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  • Original Article

    Association between Dietary Glycemic Index and Excess Weight in Pregnant Women in the First Trimester of Pregnancy

    Rev Bras Ginecol Obstet. 2019;41(1):04-10

    Summary

    Original Article

    Association between Dietary Glycemic Index and Excess Weight in Pregnant Women in the First Trimester of Pregnancy

    Rev Bras Ginecol Obstet. 2019;41(1):04-10

    DOI 10.1055/s-0038-1676096

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    Abstract

    Objective

    To assess the association between dietary glycemic index (GI) and excess weight in pregnant women in the first trimester of pregnancy.

    Methods

    A cross-sectional study in a sample of 217 pregnant women was conducted at the maternal-fetal outpatient clinic of the Hospital Geral de Fortaleza, Fortaleza, state of Ceará, Brazil, for routine ultrasound examinations in the period between 11 and 13 weeks + 6 days of gestation.Weight and height were measured and the gestational body mass index (BMI) was calculated. The women were questioned about their usual body weight prior to the gestation, considering the prepregnancy weight. The dietary GI and the glycemic load (GL) of their diets were calculated and split into tertiles. Analysis of variance (ANOVA) or Kruskal-Walls and chi-squared (χ2) statistical tests were employed. A crude logistic regression model and a model adjusted for confounding variables known to influence biological outcomes were constructed. A p-value < 0.05 was considered significant for all tests employed.

    Results

    The sample group presented a high percentage of prepregnancy and gestational overweight (39.7% and 40.1%, respectively). InthetertilewiththehigherGIvalue, therewasa lower dietary intake of total fibers (p = 0.005) and of soluble fibers (p = 0.008). In the third tertile, the dietary GI was associated with overweight in pregnant women in the first trimester of gestation, both in the crude model and in the model adjusted for age, total energy intake, and saturated fatty acids. However, this association was not observed in relation to the GL.

    Conclusion

    A high dietary GI was associated with excess weight in women in the first trimester of pregnancy.

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  • Original Article

    Neurological Evaluation of the Surviving Twin When One Dies In Utero

    Rev Bras Ginecol Obstet. 2002;24(2):107-112

    Summary

    Original Article

    Neurological Evaluation of the Surviving Twin When One Dies In Utero

    Rev Bras Ginecol Obstet. 2002;24(2):107-112

    DOI 10.1590/S0100-72032002000200006

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    Purpose: to analyze the effects of prenatal and perinatal complications and the neurological development of surviving twins when the other had died in utero. Methods: fourteen cases of twin pregnancies where one of the twins had died during the pregnancy were analyzed. These patients gave birth between 1988 and 1994 and were subsequently followed-up by the Department of Obstetrics, Pathology Division, at the Hospital das Clínicas, Faculty of Medicine of Ribeirão Preto, University of São Paulo. Data from prenatal and perinatal records as well as findings from the deceased twins' autopsies were analyzed. In 1996, requests were made for the children to have a neurological examination as part of the study. The examination included developmental assessment and pathological signs in the motor, sensory and sensitivy areas and superior cortical functions such as praxis and agnosia. Results: ten of the fourteen contacted subjects complied with the request for neurological examination. Of the ten examined children only one had abnormal neurological findings, presenting a light degree of spastic paresis of the left leg. The pregnancy evaluation showed five cases of monochorionic placenta and one case of monoamnionic pregnancy; six of the fourteen cases reached full-term. In six cases (42.8%) one of the fetus died during the second trimester and in the other they died during the third trimester. Only one newborn, who had Apgar 0 at the first minute, developed neurological sequelae. Conclusion: the neurological problem of one fetus may be a consequence of the perinatal complications that this fetus developed. The other newborns did not develop sequelae, possibly because of the conservatory management, trying to make the pregnancy reach 32 weeks or more, thus decreasing the complications of preterm delivery.

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  • Original Article

    Evaluation of the teratogenic risks in gestations exposed to misoprostol

    Rev Bras Ginecol Obstet. 2010;32(1):19-35

    Summary

    Original Article

    Evaluation of the teratogenic risks in gestations exposed to misoprostol

    Rev Bras Ginecol Obstet. 2010;32(1):19-35

    DOI 10.1590/S0100-72032010000100004

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    PURPOSE: failed attempted abortions with the use of misoprostol (Cytotec®) without medical indication have been associated with the occurrence of congenital malformations. The objective of the present study was to identify, in newborns with malformations and in normal controls, the frequency of exposure to misoprostol and the spectrum of associated malformations. METHODS: this was a case-control study involving a daily survey at four public maternities in Fortaleza (CE) for the identification of newborns with malformations and paired controls (1:1) during the period from July to November 2005. The sample comprised 252 parturients interviewed by a trained team by means of a structured questionnaire based on the Latin American Collaborative Study of Congenital Malformations (Estudo Colaborativo Latino-Americano de Malformações Congênitas, ECLAMC). The questionnaire was used to obtain sociodemographic data and a family history of malformations, as well as to identify diverse forms of exposure during pregnancy, including misoprostol. Bivariate analysis and the chi-square test were used to compare cases and controls regarding their characteristics and factors associated with malformation, and the Odds Ratio was calculated to determine the chance of the Case Group to present malformations as compared to the Control Group after exposure to misoprostol. RESULTS: there were no significant differences between groups regarding most of the risk factors for malformations investigated. Attempted abortion was reported by 6.8% of the mothers, with a higher exposure to misoprostol during pregnancy resulting in a greater proportion of malformed newborns, Odds Ratio (OR)=3.65 (95%CI=0.74-17.91). The spectrum of congenital defects encountered with exposure to misoprostol included defects of the central nervous, musculoskeletal, urogenital and cardiovascular systems, in agreement with literature data. CONCLUSION: the findings of this study suggest that fetuses exposed to misoprostol tend to be at higher risk of developing congenital malformations in comparison to non-exposed fetuses. Other studies should be encouraged for a better identification of the damage caused by the improper use of misoprostol, especially in countries where the control of medication is inadequate.

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  • Ethical considerations when offering noninvasive prenatal testing

    Rev Bras Ginecol Obstet. 2013;35(5):195-198

    Summary

    Ethical considerations when offering noninvasive prenatal testing

    Rev Bras Ginecol Obstet. 2013;35(5):195-198

    DOI 10.1590/S0100-72032013000500001

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    EDITORIAL Ethical considerations when offering noninvasive prenatal testing […]
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  • Artigos Originais

    Risk factors associated with weight retention in postpartum period

    Rev Bras Ginecol Obstet. 2014;36(5):222-227

    Summary

    Artigos Originais

    Risk factors associated with weight retention in postpartum period

    Rev Bras Ginecol Obstet. 2014;36(5):222-227

    DOI 10.1590/S0100-7203201400050007

    Views4

    PURPOSE:

    To identify risk factors for weight retention in women after childbirth.

    METHODS:

    This was a prospective observational study that followed for six months adult women who delivered at a tertiary center. Were applied a structured questionnaire before hospital discharge and at six weeks and six months after childbirth, through home visits. The outcome was weight retention after childbirth (if risk >7.5 kg). The variables analyzed were: age, skin color, working during pregnancy, income, education, marital status, age at menarche, maternal age at first birth, parity, mode of delivery, birth interval, pre-pregnancy weight, gestational weight gain, percent body fat, and nutritional status. Data were first analyzed by bivariate analysis between prevalence of weight retention at six months and several covariates (p<0.2). We then calculated the Odds Ratio (OR) and their respective gross confidence intervals of 95% (95%CI) and finally performed multivariate logistic regression to control for confounding factors and to estimate the OR and 95%CI.

    RESULTS:

    The frequency of weight retention >7.5 kg by 6 months after delivery was 15%. In bivariate analysis, weight retention was associated with the following variables: age at menarche <12 years (OR=3.7; 95%CI1.1-13.2), gestational weight gain ≥16 kg (OR=5.8; 95%CI 1.8-18.6), percent body fat at baseline >30% (OR=5.0; 95%CI 1.1-23.6), and nutritional status by 6 weeks postpartum >25 kg/m2 (OR=7.7; 95%CI1.6-36.1). In multivariate analysis, only excessive gestational weight gain (OR=74.1; 95%CI 9.0-609.6) remained as a risk factor.

    CONCLUSION:

    Excessive weight gain during pregnancy should receive special attention in prenatal care in view of its association with weight retention and excess weight in women after childbirth.

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  • Magnesium sulphate for fetal neuroprotection

    Rev Bras Ginecol Obstet. 2011;33(6):265-270

    Summary

    Magnesium sulphate for fetal neuroprotection

    Rev Bras Ginecol Obstet. 2011;33(6):265-270

    DOI 10.1590/S0100-72032011000600001

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    EDITORIAL Magnesium sulphate for fetal neuroprotection […]
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  • Review Article

    Uterine Artery Doppler in Screening for Preeclampsia and Fetal Growth Restriction

    Rev Bras Ginecol Obstet. 2018;40(5):287-293

    Summary

    Review Article

    Uterine Artery Doppler in Screening for Preeclampsia and Fetal Growth Restriction

    Rev Bras Ginecol Obstet. 2018;40(5):287-293

    DOI 10.1055/s-0038-1660777

    Views4

    Abstract

    Objective

    To perform a comprehensive review of the current evidence on the role of uterine artery Doppler, isolated or in combination with other markers, in screening for preeclampsia (PE) and fetal growth restriction (FGR) in the general population. The review included recently published large cohort studies and randomized trials.

    Methods

    A search of the literature was conducted usingMedline, PubMed, MeSH and ScienceDirect. Combinations of the search terms “preeclampsia,” “screening,” “prediction,” “Doppler,” “Doppler velocimetry,” “fetal growth restriction,” “small for gestational age” and “uterine artery” were used. Articles in English (excluding reviews) reporting the use of uterine artery Doppler in screening for PE and FGR were included.

    Results

    Thirty articles were included. As a single predictor, uterine artery Doppler detects less than 50% of the cases of PE and no more than 40% of the pregnancies affected by FGR. Logistic regression-based models that allow calculation of individual risk based on the combination of multiple markers, in turn, is able to detect ~ 75% of the cases of preterm PE and 55% of the pregnancies resulting in small for gestational age infants.

    Conclusion

    The use of uterine artery Doppler as a single predictive test for PE and FGR has poor accuracy. However, its combined use in predictive models is promising, being more accurate in detecting preterm PE than FGR.

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    Uterine Artery Doppler in Screening for Preeclampsia and Fetal Growth Restriction
  • Artigos Originais

    Maternal risk factors associated with the necessity of neonatal intensive care unit

    Rev Bras Ginecol Obstet. 2014;36(1):29-34

    Summary

    Artigos Originais

    Maternal risk factors associated with the necessity of neonatal intensive care unit

    Rev Bras Ginecol Obstet. 2014;36(1):29-34

    DOI 10.1590/S0100-72032014000100007

    Views1

    PURPOSE:

    To evaluate the maternal risk factors that require newborn assistance in neonatal Intensive Care Units (ICU).

    METHODS:

    A prospective observational case-control study was conducted on 222 pregnant women (1:1 case-control ratio) attended at a public maternity. The following variables were analyzed in the puerperae: age at menarche, age at first sexual intercourse, history of chronic diseases, habits, prenatal care, obstetric history, clinical complications during pregnancy and childbirth, and sociodemographic variables. The variables of the newborns were: Apgar scores, gestational age, birth weight, presence or absence of malformation, need for resuscitation, and complications during the first 24 hours. Proportions were compared using the Fisher exact test or the Person γ2 test. Multivariable models were developed by logistic regression analysis using adjusted Odds Ratio with a 95% confidence interval (CI).

    RESULTS:

    Regarding reproductive history, ≥3 pregnancies and 2 or 3 previous cesareans were sytatistically significant (p=0.0 and 0.0, respectively). Among the complications that required assistance in the neonatal ICU, prematurity was responsible for 61 cases (55.5%), followed by risk of intrapartum infection in 46 cases (41.8%). Regarding the maternal history, the presence of hypertensive disease showed statistical significance (p=0.0). Premature rupture of membranes was strongly associated with the need for the neonatal ICU (Odds Ratio - OR=6.1, 95%CI 2.6-14.4).

    CONCLUSIONS:

    Premature rupture of membranes and hypertensive disease should receive special attention in prenatal care due to their strong association with newborns requiring assistance in the neonatal ICU.

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