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1.
Micromachines (Basel) ; 13(12)2022 Dec 16.
Article in English | MEDLINE | ID: mdl-36557532

ABSTRACT

This research presents the design of time-modulated antenna arrays with UWB performance. The antenna arrays consider a linear topology with eight UWB disk-notch patch antennas. The technological problem is to find out the optimum antenna positions and/or time sequences to reduce the side lobes and the sidebands in all of the UWB frequency ranges. The design process is formulated as a bacterial foraging optimization. The results show that the uniform array generates a better SLL performance whereas the non-uniform array obtains a wider bandwidth. The uniform array obtains an SLL < −20 dB from 3.37 GHz to 4.8 GHz and the non-uniform array generates an SLL < −7 dB from 2.97 GHz to 5.26 GHz. The sideband levels are very similar for both cases with a value of around −17 dB.

2.
Clín. investig. arterioscler. (Ed. impr.) ; 34(1): 36-55, ene.-feb. 2022. tab, ilus
Article in Spanish | IBECS | ID: ibc-203140

ABSTRACT

El presente documento es una actualización de las recomendaciones de práctica clínica para el manejo de los factores de riesgo cardiovascular (FRCV) en la diabetes mellitus. Este consenso ha sido elaborado por los miembros del Grupo de Riesgo Cardiovascular de la Sociedad Española de Diabetes (SED). El trabajo es una actualización necesaria, ya que desde la última revisión hace tres años, son numerosos los ensayos clínicos que han estudiado los resultados cardiovasculares de distintos fármacos en la población diabética. La presente actualización de la guía creemos que puede ser interés para todos aquellos clínicos que tratan a pacientes con diabetes.


This document is an update to the clinical practice recommendations for the management of cardiovascular risk factors (CVRF) in diabetes mellitus. The consensus has been developed by a multidisciplinary team made up of members of the Cardiovascular Risk Group of the Spanish Diabetes Society (SED). The work is a necessary update as, since the last review three years ago, there have been many clinical trials that have studied the cardiovascular outcomes of numerous drugs in the diabetic population.We believe that this guideline update may be of interest to all clinicians treating patients with diabetes.


Subject(s)
Humans , Health Sciences , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/etiology , Cardiovascular Diseases/prevention & control , Diabetes Mellitus/therapy , Risk Factors
3.
Clin Investig Arterioscler ; 34(1): 36-55, 2022.
Article in English, Spanish | MEDLINE | ID: mdl-34330545

ABSTRACT

This document is an update to the clinical practice recommendations for the management of cardiovascular risk factors (CVRF) in diabetes mellitus. The consensus has been developed by a multidisciplinary team made up of members of the Cardiovascular Risk Group of the Spanish Diabetes Society (SED). The work is a necessary update as, since the last review three years ago, there have been many clinical trials that have studied the cardiovascular outcomes of numerous drugs in the diabetic population. We believe that this guideline update may be of interest to all clinicians treating patients with diabetes.


Subject(s)
Cardiovascular Diseases , Diabetes Mellitus , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/etiology , Cardiovascular Diseases/prevention & control , Diabetes Mellitus/therapy , Heart Disease Risk Factors , Humans , Risk Factors
4.
Article in English | MEDLINE | ID: mdl-34948868

ABSTRACT

Low-grade systemic inflammation leads to critical alterations of several tissues and organs that can promote the appearance of non-communicable diseases, a risk that is increased in adults with obesity. Exercise training may counteract low-grade systemic inflammation, but there is a lack of consensus on how cytokines are modulated by training in adults with obesity. This study aimed of examining the effects of exercise training on circulating pro- and anti-inflammatory cytokines in adults with overweight and obesity, and whether exercise-induced fat mass reduction could mediate that effect. The search was conducted on Medline (Pubmed), SPORTDiscus and Web of Science databases from January 1998 to August 2021, using keywords pertaining to inflammation, exercise, and obesity. A total of 27 studies were selected, in which the circulating concentration levels of cytokines were analyzed. Endurance training (ET) decreased circulating CRP, IL-6 and TNF-α levels. TNF-α was reduced after resistance and concurrent training (CT), while IL-10 increased after resistance training (RT). Changes in IL-10 and CRP coincided with fat mass reduction, while decreased TNF-α levels were concomitant with changes in IL-6 and IL-10. Exercise training may reduce systemic low-grade inflammation profile in adults with overweight and obesity.


Subject(s)
Overweight , Resistance Training , Adult , Exercise , Humans , Inflammation , Obesity/therapy , Overweight/therapy
5.
Clín. investig. arterioscler. (Ed. impr.) ; 30(3): 137-153, mayo-jun. 2018. tab
Article in Spanish | IBECS | ID: ibc-175429

ABSTRACT

El presente documento es una actualización de las recomendaciones de práctica clínica para el manejo de los factores de riesgo cardiovascular en la diabetes mellitus. Este consenso está elaborado por los miembros del Grupo de Riesgo Cardiovascular de la Sociedad Española de Diabetes (SED). Se han propuesto y actualizado las intervenciones sobre el estilo de vida, tratamiento farmacológico indicado para alcanzar los objetivos terapéuticos según los niveles de HbA1c, grado de obesidad, hipertensión arterial, hiperlipemia, insuficiencia cardiaca, antiagregación plaquetaria, insuficiencia renal y diabetes en el anciano, así como nuevos biomarcadores de interés en la evaluación del riesgo cardiovascular. El trabajo es una actualización de las intervenciones y objetivos terapéuticos; además, se señala la necesidad de la inclusión de los especialistas en Endocrinología, Metabolismo y Nutrición en las Unidades de Rehabilitación Cardiaca para el control y seguimiento de esta población


This document is an update to the clinical practice recommendations for the management of cardiovascular risk factors in diabetes mellitus. The consensus is made by members of the Cardiovascular Risk Group of the Spanish Diabetes Society. We have proposed and updated interventions on lifestyle, pharmacological treatment indicated to achieve therapeutic objectives according to the levels of HbA1c, degree of obesity, hypertension, hyperlipidemia, heart failure, platelet antiagregation, renal insufficiency, and diabetes in the elderly, as well as new biomarkers of interest in the evaluation of cardiovascular risk in individuals with diabetes mellitus. The work is an update of the interventions and therapeutic objectives in addition, it is noted the need for the inclusion of specialists in Endocrinology, Metabolism and Nutrition in Cardiac Rehabilitation Units for the control and monitoring of this population


Subject(s)
Humans , Aged , Diabetes Complications/prevention & control , Cardiovascular Diseases/prevention & control , Diabetes Mellitus/physiopathology , Risk Factors , Life Style , Obesity, Morbid/surgery , Blood Glucose/analysis , Hypertension , Hyperlipidemias/drug therapy , Renal Insufficiency, Chronic/drug therapy , Aged
6.
Clin Investig Arterioscler ; 30(3): 137-153, 2018.
Article in English, Spanish | MEDLINE | ID: mdl-29754804

ABSTRACT

This document is an update to the clinical practice recommendations for the management of cardiovascular risk factors in diabetes mellitus. The consensus is made by members of the Cardiovascular Risk Group of the Spanish Diabetes Society. We have proposed and updated interventions on lifestyle, pharmacological treatment indicated to achieve therapeutic objectives according to the levels of HbA1c, degree of obesity, hypertension, hyperlipidemia, heart failure, platelet antiagregation, renal insufficiency, and diabetes in the elderly, as well as new biomarkers of interest in the evaluation of cardiovascular risk in individuals with diabetes mellitus. The work is an update of the interventions and therapeutic objectives in addition, it is noted the need for the inclusion of specialists in Endocrinology, Metabolism and Nutrition in Cardiac Rehabilitation Units for the control and monitoring of this population.


Subject(s)
Cardiovascular Diseases/prevention & control , Diabetic Angiopathies/prevention & control , Diabetic Cardiomyopathies/prevention & control , Aged , Biomarkers/metabolism , Cardiovascular Diseases/etiology , Diabetes Mellitus/physiopathology , Diabetes Mellitus/therapy , Humans , Life Style , Risk Factors , Spain
7.
Aten. prim. (Barc., Ed. impr.) ; 48(5): 325-336, mayo 2016. tab
Article in Spanish | IBECS | ID: ibc-151919

ABSTRACT

El presente documento actualiza las recomendaciones de práctica clínica del manejo de los factores de riesgo cardiovascular (FRCV) en la diabetes mellitus (DM). Es un consenso médico realizado por un panel de expertos independiente de la Sociedad Española de Diabetes (SED). Se han propuesto y actualizado varios consensos de diferentes sociedades científicas o médicas con el fin de mejorar los resultados terapéuticos. La valoración del RCV en la población general puede carecer de sensibilidad para la evaluación individual en determinados grupos de riesgo como los diabéticos. Se revisan los factores de riesgo tradicionales y no tradicionales, así como las estrategias de intervención para el control de los FRCV en los pacientes diabéticos como la dieta, el control ponderal, el ejercicio físico, los hábitos tóxicos, el control glucémico, tensional y lipídico, así como la antiagregación plaquetaria. Confiamos en que estas pautas ayuden a los médicos en la toma de decisiones en su actividad asistencial. Se expone una actualización de los conceptos más relevantes y de mayor interés clínico-práctico y, a su vez realista, para reducir el RCV de los diabéticos como se venía haciendo regularmente por parte del Grupo de Enfermedad Cardiovascular de la SED


The present paper updates the Clinical Practice Recommendations for the management of cardiovascular risk factors (CVRF) in diabetes mellitus. This is a medical consensus agreed by an independent panel of experts from the Spanish Society of Diabetes (SED). Several consensuses have been proposed by scientific and medical Societies to achieve clinical goals. However, the risk score for general population may lack sensitivity for individual assessment or for particular groups at risk, such as diabetics. Traditional risk factors together with non-traditional factors are reviewed throughout this paper. Intervention strategies for managing CVRF in the diabetic patient are reviewed in detail: balanced food intake, weight reduction, physical exercise, smoking cessation, reduction in HbA1c, therapy for high blood pressure, obesity, lipid disorders, and platelet anti-aggregation. It is hoped that these guidelines can help clinicians in the decisions of their clinical activity. This regular update by the SED Cardiovascular Disease Group of the most relevant concepts, and of greater practical and realistic clinical interest, is presented in order to reduce CVR of diabetics


Subject(s)
Humans , Male , Female , Diabetes Mellitus/diagnosis , Diabetes Mellitus/prevention & control , Diabetes Mellitus/therapy , Cardiovascular Diseases/complications , Cardiovascular Diseases/prevention & control , Cardiovascular Diseases/therapy , Risk Factors , Life Style , Motor Activity/physiology , Diet, Mediterranean , Disease Prevention , Epidemiologic Studies , Exercise/physiology , Medication Adherence , Prospective Studies , Practice Guidelines as Topic/standards , Consensus , Spain
8.
Aten Primaria ; 48(5): 325-36, 2016 May.
Article in Spanish | MEDLINE | ID: mdl-26031458

ABSTRACT

The present paper updates the Clinical Practice Recommendations for the management of cardiovascular risk factors (CVRF) in diabetes mellitus. This is a medical consensus agreed by an independent panel of experts from the Spanish Society of Diabetes (SED). Several consensuses have been proposed by scientific and medical Societies to achieve clinical goals. However, the risk score for general population may lack sensitivity for individual assessment or for particular groups at risk, such as diabetics. Traditional risk factors together with non-traditional factors are reviewed throughout this paper. Intervention strategies for managing CVRF in the diabetic patient are reviewed in detail: balanced food intake, weight reduction, physical exercise, smoking cessation, reduction in HbA1c, therapy for high blood pressure, obesity, lipid disorders, and platelet anti-aggregation. It is hoped that these guidelines can help clinicians in the decisions of their clinical activity. This regular update by the SED Cardiovascular Disease Group of the most relevant concepts, and of greater practical and realistic clinical interest, is presented in order to reduce CVR of diabetics.


Subject(s)
Cardiovascular Diseases/prevention & control , Diabetic Angiopathies/prevention & control , Diabetic Cardiomyopathies/prevention & control , Cardiovascular Diseases/etiology , Diabetic Angiopathies/etiology , Diabetic Cardiomyopathies/etiology , Diet, Healthy , Exercise , Humans , Hyperlipidemias/complications , Life Style , Obesity, Morbid/complications , Obesity, Morbid/surgery , Risk Factors , Smoking Prevention
9.
Clín. investig. arterioscler. (Ed. impr.) ; 27(4): 181-192, jul.-ago. 2015. tab
Article in Spanish | IBECS | ID: ibc-142015

ABSTRACT

El presente documento actualiza las recomendaciones de práctica clínica del manejo de los factores de riesgo cardiovascular (FRCV) en la diabetes mellitus (DM). Es un consenso médico realizado por un panel de expertos independiente de la Sociedad Española de Diabetes (SED). Se han propuesto y actualizado varios consensos de diferentes sociedades científicas o médicas con el fin de mejorar los resultados terapéuticos. La valoración del RCV en la población general puede carecer de sensibilidad para la evaluación individual en determinados grupos de riesgo como los diabéticos. Se revisan los factores de riesgo tradicionales y no tradicionales, así como las estrategias de intervención para el control de los FRCV en los pacientes diabéticos como la dieta, el control ponderal, el ejercicio físico, los hábitos tóxicos, el control glucémico, tensional y lipídico, así como la antiagregación plaquetaria. Confiamos en que estas pautas ayuden a los médicos en la toma de decisiones en su actividad asistencial. Se expone una actualización de los conceptos más relevantes y de mayor interés clínico-práctico y, a su vez realista, para reducir el RCV de los diabéticos como se venía haciendo regularmente por parte del Grupo de Enfermedad Cardiovascular de la SED


The present paper updates the Clinical Practice Recommendations for the management of cardiovascular risk factors (CVRF) in diabetes mellitus. This is a medical consensus agreed by an independent panel of experts from the Spanish Society of Diabetes (SED). Several consensuses have been proposed by scientific and medical Societies to achieve clinical goals. However, the risk score for general population may lack sensitivity for individual assessment or for particular groups at risk, such as diabetics. Traditional risk factors together with non-traditional factors are reviewed throughout this paper. Intervention strategies for managing CVRF in the diabetic patient are reviewed in detail: balanced food intake, weight reduction, physical exercise, smoking cessation, reduction in HbA1c, therapy for high blood pressure, obesity, lipid disorders, and platelet anti-aggregation. It is hoped that these guidelines can help clinicians in the decisions of their clinical activity. This regular update by the SED Cardiovascular Disease Group of the most relevant concepts, and of greater practical and realistic clinical interest, is presented in order to reduce CVR of diabetics


Subject(s)
Female , Humans , Male , Diabetes Mellitus/blood , Diabetes Mellitus/pathology , Cardiovascular Abnormalities/genetics , Cardiovascular Abnormalities/metabolism , Diet, Diabetic/classification , Diet, Diabetic/methods , Arterial Pressure/genetics , Pharmaceutical Preparations/administration & dosage , Diabetes Mellitus/genetics , Diabetes Mellitus/metabolism , Cardiovascular Abnormalities/complications , Cardiovascular Abnormalities/pathology , /standards , Diet, Diabetic/instrumentation , Diet, Diabetic , Arterial Pressure/physiology , Pharmaceutical Preparations/supply & distribution
10.
Clin Investig Arterioscler ; 27(4): 181-92, 2015.
Article in Spanish | MEDLINE | ID: mdl-25825221

ABSTRACT

The present paper updates the Clinical Practice Recommendations for the management of cardiovascular risk factors (CVRF) in diabetes mellitus. This is a medical consensus agreed by an independent panel of experts from the Spanish Society of Diabetes (SED). Several consensuses have been proposed by scientific and medical Societies to achieve clinical goals. However, the risk score for general population may lack sensitivity for individual assessment or for particular groups at risk, such as diabetics. Traditional risk factors together with non-traditional factors are reviewed throughout this paper. Intervention strategies for managing CVRF in the diabetic patient are reviewed in detail: balanced food intake, weight reduction, physical exercise, smoking cessation, reduction in HbA1c, therapy for high blood pressure, obesity, lipid disorders, and platelet anti-aggregation. It is hoped that these guidelines can help clinicians in the decisions of their clinical activity. This regular update by the SED Cardiovascular Disease Group of the most relevant concepts, and of greater practical and realistic clinical interest, is presented in order to reduce CVR of diabetics.


Subject(s)
Cardiovascular Diseases/prevention & control , Diabetes Mellitus/epidemiology , Cardiovascular Diseases/etiology , Humans , Risk Factors , Smoking Cessation/methods , Spain
11.
Rev. esp. quimioter ; 24(1): 25-31, mar. 2011. tab, ilus
Article in Spanish | IBECS | ID: ibc-86168

ABSTRACT

Introducción: La técnica de reacción en cadena de la polimerasa en frotis nasofaríngeo es uno de los mejores métodos para la detección de virus gripales. El objetivo de este estudio es conocer el porcentaje de frotis nasofaríngeos positivos durante la pandemia de gripe de 2009 y determinar si existe algún factor predictor de positividad para el virus H1N1 2009. Métodos: Estudio retrospectivo de todos los pacientes que consultaron en Urgencias por síndrome gripal entre el 15 de julio y el 15 de diciembre de 2009 a los que se realizó un frotis nasofaríngeo. Se identificaron aquellos casos en los que el frotis estaba correctamente solicitado. Se dividieron en dos grupos según la positividad para el virus H1N1 2009. Resultados: Se realizó un frotis nasofaríngeo a 362 pacientes. En 87 casos estaba incorrectamente indicado. De los 275 restantes, fue positivo en 141. Los pacientes con frotis positivo eran más jóvenes (36,1(15) años vs 42,3(18); p=0,002), tenían menor recuento de leucocitos, neutrófilos y linfocitos, menor valor de proteína C reactiva (5,15(5) vs 10,5(12); p<0,001) y menor incidencia de infiltrados radiológicos (20,5% vs 33%; p=0,036). La regresión logística identificó la edad, una proteína C reactiva baja y un recuento linfocitario bajo como factores independientes de infección por el virus H1N1 2009. Conclusiones: En pacientes con síndrome gripal, el porcentaje de positividades del frotis para detectar H1N1 2009 se sitúa en el 50%. La edad, los niveles de proteína C reactiva y el recuento linfocitario son factores independientes para predecir el resultado(AU)


Introduction: Polymerase chain reaction (PCR) testing is one of the better techniques for viral detection in nasopharyngeal swabs. The objective of this study was to assess the percentage of positive swabs and to determine whether there were differences according to PCR positivity. Material and Methods: A retrospective study of 362 patients with flu syndrome attended at the Emergency Department between July 15 and December 15, 2009, in whom PCR of nasopharyngeal swabs for the detection of H1N1 2009 influenza virus was performed. Those cases in which swab testing was adequately requested were identified, and patients were divided into two groups according to positive or negative results for H1N1 2009 influenza virus. Results: Nasopharyngeal swab was inadequately ordered in 87. In the remaining 275 patients, PCR was positive in 141. Patients with positive nasopharyngeal swabs were younger (mean [SD] age 36.1 [15] vs 42.3 [18] years, P = 0.002), had lower white blood cell, neutrophil and lymphocyte counts, lower serum concentrations of C-reactive protein (5.15 [5] vs 10.5 [12] mg/dL, P = 0.036) and lower incidence of radiological infiltrates (20.5% vs 33%, P = 0.036). In the logistic regression analysis, age, serum C-reactive protein levels, and lymphocyte count were independently associated with a positive nasopharyngeal swab. Conclusions:About 50% of patients with flu syndrome had positive nasopharyngeal swabs for H1N1 2009 influenza virus. Age, C-reactive protein, and lymphocyte count were independent predictors of positivity(AU)


Subject(s)
Humans , Male , Female , Predictive Value of Tests , Influenza A Virus, H1N1 Subtype/chemistry , Influenza A Virus, H1N1 Subtype , Influenza, Human/drug therapy , Polymerase Chain Reaction , Polymerase Chain Reaction , Retrospective Studies , Emergencies/epidemiology , Primary Health Care/methods , Primary Health Care/trends , 28599 , ROC Curve , Risk Factors
12.
Endocrinol. nutr. (Ed. impr.) ; 53(9): 543-549, nov. 2006. tab
Article in Es | IBECS | ID: ibc-048869

ABSTRACT

Introducción: El seguimiento del carcinoma diferenciado de tiroides (CDT) ha cambiado en los últimos años con la incorporación de la medición de la tiroglobulina (Tg) y de los rastreos corporales isotópicos (RCT) tras la administración de la hormona estimulante de la tiroides (TSH). Pacientes y métodos: En un estudio longitudinal que incluye a 60 pacientes que fueron diagnosticados de CDT, 37 de ellos de bajo riesgo, se ha evaluado la efectividad diagnóstica de la hormona estimulante de la tiroides recombinante humana (TSH-rh). Determinación sérica de Tg y del RCT tras la administración de TSH-rh. Resultados: La sensibilidad de la Tg bajo tratamiento supresor (inferior a 1 ng/ml) es de un 83% para el diagnóstico de recidiva, y su valor predictivo es negativo en un 98%. En el caso de la Tg tras TSH-rh (inferior a 2 ng/ml) esta sensibilidad es del 100%, con una especificidad del 98% y un valor predictivo negativo del 100%. El RCT no aportó ningún dato adicional. Conclusiones: La determinación de Tg tras la administración de TSH-rh es una prueba diagnóstica eficaz en el seguimiento de los pacientes con CDT. La concentración de Tg tras TSH-rh inferior a 2 ng/ml permite identificar con seguridad a los pacientes libres de enfermedad. Este hecho, y el hallazgo de que en nuestra serie el RCT tras TSH-rh no haya mejorado la sensibilidad diagnóstica que la determinación de Tg tras TSH-rh tiene aisladamente, permiten apoyar la aplicación de esta última como método único de seguimiento en pacientes de bajo riesgo


Introduction: Follow-up of patients with differentiated thyroid carcinoma (DTC) has changed in the last few years with thyroglobulin (Tg) measurement and whole-body radioiodine scan (WBS) after recombinant human thyroid-stimulating hormone (rh-TSH) administration. Patients and methods: We performed a longitudinal study of 60 patients with a diagnosis of DTC (37 with a low grade type) to evaluate the diagnostic efectiveness of serum Tg measurement and WBS after rh-TSH administration. Results: The sensitivity of Tg during levothyroxine LT4 suppressive therapy (lower than 1 ng/ml) was found to be 83% in the diagnosis of recurrence with a negative predictive value of 98%. When Tg was measured after rh-TSH administration (lower than 2 ng/ml), sensitivity reached 100% with a specificity of 98% and a negative predictive value of 100%. WBS offered no additional data of value. Conclusions: Measurement of rh-TSH-stimulated serum Tg is a useful diagnostic tool in the follow-up of patients with DTC. Tg levels under 2 ng/ml accurately identify disease-free patients. This finding, along with the finding that WBS after rh-TSH administration did not improve the diagnostic sensitivity of the rh-TSH-stimulated Tg test, support its use as an isolated test in the follow-up of low-risk patients


Subject(s)
Male , Female , Humans , Thyroglobulin/blood , Thyroid Neoplasms/blood , Neoplasm Recurrence, Local/diagnosis , Thyrotropin/analysis , Iodine Radioisotopes , Risk Factors , Biomarkers, Tumor/analysis , Prospective Studies , Tomography , Thyroid Function Tests/methods
13.
Arch. neurociencias ; 6(3): 149-152, jul.-sept. 2001.
Article in Spanish | LILACS | ID: lil-303124

ABSTRACT

El xantoastrocitoma pleomórfico, descrito en 1979 por Kepes, es una neoplasia de tipo astrocítica de características clínico patológicas definidas poco frecuentes principalmente por el pequeño número de casos que se han descrito en la literatura. Se presenta de forma más frecuente en niños y adultos jóvenes en la superficie de los hemisferios cerebrales (predominio lóbulos temporales y occipitales). Por lo general el xantoastrocitoma pleomórfico está [PM1] considerado como una neoplasia de bajo grado y buen pronóstico, siendo la transformación anaplásica rara, aunque cuando se presenta el pronóstico es malo. Se presenta el caso de un paciente del sexo femenino de 11 años con un xantoastrocitoma pleomórfico, en región temporo-occipital derecha, sometiéndose a procedimiento quirúrgico en varias ocasiones, presenta infiltración meningea y cambios anaplásicos con necrosis, y de evolución fatal. En este artículo se discuten los factores pronósticos del xantoastrocitoma pleomórfico y se hace una revisión de la literatura.


Subject(s)
Humans , Female , Arachnoid Cysts , Astrocytoma , Brain Neoplasms , Central Nervous System
14.
Cir. & cir ; 69(1): 5-7, ene.-feb. 2001. ilus, CD-ROM
Article in Spanish | LILACS | ID: lil-303089

ABSTRACT

Los schwanomas intramedulares son tumores poco frecuentes, con predominio a nivel cervical. Se manifiestan clínicamente por alteraciones motoras y sensitivas. La RMN con gadolinio es el estudio de elección para el diagnóstico, aunque también puede utilizarse la angiografía y la TAC. El tratamiento debe ser quirúrgico y la radioterapia se usa en caso de tumoración residual.


Subject(s)
Female , Middle Aged , Brain Stem Neoplasms , Laminectomy , Neurilemmoma , Magnetic Resonance Spectroscopy
15.
Arch. neurociencias ; 5(3): 135-9, jul.-sept. 2000. tab, graf, CD-ROM
Article in Spanish | LILACS | ID: lil-295027

ABSTRACT

Se analizaron en el Hospital central sur de alta especialidad PEMEX 30 casos de pacientes con malformaciones arteriovenosas cerebrales ingresados al servicio de neurocirugía entre enero de 1995 y enero de 1999, de los cuales fueron sometidos a diferentes modalidades terapéuticas veintitrés pacientes se les realizó exéresis microquirùrgica (76.67 por ciento), 4 a radiocirugía (13.33 por ciento) y 3 a embolización (10 por ciento). Se buscó la utilidad de la obtención de un gradiente diferencial en la oxigenación venosa obtenida por la correlación entre la sangre venosa a nivel del bulbo de la vena yugular interna, comparándola con el nivel de oxigenación de la sangre arterial a nivel de la arteria radial. Dichas mediciones se realizaron en forma tanto preoperatoria como en el postoperatorio inmediato y fueron analizados los datos mediante la utilización de una fórmula para obtener un valor constante que nos permite establecer un parámetro comparativo sobre la diferencia arteriovenosa de la oxigenación normal y anormal. Pudiendo así dar un valor a la presencia de un corto circuito presente en todos los pacientes con MAV's. Se concluye que la diferencia arteriovenosa de oxigeno cerebral es un procedimiento efectivo para determinar la presencia de una malformación de manera preoperatoria y valorar el grado de efectividad del tratamiento en el postoperatorio.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Embolization, Therapeutic/methods , Intracranial Arteriovenous Malformations/therapy , Oxygenation , Clinical Laboratory Techniques/methods , Microsurgery , Neurosurgery , Radiosurgery
16.
Arch. med. res ; 30(1): 33-9, ene.-feb. 1999. ilus, graf, tab
Article in English | LILACS | ID: lil-256618

ABSTRACT

Background. Treatment of Parkinson's Disease (PD) has been attempted by others by transplanting either the patient's own adrenal medullary tissue or fetal substantia nigra into caudate or putamen areas. However, the difficulties inherent in using the patient's own adrenal gland, or the difficulty in obtaining human fetal tissue, has generated the need to find alternative methods. Methods. We report here of an alternative to both procedures by using as transplant metrial cultured human adrenal chromaffin cells differentiated into neuron-like cells by extremely low frequency magnetic fields (ELF MF). Results. The results of this study show that human differentiated chromaffin cells can be grafted into the caudate nucleus of a PD patient, generating substantial clinical improvement, as measured by the unified Rating Scale for PD, which correlated with glucose metabolism and D2 DA receptor increases as seen in a PET scan, while allowing a 70 percent de crease in L-Dopa medication. Discussion. This is the first preliminary report showing that transplants of cultured differentiates neuron-like cells can be successfully used to treat a PD patient


Subject(s)
Humans , Male , Female , Middle Aged , Adrenal Medulla/cytology , Antiparkinson Agents/administration & dosage , Carbidopa/therapeutic use , Cells, Cultured/transplantation , Cerebrum/metabolism , Chromaffin Cells , Parkinson Disease/surgery , Dopamine/metabolism , Glucose/metabolism , Levodopa/administration & dosage , Levodopa/therapeutic use , Magnetics , Parkinson Disease , Parkinson Disease/therapy , Receptors, Dopamine , Tomography, Emission-Computed , Treatment Outcome
17.
Arch. med. res ; 28(4): 577-81, dec. 1997. tab, ilus
Article in English | LILACS | ID: lil-225266

ABSTRACT

Levels of DARP in the cerebrospinal fluid (CSF) of patients having a wide variety of nerulogical disorders were determined. Neurological disorders were categorized as degenrative, demyelinating, epilepsy, trauma, hydrocephalia, inflammatory, A-V malformation, CNS neoplasia, parasitic and stroke. DARP levels were determined by an enzyme-linked immunoabsorbent assay (ELISA) using monoclonal anti-DARP antibodies. A synthetic peptide corresponding to the first 36 aa of the N-terminal of DARP was used as standard. A total of 7 non-neurological patients and 73 patients with neurological disorders were tested. The relative concentrations of DARP decreased in patients with Parkinson's diseases vs. patients with non-neurological diseases and increased in other neuropathologies such as demyelinating, hydrocephalia and A-V malformations. Data obtained suggest that changes in the percentage and concentration of DARP may correlate with certain neurological disorders, showing particularly low levels in Parkinson's disease patients


Subject(s)
Humans , Male , Female , Central Nervous System Diseases/cerebrospinal fluid , Cerebrospinal Fluid , Dopamine , ATP Binding Cassette Transporter, Subfamily B, Member 1/cerebrospinal fluid
18.
Rev. méd. Hosp. Gen. Méx ; 59(1): 31-4, ene.-mar. 1996. ilus
Article in Spanish | LILACS | ID: lil-181525

ABSTRACT

La hemorragía intracerebral traumática tardía es difícil de reconocer. Se asocia con una alta mortalidad si no se diagnostica en forma temprana. En estos pacientes es de gradn utilidad el monitoreo completo para el diagnóstico y manejo óptimo. Existe un grupo de pacientes con traumatismo craneoencefálico que tiene mayor riesgo de sufrir hemorragia intracerebral traumática tardía. informamos sobre un caso de hemorragia intracerebral traumática tardía y hacemos una revisión de la literatura


Subject(s)
Humans , Male , Adult , Brain Death/diagnosis , Brain Death/physiopathology , Brain Injuries/complications , Brain Injuries/diagnosis , Brain Injuries/physiopathology , Tomography , Cerebral Hemorrhage/diagnosis , Cerebral Hemorrhage/etiology , Cerebral Hemorrhage/mortality , Craniocerebral Trauma/complications , Craniocerebral Trauma/diagnosis , Craniocerebral Trauma/mortality
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