Browsing by Author "González Pérez, Rogelio Iván"

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    Bacteria and endotoxin in meconium-stained amniotic fluid at term : Could intra-amniotic infection cause meconium passage?
    (2014) Romero, Roberto; Yoon, Bo Hyun; Chaemsaithong, Piya; Cortez, Joséf; Park, ChanWook; González Pérez, Rogelio Iván; Behnke, Ernesto; Hassan, Sonia, S.; Chaiworapongsa, Tinnakorn,; Yeo, Lami
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    Consenso salud materna para Chile en el nuevo milenio
    (2013) González Pérez, Rogelio Iván; Koch C., Elard; Poblete L., José A.; Vera Pérez-Gacitúa, Claudio Mauricio; Muñoz S., Hernán; Carroli, Guillermo; Abalos, Edgardo; Lalonde, Andre; Oyarzún Ebensperger, Enrique; Germain, Alfredo; Schnapp S., Carlos; Neira M., Jorge; Hasbun H., Jorge; Carvajal C., Jorge A.; Theod, Mónica
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    Effects of calcium supplementation on fetal growth in mothers with deficient calcium intake: a randomised controlled trial
    (2010) Abalos, Edgardo; Merialdi, Mario; Wojdyla, Daniel; Carroli, Guillermo; Campodónico, Liana; Yao, Shih-Ern; González Pérez, Rogelio Iván; Deter, Russell; Villar, José; Van Look, Paul
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    Estimates of burden and consequences of infants born small for gestational age in low and middle income countries with INTERGROWTH-21st standard : analysis of CHERG datasets
    (2017) Lee, Acc; Kozuki, N; Cousens, S; Stevens, G A; Blencowe, H; Silveira, M F; Sania, A; Rosen, H E; Schmiegelow, C; González Pérez, Rogelio Iván; et al.
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    ¿Existe un aumento de los nacimientos en Chile en el período 2000-2009? Análisis de los principales indicadores materno-infantiles de la década
    (2011) González Pérez, Rogelio Iván; Nien Shy, Jyh-Kae; Vera Pérez-Gacitúa, Claudio Mauricio; Poblete L., José A.; Carvajal C., Jorge A.; González O., Miriam; Guzmán B., Eghon; Gómez Mora, Ricardo Alberto; Abarca E., Montserrat; Oyarzún Ebensperger, Enrique
    Objetivo. Describir la tendencia en los nacimientos y los principales indicadores materno-infantiles en Chile desde el año 2000 al 2009. Método. Se realiza un análisis descriptivo de la información obtenida desde el Ministerio de Salud de Chile para el período estudiado. Resultados. Durante el período estudiado nacen aproximadamente 2.400.000 personas, se observa un significativo aumento en su número a partir del año 2004 al 2009 (+9,7%). Las tasas de mortalidad neonatal precoz, tardía, post neonatal e infantil fueron de 3,86; 1,18; 2,54 y 7,58 por 1000 nacidos vivos durante el año 2009, presentado un porcentaje de disminución de un 13,5; 8,4; 16,2; 13,7% respectivamente en comparación al año 2000. La mortalidad materna disminuyó en un 13,2% desde 19,7 a 17,1 por cien mil nacimientos en el mismo período. La prematurez (<37s) incrementa significativamente en un 20,82% (de 5,96 a 7,2%). El mayor cambio se observa entre las 32-33 y 34-36 semanas (aumento de un 18% y 32%, respectivamente). El porcentaje de nacimientos múltiples (dos) aumentó significativamente en un 11%, desde 1,66 a 1,84 por cien nacimientos. Conclusión. Durante el período estudiado se observa un aumento significativo de los nacimientos totales, del porcentaje de primigestas y de madres sobre 40 años. Se presenta un aumento de la prematurez, del bajo peso al nacer y del porcentaje de embarazos múltiples. Los cambios observados se asocian aun a una mejoría de los indicadores neonatales.
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    La hipótesis de Pedersen no es suficiente : otros nutrientes además de la glucosa explicarían la macrosomía fetal en pacientes diabéticas gestacionales con sobrepeso y buen control glicémico
    (2013) Olmos Coelho, Pablo Roberto; Martelo, G.; Reimer, V.; Rigotti Rivera, Attilio; Busso, Dolores; Belmar Jones, Cristián Gastón; González Pérez, Rogelio Iván; Goldenberg, D.; Samith Catalán, Bárbara Patricia; Santos Martín, José Luis; Escalona, M.; Quezada, T.; Faundez, J.; Nicklitschek, I.
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    Mortality risk in preterm and small-for-gestational-age infants in low-income and middle-income countries : a pooled country analysis
    (2013) Katz, J.; Lee, A.; Kozuki, N.; Lawn, J.; Cousens, S.; Blencowe, H.; Ezzati, M.; Butta, Z.; Marchant, T.; González Pérez, Rogelio Iván
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    Secreted phospholipase A(2) is increased in meconium-stained amniotic fluid of term gestations : potential implications for the genesis of meconium aspiration syndrome
    (2014) González Pérez, Rogelio Iván; Romero, R.; Yoon, B.; Chaemsaithong, P.; Cortez, J.; Park, C.; Behnke, E.; Hassan, S.
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    The World Health Organization Fetal Growth Charts: A Multinational Longitudinal Study of Ultrasound Biometric Measurements and Estimated Fetal Weight
    (2017) Kiserud, T.; Piaggio, G.; Carroli, G.; Widmer, M.; Carvalho, J.; Jensen, L.; Cecatti, J.; Aleem, H.; Taiegawkar, S.; González Pérez, Rogelio Iván; Benachi, A.; Diemert, A.; Kitoto, A.; Thinkhamrop, J.; Lumbiganon, P.; Tabor, A
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    WHO multicentre study for the development of growth standards from fetal life to childhood: the fetal component
    (2014) Merialdi, Mario.; González Pérez, Rogelio Iván; Widmer, Mariana.; Gülmezoglu, A. Metin.; Abdel-Aleem, Hany.; Bega, George.; Benachi, Alexandra.; Carroli, Guillermo.; Cecatti, Jose Guilherme.; Diemert, Anke.
    Abstract Background In 2006 WHO presented the infant and child growth charts suggested for universal application. However, major determinants for perinatal outcomes and postnatal growth are laid down during antenatal development. Accordingly, monitoring fetal growth in utero by ultrasonography is important both for clinical and scientific reasons. The currently used fetal growth references are derived mainly from North American and European population and may be inappropriate for international use, given possible variances in the growth rates of fetuses from different ethnic population groups. WHO has, therefore, made it a high priority to establish charts of optimal fetal growth that can be recommended worldwide. Methods This is a multi-national study for the development of fetal growth standards for international application by assessing fetal growth in populations of different ethnic and geographic backgrounds. The study will select pregnant women of high-middle socioeconomic status with no obvious environmental constraints on growth (adequate nutritional status, non-smoking), and normal pregnancy history with no complications likely to affect fetal growth. The study will be conducted in centres from ten developing and industrialized countries: Argentina, Brazil, Democratic Republic of Congo, Denmark, Egypt, France, Germany, India, Norway, and Thailand. At each centre, 140 pregnant women will be recruited between 8 + 0 and 12 + 6 weeks of gestation. Subsequently, visits for fetal biometry will be scheduled at 14, 18, 24, 28, 32, 36, and 40 weeks (+/− 1 week) to be performed by trained ultrasonographers. The main outcome of the proposed study will be the development of fetal growth standards (either global or population specific) for international applications. Discussion The data from this study will be incorporated into obstetric practice and national health policies at country level in coordination with the activities presently conducted by WHO to implement the use of the Child Growth Standards.Abstract Background In 2006 WHO presented the infant and child growth charts suggested for universal application. However, major determinants for perinatal outcomes and postnatal growth are laid down during antenatal development. Accordingly, monitoring fetal growth in utero by ultrasonography is important both for clinical and scientific reasons. The currently used fetal growth references are derived mainly from North American and European population and may be inappropriate for international use, given possible variances in the growth rates of fetuses from different ethnic population groups. WHO has, therefore, made it a high priority to establish charts of optimal fetal growth that can be recommended worldwide. Methods This is a multi-national study for the development of fetal growth standards for international application by assessing fetal growth in populations of different ethnic and geographic backgrounds. The study will select pregnant women of high-middle socioeconomic status with no obvious environmental constraints on growth (adequate nutritional status, non-smoking), and normal pregnancy history with no complications likely to affect fetal growth. The study will be conducted in centres from ten developing and industrialized countries: Argentina, Brazil, Democratic Republic of Congo, Denmark, Egypt, France, Germany, India, Norway, and Thailand. At each centre, 140 pregnant women will be recruited between 8 + 0 and 12 + 6 weeks of gestation. Subsequently, visits for fetal biometry will be scheduled at 14, 18, 24, 28, 32, 36, and 40 weeks (+/− 1 week) to be performed by trained ultrasonographers. The main outcome of the proposed study will be the development of fetal growth standards (either global or population specific) for international applications. Discussion The data from this study will be incorporated into obstetric practice and national health policies at country level in coordination with the activities presently conducted by WHO to implement the use of the Child Growth Standards.Abstract Background In 2006 WHO presented the infant and child growth charts suggested for universal application. However, major determinants for perinatal outcomes and postnatal growth are laid down during antenatal development. Accordingly, monitoring fetal growth in utero by ultrasonography is important both for clinical and scientific reasons. The currently used fetal growth references are derived mainly from North American and European population and may be inappropriate for international use, given possible variances in the growth rates of fetuses from different ethnic population groups. WHO has, therefore, made it a high priority to establish charts of optimal fetal growth that can be recommended worldwide. Methods This is a multi-national study for the development of fetal growth standards for international application by assessing fetal growth in populations of different ethnic and geographic backgrounds. The study will select pregnant women of high-middle socioeconomic status with no obvious environmental constraints on growth (adequate nutritional status, non-smoking), and normal pregnancy history with no complications likely to affect fetal growth. The study will be conducted in centres from ten developing and industrialized countries: Argentina, Brazil, Democratic Republic of Congo, Denmark, Egypt, France, Germany, India, Norway, and Thailand. At each centre, 140 pregnant women will be recruited between 8 + 0 and 12 + 6 weeks of gestation. Subsequently, visits for fetal biometry will be scheduled at 14, 18, 24, 28, 32, 36, and 40 weeks (+/− 1 week) to be performed by trained ultrasonographers. The main outcome of the proposed study will be the development of fetal growth standards (either global or population specific) for international applications. Discussion The data from this study will be incorporated into obstetric practice and national health policies at country level in coordination with the activities presently conducted by WHO to implement the use of the Child Growth Standards.Abstract Background In 2006 WHO presented the infant and child growth charts suggested for universal application. However, major determinants for perinatal outcomes and postnatal growth are laid down during antenatal development. Accordingly, monitoring fetal growth in utero by ultrasonography is important both for clinical and scientific reasons. The currently used fetal growth references are derived mainly from North American and European population and may be inappropriate for international use, given possible variances in the growth rates of fetuses from different ethnic population groups. WHO has, therefore, made it a high priority to establish charts of optimal fetal growth that can be recommended worldwide. Methods This is a multi-national study for the development of fetal growth standards for international application by assessing fetal growth in populations of different ethnic and geographic backgrounds. The study will select pregnant women of high-middle socioeconomic status with no obvious environmental constraints on growth (adequate nutritional status, non-smoking), and normal pregnancy history with no complications likely to affect fetal growth. The study will be conducted in centres from ten developing and industrialized countries: Argentina, Brazil, Democratic Republic of Congo, Denmark, Egypt, France, Germany, India, Norway, and Thailand. At each centre, 140 pregnant women will be recruited between 8 + 0 and 12 + 6 weeks of gestation. Subsequently, visits for fetal biometry will be scheduled at 14, 18, 24, 28, 32, 36, and 40 weeks (+/− 1 week) to be performed by trained ultrasonographers. The main outcome of the proposed study will be the development of fetal growth standards (either global or population specific) for international applications. Discussion The data from this study will be incorporated into obstetric practice and national health policies at country level in coordination with the activities presently conducted by WHO to implement the use of the Child Growth Standards.