-week twin gestation presented with recurrent fevers. She had received treatment for...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Meirowitz NB,Fleischer A,Powers M,Hippolyte F

    更新日期:2006-02-01 00:00:00

  • Maternal hydration increases amniotic fluid index in women with normal amniotic fluid.

    abstract:OBJECTIVE:To test the hypothesis that maternal oral hydration would increase the amniotic fluid (AF) index in pregnancies with normal AF. METHODS:Forty women with a normal AF index (7.0-24.0 cm) were randomized to either the control or hydration group. Women in the hydration group drank 2 L of water and returned for t...

    journal_title:Obstetrics and gynecology

    pub_type: 临床试验,杂志文章,随机对照试验


    authors: Kilpatrick SJ,Safford KL

    更新日期:1993-01-01 00:00:00

  • Obstetric and gynecologic operations in the United States, 1979 to 1984.

    abstract::An in-depth analysis of numbers of obstetric and gynecologic operations from 1979 to 1984 was performed using data from the National Center for Health Statistics. During the study period, there was a decrease in total numbers of obstetric and gynecologic procedures of 1%. During the same five-year period the numbers o...

    journal_title:Obstetrics and gynecology

    pub_type: 杂志文章


    authors: Rutkow IM

    更新日期:1986-06-01 00:00:00

  • Poststerilization regret: findings from the United States Collaborative Review of Sterilization.

    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


    authors: Hillis SD,Marchbanks PA,Tylor LR,Peterson HB

    更新日期:1999-06-01 00:00:00