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Search Results: 1 - 10 of 515471 matches for " C. Dávalos Cobián "
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Efecto de la administración de indometacina rectal sobre los niveles séricos de amilasa posteriores a colangiopancreatografía retrógrada endoscópica y su impacto en la aparición de episodios de pancreatitis secundaria Effect of the rectal administration of indomethacin on amylase serum levels after endoscopic retrograde cholangiopancreatography, and its impact on the development of secondary pancreatitis episodes
A. Monta?o Loza,X. Rodríguez Lomelí,J. E. García Correa,C. Dávalos Cobián
Revista Espa?ola de Enfermedades Digestivas , 2007,
Abstract: Introducción: hiperamilasemia y pancreatitis aguda representan las complicaciones mayores más frecuentes posteriores a colangiopancreatografía retrógrada endoscópica (CPRE), apareciendo en 1-30% de los casos. Objetivo: determinar la incidencia de hiperamilasemia y pancreatitis posterior a CPRE y evaluar la utilidad de indometacina rectal para la prevención de estos. Material y métodos: ensayo clínico controlado. Durante un periodo de 12 meses se incluyeron 150 pacientes. Estos fueron divididos en grupo de estudio (n = 75), a quienes se administró indometacina rectal 100 mg 2 horas previas al procedimiento, y control (n = 75) que recibió glicerina. Dos horas posteriores a la CPRE se determinó el nivel de amilasa sérica y se clasificaron en: 0 ≤ 150 UI/l, 1 = 151-599 UI/l, 2 ≥ 600 UI/l. Los episodios de pancreatitis clínica se cuantificaron y clasificaron de acuerdo a los criterios de Ranson. Resultados: distribución por género: 100 mujeres y 50 hombres. Edad media: 55,37 ± 18,0 para el grupo de estudio y 51,1 ± 17,0 para el control. El diagnóstico de patología benigna se presentó en 56 (74,7%) casos del grupo de estudio y 59 (78,7%) del control. Posterior al procedimiento, 13 (17,3%) pacientes del grupo experimental y 28 (37,3%) del control desarrollaron hiperamilasemia (p < 0,05). Se encontró hiperamilasemia > 600 UI/l en 3 pacientes del grupo de estudio y 10 del control (p = 0,001). Se detectó pancreatitis leve en 5,3% de los pacientes del grupo de estudio y 16% del control (p < 0,05). No hubo mortalidad ni eventos adversos. Conclusiones: indometacina rectal previo a CPRE disminuye el riesgo de hiperamilasemia y pancreatitis. La indometacina es accesible, de bajo costo con mínimos o nulos efectos secundarios. Background: hyperamylasemia and acute pancreatitis represent the most frequent major complication after endoscopic retrograde cholangiopancreatography (ERCP), developing in 1-30% of cases. Objective: to determine the incidence of hyperamylasemia and acute pancreatitis after ERCP, and to assess the utility of rectal indomethacin to prevent these events. Material and methods: a randomized clinical trial. During a 12-month period 150 patients were included. They were divided up into a study group (n = 75), where 100 mg of rectal indomethacin were administered 2 hours prior to the procedure, and a control group (n = 75), which received rectal glycerin. Two hours after ERCP serum amylase levels were measured and classified as follows: 0 ≤ 150 IU/L, 1 = 151-599 IU/L, 2 ≥ 600 IU/L. Clinical pancreatitis episodes were quantified and classified according t
Efecto de la administración de indometacina rectal sobre los niveles séricos de amilasa posteriores a colangiopancreatografía retrógrada endoscópica y su impacto en la aparición de episodios de pancreatitis secundaria
Monta?o Loza,A.; Rodríguez Lomelí,X.; García Correa,J. E.; Dávalos Cobián,C.; Cervantes Guevara,G.; Medrano Mu?oz,F.; Fuentes Orozco,C.; González Ojeda,A.;
Revista Espa?ola de Enfermedades Digestivas , 2007, DOI: 10.4321/S1130-01082007000600005
Abstract: background: hyperamylasemia and acute pancreatitis represent the most frequent major complication after endoscopic retrograde cholangiopancreatography (ercp), developing in 1-30% of cases. objective: to determine the incidence of hyperamylasemia and acute pancreatitis after ercp, and to assess the utility of rectal indomethacin to prevent these events. material and methods: a randomized clinical trial. during a 12-month period 150 patients were included. they were divided up into a study group (n = 75), where 100 mg of rectal indomethacin were administered 2 hours prior to the procedure, and a control group (n = 75), which received rectal glycerin. two hours after ercp serum amylase levels were measured and classified as follows: 0 ≤ 150 iu/l, 1 = 151-599 iu/l, 2 ≥ 600 iu/l. clinical pancreatitis episodes were quantified and classified according to ranson's criteria. results: gender distribution: 100 women and 50 men. mean age: 55.37 ± 18.0 for the study group, and 51.1 ± 17.0 for the control group. a diagnosis of benign pathology was present in 56 (74.7%) cases in the study group, and 59 (78.7%) controls. after ercp 13 (17.3%) patients in the study group and 28 (37.3%) in the control group developed hyperamylasemia (p ≤ 0.05). hyperamylasemia > 600 iu/l was found in 3 patients in the study group, and in 10 in the control group (p = 0.001). mild pancreatitis was detected in 4 (5.3%) patients in the study group, and in 12 (16%) patients in the control group (p = 0.034). there were no deaths or adverse drug reactions. conclusions: rectal indomethacin before ercp decreases the risk of hyperamylasemia and pancreatitis. indomethacine is a feasible, low-cost drug with minimal or nil side effects.
Triage: Experiencia en un Servicio de Urgencias Pediátricas
MEDINA,J; GHEZZI,C; FIGUEREDO,D; LEóN,D; ROJAS,G; CáCERES,L; KEGLER,J; ORUE,C; DáVALOS,H; CANATA,M; RECALDE,L;
Revista chilena de pediatría , 2007, DOI: 10.4067/S0370-41062007000200015
Abstract: triage: experience in a pediatric emergency service introduction: triage systems are a way to organize emergency services, taking the number of patients, urgency of the clinical situation and available resources into account, in order to improve access to emergency medical care and decrease waiting times. objectives: to evaluate the results of the application of a triage system in the pediatric emergency service of the hospital central del instituto de previsión social (hcips). design and methods: observational, descriptive, prospective study including 1 122 children seen in july 2005, between 7am and 4pm from monday to friday. data were taken from computer records and analyzed using microsoft excel. a list was drawn up of diseases and signs and/or symptoms to be considered urgent due to severity or risk of death, the number of patients and their frequency at the hospital. those requiring immediate care were categorized priority 1 (p1), and the remainder were called priority 2 (p2). thirty minutes was designated as the cut-off point for evaluating the more severely ill patients. results: total number of patients designated p1: 272/1 122(24%), p2: 850/1 122 (76%). median waiting time for p1: 10 min, p25 - p75 (5-13min) maximum waiting time was 65 min. for p2 median was 65 min p25 -p75 (20-139 min) maxmum waiting time 300 min. the proportion of patients seen within 30 minutes was p1: 79 %; p2: 36%. patients were admitted according to priority: p1: 25/272 (9%), none of p2. conclusion: the implementation of a triage system in the pediatric emergency service of the hcips showed that one quarter of patients coming to the service were considered emergencies. presumably, and given the similarity in chief complaints, most cases were patients who had not been able to see a physician in the out patient clinic that day. over three fourths of all emergency patients were seen within thirty minutes
Dermatite epidêmica por Paederus irritans em Piura, Perú, 1999, relacionada ao fen?meno El Ni?o
Alva-Dávalos, Victor;Laguna-Torres, Victor Alberto;Huamán, A.;Olivos, R.;Chávez, M.;García, C.;Mendoza, N.;
Revista da Sociedade Brasileira de Medicina Tropical , 2002, DOI: 10.1590/S0037-86822002000100005
Abstract: the phenomen el ni?o that affected peru at 1998, made possible the growth of copious vegetation in traditionally dry places. on this way, paederus irritans, dipterous of the order coleoptera that produces dermatitis when croushed on the skin, found substract that allowed the natural growth of its population. the coming of occasional rains on the months of february to april 1999, attacked the habitat of this insect, that looked for urban areas, exposing seriously the general population of piura on north perú to the contact. during february and may 1,451 cases of dermatitis caused by paederus irritans, called latigazo because of its linear and eritematous characteristic lesions on the skin, were notified at piura. the more affected body areas were head (56.6%) and neck (30.9%), but there were also cases of conjunctivitis and genital injuries, because of hands contamination.
Estructuración del precio de un menú
Raúl Baldeón Dávalos
Enfoque UTE , 2010,
Abstract: Espa ol: El presente trabajo propone un procedimiento claro y sencillo para establecer el costo de producción y el precio de venta de un menú.Para establecer el precio se aplicó mecanismos de cálculo tales como, agregando un porcentaje a los costos unitarios totales y mediante un modelo de maximización de utilidades. Sin embargo será el propietario del negocio quien determine cual método aplicar dada la estructura de sus costos y el tama o del negocio.Se presenta un ejemplo aplicado a una microempresa dedicada a la producción y venta de sánduches, refrescos y aguas aromáticas.
Structural Integrity of the Contralesional Hemisphere Predicts Cognitive Impairment in Ischemic Stroke at Three Months
Rosalia Dacosta-Aguayo, Manuel Gra?a, Marina Fernández-Andújar, Elena López-Cancio, Cynthia Cáceres, Núria Bargalló, Maite Barrios, Immaculada Clemente, Pere Toran Monserrat, Maite Alzamora Sas, Antoni Dávalos, Tibor Auer, Maria Mataró
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0086119
Abstract: After stroke, white matter integrity can be affected both locally and distally to the primary lesion location. It has been shown that tract disruption in mirror’s regions of the contralateral hemisphere is associated with degree of functional impairment. Fourteen patients suffering right hemispheric focal stroke (S) and eighteen healthy controls (HC) underwent Diffusion Weighted Imaging (DWI) and neuropsychological assessment. The stroke patient group was divided into poor (SP; n = 8) and good (SG; n = 6) cognitive recovery groups according to their cognitive improvement from the acute phase (72 hours after stroke) to the subacute phase (3 months post-stroke). Whole-brain DWI data analysis was performed by computing Diffusion Tensor Imaging (DTI) followed by Tract Based Spatial Statistics (TBSS). Assessment of effects was obtained computing the correlation of the projections on TBSS skeleton of Fractional Anisotropy (FA) and Radial Diffusivity (RD) with cognitive test results. Significant decrease of FA was found only in right brain anatomical areas for the S group when compared to the HC group. Analyzed separately, stroke patients with poor cognitive recovery showed additional significant FA decrease in several left hemisphere regions; whereas SG patients showed significant decrease only in the left genu of corpus callosum when compared to the HC. For the SG group, whole brain analysis revealed significant correlation between the performance in the Semantic Fluency test and the FA in the right hemisphere as well as between the performance in the Grooved Pegboard Test (GPT) and theTrail Making Test-part A and the FA in the left hemisphere. For the SP group, correlation analysis revealed significant correlation between the performance in the GPT and the FA in the right hemisphere.
Primer registro de Ripartitella brasiliensis (Fungi, Agaricales) en México
Laura Guzmán Dávalos,Gastón Guzmán
Acta botánica mexicana , 1988,
Abstract:
El polimetilmetacrilato en la reconstrucción craneofacial
Pe?ón Vivas,Pedro ángel; Casanova Díaz,Consuelo Pilar; Guerra Cobián,Orlando;
Revista Cubana de Estomatolog?-a , 2011,
Abstract: the repair of craniofacial defects is a challenge for the maxillofacial surgeon. there are a great range of materials for reconstruction, where each has advantages and disadvantages as well as indications for its use. polymethylmethacrylate is an economic and effective option in the reconstruction of craniofacial defects. the objective of present paper is to conduct a non-comparative, retrospective and descriptive study in the maxillofacial surgery service of the "miguel enriquez" university hospital from january, 2006 to december, 2008 including a total of 14 patients operated on to repair a craniofacial defect using polymethylmethacrylate. the great number of patients operated on to repair a craniofacial defect using polymethylmethacrylate included the 16-25 age groups. there was predominance of male sex and a great involvement in white patients. in all the study cases the deformity origin was of traumatic origin; where the traffic accidents were the more prevalent ones, followed by those caused by violence. the predominant diagnosis was that of the iv grade orbitomalar fractures being the orbital floor the more repaired structure. the only complications present were the infection and the subcutaneous collection. the polymethylmethacrylate is an economic and effective material allowing obtaining of excellent esthetic and functional results in the repair of acquired craniofacial defects.
El polimetilmetacrilato en la reconstrucción craneofacial The polymethylmethacrylate in the craniofacial repair
Pedro ángel Pe?ón Vivas,Consuelo Pilar Casanova Díaz,Orlando Guerra Cobián
Revista Cubana de Estomatolog?-a , 2011,
Abstract: La reconstrucción de defectos craneofaciales constituye un reto para el cirujano maxilofacial. Si bien existe una amplia gama de materiales para la reconstrucción, cada cual tiene ventajas y desventajas además de indicaciones para su utilización. Por lo que nos hemos dado a la tarea de emplear el polimetilmetacrilato como una opción económica y efectiva en la reconstrucción de defectos craneofaciales. Con este objetivo se realizó un estudio descriptivo, retrospectivo, no comparativo, en el Servicio de Cirugía Maxilofacial del Hospital Universitario "Miguel Enríquez" en el periodo comprendido desde enero de 2006 a diciembre de 2008. Se incluyeron un total de 14 pacientes, los cuales recibieron tratamiento quirúrgico para la reconstrucción craneofacial mediante el empleo del polimetilmetacrilato. El mayor número de pacientes que recibieron tratamiento quirúrgico para la reconstrucción craneofacial con polimetilmetacrilato se encontró en el grupo de 16 a 25 a os de edad, con un predominio del sexo masculino y mayor afectación de los pacientes de color de piel blanca. En todos los casos estudiados la etiología de la deformidad fue traumática; dentro de ellos el mayor por ciento le correspondió a los accidentes viales, seguido de los causados por violencia. El diagnóstico que predominó fue el de las fracturas orbitomalares de grado IV. El piso de órbita fue la localización o estructura más reconstruida. Se presentaron únicamente como complicaciones, la infección y la colección subcutánea. El polimetilmetacrilato es un material económico y efectivo que permite obtener excelentes resultados estéticos y funcionales en la reconstrucción de defectos craneofaciales adquiridos. The repair of craniofacial defects is a challenge for the maxillofacial surgeon. There are a great range of materials for reconstruction, where each has advantages and disadvantages as well as indications for its use. Polymethylmethacrylate is an economic and effective option in the reconstruction of craniofacial defects. The objective of present paper is to conduct a non-comparative, retrospective and descriptive study in the Maxillofacial Surgery Service of the "Miguel Enriquez" University Hospital from January, 2006 to December, 2008 including a total of 14 patients operated on to repair a craniofacial defect using polymethylmethacrylate. The great number of patients operated on to repair a craniofacial defect using polymethylmethacrylate included the 16-25 age groups. There was predominance of male sex and a great involvement in white patients. In all the study cases the deformity origin
Efecto de los nudos sobre la resistencia y rigidez en flexión de la madera de pino
Dávalos Sotelo, Raymundo;Limón Godina, Roberto;
Ciencia forestal en México , 2009,
Abstract: this study was conducted to establish the influence of several parameters such as the knot area ratio (kar), the basic density or specific gravity (sg) and the modulus of elasticity (moe) on the bending properties of a sample of 17 pieces of durango pine wood supplied by a local company. bending strength (mor) and modulus of elasticity test results on 50 × 50 × 760 mm specimens are presented in this paper. test results were adjusted to (mc) of 12%. the test results indicate that both the basic density and the knot area ratio have similar ability to predict bending strength and thus, both have similar potential to develop grading rules that could be reasonably applied to structural pine wood. the statistical correlation improves if the stress is measured in the section where the largest knot is present. the prediction model improves substantially if in addition to kar, the specific gravity is included in the regression equation and, even better results are obtained if modulus of elasticity is also included in a multiple regression equation. this suggests that a combination visual-mechanical grading method might be the best option for grading mexican pine wood.
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