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Trabalhos Originais
Fetal pulse oximetry: relationship between oxygen saturation at second stage of labor and the umbilical artery pH at birth
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(7):381-384
08-07-1999
Summary
Trabalhos OriginaisFetal pulse oximetry: relationship between oxygen saturation at second stage of labor and the umbilical artery pH at birth
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(7):381-384
08-07-1999DOI 10.1590/S0100-72031999000700003
Views43See morePurpose: to study the correlation between fetal oxygen saturation measured by pulse oximetry during second stage of labor and umbilical artery pH at birth. Patients and Methods: fetal oxygen saturation (FSpO2) was monitored by pulse oximetry during the second stage of labor in 64 singleton pregnancies at term, with vertex presentation. Umbilical blood was sampled immediately after delivery for subsequent measurement of venous and arterial blood gases and pH. All fetuses maintained FSpO2 > or = 30% through the first stage of labor, until the start of second stage. Results: the mean FSpO2 at the second stage of labor correlated significantly with umbilical artery pH at birth (n = 64, r = 0.79, p <0.001). There was no significant corre-lation between FSpO2 at the second stage of labor and umbilical artery oxygen saturation at birth. Conclusion: fetal oxygen saturation measured by pulse oximetry during second stage of labor has a good correlation with umbilical artery pH at birth.
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Trabalhos Originais
Reverse blood flow in ductus venosus: new perspective in detection of chromosomal abnormalities
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(7):371-376
08-07-1999
Summary
Trabalhos OriginaisReverse blood flow in ductus venosus: new perspective in detection of chromosomal abnormalities
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(7):371-376
08-07-1999DOI 10.1590/S0100-72031999000700002
Views88See morePurpose: to evaluate the possible value of pulsed and color Doppler of ductus venosus blood flow in the screening for chromosomal abnormalities at 10-14 weeks of gestation. Methods: the ductus venosus flow velocity waveforms and the nuchal translucency (NT) thickness were obtained immediately before the chorionic villus sample in 26 pregnancies. We employed the following criteria for the suspicion of chromosomal defects: reverse or absent flow during atrial contraction and NT greater or equal to 3 mm. We calculated the sensitivity, the specificity, the negative and positive predictive value for each of the above items. Results: there were 9 chromosomal abnormalities (3 cases of trisomy 21, 2 cases of trisomy 13, 1 case of trisomy 9, 1 case of trisomy 22, 1 triploidy and 1 monosomy X). Abnormal ductus venosus flow was observed in all cases (sensitivity of 100%). In the normal fetuses (17 cases) only 1 had abnormal flow (specificity of 94%). Concerning NT, the sensitivity and the specificity were 88% and 76%, respectively. Conclusion: our preliminary results suggest that the presence of chromosomal abnormalities may be strongly suspected when an increased NT thickness is associated with an absent or reverse flow in the ductus venosus. We speculated that both methods are valid in the screening of chromosomal defects.
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Editorial
As sociedades científicas, sua proliferação e a ética
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(7):370-370
08-07-1999
Summary
EditorialAs sociedades científicas, sua proliferação e a ética
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(7):370-370
08-07-1999 -
Resumos de Teses
Avaliação dos padrões vasculares uterino e placentário no primeiro trimestre das gestações normal e patológica
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):302-302
08-07-1999
Summary
Resumos de TesesAvaliação dos padrões vasculares uterino e placentário no primeiro trimestre das gestações normal e patológica
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):302-302
08-07-1999DOI 10.1590/S0100-72031999000500012
Views37Avaliação dos Padrões Vasculares Uterino e Placentário no Primeiro Trimestre das Gestações Normal e Patológica […]See more -
Resumos de Teses
Dopplervelocimetria das artérias uterinas, arqueadas e espiraladas no prognóstico de receptividade endometrail de mulheres em ciclos estimulados para fertilização in vitro
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):302-302
08-07-1999
Summary
Resumos de TesesDopplervelocimetria das artérias uterinas, arqueadas e espiraladas no prognóstico de receptividade endometrail de mulheres em ciclos estimulados para fertilização in vitro
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):302-302
08-07-1999DOI 10.1590/S0100-72031999000500013
Views30Dopplervelocimetria das Artérias Uterinas, Arqueadas e Espiraladas no Prognóstico de Receptividade Endometrail de Mulheres em Ciclos Estimulados para Fertilização In Vitro […]See more -
Resumos de Teses
Estudo anatomoclínico do carcinoma ductal invasivo da mama em pacientes axila-negativas associado à identificação dos receptores de estrogênio
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):301-301
08-07-1999
Summary
Resumos de TesesEstudo anatomoclínico do carcinoma ductal invasivo da mama em pacientes axila-negativas associado à identificação dos receptores de estrogênio
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):301-301
08-07-1999DOI 10.1590/S0100-72031999000500010
Views38Estudo Anatomoclínico do Carcinoma Ductal Invasivo da Mama em Pacientes Axila-Negativas Associado à Identificação dos Receptores de Estrogênio. […]See more -
Resumos de Teses
Sangramento uterino anormal na adolescência
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):301-302
08-07-1999
Summary
Resumos de TesesSangramento uterino anormal na adolescência
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):301-302
08-07-1999 -
Relato de Caso
Full-term pregnancy after endometrial ablation
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):297-298
08-07-1999
Summary
Relato de CasoFull-term pregnancy after endometrial ablation
Revista Brasileira de Ginecologia e Obstetrícia. 1999;21(5):297-298
08-07-1999DOI 10.1590/S0100-72031999000500009
Views78See moreEndometrial ablation is a useful technique in patientes with abnormal uterine bleeding without response to clinical measures. Pregnancy is possible even after the destruction or resection of the endometrium. The case reported is a normal term pregnancy after endometrial ablation because ot menorrhagia without successful prior clinical treatment.
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