Singleton Gestations (singleton + gestation)

Distribution by Scientific Domains


Selected Abstracts


Transient postpartum diabetes insipidus associated with HELLP syndrome

JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH (ELECTRONIC), Issue 6 2006
Ender Ellidokuz
Abstract Diabetes insipidus in pregnancy has different causes. The association of diabetes insipidus with disturbances of liver function has been reported, however, diabetes insipidus has rarely been reported in HELLP syndrome. We present a 23-year-old primigravida with a singleton gestation complicated by HELLP syndrome who developed postpartum diabetes insipidus. Labor was induced promptly to terminate pregnancy because of intrauterine fetal death and liver dysfunction. 1-deamino-8-D-arginine-vasopressin was administered. Diabetes insipidus and liver dysfunction resolved within 2 weeks. Development of diabetes insipidus may result from increased vasopressinase activity mainly caused by deterioration of liver functions caused by HELLP syndrome. In pregnant women with liver disease as a result of any cause, the development of diabetes insipidus should be assessed with particular attention. [source]


The effect of the obstetrician group and epidural analgesia on the risk for cesarean delivery in nulliparous women

ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 8 2000
Y. Beilin
Background: The effects of regional anesthesia and of the obstetrician on the risk of cesarean delivery remain controversial. The purpose of this study was to determine whether epidural analgesia or the obstetrician group is associated with an increase in the risk for cesarean delivery in nulliparous women. Methods: Data were collected for a two-year period from the medical records of all nulliparous women who had a private obstetrician who delivered >20 babies per year, and who presented with a singleton gestation in the vertex presentation for a trial of labor. Results: Data were collected for 3699 women of whom 1832 were nulliparous. Of the 1832 nulliparous women, data were analyzed for the 1278 women who met our study criteria, representing 14 separate obstetrician groups. Excluding the 50 women whose babies were delivered for fetal distress (leaving 1228 women for analysis), the epidural rate was 93%, range 81,98%, and the cesarean delivery rate was 14%, range 8,34%. Logistic regression analyses revealed that (odds ratio, 95% confidence interval) patient age (1.7, 1.2,2.4), birth weight (1.001, 1.001,1.002), induction of labor (1.9, 1.3,2.7), non-Caucasian (1.9, 1.2,2.9) and the obstetrician group, (P=0.002), were independently associated with the risk of cesarean delivery, but epidural analgesia was not (1.6, 0.7,3.6). Conclusions: The obstetrician group is independently associated with the risk of cesarean delivery in nulliparous women, but we could not demonstrate this association with epidural analgesia. We suggest that in future studies regarding epidural analgesia and cesarean delivery, the obstetrician group should be included as a variable ( ,). [source]


Sonographic atypical vascular coiling of the umbilical cord

PRENATAL DIAGNOSIS, Issue 1 2005
Antonella Cromi
Abstract Objective To investigate whether an atypical umbilical coiling pattern at prenatal sonography is associated with adverse pregnancy outcome. Methods A targeted sonographic evaluation of the umbilical cord (UC) was performed in 758 women with singleton gestation, and gestational age above 20 weeks. Atypical coiling was defined as the presence of a spring-shape UC (supercoiling) or an unusual, aperiodic coiling pattern (uncoordinated coiling). Umbilical artery Doppler assessment was conducted in cases with atypical coiling. Pregnancy and neonatal outcomes were investigated. Results Of the study population, 7 and 16 fetuses had an umbilical cord with uncoordinated coiling and supercoiling respectively. Three umbilical cords had a single umbilical artery. Eight patients delivered before 34 weeks of gestation. Eight fetuses were growth restricted. In seven cases, abnormal sonographic findings were detected (three meconium peritonitis, two severe hydronephrosis and two cardiac anomalies). One fetus affected by trisomy 18 presented multiple anomalies. Perinatal death occurred in three cases. Of the surviving newborns, eight were admitted to NICU. Umbilical artery Doppler waveforms presented a systolic notch in seven (30.4%) cases. Conclusions The presence of an atypical umbilical cord vascular coiling is associated with an increased risk of unfavourable pregnancy outcome. The identification of an umbilical artery notch at Doppler investigation is frequently associated with an atypical UC coiling pattern. Copyright © 2005 John Wiley & Sons, Ltd. [source]


Breast Binding , Is It All That It's Wrapped Up To Be?

JOURNAL OF OBSTETRIC, GYNECOLOGIC & NEONATAL NURSING, Issue 3 2003
IBCLC, Kathy Swift MSN
Objective: To investigate the difference in breast symptoms between breast binding and support bra wearing in nonbreastfeeding postpartum mothers. Design: A systematic replication of an earlier study by Bristol using a pre-experimental posttest design. Setting: A private, for-profit hospital in a city in the south-central region of the United States. Participants: Sixty nonbreastfeeding postpartum women who gave birth to viable newborns of singleton gestations, had an uncomplicated postpartum, and did not receive hormonal lactation suppressants. Main Outcome Measures: Postpartum breast engorgement, leakage, tenderness, and use of pain relief measures as measured by the Bristol Record of Symptoms. Results: Analysis of the data revealed no significant difference relative to breast engorgement between the two groups during the first 10 postpartum days. However, the breast-binder group reported a greater degree of breast tenderness, breast leakage, and use of other pain relief measures. Conclusion: Breast binding should be discontinued as a method of lactation suppression and use of support bras encouraged. Future studies need to focus on comfort for nonbreastfeeding, postpartum mothers. [source]


Twin Pregnancies: Eating for Three?

NUTRITION REVIEWS, Issue 9 2005
Maternal Nutrition Update
The incidence of multifetal pregnancies has increased, mainly because of assisted reproduction treatments. This trend is reflected in increased maternal and neonatal morbidity and mortality. While the optimum maternal nutrition and weight gain patterns for singleton pregnancies is well documented, there is a paucity of information for twin pregnancies. Although it is assumed that optimum nutritional requirements and weight gains would be greater for twin than for singleton gestations, research is needed to establish the optima. This article is a collation of available recommendations for maternal nutrition and weight gain patterns in twin pregnancies. [source]


Cervical surveillance as an alternative to elective cervical cerclage for pregnancy management of suspected cervical incompetence

AUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 3 2004
Shane P HIGGINS
Abstract Objective:, The aim of the present study was to compare the outcome of pregnancies among patients with suspected cervical incompetence treated either by elective cervical cerclage or an alternative management program involving cervical surveillance. Design, Setting and Methods:, A prospective cohort study was performed in two groups of patients at risk of cervical incompetence with singleton gestations attending the Royal Women's Hospital, Melbourne, Australia, from 1996 to 2000. The first group was managed by their obstetric carers with an elective cerclage, while the second group was managed conservatively as part of a cervical surveillance program offered to patients attending the Department of Perinatal Medicine for pregnancy care. This program consists of weekly visits from 16 weeks' gestation and involves alternating transvaginal ultrasound assessment of cervical morphometry with cervico-vaginal bacteriology and fetal fibronectin swabs. Empiric insertion of a cerclage is undertaken when there is evidence of significant cervical shortening (cervical canal <2.5 cm in length at ,24 weeks). Results:, A total of 135 patients were identified for the study. Ninety-seven patients had an elective cervical cerclage inserted. Thrity-eight patients were followed through the cervical surveillance program. Twelve (32%) of the surveillance patients had a cerclage inserted at a mean gestational age of 20.6 weeks. There were no statistically significant differences between the groups in terms of maternal demographics or risk assessment scoring. One out of 38 (2.6%) patients of the surveillance group and 18/97 (18.6%) of the elective cerclage group delivered before 30 weeks' gestation (P = 0.034). Conclusions:, Our study suggests that by only inserting a cerclage when indicated on the basis of ultrasound assessment of cervical morphometry, the number of cerclages required can be reduced while the perinatal outcome is significantly improved. [source]


The interrelationship of complement-activation fragments and angiogenesis-related factors in early pregnancy and their association with pre-eclampsia

BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 4 2010
AM Lynch
Please cite this paper as: Lynch A, Murphy J, Gibbs R, Levine R, Giclas P, Salmon J, Holers V. The interrelationship of complement-activation fragments and angiogenesis-related factors in early pregnancy and their association with pre-eclampsia. BJOG 2010; 117:456,462. Objective, To determine the interrelationships during early pregnancy of complement-activation fragments Bb, C3a and sC5b-9, and angiogenesis-related factors placental growth factor (PiGF), soluble fms-like tyrosine kinase-1 (sFlt-1) and soluble endoglin (sEng), and their associations with pre-eclampsia. Design, Prospective cohort study. Setting, Denver complement study (June 2005,June 2008). Population, A total of 668 pregnant women with singleton gestations, recruited between 10 and 15 weeks of gestation. Methods, Using univariable and multivariable logistic regression analysis, concentrations of complement-activation fragments and angiogenesis-related factors were compared between 10 and 15 weeks of gestation in women who subsequently did or did not develop pre-eclampsia. Interrelationships between these variables were tested using the non-parametric Spearman rank correlation coefficient. Main outcome measure, Pre-eclampsia. The association of complement-activation fragments and angiogenesis-related factors with obesity was also examined. Results, The mean (±SD) levels of complement Bb in early pregnancy among women who did and did not develop pre-eclampsia were 0.84 (±0.26) ,g/ml and 0.69 (±0.2) ,g/ml, respectively (P = 0.001). Concentrations of PiGF were significantly (P = 0.01) lower (31 ± 12 pg/ml) in early pregnancy in the pre-eclamptic group of women, as compared with the normotensive group (39 ± 32 pg/ml). The adjusted odds ratio (AOR) of Bb and PiGF were 2.1 (CI = 1.4,3.1, P < 0.0003) and 0.2 (CI = 0.07,0.7, P = 0.01), respectively. There was no significant difference in the levels of C3a, sC5b-9, sFlt-1 and sEng in early pregnancy among women who developed pre-eclampsia, compared with women who remained normotensive during pregnancy. Higher levels of Bb (P = 0.0001) and C3a (P = 0.03), and lower levels of sFlt-1 (P = 0.0002) and sEng (P = 0.0001) were found among women with obesity, compared with non-obese controls. No meaningful relationships were found between the complement-activation fragments and the angiogenesis-related factors. Conclusions, In this cohort during early pregnancy, increased concentrations of complement-activation factor Bb and lower concentrations of PiGF were associated with the development of pre-eclampsia later in pregnancy. [source]