oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 160 )

2018 ( 815 )

2017 ( 745 )

2016 ( 1104 )

Custom range...

Search Results: 1 - 10 of 461609 matches for " Oneida; Mejía-Montilla "
All listed articles are free for downloading (OA Articles)
Page 1 /461609
Display every page Item
Tocólisis con clorhidrato de isoxuprina o nifedipina en la amenaza de parto pretérmino
Torres-Cepeda,Duly; Guerra-Velásquez,Mery; Reyna-Villasmil,Eduardo; Colmenares-Vega,María; Delgado-Delgado,Oneida; Mejía-Montilla,Jorly; Reyna-Villasmil,Nadia;
Revista de Obstetricia y Ginecología de Venezuela , 2010,
Abstract: objective: to compare the efficacy of isoxuprine clorhidrate or nifedipine in tocolysis of threatened preterm labor. methods: 82 patients with a gestational age between 24 and 34 weeks and threatened preterm labor diagnosis were selected. patients were randomly divided in 2 groups to receive isoxuprine clorhidrate (group a) or nifedipine (group b). time of cease of contractions, maternal blood pressure, glucose concentrations and maternal adverse effects were determined. setting: maternidad "dr. nerio belloso", hospital central "dr. urquinaona", maracaibo. estado zulia. results: an effective tocolysis was obtained within 24 hours in 61.0 % and 70.7 % for patients in group a and b, respectively (p = ns). after 7 days of treatment, 36.6 % of patients in group a and 31,7 % of patients in group b were still without contractions (p = ns). a delay in labor till 34 weeks or more was made in 26.8.% and 29.3 % of patients in group a and b, respectively. in the group of patients treated with isoxuprine clorhidrate a significant raise of glucose concentrations was observed (p < 0.001). maternal adverse effects were significant more frequent in isoxuprine clorhidrate group after 2 and 24 hours of treatment (p < 0,05). conclusion: nifedipine has a similar effectivity than isoxuprine clorhidrate for tocolysis in threatened preterm labor and produces less adverse effects.
Homocisteína plasmática en pacientes con síndrome de ovarios poliquísticos
Reyna-Villasmil,Eduardo; Torres-Montilla,Marielys; Reyna Villasmil,Nadia; Mejía-Montilla,Jorly;
Revista de Obstetricia y Ginecología de Venezuela , 2003,
Abstract: objective: to determine homocysteine levels in patients with polycystic ovary syndrome and insulin resistance non-treated. method: 19 patients who suffered of polycystic ovary syndrome were included in this study. control group consisted in 10 women, with regular menstruation and normal ultrasonographic ovaries. hormonal assay, lipid profile, ecographic evaluation and detennination of homecysteine were made. setting: hospital central "dr. urquinaona", maracaibo.results: evidence was found of a significant high level of homocysteine in patients with polycystic ovary syndrome when compared with controls (12.3 ± 3.1 vs. 6.8 ± 1.5 ng/dl; p< 0.05). mean level of serum insulin was signiftcant higher (23.3 ± 10.4 vs. 12.4 ± 1.2 mu/ml; p< 0.05) and levets of sexual hormone biding globulin were significant lower (1.76 ± 0.6 vs. 3.5 ± 0.9 mg/ml; p< 0.001), in cases en polycystic ovary syndrome when compared with controls confirming a higher incidence of this metabolic disorder in polycystic ovary syndrome. conclusions: these observations give evidence of significant difference of plasmatic concentrations of homocysteine in patients with polycystic ovary syndrome and normal subjects, although mean levels of homocysteine were within the normal range for both groups.
Homocisteína plasmática en pacientes con síndrome de ovarios poliquísticos
Eduardo Reyna-Villasmil,Marielys Torres-Montilla,Nadia Reyna Villasmil,Jorly Mejía-Montilla
Revista de Obstetricia y Ginecología de Venezuela , 2003,
Abstract: Objetivo: Determinar los niveles de homocisteína en pacientes jóvenes con síndrome de ovarios poliquísticos y resistencia a la insulina no tratadas. Método: 19 pacientes que padecían síndrome de ovarios poliquísticos se incluyeron en nuestro estudio. El grupo control consistió en l0 mujeres, con menstruaciones regulares y ovarios por ultrasonografía normales. Se realizaron pruebas hormonales, perfil lipídico, evaluaciones ecográficas y determinación de homocisteína. Ambiente: Hospital Central "Dr. Urquinaona", Maracaibo.Resultados: Se encontró evidencia de niveles significativamente altos de homocisteína en pacientes con síndrome de ovarios poliquísticos al compararlas con los sujetos controles (12,3 ± 3,1 vs. 6,8 ± 1,5 ng/dL; p< 0,05). El nivel promedio de insulina sérica fue significativamente mayor (23,3 ± 10,4 vs 12,4 ± 1,2 mU/mL; p< 0,05) y los niveles de globulina fijadora de hormonas sexuales fueron significativamente menores (1,76 ± 0,6 vs 3,5 ± 0,9 mg/mL; p< 0,001) en los casos de síndrome de ovarios poliquísticos al compararlo con los controles, confirmando una mayor incidencia de este trastorno metabólico en el síndrome. Conclusiones: Estas observaciones aportan evidencia de diferencias significativas en las concentraciones plasmáticas de homocisteína entre pacientes con síndrome de ovarios poliquísticos y sujetos normales, aunque los niveles promedio de homocisteína estuvieron dentro de límites normales para ambos grupos. Objective: To determine homocysteine levels in patients with polycystic ovary syndrome and insulin resistance non-treated. Method: 19 patients who suffered of polycystic ovary syndrome were included in this study. Control group consisted in 10 women, with regular menstruation and normal ultrasonographic ovaries. Hormonal assay, lipid profile, ecographic evaluation and detennination of homecysteine were made. Setting: Hospital Central "Dr. Urquinaona", Maracaibo.Results: Evidence was found of a significant high level of homocysteine in patients with polycystic ovary syndrome when compared with controls (12.3 ± 3.1 vs. 6.8 ± 1.5 ng/dL; p< 0.05). Mean level of serum insulin was signiftcant higher (23.3 ± 10.4 vs. 12.4 ± 1.2 mU/mL; p< 0.05) and levets of sexual hormone biding globulin were significant lower (1.76 ± 0.6 vs. 3.5 ± 0.9 mg/mL; p< 0.001), in cases en polycystic ovary syndrome when compared with controls confirming a higher incidence of this metabolic disorder in polycystic ovary syndrome. Conclusions: These observations give evidence of significant difference of plasmatic concentrations of homocysteine in patients w
Terapia hormonal de reemplazo y niveles plasmáticos de homocisteína y proteína C reactiva
Reyna-Villasmil,Eduardo; Torres-Montilla,Marielys; Reyna-Villasmil,. Nadia; Mejía-Montilla,. Jorly;
Revista de Obstetricia y Ginecología de Venezuela , 2003,
Abstract: objective: to investigate effect of estrogens compared with hormone replacement therapy with estrogen progestin over plasma homocysteine and c-reactive protein levels at 6 months in healthy menopausal women. methods: fifty-six postmenopausal women were included. patients were treated: group a: 0,625 mg/day of natural conjugated estrogens, and group b: 2 mg of estradiol and 1 mg of norestestirone acetate. concentrations of total serum cholesterol, low-density lipoprotein, high-density lipoprotein, tryglicerides, plasma homocysteine and c reactive protein were measured. setting: hospital central "dr. urquinaona", maracaibo.results: of 56 women, 26 received natural conjugated estrogens and the rest 30 received estradiol norestestirone acetate. estrogens alone increased significantly concentrations of c-reactive protein (p< 0.05), but combined treatment does not produce significant changes of it. however, both treatments reduced significantly plasma homocysteine levels (p< 0.05). after 6 months of treatment, mean concentrations of homocysteine decreased in 21.8 % in group a and 29.2 % in group b. conclusions: the reduction of plasma homocysteine levels with both treatments may contribute to cardiovascular benefit of the use of hormonal replacement treatment and increased of c-reactive protein induced by estrogens could be partially prevented by addition of progesterone to treatment.
Terapia hormonal de reemplazo y niveles plasmáticos de homocisteína y proteína C reactiva
Eduardo Reyna-Villasmil,Marielys Torres-Montilla,. Nadia Reyna-Villasmil,. Jorly Mejía-Montilla
Revista de Obstetricia y Ginecología de Venezuela , 2003,
Abstract: Objetivo: Investigar el efecto de los estrógenos comparado a la terapia de reemplazo de estrógenos-progestina sobre los niveles de homocisteína plasmática y proteína C reactiva a los 6 meses en posmenopáusicas sanas. Método: Se incluyeron cincuenta y seis posmenopáusicas atendidas en forma ambulatoria. Los esquemas hormonales fueron: Grupo A: 0,625 mg / día de estrógenos conjugados naturales, y Grupo B: 2 mg de estradiol y 1 mg de acetato de norestisterona. Se midieron las concentraciones séricas de colesterol total, lipoproteína de baja y alta densidad, triglicéridos, homocisteína plasmática y proteína C reactiva. Ambiente: Hospital Central "Dr. Urquinaona", Maracaibo. Resultados: De las 56 mujeres, 26 recibieron estrógenos conjugados naturales y las restantes 30 recibieron estradiol - acetato de noretisterona. Los estrógenos solos aumentaron de forma significativa las concentraciones de proteína C reactiva (p< 0,05), pero el esquema combinado no produjo efectos significativos sobre dicha proteína. Sin embargo, ambos esquemas disminuyeron significativamente los niveles de homocisteína plasmática (p< 0,05). Después de seis meses de tratamiento, las concentraciones promedio de homocisteína disminuyeron en 21,8 % en el grupo A y 29,2 % en el grupo B. Conclusiones: La reducción en los niveles plasmáticos de homocisteína con ambos esquemas puede contribuir al beneficio cardiovascular del uso de la terapia hormonal de reemplazo y el aumento de la proteína C reactiva inducido por los estrógenos puede ser parcialmente contrarrestado por la adición de progesterona a los esquemas de tratamiento. Objective: To investigate effect of estrogens compared with hormone replacement therapy with estrogen progestin over plasma homocysteine and C-reactive protein levels at 6 months in healthy menopausal women. Methods: Fifty-six postmenopausal women were included. Patients were treated: Group A: 0,625 mg/day of natural conjugated estrogens, and Group B: 2 mg of estradiol and 1 mg of norestestirone acetate. Concentrations of total serum cholesterol, low-density lipoprotein, high-density lipoprotein, tryglicerides, plasma homocysteine and C reactive protein were measured. Setting: Hospital Central "Dr. Urquinaona", Maracaibo.Results: Of 56 women, 26 received natural conjugated estrogens and the rest 30 received estradiol norestestirone acetate. Estrogens alone increased significantly concentrations of C-reactive protein (p< 0.05), but combined treatment does not produce significant changes of it. However, both treatments reduced significantly plasma homocysteine levels (p< 0
Efecto del citrato de sildenafil sobre el flujo sanguíneo de las arterias uterina, umbilical y cerebral media fetal en preeclámpticas
Eduardo Reyna-Villasmil,Duly Torres-Cepeda,Elvia Pe?a-Paredes,Jorly Mejía-Montilla
Revista de Obstetricia y Ginecología de Venezuela , 2008,
Abstract: Objetivo: Establecer el efecto del citrato de sildenafil sobre el flujo sanguíneo de las arterias uterina, umbilical y cerebral media fetal en preeclámpticas. Métodos: Se seleccionaron un total de 30 preeclámpticas (grupo A) y 30 embarazadas normotensas (grupo B). Las 60 pacientes eran nulíparas y tenían más de 25 semanas de embarazo. Se analizaron el flujo sanguíneo de las arterias uterinas, umbilical y cerebral media fetal. Se midieron el índice de pulsatilidad, de resistencia y relación del flujo sanguíneo sistólico / diastólico de cada arteria. El tratamiento fue de 50 mg de citrato de sildenafil por vía oral dos veces al día (100 mg/día) por dos días al grupo de las preeclámpticas (grupo A). Ambiente: Maternidad "Dr. Nerio Belloso". Hospital Central "Dr. Urquinaona". Maracaibo, Estado Zulia. Resultados: No se encontraron diferencias estadísticamente significativas con relación a la edad materna y gestacional (p = NS). Los resultados de las mediciones Doppler iniciales demostraron diferencias estadísticamente significativas al compararlas con los controles normotensas (P < 0,01). Después del uso del sildenafil en el grupo A, se encontró una reducción estadísticamente significativa en las mediciones del índice de pulsatilidad, de resistencia y relación del flujo sanguíneo sistólico / diastólico de la arteria uterina al compararlo con los valores promedio iniciales (P < 0,01). Conclusión: El citrato de sildenafil produce una mejoría significativa sobre el flujo sanguíneo de las arterias uterinas sin afectar el flujo sanguíneo de las arterias umbilical y cerebral media fetal. Objective: To establish the effect of sildenafil citrate over blood flow of uterine, umbilical and fetal middle cerebral artery in preeclamptic patients. Methods: A total of 30 preeclamptic patients (group A) and 30 normotensive pregnant patients (Group B) were blood flow of uterine, umbilical and fetal middle cerebral artery were analyzed. Pulsatility index, resistance index and systolic / diastolic ratio of each artery were analyzed. Treatment was 50 mg of sildenafil citrate twice a day (100 mg/day) per two days in preeclamptic group (Group A). Setting: Maternidad "Dr. Nerio Belloso". Hospital Central "Dr. Urquinaona". Maracaibo, Estado Zulia. Results: There were not significant statically differences related to maternal and gestational age (p = NS). Initial Doppler measurements showed statically significant differences when compared to normotensive control patients (P < 0.01). After the use of sildenafil in the group A, there was found a significant reduction in pulsatility ind
Doppler de las arterias uterinas, umbilical y cerebral media fetal en embarazada con amenaza de parto pretérmino tratada con nifedipina oral
Duly Torres-Cepeda,Eduardo Reyna-Villasmil,Jorly Mejía-Montilla,María Labarca-Acosta
Revista de Obstetricia y Ginecología de Venezuela , 2012,
Abstract: Objetivo: Determinar las modificaciones en Doppler de las arterias uterinas, umbilical y cerebral media fetal en embarazadas con amenaza de parto pretérmino tratada con nifedipina oral como tocolítico. Métodos: Se seleccionaron 50 pacientes con diagnóstico de amenaza de parto pretérmino. Las pacientes recibieron nifedipina a una dosis inicial de 30 mg sublinguales seguida por una dosis oral de 20 mg dos a cuatro veces al día. La dosis máxima fue de 120 mg cada 24 horas. Se midieron los índices de pulsatilidad, índice de resistencia y relación de flujo sistólico / diastólica de las arterias uterinas, umbilical y cerebral media fetal antes y después del tratamiento.Ambiente: Servicio de Ginecología y Obstetricia. Hospital Central "Dr. Urquinaona". Maracaibo, Estado Zulia. Resultados: La edad materna promedio al inicio del estudio fue de 26,9 ± 6,9 a os y la edad gestacional promedio fue de 30,3 ± 2,6 semanas. La duración promedio del tratamiento fue de 4,8 ± 1,5 días. No se encontraron diferencias estadísticamente significativas en los valores promedio de la frecuencia cardíaca materna y fetal, presión arterial sistólica, presión arterial diastólica antes y después del tratamiento con nifedipina oral (P = ns). No se encontraron diferencias significativas en los índices de pulsatilidad, índice de resistencia y relación de flujo sistólico / diastólica en las arterias uterinas, umbilical y cerebral media fetal antes y después del tratamiento con nifedipina oral (P = ns). Conclusión: El uso de nifedipina oral como tocolítico no produce modificaciones significativas en las mediciones Doppler de las arterias uterinas, umbilical y cerebral media fetal en embarazadas con amenaza de parto pretérmino. Objective: To determine modifications of Doppler of uterine, umbilical and fetal middle cerebral arteries in pregnant women with threatened pre-term labor treated with oral nifedipine as tocolytic agent. Methods: Fifty patients with diagnosis of threatened pre-term labor were selected. Patients received an initial dose of 30 mg of sub lingual nifedipine followed by an oral dose of 20 mg twice to four times a day. A maximum dosage was of 120 mg each 24 hours. The pulsatility index, resistance index and systolic/diastolic blood flow ratio of uterine, umbilical and fetal middle cerebral arteries were measured before treatment and after treatment. Setting: Servicio de Ginecologia y Obstetricia. Hospital Central "Dr. Urquinaona". Maracaibo, Estado Zulia. Results: Maternal mean age at beginning of study was 26.9 ± 6.9 years-old and gestational mean age was 30.3 ± 2.6 weeks.
Enfermedad de membrana hialina en recién nacidos de pacientes preeclámpticas
Helen De Nobrega-Correa,Eduardo Reyna-Villasmil,Joel antos-Bolívar,Jorly Mejía-Montilla
Revista de Obstetricia y Ginecología de Venezuela , 2012,
Abstract: Objetivo: Comparar la incidencia de la enfermedad de membrana hialina del recién nacido de pacientes preeclámpticas con embarazadas normotensas sanas. Métodos: Se realizó un estudio de cohortes en todas las pacientes con embarazos simples entre 24 y 36 más 5 semanas de gestación con fetos vivos en el período de enero de 1999 a septiembre de 2008. El diagnóstico de la enfermedad de membrana hialina se realizó por los criterios clínicos y radiológicos. Ambiente: Servicio de Ginecología y Obstetricia. Hospital Central “Dr. Urquinaona”. Maracaibo. Estado Zulia. Resultados: El número de recién nacidos con diagnóstico de enfermedad de membrana hialina durante el período de estudio fue de 2 491 casos, representando un 7,73 % de los recién nacidos vivos. Se encontraron 56 casos (11,24 %) de la enfermedad de membrana hialina en los recién nacidos de los casos de pacientes preeclámpticas y 206 recién nacidos (10,33 %) entre las pacientes controles (OR 1,098; IC 95 % 0,803 - 1,502). Al seleccionar los recién nacidos con edad gestacional menor de 32 semanas, se encontró en las pacientes preeclámpticas un total de 92 recién nacidos de los cuales 28 de ellos (30,43 %) desarrollaron enfermedad de membrana hialina, mientras que en el grupo de los controles se encontraron 261 recién nacidos de los cuales 70 (26,81 %) desarrollaron la enfermedad (OR 1,194; IC 95 % 0,708 - 2,012). Conclusión: No existe diferencia en la incidencia de la enfermedad de membrana hialina de recién nacido de pacientes preeclámpticas comparado con embarazadas normotensas. Objective: To compare the incidence of hyaline membrane disease in newborns of preeclamptic patients with normotensive pregnant patients. Method: A cohort study was done with all patients with single pregnancies between 24 + 0 and 36 + 5 weeks of gestation with live fetuses in the period January 1999 to September 2008. Diagnosis of hyaline membrane disease was done over clinical criteria. Setting: Servicio de Ginecologia y Obstetricia. Hospital Central “Dr. Urquinaona”. Maracaibo. Estado Zulia. Results: The number of newborn with diagnosis of hyaline membrane disease during the period was of 2 491 cases, representing 7.73 % of all live newborns. There were 56 cases (11.45 %) of hyaline membrane disease in newborn of cases and 206 newborns (10.33 %) between control patients (OR 1.098; 95 % IC 0.803 - 1.502). When newborn less than 32 weeks were selected, in preeclamptic patients, there were 92 newborns of whom 28 (30.43 %) developed hyaline membrane disease, while in control group there were found 70 of 261 newborns who develope
Resultante materno-perinatal en primigestas de 40 a?os o más
Villasmil,Eduardo Reyna; Guerra-Velásquez,Mery; Torres-Montilla,Marielys; Reyna-Villasmil,Nadia; Mejía-Montilla,Jorly;
Gaceta Médica de Caracas , 2006,
Abstract: summary the objective of the investigation was to determine obstetrical and perinatal complications of primigravid aged 40 and older. a prospective study comparing 98 primigravid aged 40 and older with a control group of 98 primigravid pregnant women aged between 20 and 29 years old assisted between january 2001 and march 2004 was performed. prenatal data, gestational age, delivery, type of delivery, birth weight, preterm labor, perinatal deaths, congenital malformations and small or large for gestational age, apgar scores at 1 and 5 minutes and presence of meconium in any moment during labor. history of infertility and obesity was significantly more common in the study group. complications like pregnancy-induced hypertension, malpresentation, second half of pregnancy hemorrhage and labor alterations occurred more frequently in primigravid aged 40 and older. the study group presented a higher significant rate of induced labor, use of oxytocin, malpresentation and cesarean section, preterm labor, low birth weight and small for gestational age newborns. it is concluded that although there was an increased in ante and during labor complications, perinatal evolution was affected by maternal age. their newborns presented a significant increase in the frecuency of complications
Homocisteína y óxido nítrico en preeclámpticas en pre y posparto
Reyna-Villasmil,Eduardo; Torres-Cepeda,Duly; Pe?a-Paredes,Elvia; Reyna-Villasmil,Nadia; Mejía-Montilla,Jorly;
Revista de Obstetricia y Ginecología de Venezuela , 2007,
Abstract: objectives: to compare the concentrations of homocysteine and nitric oxide in preeclamptic and normotensive pregnant women in pre and post-partum and to establish a relation between both compounds in the different studied periods. methods: groups consisted in 35 preeclamptic patients (group a) and 35 normotensive pregnant women (group b, controls). blood samples to determine homocysteine and nitric oxide concentrations were recollected before labor and seven days and six weeks after delivery. setting: maternidad "dr. nerio belloso", hospital central "dr. urquinaona", maracaibo. results: there were significant statically differences in gestational age at the moment of study, systolic and diastolic pressure, newborn weight and presence of proteinuria (p < 0.05). homocysteine concentrations during pre and post-partum were significantly higher in preeclamptic compared with group b (p < 0.05). in relation to nitric oxide concentrations, there were statically significant differences between group a and b in all studied periods (p < 0.05). there was also a significant negative strong correlation between homocysteine and nitric oxide previous to delivery, at seven days and six weeks of post-partum (p < 0.001). conclusions: preeclamptic presented higher concentrations of homocysteine and lower of nitric oxide compared to normotensive pregnant women with a negative strong correlation between them in pre and post-partum
Page 1 /461609
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.