RESUMO
Head circumference and its cross-sectional area, biparietal and fronto-occipital diameters, abdominal circumference and its cross-sectional area, and the transverse and anteroposterior diameters were measured in 30 healthy single fetuses from normal pregnancies by means of ultrasound. The 5th, 50th and 95th percentiles of distance and velocity curves are described. The comparison of the values of a perimeter (abdominal or cephalic) measured directly from the photograph or calculated by the ellipse formula, showed a straight correlation. The use of the ellipse formula in current practice may simplify and reduce the cost of this technology.
Assuntos
Antropometria/métodos , Feto/fisiologia , Ultrassonografia , Abdome/crescimento & desenvolvimento , Adulto , Encéfalo/crescimento & desenvolvimento , Cefalometria/métodos , Feminino , Idade Gestacional , Crescimento , Humanos , Estudos Longitudinais , Gravidez , UruguaiRESUMO
In this study a cranial perimeter curve was established from 13 weeks of gestation to 6 months of postnatal life. Thirty cases were studied. The intrauterine section of the curve was derived from data obtained weekly by echography. The tenth and fiftieth percentiles of fetal measurements were greater than those described by other authors, who established intrauterine growth curves with data obtained after pretermed delivery. This pattern was used to assess the cranial perimeter growth to six months of corrected age in 48 preterm neonates of appropriate weight. Their values were below the standard at birth, reaching the normal measures on the expected date of confinement.
Assuntos
Cefalometria , Feto/fisiologia , Recém-Nascido , Recém-Nascido Prematuro , Maturidade dos Órgãos Fetais , Idade Gestacional , Crescimento , Cabeça/embriologia , Humanos , Lactente , Estudos Longitudinais , UltrassonografiaRESUMO
Gestational age assessed by dorsal spine length (DSL) was compared with that based on date of the last menstrual period (LMP). This study was performed in 70 newborn infants admitted to a neonatal intensive care unit requiring chest radiography, by which dorsal spine length was measured (figure 1). Gestational age ranged from 23 to 42 weeks. Regression analysis were performed on DSL and gestational age. Estimation error was evaluated based on the percentage of agreement in weeks (validity) and the difference in averages between both methods (accuracy) (table I and figure 2). Variations during the first week of life were also studied and no significant differences were found. For infants born at 31 weeks or less, DSL overestimated gestational age in one week. There was no differences between 32 and 36 weeks, and over 37 weeks, underestimation was one week (figure 3). With this correction a table was built estimating gestational age for different DSL; percentage of agreement was 91.4% for +/- 3 weeks (table III). This methodology assists the clinician to evaluate gestational age by an objective method, that does not vary during the first week of life and that can be obtained retrospectively.
Assuntos
Idade Gestacional , Coluna Vertebral/anatomia & histologia , Desenvolvimento Embrionário e Fetal/fisiologia , Feminino , Retardo do Crescimento Fetal/patologia , Macrossomia Fetal/patologia , Humanos , Gravidez , Radiografia , Análise de Regressão , Coluna Vertebral/diagnóstico por imagem , Coluna Vertebral/embriologiaAssuntos
Feto/anatomia & histologia , Ultrassonografia , Abdome , Antropometria/métodos , Cefalometria/métodos , Feminino , Humanos , Recém-Nascido , GravidezAssuntos
Prontuários Médicos , Perinatologia , Feminino , Humanos , Recém-Nascido , América Latina , Masculino , Serviços de Saúde Materna , GravidezRESUMO
Las nuevas versiones de los programas del Sistema Informático Perinatal han sido preparadas para funcionar conformando una red hospitalaria, regional o nacional según diferentes modelos de complejidad. Esta nueva posibilidad facilita el flujo de información entre niveles para la major atención de la gestante y recién nacido, así como también para la gestión del sector, permitiendo centralizar bases de datos con información actualizada para evaluación y toma de decisiones de manera oportuna...
Assuntos
Sistemas de Informação , Prontuários Médicos , Assistência Perinatal , Serviços de Saúde Materno-InfantilRESUMO
Se estudiaron 171 embarazadas que tenian indicacion de amniocentesis para diagnosticar madurez pulmonar fetal. Anexo de la misma se clasifico la placenta en inmadura, intermedia y madura, considerando la caracteristica que mas superficie ocupaba de la plasenta. De los 123 embarazos de termino, 44 (35.8%) presentaron plancentas ecograficamente maduras y estas se asociaron en el 98%, 96%, 93% con la presencia de fosfolipidos en el liquido amniotico en toda la muestra, en menores de 37 semanas y en menores de 35 semanas respectivamente. con los recien nacidos cuyos partos se produjeron dentro de los 7 dias del examen, se calculo la eficacia diagnostica de la imagen ecografica de la placenta para predecir en forma antenatal la enfermedad de la membrana hialina (EMH), encontrandose que la placenta madura predecia en un 100% la ausencia de EMH. El procentaje de imagenes ecograficas de placentas maduras a diferentes edades gestacionales, solo es superado por la relacion L/E mayor o igual a 2
Assuntos
Gravidez , Recém-Nascido , Humanos , Feminino , Placenta , Pulmão/crescimento & desenvolvimento , Ultrassonografia , Doença da Membrana Hialina/diagnósticoRESUMO
Se estudiaron 171 embarazadas que tenian indicacion de amniocentesis para diagnosticar madurez pulmonar fetal. Anexo de la misma se clasifico la placenta en inmadura, intermedia y madura, considerando la caracteristica que mas superficie ocupaba de la plasenta. De los 123 embarazos de termino, 44 (35.8%) presentaron plancentas ecograficamente maduras y estas se asociaron en el 98%, 96%, 93% con la presencia de fosfolipidos en el liquido amniotico en toda la muestra, en menores de 37 semanas y en menores de 35 semanas respectivamente. con los recien nacidos cuyos partos se produjeron dentro de los 7 dias del examen, se calculo la eficacia diagnostica de la imagen ecografica de la placenta para predecir en forma antenatal la enfermedad de la membrana hialina (EMH), encontrandose que la placenta madura predecia en un 100% la ausencia de EMH. El procentaje de imagenes ecograficas de placentas maduras a diferentes edades gestacionales, solo es superado por la relacion L/E mayor o igual a 2
Assuntos
Gravidez , Recém-Nascido , Humanos , Feminino , Placenta , Ultrassonografia , Pulmão , Doença da Membrana Hialina/diagnósticoAssuntos
Humanos , Feminino , Gravidez , Parto , Trabalho de Parto Prematuro , Recém-Nascido Prematuro , Cuidado Pré-NatalRESUMO
Intrauterine fetal weights at different gestational ages were estimated and percentiles 10, 50 and 90 were calculated from weeks 26 to 40. This new pattern was compared with the curve of neonatal weight according to gestational age, the latter of which was plotted bu using birthweight. It can be seen that, between weeks 26 and 37, estimated uterine weights were greater than the weights of newborn infants. This difference is greatest (250 - 300 gm) at about 32 weeks gestational age. The percentage off neonates who would be classified as small for dates if these new curves were used instead of the traditional ones, is calculated