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Search Results: 1 - 10 of 347296 matches for " Héctor Rubén; Castellanos-González "
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Chromoendoscopy with red phenol in the diagnosis of Helicobacter pylori infection Cromoendoscopia con rojo fenol en el diagnóstico de la infección por Helicobacter pylori
Héctor Rubén Hernández-Garcés,ctor V. Castellanos-González,Licet González-Fabián,Mirtha Infante-Velázquez
Revista Espa?ola de Enfermedades Digestivas , 2012,
Abstract: An analytic study to validate a diagnostic test was carried out at the Institute of Gastroenterology in Havana, Cuba in adult patients of both sexes in whom chromoendoscopy was carried out with red phenol at 0.1% over the gastric mucosa for the detection of Helicobacter pylori infection between November 2008 and December 2010. The staining with red phenol at 0.1% is included in the invasive tests for the diagnosis of Helicobacter pylori infection and of the reactive techniques. The sensibility of red phenol dye in the diagnosis of Helicobacter pylori infection in the patients studied was of 72.6% with a confidence interval (C.I.) of 95% (64.9 to 79.2%) and a specificity of 75.5% C.I. 95% (61.9 to 85.4%). The positive predictive value was of 89.8% C.I. 95% (83.1 to 94.1%) and the negative predictive value of 48.1% C.I. 95% (37.3 to 59.0%). The proportion of false positives was of 24.5% C.I. 95% (14.6 to 38.1%) and the proportion of false negatives was of 27.4% C.I. 95% (20.8 to 35.1%). The diagnostic accuracy of the dye on the patients studied was 73.3% C.I. 95% (66.7 to 79.0%). The diagnostic odds ratio was 8.17 C.I. 95% (3.88 to 17.23), the J Youden ratio of 0.5 and the Kappa coefficient of 0.40 C.I. 95% (0.27 to 0.54). The staining dye with red phenol at 0.1% resulted in a useful method in the diagnosis of Helicobacter pylori infection in the gastric mucosa,it can be applied in our environment and has multiple advantages (topographic localization, avoids contamination and fast and immediate reading). Se realizó un estudio analítico de validación de prueba diagnóstica a pacientes adultos de ambos sexos, en el Instituto de Gastroenterología de La Habana. Cuba, a los cuales se les realizó cromoendoscopia con rojo fenol al 0,1% sobre la mucosa gástrica para la detección de infección por Helicobacter pylori, entre noviembre de 2008 y diciembre de 2010. La tinción con rojo fenol al 0,1% se encuentra dentro de las pruebas invasivas para la detección de la infección por H. pylori y de las llamadas técnicas reactivas. La sensibilidad de la tinción con rojo fenol en el diagnóstico de la infección por Helicobacter pylori en los pacientes estudiados fue del 72,6%. IC 95% (64,9 a 79,2%) y la especificidad del 75,5%. IC 95% (61,9 a 85.4%). El valor predictivo positivo fue del 89,8%. IC 95% (83,1 a 94,1%) y el valor predictivo negativo del 48,1%. IC 95% (37,3 a 59,0%). La proporción de falsos positivos fue de 24,5%. IC 95% (14,6 a 38,1%) y la proporción de falsos negativos de 27,4%. IC 95% (20,8 a 35,1%). La exactitud diagnóstica de la tinción en los pacientes estud
Chromoendoscopy with red phenol in the diagnosis of Helicobacter pylori infection
Hernández-Garcés,Héctor Rubén; Castellanos-González,ctor V.; González-Fabián,Licet; Infante-Velázquez,Mirtha; Pe?a,Kevin; Andrain-Sierra,Yudit;
Revista Espa?ola de Enfermedades Digestivas , 2012, DOI: 10.4321/S1130-01082012000100002
Abstract: an analytic study to validate a diagnostic test was carried out at the institute of gastroenterology in havana, cuba in adult patients of both sexes in whom chromoendoscopy was carried out with red phenol at 0.1% over the gastric mucosa for the detection of helicobacter pylori infection between november 2008 and december 2010. the staining with red phenol at 0.1% is included in the invasive tests for the diagnosis of helicobacter pylori infection and of the reactive techniques. the sensibility of red phenol dye in the diagnosis of helicobacter pylori infection in the patients studied was of 72.6% with a confidence interval (c.i.) of 95% (64.9 to 79.2%) and a specificity of 75.5% c.i. 95% (61.9 to 85.4%). the positive predictive value was of 89.8% c.i. 95% (83.1 to 94.1%) and the negative predictive value of 48.1% c.i. 95% (37.3 to 59.0%). the proportion of false positives was of 24.5% c.i. 95% (14.6 to 38.1%) and the proportion of false negatives was of 27.4% c.i. 95% (20.8 to 35.1%). the diagnostic accuracy of the dye on the patients studied was 73.3% c.i. 95% (66.7 to 79.0%). the diagnostic odds ratio was 8.17 c.i. 95% (3.88 to 17.23), the j youden ratio of 0.5 and the kappa coefficient of 0.40 c.i. 95% (0.27 to 0.54). the staining dye with red phenol at 0.1% resulted in a useful method in the diagnosis of helicobacter pylori infection in the gastric mucosa,it can be applied in our environment and has multiple advantages (topographic localization, avoids contamination and fast and immediate reading).
Enemigos naturales de escamas armadas (Hemiptera: Diaspididae) en aguacate Hass en Michoacán, México Natural enemies of armored scale (Hemiptera: Diaspididae) on avocado Hass in Michoacan Mexico
CARLOS LáZARO-CASTELLANOS,HéCTOR GONZáLEZ-HERNáNDEZ,J. REFUGIO LOMELI-FLORES,SVETLANA N. MYARTSEVA
Revista Colombiana de Entomología , 2012,
Abstract: Se identificaron enemigos naturales asociados a escamas armadas en aguacate Hass, y el porcentaje de parasitoidismo en ramas y frutos. Los muestreos se realizaron en huertas certificadas para exportación en Michoacán, México. De julio de 2009 a septiembre de 2010 se colectaron quincenalmente escamas armadas y sus entomófagos en cinco huertos, mientras que en nueve se realizaron muestreos bimestrales (mayo a septiembre) para determinar niveles de parasitoidismo. En cada muestreo se contó por especie el total de escamas vivas y parasitadas por estadio. Se identificaron tres especies de escamas armadas Hemiberlesia lataniae, Abgrallaspis aguacate y Hemiberlesia rapax, las cuales infestan hojas, ramas y frutos, que se presentaron en diez, seis y dos huertas, respectivamente. Los entomófagos identificados fueron: Encarsia citrina, presente en diez huertas y la más abundante con 108 especímenes, Encarsia juanae en cuatro huertas, y con 69 especímenes colectados, Plagiomerus nr. diaspidis con cuatro huertas, y 65 especímenes, Signiphora nr. borinquensis con seis huertas y 23 especímenes, Marietta mexicana en una huerta con cinco especímenes, Aphytis sp. presente en una huerta con dos especímenes y Chilocorus cacti en dos huertas con cinco especímenes. El porcentaje de parasitoidismo fue mayor en ramas que en frutos y aumentó en los meses de julio y septiembre de 2010, influenciado posiblemente por mayores temperaturas y humedad relativa. Encarsia citrina es el parasitoide con mejor perspectiva en manejo de escamas armadas debido a que parasita las tres especies de escamas armadas, tiene mayor distribución, abundancia, y está presente la mayor parte del a o. Natural enemies associated to armored scales on avocado Hass, and the percentage of parasitoidism on branches and fruits were recorded. The study was conducted on 14 avocado Hass orchards certified for exportation in the State of Michoacan, Mexico. From July 2009 to September 2010, armored scales and their entomophagous were collected in five orchards biweekly; meanwhile, in nine different orchards, levels of parasitoidism on armored scales were assessed bimonthly (from May to September 2010). The totals of scales species alive and parasitized scales per stage were recorded for each sample. The armored scales Hemiberlesia lataniae, Abgrallaspis aguacatae and Hemiberlesia rapax were found infesting avocado leaves, branches and fruits. These armored scales were collected in ten, six, and two orchards respectively. The entomophagous insects recognized were Encarsia citrina present in 10 orchards and the most a
Tratamiento quirúrgico de la achalasia de esófago en estadio avanzado
DíAZ DE LIA?O A,áLVARO; ARTIEDA S,CRISTINA; AGUILAR Z,RUBéN; YáRNOZ I,CONCEPCIóN; VIANA H,SHERBOURNE; FERNáNDEZ R,LORANS; GONZáLEZ A,GREGORIO; ORTIZ H,HéCTOR;
Revista chilena de cirugía , 2008, DOI: 10.4067/S0718-40262008000600005
Abstract: esophageal excisión is recommended in advanced stages of achalasia, when the esophagus acquires a sigmoid morphology. we report four patients with achalasia aged 59, 60, 66 and 67 years (two males) that were treated with esophagectomy, gastroplasty and cervical anastomosis. three were operated using a trasnhiatal approach and one required a thoracotomy. in the postoperative period, two patients had a pleural effusion, two had transient dysphonia and one had an eventration. after a follow up ranging from two to 11 years, all are asymptomatic.
Notas e resenhas
Héctor Hernán González Osorio
Revista Paranaense de Desenvolvimento , 1994,
Abstract: Empowerment: The politics of Alternative Development, de John Friedmann. Cambridge, Blackwell Publishers, 1992, 205 p.
Notas e resenhas
Héctor Hernán González Osorio
Revista Paranaense de Desenvolvimento , 1994,
Abstract: Quest es relativas ao papel do Estado na constru o da sociedade e sua economia n o foram objeto de artigo específico neste primeiro número, raz o pela qual estas Notas e Resenhas s o dedicadas a dois assuntos dessa área: "Encontro Nacional Fuunn o Pública, Estado e Sociedade", realizado em Brasília de 25 a 29 de abril de 1994, e o livro Reinventando o Governo, de David Osborne e Ted Gaebler.
O velho e o novo na quest o social: notas sobre a importancia do planejamento
Héctor Hernán González Osorio
Revista Paranaense de Desenvolvimento , 1998,
Abstract: Uma análise das mudan as que estudos recentes apontam com rela o à natureza da quest o social do Brasil mostra que as novidades est o muito mais no "como" do que no "que" fazer. As causas dos problemas sociais do país s o amplamente conhecidas e, nesse sentido, n o há grandes novidades quanto aos conteúdos e à necessidade de interven es em dois níveis: o dos programas emergenciais de combate à miséria e o das políticas públicas de médio e longo prazo em seus diversos aspectos setoriais.
EVALUACIóN DE LA APLICACIóN DE LA TABLA DE CRECIMIENTO NACIONAL EN LA ECOGRAFíA RUTINARIA DURANTE EL PERíODO 22 A 26 SEMANAS, EN 1162 ECOGRAFíAS
González G.,Rubén; Dezerega P.,ctor; Vásquez M.,Ricardo;
Revista chilena de obstetricia y ginecología , 2005, DOI: 10.4067/S0717-75262005000400002
Abstract: we evaluate the application of the fetal growth chart of the perinatal guidelines (chilean public health ministry) in our routine 22 - 26 weeks ultrasound examination of pregnant women, developed in a public primary care facility. during 2 years (february 2003 to january 2005) we performed prospectively 1162 ultrasound examination by a single operator. the mean gestational age was 24 ± 1.2 weeks. for study purposes, we consider only singleton pregnancies: 1159 examinations. we evaluate all fetuses under 10 percentile and we compared them with other reference charts. we conclude that the perinatal guideline should be applied only from 24 weeks onwards. between 22 - 24 weeks we recommended hadlock charts
CONTRIBUCIóN DE LA ECOGRAFíA RUTINARIA EN EL PERíODO 22 A 26 SEMANAS AL DIAGNóSTICO DE ANOMALíAS CONGéNITAS: EXPERIENCIA DE 2 A?OS, EN 1162 ECOGRAFíAS
González G.,Rubén; Dezerega P.,ctor; Vásquez M.,Ricardo;
Revista chilena de obstetricia y ginecología , 2005, DOI: 10.4067/S0717-75262005000500003
Abstract: we evaluate the contribution in the diagnosis of fetal structural abnormalities of a routine 22-26 week ultrasound examination program, applied to low risk population in a community ultrasound unit, primary care center. during 2 years (feb 2003 - jan 2005) we prospectively study 1162 ultrasound examination performed by a single operator. the mean gestational age was 24 ± 1.2 weeks. the sensitivity was 51.3% for the detection of mayor fetal structural abnormalities. the application of routine ultrasound examination between 22-26 weeks improves significantly the detection rate of fetal malformations. therefore, we suggest the application of a second ultrasound examination during this period (22-26 weeks) to be extended to all primary care in the country
EVALUACIóN DE LA APLICACIóN DE LA TABLA DE CRECIMIENTO NACIONAL EN LA ECOGRAFíA RUTINARIA DURANTE EL PERíODO 22 A 26 SEMANAS, EN 1162 ECOGRAFíAS
Rubén González G.,ctor Dezerega P.,Ricardo Vásquez M.
Revista Chilena de Obstetricia y Ginecología , 2005,
Abstract: Se evalúa la aplicación de la Tabla de Crecimiento Fetal de la Guía Perinatal del Ministerio de Salud Pública de Chile, durante un Programa de Ecografía Rutinaria, en el período de 22 a 26 semanas, desarrollado en una Unidad de Ecografía Comunal de un consultorio de atención primaria dependiente del Servicio de Salud Metropolitano Sur. El estudio abarca 2 a os (febrero de 2003 a enero de 2005), período en el cual se efectuaron 1.162 ecografías, por operador único. La edad gestacional promedio fue 24 ± 1,2 semanas. Se consideran para el estudio 1.159 fetos únicos. Evaluamos la frecuencia de fetos bajo el percentil 10 para cada semana de gestación, y se compara con otras tablas de referencia nacional y extranjeras. La tabla nacional debiera aplicarse desde la semana 24 en adelante. Bajo este período, recomendamos continuar aplicando la curva de Hadlock We evaluate the application of the fetal growth chart of the Perinatal Guidelines (Chilean Public Health Ministry) in our routine 22 - 26 weeks ultrasound examination of pregnant women, developed in a public primary care facility. During 2 years (February 2003 to January 2005) we performed prospectively 1162 ultrasound examination by a single operator. The mean gestational age was 24 ± 1.2 weeks. For study purposes, we consider only singleton pregnancies: 1159 examinations. We evaluate all fetuses under 10 percentile and we compared them with other reference charts. We conclude that the Perinatal Guideline should be applied only from 24 weeks onwards. Between 22 - 24 weeks we recommended Hadlock charts
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