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Search Results: 1 - 10 of 136 matches for " Zugaib; "
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Cirurgia robótica, devo abrir m o? Robotic surgery, can we live without it?
Ricardo Zugaib Abdalla
ABCD. Arquivos Brasileiros de Cirurgia Digestiva (S?o Paulo) , 2012,
Diretrizes para o cancer de mama gestacional
Rezende Waldemir,Zugaib Marcelo
Revista da Associa??o Médica Brasileira , 2004,
A dopplervelocimetria para a predi o de resultado de gravidez com diminui o de movimentos fetais
Miyadahira Seizo,Zugaib Marcelo
Revista da Associa??o Médica Brasileira , 2003,
Amnioinfus o no tratamento da compress o funicular no trabalho de parto
Revista da Associa??o Médica Brasileira , 2002,
Indicadores de risco para o parto prematuro
Bittar, Roberto Eduardo;Zugaib, Marcelo;
Revista Brasileira de Ginecologia e Obstetrícia , 2009, DOI: 10.1590/S0100-72032009000400008
Abstract: among the clinical factors for preterm birth, some confer substantial increased risk, including a history of preterm birth, multiple gestation and vaginal bleeding in the second trimester. however, these factors are present only in a minority of women who ultimately deliver preterm and thus have low sensitivity. cervical dilatation, effacement and position as determined by manual examination have been related to an increased risk of preterm birth but also suffer from low sensitivity and positive predictive values. cervical length measured with transvaginal ultrasound has also been related to an increased risk of preterm birth as cervical length decreases. the reported sensitivity is better than other tests, but positive predictive value is low. the principal utility of the fetal fibronectin assay lies in its negative predictive value in symptomatic women. increased sensitivity has been reported when cervical length is used in combination with fetal fibronectin.
Tratamento do trabalho de parto prematuro
Bittar, Roberto Eduardo;Zugaib, Marcelo;
Revista Brasileira de Ginecologia e Obstetrícia , 2009, DOI: 10.1590/S0100-72032009000800008
Abstract: the main purpose of using uterulytic in preterm delivery is to prolong gestation in order to allow the administration of glucocorticoid to the mother and/or to accomplish the mother's transference to a tertiary hospital center. decisions on uterolytic use and choice require correct diagnosis of preterm delivery, as well as the knowledge of gestational age, maternal-fetal medical condition, and medicine's efficacy, side-effects and cost. all the uterolytics have side-effects, and some of them are potentially lethal. studies suggest that beta-adrenergic receptor agonists, calcium blockers and cytokine receptor antagonists are effective to prolong gestation for at least 48 hours. among these three agents, atosiban (a cytokine receptor antagonist) is safer, though it presents a high cost. magnesium sulfate is not efficient to prolong gestation and presents significant side-effects. cyclooxygenase inhibitors also present significant side-effects. up till now, there is not enough evidence to recommend the use of nitric oxid donors to inhibit preterm delivery. there is no basis for the use of antibiotics to avoid prematurity in face of preterm labor.
Restri o do crescimento fetal: ainda um grande desafio
Bittar Roberto Eduardo,Zugaib Marcelo
Revista da Associa??o Médica Brasileira , 2003,
Arritmias fetais
Lopes Lilian Maria,Zugaib Marcelo
Arquivos Brasileiros de Cardiologia , 1997,
Prevention of preeclampsia with low-dose aspirin: a systematic review and meta-analysis of the main randomized controlled trials
Ruano, Rodrigo;Fontes, Rosana S.;Zugaib, Marcelo;
Clinics , 2005, DOI: 10.1590/S1807-59322005000500010
Abstract: the purpose of this paper is to evaluate the effectiveness of low-dose aspirin in the prevention of preeclampsia in low-risk and high-risk women. we identified randomized clinical trials of the use of low-dose aspirin to prevent preeclampsia through the pubmed search engine, and through the cochran library database. twenty-two studies met our inclusion criteria, and were divided according to the studied population into 2 groups: trials with women at low risk for preeclampsia and trials with women at high risk. effects were measured through the incidence of preeclampsia in women taking either placebo or aspirin, in studies where the relative risks and the 95% confidence intervals were calculated for both groups. a total of 33,598 women were studied, comprising 5 trials with 16,700 women at low-risk and 17 trials including 16,898 women at high risk. the incidence of preeclampsia was 3.75% (626/17,700), in the low-risk group, 9.01% (1,524/16,898) in the high-risk group, and 6.40% (2,150/33,598) overall. low-dose aspirin had no statistically significantly effect on the incidence of preeclampsia in the low-risk group (rr = 0.95, 95% ci = 0.81-1.11), but had a small beneficial effect in the high-risk group (rr = 0.87, 95% ci = 0.79-0.96). therefore, low-dose aspirin is mildly beneficial in terms of reducing the incidence of preeclampsia in women at high risk of developing preeclampsia.
Predi??o da restri??o do crescimento fetal pela medida da altura uterina
Martinelli, Silvio;Bittar, Roberto Eduardo;Zugaib, Marcelo;
Revista Brasileira de Ginecologia e Obstetrícia , 2004, DOI: 10.1590/S0100-72032004000500007
Abstract: objective: to evaluate the measurement of uterine height in order to predict fetal growth restriction (fgr), according to a local curve. methods: from july 2000 to february 2003, 238 high-risk pregnant women were submitted to uterine height measurements between the 20th and the 42nd week of gestation. the gestational age of all the women was well known, confirmed by early ultrasound. fifty (21%) women gave birth to infants considered small for their gestational age. the measures were performed by a single observer, who took 1617 uterine height measurements, from the upper border of the symphysis pubis to the fundus uteri, using tape measurement. the diagnosis of fgr was confirmed after birth according to the ramos's curve. the women were divided into two groups according to their infant's birth weight and the data were statistically analyzed by the fisher's exact test or kruskal-wallis's test. the sensitivity (se), specificity (sp), positive predictive value (ppv), and negative predictive value (npv) were calculated. the test for two proportions with normal approximation was performed to analyze the continuous variables. results: one measurement below the 10th percentile, according to gestational age, resulted in se = 78.0%, sp = 77.1%, ppv = 47.6%, and npv = 88.8% for the identification of fgr. if one measurement was below the 5th percentile, the se, sp, ppv, and npv were 64.0, 89.9, 62.7 and 90.4%, respectively. conclusions: one measurement below the 10th percentile for the gestational age, according to the local curve, proved to be a good predictor of fgr.
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