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Sample records for arterial efectiva sobre

  1. Contribución efectiva al Impuesto Sobre la Renta en personas del régimen general.

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    Carmelita Ruiz Alarcón; Abigali Rodríguez Nava

    2011-01-01

    En esta investigación se analiza la contribución efectiva de las personas morales del régimen general al Impuesto Sobre la Renta en México, a partir de la comparación entre las utilidades netas y el impuesto pagado por las empresas con mayor capitalización en el país, es decir, las registradas en la Bolsa Mexicana de Valores. Asimismo, se propone una metodología para determinar la tasa efectiva de impuesto pagado, se cuantifica la magnitud de las deducciones autorizadas y se construyen escena...

  2. Efecto de dos arreglos de ruedas motrices del tractor sobre la capacidad de campo efectiva en labor de arada

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    Herrera Gutiérrez Oscar Alonso

    1989-12-01

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    The effect of the two tractor wheel arrangements-double field wheel/single furrow wheel (double Re/single RS and single field wheel/single furrow wheel (single RC/single RS, on the effective field capacity in ploughing, was studied in order to prove that the arrangement double RC/single RS provides less costs per hectarea and greater effective field capacity. The field trials were carried out in eigth plots of 3750 m2 each one, employing two treatments (tractor wheel arrangements and four replications. The tractor wheel arrangement double RC/single RS showed the greatest effective field capacity and the lowest costs per hectarea in comparison with the arrangement single RC/single RS.

    Se estudió el efecto de los arreglos rueda de campo doble/rueda de surco sencilla (RC doble/ RS sencilla y rueda de campo sencilla/rueda de surco sencilla (RC sencilla/RS sencilla sobre la capacidad de campo efectiva (CCE en labor de arada, bajo la hipótesis general de que  con doble rueda motriz de campo es de esperar una mayor capacidad de campo efectiva, debido a la reducción en el patinaje del conjunto tractor-arado. Se empleó un arado de tiro de discos con un ancho de corte de 90 cm, arando a una profundidad promedia de 26 cm. El arado se operó con un tractor de 45 k W. El ensayo se realizó en un lote de 5 ha de 200x250 m, el cual se aró por el sistema de melgas en el sentido más corto, para poder trazar ocho melgas de 25 m de ancho cada una. Las melgas hicieron las veces de parcelas experimentales, cada una con un área de 3750 m2; el ensayo se planeó con dos tratamientos (arreglos de ruedas y cuatro replicaciones (melgas. En cada melga se midió el tiempo de campo, descontando aquellas pérdidas que no se debieron a los tratamientos aplicados (pérdidas debidas a fallas en el equipo que normalmente se presentan en este tipo de labores, con el fin de conservar la igualdad de condiciones en todas las parcelas. Con el arreglo RC doble

  3. La doctrina casacional sobre la transparencia de las cláusulas suelo conculca la garantía constitucional de la tutela judicial efectiva

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    Carrasco Perera, Angel Francisco; González Carrasco, María Carmen

    2013-01-01

    La Sentencia del Tribunal Supremo 241/2013, de 9 de mayo, relativa a la declaración de nulidad de las cláusulas suelo en préstamos hipotecarios por falta de transparencia es inconstitucional por vulnerar el derecho a la tutela judicial efectiva. Este artículo expone los argumentos que justifican este reproche. The Judgment of the Supreme Court 241/2013, of 9th May, on unfairness of “bottom” clauses in mortgage loans due to lack of transparency is unconstitutionality because of the ...

  4. La Escucha Efectiva. Recomendaciones para lograrla.

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    Mariano Álvarez Farfán

    2009-10-01

    Full Text Available La comunicación es y seguirá siendo una condición de la existencia humana. Aún avanzando por las sendas del siglo XXI es imposible vivir sin dedicarle atención priorizada a este proceso. Dentro de él un lugar primordial lo ocupa la habilidad de escuchar. Saber escuchar es una de las habilidades más importantes que debe tener un profesional e incluso cualquier persona común de la sociedad. En los últimos años los especialistas han venido dedicando una atención especial a esta habilidad, dándole un tratamiento relativamente independiente dentro de los estudios sobre el proceso de comunicación. En investigaciones realizadas sobre las habilidades que debe tener todo buen comunicador se ha determinado que la más necesaria y difícil de lograr es la de saber escuchar. Realmente pasamos más tiempo escuchando que hablando, pero no son muchos los que se pueden calificar como buenos oyentes. Los estudiosos del tema a nivel mundial coinciden también que desarrollar esta habilidad requiere, de una gran voluntad y disposición hacia el cambio de enfoques, conductas y formas de ver las cosas, porque solo hay una manera de lograrlo y es luchando desde “dentro” del individuo. En el trabajo se ofrecen diferentes opiniones y enfoques que pueden contribuir a desarrollar esta habilidad tan importante, para el trabajo profesional y para las relaciones interpersonales. Se enfatiza en los beneficios que reporta una buena escucha, qué entender por una buena escucha o escucha efectiva y las recomendaciones para lograr esa escucha efectiva.

  5. IV CONFERENCIA SOBRE GESTIÓN DEL RIESGO EN EL VALLE DE ABURRÁ - Declaración de Medellín POR UNA GESTIÓN EFECTIVA DEL RIESGO EN EL VALLE DE ABURRÁ

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    Coupé Francoise

    2008-01-01

    Durante los días 27 y 28 de septiembre de 2007, se realizó en Medellín la IV Conferencia sobre la gestión del riesgo en el Valle de Aburrá, bajo el título de “Villatina 20 años despuésâ€. Este evento académico conmemoró el deslizamiento de Villatina, que ocurrió el 27 de septiembre de 1987, cegó la vida de más de 500 personas, dejó más de 2000 damnificados y destruyó varias manzanas construidas en la ladera del Cerro Pan de Azúcar. Además, intentó evaluar el estado de la gestión ...

  6. Hipertensión arterial sistólica. Impacto sobre la enfermedad cerebrovascular.

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    María C. Valle Campo

    2011-08-01

    Full Text Available Fundamento: La aterosclerosis es un proceso multifactorial sobre el cual actúan varios factores de riesgo. Constituye la principal causa de muerte y de morbilidad en ingresados hospitalarios, y puede ocasionar una acentuada disminución del flujo sanguíneo hacia todos los órganos del cuerpo humano
    Objetivo
    : Determinar el impacto de la hipertensión arterial sistólica sobre la enfermedad cerebrovascular.
    Métodos
    : Se realizó un estudio transversal, observacional y analítico, en 59 fallecidos hipertensos. Se analizaron las arterias cerebrales y se cuantificó la lesión aterosclerótica y su variedad, aplicándose el sistema aterométrico, teniendo en cuenta los tipos de hipertensión arterial. Se emplearon procedimientos estadísticos (medidas de tendencia central y comparativos (prueba de comparación de media aritmética basadas en el test “t” de student.
    Resultados: Los infartos cerebrales recientes fueron más frecuentes en hipertensos sistodiastólicos. No hubo diferencia significativa en cuanto a la edad en el momento de aparición de las lesiones para ambos sexos, pero las mujeres con hipertensión sistólica, fueron significativamente más dañadas desde el punto de vista morfométrico. Se observó correlación significativa para ambos grupos de hipertensos entre tipo de accidente cerebrovascular y variables del sistema aterométrico. Conclusiones: La hipertensión arterial sistólica es un factor importante en la génesis de la enfermedad vasculocerebral y está asociada con la progresión de la placa de ateroma.

    SYSTOLIC HYPERTENSION. IMPACT ON CEREBROVASCULAR DISEASE

    Background: Atherosclerosis is a multifactor process in which several risk factors are involved. It is the leading cause of death and morbidity in hospital admitted patients, and it may cause

  7. Efeitos de um programa de exercicios fisicos sobre a pressao arterial e medidas antropometricas

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    Andrigo Zaar

    2014-01-01

    Full Text Available INTRODUÇÃO: O número de pessoas com sobrepeso ou obesidade tem alcançado índices alarmantes no Brasil. Condutas não-medicamentosas devem ser a estratégia inicial para o tratamento de indivíduos com sobrepeso e hipertensão leve a moderada. OBJETIVO: Analisar os efeitos de um programa de condicionamento físico realizado por um período de 24 meses sobre pressão arterial e composição corporal em indivíduos normotensos e pré-hipertensos. MÉTODOS: Participaram do estudo 35 indivíduos randomizados como: (GI normotensos (n = 16, 51 ± 1 anos, pressão arterial sistólica (PAS < 120 e diastólica (PAD < 80 mmHg; e (GII pré-hipertensos (n = 19, 54 ± 1 anos, PAS de 139 e PAD de 89 mmHg. RESULTADOS: Após 24 meses de programa de condicionamento físico, os indivíduos do GII apresentaram redução na PAS (-3,6 ± 0,94 e -10 ± 0,94 mmHg, p < 0,05, respectivamente e PAD (-6,5 ± 1 e -7,1 ± 0,9 mmHg, p < 0,05. Em ambos os grupos houve redução do perímetro de cintura (-1,74 ± 3,5 e -1,91 ± 4 cm, p < 0,05 e índice de adiposidade (-1,21 ± 2,6 e -1,35 ± 3,1%, p < 0,05, aumento da massa corporal (+1,27 ± 3 e +1,32 ± 3,8 kg, p < 0,05, IMC (+0,72 ± 0,4 e +0,54 ± 0,60 kg/m2, p < 0,05 e massa corporal isenta de gordura (+0,91 ± 0,5 e +0,77 ± 4,8 kg p < 0,05. CONCLUSÃO: Este programa reduziu PA, o perímetro de cintura e o índice de adiposidade em indivíduos pré-hipertensos, constituindo-se, portanto, numa estratégia segura e de baixo custo na prevenção de doenças cardiovasculares e melhoria da condição de saúde da população.

  8. Impacto da cirurgia endovascular sobre a cirurgia arterial convencional Impact of endovascular surgery upon standard arterial surgery

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    Jó Luis Andrade

    2005-02-01

    Full Text Available OBJETIVO: Avaliar o impacto da implantação da cirurgia endovascular (CEV em um serviço de cirurgia vascular convencional (CVC. MÉTODO: Análise retrospectiva dos procedimentos vasculares nos últimos 11 anos, dos procedimentos arteriais, anuais e por residente, entre 1999 (implantação da CEV e 2003, e das cirurgias com cirurgiões endovasculares e convencionais e por cirurgiões convencionais apenas. Foi também avaliado o percentual de encaminhamentos das CEV a serviço intervencionista. RESULTADOS: Houve uma queda inicial no número de procedimentos arteriais que foi recuperada após a implantação do serviço de CEV. O percentual das CEV no número total de cirurgias arteriais passou de 3,6% em 1999 para 25% em 2003 (pBACKGROUND: The aim of this study was to evaluate the impact of endovascular surgery (EVS upon a standard vascular surgical service. METHODS: Retrospective analysis of all vascular procedures of the last 11 years, the annual number of arterial procedures, the fellows surgical volume as well as the percentage of patients referred to radiology between 1999 (implantation of EVS and 2003, and the surgical volume of surgeons able to perform both operation and those who perform only standard surgery (SS. RESULTS: An initial decrease in the number of arterial procedures was observed, but recovered after EVS implantation. The percentage of EVS increased from 3.6% in 1999 to 25% in 2003 (p<0.05. There was no decrease in the number of fellows performing SS, yet an increase in their annual number of EVS was observed (2.6 in 1999 and 20 in 2003. All procedures were referred to radiology before 1999 versus none in 2003. Surgeons that perform both operations had an increase in their surgical volume compared to surgeons that perform only SS (p<0.05. CONCLUSION: Without implantation of EVS a decrease of vascular procedures can occur. On the other hand, EVS can lead to a recovery of surgical volume, including an increase in the SS. There

  9. Efeitos do treinamento resistido sobre a pressão arterial de idosos Efectos del entrenamiento de resistencia sobre la presión arterial de añosos Effects of resistance training on blood pressure in the elderly

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    Andréia Cristiane Carrenho Queiroz

    2010-07-01

    Full Text Available O processo de envelhecimento reduz drasticamente a massa, a força e a potência musculares, diminuindo a capacidade de execução das atividades da vida diária. A prática de exercícios resistidos pode reverter esse quadro, auxiliando na manutenção da massa muscular e melhorando sua força e resistência. No entanto, o envelhecimento ocasiona alterações cardiovasculares, que podem resultar em aumento nos níveis de pressão arterial de repouso, sendo importante analisar os efeitos do exercício resistido sobre a pressão arterial de indivíduos idosos. O objetivo deste estudo é avaliar o conhecimento científico existente sobre as respostas da pressão arterial aos exercícios resistidos e seus mecanismos em idosos. Para tanto, realizou-se uma revisão bibliográfica baseada nas literaturas portuguesa e inglesa relacionadas ao tema. Com base nos estudos encontrados, o corpus atual, embora escasso e controverso, sugere que, de forma crônica, os exercícios resistidos podem ter efeito hipotensor em indivíduos idosos. Entretanto, esse efeito ocorre, principalmente, em idosos normotensos e com o treinamento de baixa intensidade. Os mecanismos envolvidos nessa resposta hipotensora ainda precisam ser elucidados. Embora o treinamento resistido esteja sendo recomendado para idosos e haja alguns indicativos de que ele possa ter efeito hipotensor crônico, ainda há carência de dados científicos e muitas controvérsias sobre o assunto, o que evidencia que este ainda é um campo aberto à investigação.El proceso de envejecimiento reduce drásticamente la masa, la fuerza y la potencia muscular, disminuyendo la capacidad de ejecución de las actividades de la vida diaria. La práctica de ejercicios de resistencia puede revertir ese cuadro, auxiliando en la manutención de la masa muscular y mejorando su fuerza y resistencia. Mientras tanto, el envejecimiento ocasiona alteraciones cardiovasculares, que pueden resultar en aumento en los niveles

  10. Propuesta de seminario de actualización farmacoterapéutica sobre hipertensión arterial

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    Ana María Ramos Cedeño

    2014-04-01

    Full Text Available Por la repercusión que tiene sobre los índices de morbilidad y mortalidad a nivel internacional, la hipertensión arterial constituye un desafío para la Atención Primaria de Salud. En los últimos años se ha desarrollado un completo arsenal terapéutico de eficacia demostrada, sin embargo, no se alcanzan los logros esperados con el tratamiento, al menos en términos poblacionales, por lo que los investigadores en esta esfera realizan infinitos esfuerzos para dar solución a este problema de salud y las complicaciones que de él se derivan. Una de las formas de contribuir a solucionar esta situación es mantener actualizado al personal médico y promover en los estudiantes un pensamiento científico prescriptivo, por lo que proponemos una forma de desarrollar los seminarios de actualización farmacoterapéutica, tomando como ejemplo la hipertensión arterial.

  11. Iv conferencia sobre gestión del riesgo en el valle de aburrá - declaración de medellín por una gestión efectiva del riesgo en el valle de aburrá

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    Coupé, Francoise

    2008-01-01

    Durante los días 27 y 28 de septiembre de 2007, se realizó en Medellín la IV Conferencia sobre la gestión del riesgo en el Valle de Aburrá, bajo el título de “Villatina 20 años despuésâ€�. Este evento académico conmemoró el deslizamiento de Villatina, que ocurrió el 27 de septiembre de 1987, cegó la vida de más de 500 personas, dejó más de 2000 damnificados y destruyó varias manzanas construidas en la ladera del Cerro Pan de Azúcar. Además, intentó evaluar el estado de la gestión del ri...

  12. Efeito de estresse ambiental sobre a pressão arterial de trabalhadores

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    Rocha Renato; Porto Marcelo; Morelli Monica Yara Gabriel; Maestá Nailza; Waib Paulo Henrique; Burini Roberto Carlos

    2002-01-01

    OBJETIVO: Analisar o comportamento de pressão arterial (PA) e a freqüência cardíaca (Fc) de indivíduos ao longo da jornada de trabalho em dois ambientes com estresses ambientais distintos. MÉTODOS: Foram avaliados 46 funcionários, trabalhadores de uma indústria processadora de madeira, de Botucatu, SP, sendo 27 funcionários da linha de produção (esforço físico moderado-intenso, altas temperaturas e elevados níveis de ruído) (G1), e 19 da administração (sem esforço físico, salas aclimatadas, b...

  13. Representações sociais de profissionais de saúde sobre a hipertensão arterial: contribuições para a enfermagem Representaciones sociales de profesionales de salud sobre la hipertensión arterial: contribuciones para la enfermería Social representations of health professionals about arterial hypertension: contributions to nursing

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    Maria Enoia Dantas da Costa e Silva

    2011-03-01

    Full Text Available A Hipertensão Arterial, como grave problema de Saúde Pública, apresenta dificuldades de controle, destacando-se a dimensão psicossocial. O estudo objetivou apreender as representações sociais dos profissionais de saúde sobre a doença e as medidas de controle e explorar aspectos psicossociais relacionados aos conhecimentos, posicionamentos e comportamentos destes profissionais. Estudo exploratório, realizado em um Centro de Saúde, com 19 profissionais cujos dados foram coletados em três grupos focais e processados pelo software Alceste 4.8. As manifestações e descrições explicativas evidenciaram conhecimento dos profissionais sobre as dificuldades relacionadas às mudanças no estilo de vida das mulheres hipertensas e fatores de risco que contribuem para o surgimento da doença. O conhecimento destes aspectos traz contribuições por desvendar as questões subjetivas, peculiares da Hipertensão Arterial.La Hipertensión Arterial, grave problema de Salud Pública, presenta dificultades de control destacándose la dimensión psicosocial. Así, este estudio tuvo como objetivos abarcar las representaciones sociales de los profesionales de salud sobre la Hipertensión Arterial y explorar aspectos psicosociales que influyen sus prácticas de control. Estudio exploratorio, de campo, llevado a cabo en Teresina-PI, con 19 profesionales, en un centro de salud. Los datos recolectados en tres grupos focales, organizados en "corpus" y procesados por el software Alceste 4.8. Las manifestaciones/descripciones explicativas evidenciaron el conocimiento de los profesionales sobre las dificultades relacionadas a los cambios en el estilo de vida de las hipertensas y factores de riesgo que contribuyen para el surgimiento de la enfermedad. El conocimiento de esos aspectos trae contribuciones por desvendar las cuestiones subjetivas peculiares a la Hipertensión Arterial.Arterial Hypertension, as a serious public health problem, presents difficulties to

  14. Enfermeiros de Unidade de Terapia Intensiva adulto: avaliação sobre medida direta e indireta da pressão arterial

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    Taciana da Costa Farias Almeida

    2013-04-01

    Full Text Available Estudo descritivo e de corte transversal que teve como objetivo avaliar e autoavaliar o conhecimento de enfermeiros de Unidades de Terapia Intensiva adulto sobre medida direta e indireta da pressão arterial. Foram abordados 54 enfermeiros de três Unidades de Terapia Intensiva. Foi aplicado um questionário auto respondido com 65 questões (40 relacionadas à pressão arterial. Os enfermeiros apresentaram desempenho insuficiente no teste que avaliou conhecimento (nota média 4,6. Metade da amostra sentiu-se pouco satisfeita com relação ao que sabe sobre pressão arterial. Após responder o questionário os sujeitos autoavaliaram seu conhecimento como regular (48,2%, ruim (27,8% e péssimo (9,3%, manifestando estarem conscientes em relação à importância do assunto para a prática. Os resultados do estudo mostram a necessidade de realização urgente de atividades de educação continuada para esta amostra, visto que são profissionais que atuam diretamente com um sinal vital prioritário no cuidado ao paciente crítico.

  15. PROGRAMAS DE HIPERTENSÃO ARTERIAL NO BRASIL: UM RELATO DE CASO SOBRE O MUNICÍPIO DE SÃO JOSÉ DO CALÇADO - ES

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    Carla Regina Oliveira RAGGI

    2015-12-01

    Full Text Available A hipertensão arterial está entre as causas mais frequentes de óbitos registrados nos últimos anos no município de São José do Calçado, ES, sendo, possivelmente, responsável pela maior parte dos casos de incapacidade física e invalidez precoce, razões que fomentaram a elaboração deste trabalho. A população de estudo constitui-se por uma maioria de baixa renda, acima dos 50 anos, que possui doenças associadas à hipertensão, adotando um estilo de vida sedentário, caracterizado por uma alimentação inadequada, rica em sal e gorduras. Sendo assim pode-se concluir nesse trabalho que a presença de fatores dos riscos, de patologias associadas e a pouca informação sobre a hipertensão pode ser resultado da falta de acompanhamento adequado e, sobretudo, da falta de incentivo em programas de Educação em Saúde que contemplem a problemática e seus determinantes, o que poderá ser conseguido com o controle e prevenção da hipertensão arterial no município.

  16. A influência de fatores emocionais sobre a hipertensão arterial The influence of emotional factors on the arterial hypertension

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    Fabiana de Cássia Almeida Fonseca; Renata Zumerle Coelho; Rodrigo Nicolato; Leandro Fernandes Malloy-Diniz; Humberto Corrêa da Silva Filho

    2009-01-01

    OBJETIVO: Realizar revisão bibliográfica de artigos que abordam a relação entre hipertensão arterial e fatores emocionais, levando em consideração a relevância do tema. MÉTODOS: Fez-se busca ativa na Biblioteca Virtual em Saúde, na base de dados MedLine (1997-2008), utilizando palavras da língua portuguesa. Os descritores de assunto escolhidos foram "hipertensão" e "doença cardíaca coronária". Em seguida, refinou-se a busca com os termos "hostilidade", "raiva", "ansiedade", "comportamento imp...

  17. A influência de fatores emocionais sobre a hipertensão arterial The influence of emotional factors on the arterial hypertension

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    Fabiana de Cássia Almeida Fonseca

    2009-01-01

    Full Text Available OBJETIVO: Realizar revisão bibliográfica de artigos que abordam a relação entre hipertensão arterial e fatores emocionais, levando em consideração a relevância do tema. MÉTODOS: Fez-se busca ativa na Biblioteca Virtual em Saúde, na base de dados MedLine (1997-2008, utilizando palavras da língua portuguesa. Os descritores de assunto escolhidos foram "hipertensão" e "doença cardíaca coronária". Em seguida, refinou-se a busca com os termos "hostilidade", "raiva", "ansiedade", "comportamento impulsivo" e "personalidade impulsiva". Não foram selecionados artigos que tratavam exclusivamente de doenças cardiovasculares e fatores psicológicos ou que associavam hipertensão e doenças cardiovasculares com depressão e doença de Alzheimer. RESULTADOS E DISCUSSÃO: Há inconsistência nos achados que relacionam os fatores emocionais com a hipertensão arterial e cardiopatias. Foram encontrados tanto estudos que demonstram relação positiva da raiva, hostilidade, ansiedade, impulsividade e estresse com hipertensão e doenças cardiovasculares quanto estudos que retratam relações negativas. CONCLUSÃO: O que se pode inferir das relações pesquisadas é que o risco de desenvolvimento da hipertensão arterial e a reatividade cardiovascular parecem ser influenciados por fatores emocionais como impulsividade, hostilidade, estressores, ansiedade e raiva. No entanto, mais estudos são necessários para melhor elucidar essas relações.OBJETIVE: Conduct a bibliographic review of articles that deal a relationship between hypertension and emotional factors considering relevance of the subject. METHODS: Through an active search in the Virtual Health Library, querying the database MedLine (1997-2008, we used words of the Portuguese language. The chosen descriptors are "hypertension" and "coronary heart disease". After that, the search was improved by the adding of terms "hostility", "anger", "anxiety", "impulsive behavior" and "impulsive

  18. Análisis de tendencias de heliofanía efectiva en Argentina

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    Hugo Grossi Gallegos; María Isabel Spreafichi

    2007-01-01

    Se presentan resultados del análisis estadístico de series temporales de promedios anuales de heliofanía efectiva (horas de brillo solar) registrados en estaciones de Argentina, que compensan la insuficiencia de datos de irradiación solar y permiten estudiar tendencias relacionadas con el Cambio Climático Global. Se aplicó un estudio previo de consistencia teniendo en cuenta el error de medición, con la aplicación del test de Mann-Kendall y se discuten los resultados obtenidos. Aparecen algun...

  19. Análisis de tendencias de heliofanía efectiva en Argentina

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    Hugo Grossi Gallegos

    2007-12-01

    Full Text Available Se presentan resultados del análisis estadístico de series temporales de promedios anuales de heliofanía efectiva (horas de brillo solar registrados en estaciones de Argentina, que compensan la insuficiencia de datos de irradiación solar y permiten estudiar tendencias relacionadas con el Cambio Climático Global. Se aplicó un estudio previo de consistencia teniendo en cuenta el error de medición, con la aplicación del test de Mann-Kendall y se discuten los resultados obtenidos. Aparecen algunas estaciones en las que los promedios anuales de la heliofanía efectiva decrecen significativamente, agrupándose fundamentalmente en una zona ubicada al noreste de la Pampa Húmeda y al sur de la Mesopotamia.Results of the statistic analysis of time series of annual averages of hours of solar brightness registered in stations of Argentina are presented; these values compensate the insufficiency of data of solar irradiation and allow studying tendencies related to the Global Climatic Change. The measurement error was taken into account in a previous study of consistency, temporal analysis is made with the application of the test of Mann-Kendall and the obtained results are discussed. They appear some stations in which the annual averages of hours of solar brightness decrease significantly, grouping itself essentially in a zone located to the northeast of Humid Pampas and to the south of the Mesopotamia.

  20. Marco jurídico colombiano de justicia transicional. Balance y propuestas desde una seudo democracia a una real y efectiva

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    Helber Armando Noguera-Sanchez

    2015-12-01

    Full Text Available Desde el año 2005 se habla normativamente en Colombia de Justicia transicional. Básicamente se han proferido las leyes 975 de 2005 “de justicia y paz”, 1424 de 2010 “sobre los acuerdos de contribución histórica por la verdad”, 1448 de 2011 “de víctimas y restitución de tierras” y el Acto legislativo 001 de 2012 “marco jurídico para la paz”. Cada una de tales normas han tenido perspectivas divergentes y sobre ellas los balances son diversos. Lo que se propone el presente documento es realizar de manera concreta un balance respecto de la implementación de cada una de tales mecanismos legislativos a partir de los estándares internacionales de protección de los derechos de las víctimas; y realizar propuestas generales destinadas a que la justicia transicional abandone el paradigma del escenario de conflicto hacia la paz y se desmarque hacia el conflicto de seudodemocracia a democracia real y efectiva.

  1. Efeitos agudos dos extratos hidroalcoólicos do alho (Allium sativum L.) e do capim-limão (Cymbopogon citratus (DC) Stapf) sobre a pressão arterial média de ratos anestesiados Acute effects of Allium sativum L. and Cympobongon citratus (DC) Stapf hydroalcoholic extracts on arterial blood pressure of anesthetized rats

    OpenAIRE

    G. Singi; D.D. Damasceno; E.D. D'Andréa; G. A. Silva

    2005-01-01

    Este trabalho objetivou verificar os efeitos da aplicação aguda endovenosa dos extratos hidroalcoólicos de Allium sativum e de Cymbopogon citratus sobre a pressão arterial de ratos. Foram usados Rattus novergicus albinus, n=7, anestesiados, traqueostomizados e canulados através da veia jugular e da artéria carótida. Foram injetadas doses de 1 mg dos extratos separadamente e em associação (1mg + 1mg), em volumes de 0,2mL. A pressão arterial média (PAM) foi registrada com um sistema Biopac, mod...

  2. Efectos favorables de la actividad física regular motivada en el trabajo sobre la tensión arterial y el perfil lipídico

    Directory of Open Access Journals (Sweden)

    Alfonso José Hernán

    2015-06-01

    Full Text Available Introducción: La inactividad física se ha incrementado de forma considerable en la sociedad actual pudiendo acarrear efectos perjudiciales para la salud. El ejercicio físico regular motivado en el trabajo podría ser una intervención de promoción de la salud y preventiva con beneficios a corto y largo plazo, por lo que es importante documentar sus efectos fisiológicos. Material y métodos: Estudio de corte transversal que representa la primera parte de un estudio prospectivo donde 121 trabajadores viales, de mantenimiento y de oficina (42 mujeres y 79 hombres recibieron un programa de motivación de actividad física. Se registró el grado de actividad física previa y actual. Se estudió el índice de masa corporal (IMC, la frecuencia cardíaca (FC, tensión arterial sistólica y diastólica (TAS, TAD, el pérfil lipídico, niveles de proteína C reactiva (PCR y hemoglobina glicosilada (HbA1c. La captación máxima de oxígeno fue cuantificada por medio de ergoespirometría. Análisis de regresión lineal fueron utilizados para estudiar asociaciones entre las variables de estudio con la respectiva inclusión de variables de confusión. Resultados: Las mujeres presentaron un pérfil lipídico más favorable y valores de IMC y tensión arterial menores en comparación con los hombres. La actividad física regular más de dos veces por semana estuvo asociada a niveles menores de colesterol total (p = 0,013 para 2-3 veces/semana; p = 0,025 para ≥4 vez / semana y lipoproteínas de baja densidad (LDL (p = 0,015 para 2-3 veces/emana; p = 0,022 para ≥4 veces / semana. Los valores de TAD eran más bajos en el grupo de los que reportó actividad física regular al menos cuatro veces por semana (p = 0,026. El efecto de la actividad física regular sobre la TAD fue más evidente en hombres que en mujeres (p = 0,01. Los niveles autoreportados de actividad física mostraron correlación con los niveles de captación máxima de oxígeno medidos

  3. ESTUDIO DE LA ASOCIACIÓN Gluconacetobacter diazotrophicus-VIANDAS TROPICALES EN SUELO FERRALÍTICO ROJO.I. SELECCIÓN DE CEPAS EFECTIVAS PARA LA BIOFERTILIZACIÓNDE BONIATO, YUCA Y MALANGA

    Directory of Open Access Journals (Sweden)

    B. Dibut

    2010-01-01

    Full Text Available El interés de la comunidad científica internacionalpor la bacteria endófita Gluconacetobacter diazotrophicus,microorganismo fijador de nitrógeno atmosférico y productorde sustancias promotoras del crecimiento vegetal, se haincrementado en los últimos años. Por lo que teniendo en cuentasu potencial agrobiológico y los escasos estudios sobre elefecto que puede provocar la aplicación de productos elaboradosa partir de la fermentación de cepas efectivas, se diseñó estainvestigación, con el objetivo de seleccionar una cepa deGluconacetobacter diazotrophicus efectiva para estimular elcrecimiento, desarrollo y rendimiento de viandas tropicales,como son el boniato (Ipomea batatas Lam., la yuca (Manihotesculenta, Crantz y la malanga (Xanthosoma spp., cultivadossobre suelo un Ferralítico Rojo. La cepa INIFAT Abn1, aisladadel cultivo del boniato, fue la más promisoria para incrementarlos diferentes indicadores en los tres cultivos, con incrementosen valores de estimulación entre 23 y 46 %. Se demostró laimportancia de contar con una colección de amplia diversidadpara realizar una selección adecuada, así como la no existenciade una relación directa cultivo de procedencia-efectividad dela cepa.

  4. Efectos crónicos de un programa regular de natación. Sobre la tensión arterial de adultos hipertensos. Swimming chronic effects on the blood pressure. In hypertensive adults.

    OpenAIRE

    Natali, Antônio José; Martin Dantas, Estélio Henrique; Santos Pereira, João; Gomes de Souza Vale, Rodrigo; Eleotério da Silva, Jairo

    2006-01-01

    ResumenEl propósito de este trabajo fue verificar los efectos crónicos de un programa regular de natación sobre la tensión arterial de adultos hipertensos. La muestra ha sido compuesta por 28 personas con hipertensión leve y moderada separados en dos grupos: Grupo Experimental (GE 11 mujeres y 3 hombres) y Grupo Control (GC 8 hombres y 6 mujeres) con edades 42,29 ± 8,72, y 42,15 ± 9,72 años respectivamente. Aquellos pertenecientes al grupo experimental, participaron de un programa regular de ...

  5. Influência de vasoconstritores associados a anestésicos locais sobre a pressão arterial de ratos hipertensos e normotensos Influence of vasoconstrictors associated with local anesthetics on the arterial pressure of hypertensive and normotensive rats

    Directory of Open Access Journals (Sweden)

    Apparecido Neri Daniel

    1999-07-01

    Full Text Available A utilização de anestésicos locais associados a vasoconstritores em pacientes hipertensos é controversa. Neste estudo, verificamos a influência desta associação sobre a pressão arterial caudal (PA em ratos hipertensos DOCA-sal. Após ligeira anestesia com éter, os anestésicos GRUPO I - lidocaína 2% sem vasoconstritor, GRUPO II - lidocaína com fenilefrina, GRUPO III - lidocaína a 2% com noradrenalina, GRUPO IV - prilocaína 3% com felipressina, GRUPO V - mepivacaína 2% com adrenalina e GRUPO VI - mepivacaína com noradrenalina foram injetados na submucosa da boca (anestesia infiltrativa, em ratos DOCA-sal e controles. A PA foi determinada 5 e 15 minutos após a primeira dose do anestésico e também 5 e 15 minutos após a segunda dose. Os dados obtidos indicaram que: a a PA dos ratos DOCA-sal (193,05 ± 4,25 mmHg; n = 43 foi significativamente superior àquela observada nos animais controles (115,64 ± 2,47 mmHg; n = 43 e, b não houve variação significativa nas PA observadas em animais DOCA-sal e controles pela administração dos anestésicos locais testados. Assim, nossos dados experimentais sugerem que a presença de agentes vasoconstritores associados à lidocaína 2%, à prilocaína 3% e à mepivacaína 2% não interferem na PA desses animais, neste modelo experimental de hipertensão.The utilization of local anesthetics associated with vasoconstrictors in hypertensive patients is controversial. The purpose of this investigation was to verify the influence of this association on the arterial pressure (AP in DOCA-salt hypertensive rats. After light ether anesthesia, the anesthetics (Group I - lidocaine 2% without vasoconstrictor; Group II - lidocaine 2% with phenylephrine, Group III - lidocaine 2% with noradrenaline- Group IV - prylocaine 3% with felypressin; Group V - mepivacaine 2% with epinephrine, and Group VI - mepivacaine 2% with norepinephrine were injected into mucobuccal fold (infiltration anesthesia, in DOCA

  6. REHIDRATACIÓN POST-EJERCICIO CON AGUA DE COCO: ¿IGUAL O MÁS EFECTIVA QUE UNA BEBIDA DEPORTIVA?

    Directory of Open Access Journals (Sweden)

    Alexandra Pérez Idárraga

    2011-07-01

    Full Text Available Objetivo: comparar la efectividad rehidratante del agua de coco fresca, con el agua embotellada y una bebida deportiva. Metodología: once participantes de 22,0 ± 1,9 años y 65,6 ± 13,0 kg de masa corporal (promedio ± D.E, asistieron al laboratorio en tres ocasiones, separadas entre sí por una semana. En cada sesión se deshidrataron por ejercicio en el calor hasta perder 1,84 ± 0,2% de la masa corporal. Luego fueron rehidratados en una hora, con agua comercial embotellada (AE, una bebida deportiva (BD o agua de coco (AC, utilizando un volumen equivalente al 120% del peso perdido. Se evaluaron las sensaciones percibidas relacionadas con la tolerancia y la aceptación de las bebidas. Se recolectó la orina eliminada durante tres horas post-rehidratación. Resultados: Hubo interacción entre las bebidas y el tiempo sobre la orina excretada (p=0,003, siendo el AE estadísticamente diferente al AC y la BD a los 30 y 60 min post-rehidratación (p0,05. Esto produjo porcentajes de conservación de líquido diferentes para AE (56%, con respecto a BD (71% y AC (71% (p0,05. La percepción de la dulzura fue menor para AE (p= 0,024. BD obtuvo mejores puntajes de sabor y aceptación general (p<0,05. Conclusiones: el agua de coco fresca resulta tan efectiva como una bebida deportiva para conservar el líquido consumido, teniendo una buena tolerancia y aceptación. Podría ser usada como una bebida rehidratante, cuando la persona la tenga disponible y le agrade su sabor.

  7. Evidencias sobre las medidas no farmacológicas en el control de la presión arterial en adultos

    OpenAIRE

    Ibáñez Gutiérrez, Francisco

    2014-01-01

    El número de personas afectadas por hipertensión arterial asciende a más de mil millones en todo el mundo, aumentando su prevalencia a medida que la población envejece. Datos recientes provenientes del estudio Framingham sugieren que el 90% de los individuos que tienen la presión arterial normal a los 55 años desarrollaran hipertensión en algún momento de su vida. Las medidas no farmacológicas son uno de los pilares centrales en los que se debe fundamentar la prevención y el...

  8. La gestión efectiva de instalaciones deportivas públicas: diseño de un instrumento

    OpenAIRE

    Ramos-Carranza, Isela; Medina-Rodríguez, Rosa Elena; Morales Sánchez, Verónica; Morquecho, Raquel; Ceballos-Gurrola, Oswaldo

    2015-01-01

    [ES] La finalidad de la presente investigación fue construir una herramienta de carácter pragmático, fiable y válido que permita evaluar la gestión efectiva de instalaciones deportivas públicas. Se utilizó el metodo Delphi para la validación de expertos, análisis factorial exploratorio y un análisis de consistencia interna a través del Alfa de Cronbach. [EN] This paper presents as its purpose to build a tool of pragmatic nature, reliable and valid to evaluate the effective management of pu...

  9. Alianza Efectiva Familia-Escuela: Un Programa Audiovisual Para Padres Effective Family-School Alliance: An Audiovisual Program for Parents

    OpenAIRE

    Lidia Alcalay; Neva Milicic; Alejandra Torretti

    2005-01-01

    El objetivo del presente artículo es identificar y describir algunas de las variables consideradas como fundamentales para promover una alianza efectiva entre la familia y la escuela. Estas variables se consideraron al desarrollar un material educativo consistente en un video y un manual de actividades, para ser usado con los padres y apoderados en el contexto escolar. El tratamiento de las temáticas estuvo orientado a ampliar la perspectiva de los padres en relación a su rol en la educación ...

  10. Carta Editorial: Administración Efectiva de Riesgos, una Práctica Útil a Todo Nivel

    Directory of Open Access Journals (Sweden)

    Beatriz Elena López-Valencia

    2015-06-01

    Full Text Available La administración de riesgos, entendida como una práctica que se enfoca principalmente en identificar, calificar, tratar y monitorear los riesgos a los que se encuentran expuestas las empresas, procesos, proyectos, actividades, etc., ha sido ampliamente utilizada en diferentes organizaciones alrededor del mundo y son reconocidos tanto los beneficios de implementar esta práctica de manera sistemática, como las pérdidas que han podido evitarse debido parcialmente a la anticipación que proporciona una efectiva administración de riesgos.

  11. Efectos crónicos de un programa de alargamiento pasivo sobre los valores de la presión arterial sanguinea y el estrés en adultos con hipertensión arterial. Chronics effects of a passive stretching program on the blood pressures and stress levels of hypertensions adults.

    Directory of Open Access Journals (Sweden)

    Bezerra da Silva, Elirez

    2007-07-01

    Full Text Available ResumenEl objetivo de este estudio fue analizar los efectos crónicos de un programa de alargamiento pasivo sobre la presión arterial sanguínea y estrés en adultos con hipertensión arterial. Participaron de este estudio, 12 personas de ambos sexos, con edad media de 52,12±5,5 años, sedentarios y con diagnóstico médico de hipertensión arterial. Las variables recolectadas para la realización de la investigación fueron la presión arterial sanguínea y el estrés de dichas personas. El tratamiento estadístico fue realizado por análisis descriptivos y análisis de inferencia. Los tests estadísticos de naturaleza comparativa fueron realizado a través de los análisis de variancia (ANOVA one-way yuxtapuesto con el test de Post hoc de Tukey, para identificar las posibles diferencias entre los datos de la presión arterial sanguínea. El test de Kruskal-Wallis fue usado para comparar las respuestas del cuestionario de estrés. Fue admitido el valor de pAbstractPurpose of this study was verifier the chronics effects of passive stretching programs on the stress and blood pressure levels of adults with arterial hypertension. 12 subjects of both gender, age average of 52,12 52,12±5,52 year, sedentary and with screening of arterial hypertension, volunteered to participate this study. The variables identified to the conduction of the respective study were the blood pressure, physical activity level and stress of the subjects. Statistic treatment was compost for descriptive and inferential analysis across of the variance analysis test (ANOVA two-way, concomitant with Post hoc test of Tukey, to estimate the differences in the average of the variables during the diverse moments of test. Kuskal-Wallis test was realized to compare the replies of the stress questionnaire. A value of p

  12. A PERCEPÇÃO DA POPULAÇÃO SOBRE A HIPERTENSÃO ARTERIAL SISTÊMICA E SEUS FATORES DE RISCOS

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    Arandir de Souza CARVALHO

    2015-12-01

    Full Text Available A situação de saúde no Brasil se caracteriza por uma transição demográfica acelerada e por uma situação epidemiológica de tripla carga de doenças. Uma população em processo rápido de envelhecimento significa um crescente incremento relativo das condições crônicas, em especial das doenças crônicas, porque elas afetam mais os segmentos de maior idade (MENDES, 2012. No Brasil são cerca de 17 milhões de portadores de hipertensão arterial, 35% da população de 40 anos e mais. E esse número é crescente; seu aparecimento está cada vez mais precoce e estima-se que cerca de 4% das crianças e adolescentes também sejam portadoras (BRASIL, 2006a. A Hipertensão arterial é definida pela persistência dos níveis da pressão arterial sistólica maior ou igual a 140 mmHg e pressão arterial diastólica maior ou igual a 90mmHg. É considerada uma patologia que provoca sérias consequências no sistema cardiovascular e renovascular devido aos seus sinais e sintomas, muitas das vezes, serem silenciosos (MINAS GERAIS, 2006. “A Hipertensão arterial sistêmica tem alta prevalência e baixas taxas de controle, é considerada um dos principais fatores de risco (FR modificáveis e um dos mais importantes problemas de saúde pública.” (SOCIEDADE BRASILEIRA DE CARDIOLOGIA, 2010. Segundo o Ministério da Saúde (2009, o envelhecimento da população aliado ao sedentarismo, inatividade física, hábitos de vida poucos saudáveis, são os grandes responsáveis pelo aumento da incidência e prevalência de doenças crônicas não transmissíveis (DCNT, entre elas, a hipertensão arterial, conhecida como a “inimiga silenciosa” por ser na maior parte do seu curso assintomática.

  13. Arterial Catheterization

    Science.gov (United States)

    ... version AMERICAN THORACIC SOCIETY Patient Information Series Arterial Catheterization An arterial catheter is a thin, hollow tube ... PHYSICIANS: AND COPY Why Do I Need Arterial Catheterization? Common reasons an arterial catheterization is done include: ■ ...

  14. Alianza Efectiva Familia-Escuela: Un Programa Audiovisual Para Padres Effective Family-School Alliance: An Audiovisual Program for Parents

    Directory of Open Access Journals (Sweden)

    Lidia Alcalay

    2005-11-01

    Full Text Available El objetivo del presente artículo es identificar y describir algunas de las variables consideradas como fundamentales para promover una alianza efectiva entre la familia y la escuela. Estas variables se consideraron al desarrollar un material educativo consistente en un video y un manual de actividades, para ser usado con los padres y apoderados en el contexto escolar. El tratamiento de las temáticas estuvo orientado a ampliar la perspectiva de los padres en relación a su rol en la educación de sus hijos y a cuestionar y enriquecer su integración al sistema escolar. En este marco se plantea que el material puede aumentar las competencias parentales de manera de generar una alianza más efectiva con el sistema escolar en pro de un mejor desarrollo del niño en el ámbito social, emocional y cognitivo.The purpose of this article is to identify and describe some of the variables that are considered as essential in order to promote an effective alliance between family and school. These variables were considered in the development of an educational program that includes a video and a set of activities designed to be used with parents in the school context. The different contents of the program were elaborated in such a way so as to expand parents' perspective with respect to their rol in their children's education, as well as to question and enrich their integration to the school system. Within this context, the educational program is oriented to increase parental competences so as to establish a more effective alliance with the school system which in turn, will have a positive effect in social, emotional and cognitive development of the child.

  15. Efeito de drogas utilizadas no tratamento de hipertensão arterial sistêmica sobre a pressão intra-ocular: estudo experimental no cão

    Directory of Open Access Journals (Sweden)

    Hashimoto Mitsuo

    2002-01-01

    Full Text Available Objetivo: Estudar os efeitos de duas drogas utilizadas no tratamento de hipertensão arterial sistêmica (captopril e propranolol sobre a pressão intra-ocular (PIO e pressão de perfusão (PP em cães anestesiados. Métodos: Foram estudados 24 cães, divididos em 3 grupos de 8. No primeiro grupo (GI, foi administrado captopril (um inibidor da enzima conversora de angiotensina na dose de 1,5 mg/kg por via endovenosa. No segundo grupo (GII, foi administrado propranolol (um beta-bloqueador na dose de 1,5 mg/kg por via endovenosa. O terceiro grupo (GIII foi o grupo controle. A PIO e a pressão arterial média (PAm foram medidas por manometria. A pressão de perfusão (PP foi calculada pela diferença entre a PAm e a PIO. A freqüência cardíaca (FC foi monitorada com oxímetro de pulso. Os parâmetros foram estudados em 6 momentos (0, 10, 30, 60, 90 e 120 minutos. Resultados: Houve redução estatisticamente significativa da PIO (p<0,05 nos grupos em que foram administrados captopril e propranolol, sem diferença entre as drogas. Com captopril, houve redução da PAm e da PP aos 10 e 30 minutos. Com propranolol, não houve redução da PAm ou da PP. Conclusão: Houve redução da PIO com uso do captopril e também do propranolol. Entretanto, a redução acentuada da PAm e da PP causadas pelo captopril, podem ser indesejáveis para a irrigação do nervo óptico.

  16. Abonos verdes e inoculación micorrízica de posturas de cafeto sobre suelos Fersialíticos Rojos lixiviados

    Directory of Open Access Journals (Sweden)

    R. Rivera

    2010-01-01

    presencia del sustrato conformado por la crotalaria. No obstante, aún en presencia de dicho sustrato, las posturas inoculadas no mostraron una micorrización efectiva y fueron inferiores a las obtenidas con el tratamiento de referencia suelo/humus (3/1. Por tanto, para obtener posturas vigorosas y una micorrización efectiva, fue necesario, además de inocular, adicionar cantidades complementarias de humus de lombriz en una relación de 9/1 sobre el sustrato de crotalaria incorporada.

  17. Efeito de estresse ambiental sobre a pressão arterial de trabalhadores Effect of environmental stress on blood pressure during the working journey

    OpenAIRE

    Renato Rocha; Marcelo Porto; Monica Yara Gabriel Morelli; Nailza Maestá; Paulo Henrique Waib; Roberto Carlos Burini

    2002-01-01

    OBJETIVO: Analisar o comportamento de pressão arterial (PA) e a freqüência cardíaca (Fc) de indivíduos ao longo da jornada de trabalho em dois ambientes com estresses ambientais distintos. MÉTODOS: Foram avaliados 46 funcionários, trabalhadores de uma indústria processadora de madeira, de Botucatu, SP, sendo 27 funcionários da linha de produção (esforço físico moderado-intenso, altas temperaturas e elevados níveis de ruído) (G1), e 19 da administração (sem esforço físico, salas aclimatadas, b...

  18. Efeito de 16 semanas de treinamento físico, sem controle alimentar, sobre o perfil lipídico e pressão arterial

    OpenAIRE

    Silva, Leonardo Machado; Portela, Luiz Osório Cruz; Nunes Pereira, Sergio; Balta Zumba, Izabelle

    2013-01-01

    Este estudo investiga a importância do exercício físico na prevenção de Doenças Crônicas Não Transmissíveis. Seu objetivo é verificar o efeito de 16 semanas de exercícios físicos no perfil lipídico e pressão arterial. O grupo de estudo foi composto por 12 voluntários, com faixa etária de 40 a 60 anos, com média de colesterol total e LDL insignificantemente acima dos valores limítrofe e pré-hipertensos. Os indivíduos foram submetidos á avaliação médica; análise laboratorial; teste físico e 16 ...

  19. Atenção multidisciplinar ao idoso e seu impacto sobre hipertensão arterial sistêmica e diabetes mellitus

    OpenAIRE

    Rech, Viviane

    2014-01-01

    A hipertensão arterial sistêmica e o diabetes mellitus são problemas de saúde pública em todo o mundo, afetando principalmente os idosos. Os hipertensos e diabéticos podem ter sua qualidade de vida prejudicada em razão das comorbidades inerentes às doenças em questão. Dessa forma, a atividade física vem sendo cada vez mais recomendada como terapêutica não farmacológica dessas moléstias, visto que contribui para redução de incapacidades em indivíduos com e sem doenças cardiov...

  20. Cobertura efectiva del manejo de la violencia contra mujeres en municipios Mexicanos: límites de la métrica

    Directory of Open Access Journals (Sweden)

    Diana P. Viviescas-Vargas

    2013-08-01

    Full Text Available El estudio estimó la cobertura efectiva de los servicios en salud de primer nivel de atención para el manejo de la violencia doméstica contra la mujer en tres municipios mexicanos. Se estimó la prevalencia y severidad de la violencia usando una escala validada, y la cobertura efectiva con la propuesta de Shengelia y colaboradores, con modificaciones. Se consideró atención con calidad cuando hubo sugerencia de hacer la denuncia a las autoridades. La utilización y calidad de la atención fue baja en los tres municipios analizados, siendo más frecuente la utilización cuando hubo violencia sexual o física. La cobertura efectiva en Guachochi, Jojutla y Tizimín fue de 29.41%, 16.67% y cero, respectivamente. El indicador de cobertura efectiva tiene dificultades para medir eventos y respuestas no se fundamentan en modelos biomédicos. Los hallazgos sugieren que el indicador puede ser mejorado al incorporar otras dimensiones de la calidad.

  1. Effect of hypercortisolism control on high blood pressure in Cushing's syndrome Efecto del control del hipercortisolismo sobre la hipertensión arterial en el síndrome de Cushing

    Directory of Open Access Journals (Sweden)

    Reynaldo M. Gómez

    2007-10-01

    Full Text Available Many hypertensive patients affected by endogenous Cushing's syndrome (CS persist with high blood pressure (HBP despite good control of cortisol excess. We assessed the effect of preoperative ketoconazole administration and of definitive treatment of CS on arterial hypertension and analysed the factors involved in the persistence of hypertension. We assessed retrospectively 71 patients with CS and HBP (60 women, 11 men; 50 pituitary, 21 adrenal successfully treated by surgery and/or radiotherapy; 19 of them received ketoconazole (KNZ before surgery. After treatment, patients were divided into those with persistent high blood pressure (PHBP and those with normal blood pressure (NBP. As possible predictive factors for PHBP we analysed age, duration and family history of HBP, pre-treatment 24 hour urinary free cortisol (24h-UFC and body mass index (BMI. HBP normalized in 53 out of 71 patients (74.6%, regardless of the origin of Cushing's syndrome. PHBP patients were older (p=0.003, had longer duration (p=0.007 and higher systolic blood pressure before treatment (p=0.046 than NBP patients. Thirteen out of 19 patients (68.4% treated with ketoconazole, normalized their hypertension and remained normotensive after successful surgery. Five patients became normotensive only after surgery. In conclusion: a blood pressure levels normalized in most patients after remission of CS; b ketoconazole was effective for the control of HBP, and seems to be a good indicator of post-surgical outcome, and c higher age at presentation, longer duration of hypertension and higher systolic blood pressure figures before treatment negatively influence normalization of blood pressure after resolution of Cushing's syndrome.Muchos pacientes con síndrome de Cushing (SC permanecen hipertensos a pesar del control del exceso glucocorticoideo. Investigamos el efecto de la administración de ketoconazol (KNZ y del tratamiento definitivo del SC sobre la hipertensión arterial (HTA

  2. Efeitos agudos dos extratos hidroalcoólicos do alho (Allium sativum L. e do capim-limão (Cymbopogon citratus (DC Stapf sobre a pressão arterial média de ratos anestesiados Acute effects of Allium sativum L. and Cympobongon citratus (DC Stapf hydroalcoholic extracts on arterial blood pressure of anesthetized rats

    Directory of Open Access Journals (Sweden)

    G. Singi

    2005-06-01

    Full Text Available Este trabalho objetivou verificar os efeitos da aplicação aguda endovenosa dos extratos hidroalcoólicos de Allium sativum e de Cymbopogon citratus sobre a pressão arterial de ratos. Foram usados Rattus novergicus albinus, n=7, anestesiados, traqueostomizados e canulados através da veia jugular e da artéria carótida. Foram injetadas doses de 1 mg dos extratos separadamente e em associação (1mg + 1mg, em volumes de 0,2mL. A pressão arterial média (PAM foi registrada com um sistema Biopac, modelo MP100. O Allium sativum diminuiu a PAM de 124±2 mmHg, no controle, para 108±2 mmHg aos 15s. Da mesma forma, o Cymbopogon citratus diminuiu a PAM de 122±2 mmHg, no controle, para 106± 2 mmHg aos 15s. A associação de ambos também diminuiu a PAM de 126±3 mmHg, no controle, para 113±3 mmHg aos 15s. Os efeitos das duas plantas foram iguais e não foram incrementados quando associadas.This work aimed to verify the effects of acute intravenous applications of Allium sativum and Cymbopogon citratus hydroalcoholic extracts on arterial blood pressure of anesthetized rats. Adult male rats (Rattus novergicus albinus, n=7, were used. The rats were anesthetized, tracheotomy and cannulation of both jugular and carotid were carried out. The injected doses were 1 mg separately as well as the association of both extracts, in volumes of 0,2 mL. The mean arterial blood pressure (MAP was recorded with a Biopac System, model MP100. The Allium sativum decreased the MAP only from 124±2 mmHg (control to 108±2 mmHg at 15s. The Cymbopogon citratus also decreased the MAP from 122±2 mmHg (control to 106±2 mmHg after 15s. The 1mg of Allium sativum + 1mg of Cymbopogon citratus also decreased the MAP from 126±3 mmHg (control to 113±3 mmHg after 15s. The effects of the two plants were the same and were not increased when in association.

  3. Arterial stick

    Science.gov (United States)

    ... the main arteries in the forearm (radial and ulnar arteries). The procedure is done as follows: The ... Arteries also have thicker walls and have more nerves. When the needle is inserted, there may be ...

  4. Efeito de estresse ambiental sobre a pressão arterial de trabalhadores Effect of environmental stress on blood pressure during the working journey

    Directory of Open Access Journals (Sweden)

    Renato Rocha

    2002-10-01

    Full Text Available OBJETIVO: Analisar o comportamento de pressão arterial (PA e a freqüência cardíaca (Fc de indivíduos ao longo da jornada de trabalho em dois ambientes com estresses ambientais distintos. MÉTODOS: Foram avaliados 46 funcionários, trabalhadores de uma indústria processadora de madeira, de Botucatu, SP, sendo 27 funcionários da linha de produção (esforço físico moderado-intenso, altas temperaturas e elevados níveis de ruído (G1, e 19 da administração (sem esforço físico, salas aclimatadas, baixos níveis de ruído (G2. Todos foram submetidos a avaliação antropométrica da composição corporal (obesidade e adiposidade e bioquímica do sangue (lipidemia e, adicionalmente, o registro da PA e da Fc em três momentos do turno de serviço: início, meio e fim. RESULTADOS: Houve semelhança na variação da PA entre G1 e G2, mas com maiores elevações de PA e Fc em G1. Os resultados mostraram grande variabilidade na resposta da PA, levando à subdivisão dos grupos G1 e G2 em respondedores (GR, aumento maior de 10% na PA média e não respondedores (GN. Os subgrupos GR e GN apresentaram semelhanças nos padrões antropométrico e bioquímico diferindo apenas na resposta pressórica e no caso do GR1 na história familiar de hipertensão. Comparando os subgrupos GR1 e GR2, foi constatado que os primeiros apresentaram maiores variações de PA e Fc que os segundos. CONCLUSÕES: A variação individual da resposta pressórica e da Fc conforme o tipo de estresse ambiental indica ser este um fator adicional a ser considerado na avaliação da pressão arterial e, talvez, na gênese da hipertensão arterial de operários.OBJECTIVE: To evaluate blood pressure (BP and heart rate (HR behavior in individuals during the working journey in two environments with different work stressors. METHODS: The study comprised 46 male individuals working in a wood processing factory in Botucatu, Brazil. Twenty seven (27.4±5.4 yrs, mean±SD worked in the

  5. Avaliação comparativa entre a anestesia geral com halotano e isoflurano sobre a pressão arterial em cães Comparartive evaluation of the general anesthesia with halothane and isoflurane on the arterial pressure in dogs

    Directory of Open Access Journals (Sweden)

    Cláudio Corrêa Natalini

    2000-06-01

    Full Text Available As alterações produzidas pelo halotano e isoflurano sobre as pressões arteriais sistólica, diastólica e média foram avaliadas em 34 caninos de ambos os sexos e de diferentes pesos corporais e raças, todos submetidos a procedimentos cirúrgicos ortopédicos, divididos em dois grupos de 17 animais, submetidos a jejum prévio de 12 horas antes da indução anestésica. Os animais de ambos os grupos receberam sulfato de atropina 0,04mg/kg, associado ao sulfato de morfina 1,5mg/kg, administrados por via intramuscular e indução anestésica com propofol 6mg/kg por via intravenosa e a anestesia geral foi mantida com halotano no grupo I e o isoflurano no grupo II. Em ambos os grupos, o óxido nitroso na proporção 2:1 com oxigênio foi utilizado como gás diluente do anestésico volátil. Decorridos 15 minutos do início da anestesia volátil, as pressões sistólica, diastólica e média foram mensuradas pelo método oscilométrico indireto até o período de 90 minutos. Observou-se que as pressões arteriais sistólica e diastólica do grupo II foi maior a partir dos 45 minutos de manutenção com os anestésicos voláteis, não ocorrendo diferença significativa na freqüência cardíaca. Conclui-se que a manutenção anestésica com isoflurano produz valores de pressão arterial sistólica e diastólica superiores à manutenção com halotano que causou hipotensão arterial dos 45 aos 75 minutos de anestesia volátil.Changes in arterial systolic, diastolic, and mean blood pressure were evaluated and compared in 34 dogs anesthetized with halothane or isoflurane and submitted to orthopedic surgeries. Two groups were formed each with 17 dogs. These animals were fasted for 12 hours before anesthesia induction. Anesthetic technique was premedication with 0.04mg/kg atropine intramuscular combined 1.5mg/kg morphine intramuscular. Anesthesia was induced with 6.0mg/kg propofol intravenously. Anesthesia was maintained with halothane in group I and

  6. Efeitos da ansiedade sobre a pressão arterial em mulheres com hipertensão Efectos de la ansiedad sobre la presión arterial en mujeres con hipertensión Anxiety effects on blood pressure of women with hypertension

    OpenAIRE

    Eliane Corrêa Chaves; Nágela Valadão Cade

    2004-01-01

    Estudo descritivo, associativo, que objetiva conhecer a relação da ansiedade com os níveis de pressão arterial em mulheres hipertensas e da ansiedade com o tempo de tratamento da hipertensão. Foram pesquisadas 78 mulheres em tratamento para hipertensão no InCor, mediante o Inventário de Ansiedade de Spilberger - IDATE, e a pressão arterial verificada, utilizando-se da medida indireta, obtida pelo método auscultatório. Os dados foram submetidos à análise estatística, com nível de significância...

  7. Efeitos da fisioterapia respiratória sobre a pressão arterial em recém-nascidos pré-termo Effects of chest physiotherapy on blood pressure in preterm newborn

    Directory of Open Access Journals (Sweden)

    Carla Marques Nicolau

    2008-09-01

    Full Text Available Oscilações na pressão arterial (PA sistêmica são diretamente proporcionais às oscilações do fluxo sangüíneo cerebral nos prematuros, mas são escassos os estudos acerca do efeito dos procedimentos fisioterapêuticos sobre a PA. Este estudo investigou a repercussão desses procedimentos e da aspiração endotraqueal na pressão arterial em recém-nascidos pré-termo (RNPT na primeira semana de vida. Foram estudados 42 RNPT com peso de nascimento menor que 1.500 gramas em ventilação mecânica. A PA foi mensurada em três momentos: antes da fisioterapia (A, imediatamente após os procedimentos fisioterapêuticos (B e imediatamente após a aspiração endotraqueal (C. Os dados coletados foram analisados estatisticamente, com nível de signficância fixado em pBlood pressure (BP oscillations in premature newborns are directly related to cerebral blood flow, but few studies assess the effects of standard physical therapy procedures on their BP. The aim of this study was to analyse the effects of respiratory physiotherapy and endotracheal suctioning on premature newborn BP during the first week of life. Forty-two preterm newborns with mean birth weight of 101.68±274.16 g, mean gestational age 29.58±2.16 weeks, and receiving mechanical ventilation were studied; they were mostly female (57.1% and presented hyaline membrane disease (90.4%. BP measurements were carried out at three moments: before (A and after physiotherapy (B, and after endotracheal suctioning (C. Data were statistically analysed and significance level set at p<0.05. Mean values found for systolic, diastolic, and (average BP in mmHg were: moment A, 71.32 x 40.56 (53.04; moment B, 69.93 x 39.41 (51.98; and moment C, 74.29 x 43.75 (54.82. Newborn BP thus remained within physiological values both after physiotherapy procedures and suctioning, hence these may be said to be harmless; endotracheal suctioning had a higher influence on premature newborn BP oscillations.

  8. Efecto del bypass gástrico sobre el riesgo cardiovascular y la calidad de vida en pacientes con obesidad mórbida

    Directory of Open Access Journals (Sweden)

    I. Mateo Gavira

    2014-03-01

    Full Text Available Objetivos: Determinar la prevalencia de las principales comorbilidades asociadas a la obesidad mórbida y evaluar el efecto del bypass gástrico sobre el estado ponderal, riesgo cardiovascular y calidad de vida en estos pacientes. Métodos: Estudio descriptivo con medidas del cambio intrasujeto (antes-después en una muestra de 162 pacientes de los resultados del bypass gástrico sobre la evolución ponderal, comorbilidades asociadas, riesgo cardiovascular a 10 años (estimado mediante las tablas de Framingham y calidad de vida mediante el test BAROS (Bariatric Analysis and Reporting Outcome System. Resultados: El índice de masa corporal (IMC se reduce de 51,12 ± 7,22 kg/m² a 29,94 ± 4,86 kg/m² (72,85% de sobrepeso perdido y se resuelven la hipertensión arterial (HTA, la dislipemia y la diabetes mellitus tipo 2 (DMT2 en el 71,93%, 91,38% y 82,93% respectivamente (p < 0,001. El riesgo cardiovascular mayor del 10% se reduce del 25,91% al 4,32% (p < 0,001. Según la escala BAROS, el resultado de la cirugía fue favorable en el 95% de los casos. Conclusiones: La cirugía bariátrica mediante bypass gástrico demuestra ser muy efectiva para la reducción ponderal y comorbilidades asociadas, mejorando notablemente la calidad de vida.

  9. A farmacoterapia no idoso: revisão sobre a abordagem multiprofissional no controle da hipertensão arterial sistêmica La farmacoterapia en el anciano: una revisión sobre la actuación multiprofesional en el control de la hipertensión arterial sistémica Pharmacotherapy in the elderly: a review about the multidisciplinary team approach in systemic arterial hypertension control

    Directory of Open Access Journals (Sweden)

    Divaldo Pereira de Lyra Júnior

    2006-06-01

    Full Text Available A maior prevalência de doenças crônicas entre os idosos, como a hipertensão arterial sistêmica, implica no crescimento do consumo de medicamentos. Em conseqüência, ocorre o aumento na incidência dos problemas relacionados aos medicamentos (PRM, deixando essa população vulnerável aos vários problemas de saúde. Fundamentados na literatura, destaca-se a abordagem multiprofissional (médico, enfermeiro e farmacêutico nas atividades ligadas diretamente à farmacoterapia da hipertensão arterial sistêmica, para proporcionar ao idoso a conscientização quanto aos seus cuidados com a saúde, reduzir os PRM e obter a adesão satisfatória.La mayor prevalencia de las enfermedades crónicas entre los ancianos, tales como la hipertensión arterial sistémica, implica el crecimiento del consumo de medicamentos. En consecuencia, aumenta la incidencia de problemas relacionados a los medicamentos (PRM, dejando a esta población vulnerable a varios problemas de salud. Basados en la literatura, destacamos la actuación multiprofesional (médico, enfermero y farmacéutico en las actividades ligadas directamente a la farmacoterapia de la hipertensión arterial sistémica, para proporcionar a los ancianos una mayor comprensión de los cuidados con su salud, reducir los PRM y alcanzar la adhesión satisfactoriaThe greater prevalence of chronic diseases like systemic arterial hypertension among elderly people results in an increase of drugs use. Therefore, the incidence of a lot of drug-related problems (DRP rises, and this leads to many health problems in the population. Based on literature, authors emphasize the multidisciplinary team approach (physicians, nurses and pharmacists to activities directly related with pharmacotherapy for hypertension, granting elderly persons a better comprehension about taking care of their own health, to reduce DRP and achieve satisfactory adherence.

  10. Esteroles vegetales en bebidas lácteas: efecto sobre el perfil lipídico y estimación de su biodisponibilidad

    OpenAIRE

    Bañuls Morant, Celia

    2012-01-01

    Sse plantea si el consumo regular de EV durante un periodo de tiempo prolongado produce una reducción efectiva de los niveles séricos de colesterol, así como si la dieta habitual influye sobre la eficacia de los EV y sobre su absorción, y la influencia de factores genéticos en dicha eficacia. Finalmente, conocido el efecto competitivo de los EV en la absorción de los carotenoides, interesa averiguar si una dosis terapéutica de EV influye sobre parámetros de estrés oxid...

  11. Efeito de 16 semanas de treinamento com pesos sobre a pressão arterial em mulheres normotensas e não-treinadas Effect of 16-week weight training over blood pressure in normotensive and non-trained women

    Directory of Open Access Journals (Sweden)

    Aline Mendes Gerage

    2007-12-01

    Full Text Available O propósito deste estudo foi analisar o impacto de 16 semanas de treinamento com pesos (TP sobre a pressão arterial (PA em mulheres normotensas. Para tanto, participaram do estudo 21 mulheres jovens (20,5 ± 2,1 anos, não-treinadas, que foram separadas, aleatoriamente, em grupo treinamento (GT = 13 e grupo controle (GC = 8. O protocolo de TP foi estruturado de forma progressiva, em duas etapas, com duração de oito semanas cada, sendo executado com freqüência semanal de três sessões. Medidas de PA foram realizadas em repouso por meio do método auscultatório nos diferentes momentos do estudo (linha de base, após oito e 16 semanas. O teste de Shapiro-Wilk foi utilizado para análise da normalidade dos dados. ANOVA two-way para medidas repetidas foi utilizada para as comparações entre os grupos ao longo do tempo, seguida pelo teste post-hoc de Scheffé quando P The aim of this study was to analyze the impact of a 16-week weight training (WT over blood pressure (BP in normotensive women. The sample consisted of 21 young women (20.5 ± 2.1 years, non-trained, who were randomly grouped in training group (TG = 13 and control group (CG = 8. The WT protocol was progressively structured, in two phases, with duration of eight weeks each, being performed with weekly frequency of three sessions. BP measurements were conducted at rest through the auscultatory method, in the different moments of the study (baseline, after eight and 16 weeks. The Shapiro-Wilk test was used for analysis of the data normality. Two-way ANOVA for repeated measurements was used for the comparisons between groups during the time, followed by the Scheffé post-hoc test when P < 0.05. A group v. moment interaction was found in the systolic, diastolic and mean BP values, with significant decreases, during the 16 weeks of follow-up, in the order of 5, 8 and 6 mmHg, respectively, in the TG. The outcomes suggest that the 16 week-WT program may cause important reductions in BP

  12. Efeito da cirurgia de revascularização miocárdica sobre os episódios isquêmicos assintomáticos Effect of coronary artery bypass graft surgery on ischemic asymptomatic episodes

    Directory of Open Access Journals (Sweden)

    Humberto Pierri

    1998-04-01

    Full Text Available OBJETIVO: Avaliar o efeito da cirurgia de revascularização miocárdica (CRM sobre episódios isquêmicos assintomáticos (EIA. MÉTODOS: Foram estudados 28 homens, com angina estável (idade média 57,3±9,6 anos sem condições relacionadas a alterações de microcirculação e que, após retirada da medicação, apresentaram EIA à eletrocardiografia ambulatorial (ECGA. No pré-operatório e 4 meses após a cirurgia foram analisados os comportamentos dos EIA, segundo sua freqüência, e o de suas freqüências cardíacas (FC. A revascularização miocárdica foi completa em 75% dos casos. RESULTADOS: O número dos EIA foi reduzido de 162 (9 sintomáticos no pré-operatório para, apenas, 4 no pós-operatório (pPURPOSE: To evaluate the effect of coronary artery bypass graft surgery (CABG on ischemic asymptomatic episodes (IAE. METHODS: Twenty eight males (mean age 57.3±9.6 years with stable angina and no microcirculation abnormalities, who presented with IAE after medication withdrawal, were studied using ambulatory electrocardiography monitoring. Presence of IEA was analyzed before and 4 months after CABG according to its frequency and heart rate (HR response. CAGB was considered complete in 75% of the cases. RESULTS: The number of IAE was reduced from 162 (9 symptomatic in the preoperative period to 4 after surgery (p<0.05. In two patients with IAE in the postoperative period, coronariography confirmed obstruction of aortocoronary grafts. Analysis of HR at the beginning and peak of IAE suggested as mechanisms both reduced blood flow and increased oxygen consumption by the myocardium. CONCLUSION: CABC eliminated IAE regardless of HR. When IAE is present after surgery, graft occlusion should be suspected.

  13. Arterial Ageing

    OpenAIRE

    Lee, Seung-Jun; Park, Sung-Ha

    2013-01-01

    Arterial ageing is characterized by age associated degeneration and sclerosis of the media layer of the large arteries. However, besides ageing, clinical conditions, which enhance oxidative stress and inflammation act to accelerate the degree of arterial ageing. In this review, we summarized the pathophysiology and contributing factors that accelerate arterial ageing. Among them, we focused on hypertension, the renin-angiotensin-aldosterone system and vascular inflammation which are modifiabl...

  14. Enfermagem na WEB: o processo de criação e validação de um WEB site sobre doença arterial coronariana Enfermería en la WEB: el proceso de construcción y validez de una pagina WEB sobre la enfermedad arterial coronaria Nursing on the web: the creation and validation process of a coronary heart disease WEB site

    Directory of Open Access Journals (Sweden)

    Isaac Rosa Marques

    2002-06-01

    Full Text Available A World Wide Web é uma importante fonte à pesquisa da informação de saúde. Um desafio para a área de Informática em Enfermagem brasileira é o de usar esse potencial para promover a educação em saúde. Este artigo objetiva apresentar um modelo de criação e validação usado em um Web site educativo, denominado CardioSite, cujo tema é a Doença Arterial Coronariana. Para a criação do mesmo, foi adotado um método com fases de modelagem conceitual, de desenvolvimento, de implementação e de avaliação. Na fase de avaliação, a validação foi feita através de um painel on-line com especialistas nas áreas de informática e saúde. Os resultados demonstraram que as informações são confiáveis e válidas. Considerando a inexistência de sistemas nacionais oficiais com esse propósito, este modelo demonstrou-se efetivo para avaliar a qualidade do conteúdo do Web site.La Word Wide Web es una importante fuente de investigación de información sobre la salud. Un desafío para el área de Informática en Enfermería brasileña es el de usar este potencial para promover la educación en salud. Este artículo busca presentar un modelo de creación y evaluación utilizado en una Pagina Web educativa, denominado CardioSite, cuyo tema es la Enfermedad Arterial Coronaria. En la creación del mismo se ha adoptado un método con las fases de modelaje conceptual, de desarrollo, de implementación y de evaluación. En la fase de evaluación, la validación se llevó a cabo por medio de un panel on-line con especialistas en las áreas de informática y salud. Los resultados señalaron tales informaciones como confiables y validas. Al considerar la inexistencia de sistemas nacionales oficiales con este propósito, el modelo se ha mostrado efectivo para evaluar la calidad del contenido la pagina web.The World Wide Web is an important health information research source. A challenge for the Brazilian Nursing Informatics area is to use its

  15. Acute arterial occlusion - kidney

    Science.gov (United States)

    ... arterial thrombosis; Renal artery embolism; Acute renal artery occlusion; Embolism - renal artery ... often result in permanent kidney failure. Acute arterial occlusion of the renal artery can occur after injury ...

  16. Evaluación comparativa del desempeño de los sistemas estatales de salud usando cobertura efectiva Benchmarking of performance of Mexican states with effective coverage

    OpenAIRE

    Rafael Lozano; Patricia Soliz; Emmanuela Gakidou; Jesse Abbott-Klafter; Dennis M Feehan; Cecilia Vidal; Juan Pablo Ortiz; Christopher JL Murray

    2007-01-01

    Realizar un análisis comparativo del desempeño (benchmarking) de las unidades subnacionales en un sistema de salud descentralizado es importante para favorecer la rendición de cuentas, monitorear el progreso, identificar los factores que determinan tanto el éxito como el fracaso, y crear una cultura basada en la evidencia. Desde 2001, la Secretaría de Salud de México se ha dedicado a desarrollar esta tarea basándose en el concepto de cobertura efectiva promovido por la Organización Mundial de...

  17. Tendencias y cambio del clima del valle del Mantaro mediante los análisis de índices de Precipitación Efectiva y Temperatura Eficiente

    OpenAIRE

    Jacinto Arroyo Aliaga

    2011-01-01

    Objetivos: La investigación fue para evaluar los cambios y tendencias del clima del valle del Mantaro en función del análisis de sus índices de temperatura eficiente y precipitación efectiva a partir de los valores totales mensuales de precipitación y valores medios mensuales de temperatura, medidos desde el año 1921 hasta el año 2010, para comparar la tendencia de los movimientos seculares con la teoría del calentamiento climático global. Métodos: Para encontrar las tendencias de las precipi...

  18. Cobertura efectiva de las intervenciones en salud de América Latina y el Caribe: métrica para evaluar los sistemas de salud

    OpenAIRE

    Sandra Martínez; Gabriel Carrasquilla; Ramiro Guerrero; Héctor Gómez-Dantés; Victoria Castro; Héctor Arreola-Ornelas; Paula Bedregal; Red de Investigación sobre Cobertura Efectiva de las Intervenciones de Salud del Observatorio de la Salud para América Latina y el Caribe

    2011-01-01

    Objetivo. Medir la cobertura efectiva para once intervenciones de salud en nueve países de América Latina utilizando las encuestas de demografía y salud o registros administrativos que abarcan la salud infantil, de la mujer y el adulto. Material y métodos. Se seleccionaron las intervenciones y se armonizaron definiciones y métodos de cálculo de acuerdo con la información disponible para lograr la comparabilidad entre países. Resultados. Chile es el país con mejores indicadores de coberturas c...

  19. Demanda efectiva y distribución del ingreso en la evolución reciente de la economía mexicana

    Directory of Open Access Journals (Sweden)

    Emilio Caballero Urdiales

    2013-01-01

    Full Text Available Durante los últimos tres decenios, el desempeño de la economía mexicana ha sido decepcionante, y el objetivo de este trabajo es estudiar de forma empírica la evolución económica del país a partir de mediados de los años de 1980, basando el análisis en el principio de demanda efectiva como marco teórico. Los autores utilizan procedimientos econométricos modernos para probar algunas hipótesis, especialmente con respecto al papel que desempeñan las políticas macroeconómicas —especialmente las fiscales y las monetarias— y la distribución del ingreso en la evolución del producto en el país. Nuestro estudio muestra que el débil crecimiento de México, se debió ante todo a la restricción fiscal y la política monetaria, junto con el deterioro de la participación de los salarios en el producto. Aunque las condiciones de la oferta y de la acumulación de capital evolucionaron también con un ritmo más bien lento, el insuficiente crecimiento de la demanda efectiva, y no la oferta, fue la verdadera limitante en el periodo en observación.

  20. Optimización global eficiente y efectiva en la inversión de datos de campos potenciales

    OpenAIRE

    Pedro G. Junco-Bernázar; Jorge Gotay-Sariñas

    2003-01-01

    Los problemas inversos de campos potenciales son difíciles de resolver utilizando métodos automáticos, sobre todo por la incapacidad de los procedimientos tradicionales de localizar globalmente el conjunto óptimo de los parámetros. Este artículo establece la naturaleza de los múltiples óptimos locales en la inversión de datos de campos potenciales en un modelo de seis parámetros y analiza la consistencia de tres métodos de optimización global: un método de multicomienzo con el algoritmo Simpl...

  1. EL ARTE DE SER TERAPEUTA. ¿QUÉ HACE EFECTIVA UNA INTERVENCIÓN EN EL CONSUMO DE DROGAS?

    OpenAIRE

    Ayme Pacheco Trejo; Kalina Martínez Martínez

    2013-01-01

    El objetivo del presente trabajo fue identificar las variables inespecíficas relacionadas con el éxito de un programa de intervención breve para adolescentes consumidores de alcohol, según la experiencia y opinión de un grupo de terapeutas del programa. Se reporta la información obtenida en entrevistas realizadas a ocho terapeutas y dos líderes del proyecto. Los resultados muestran que los factores asociados con el éxito de la intervención se relacionan con poseer conocimietos firmes sobre la...

  2. La inteligencia intrapersonal en el aula de inglés de primaria: una medicina efectiva contra el fracaso escolar

    OpenAIRE

    García Gómez, Antonio

    2006-01-01

    La existencia de diferentes estilos de aprendizaje es un hecho probado en la bibliografía (Ehrman, 1996; Reid 1996). El presente estudio se propone, por un lado, presentar una breve reflexión sobre la problemática existente en nuestro sistema educativo y, por otro lado, analizar de manera crítica la teoría de las inteligencias múltiples propuesta por Howard Gardner (1983) y su aplicabilidad al aula de inglés de educación primaria. Nuestro estudio es el resultado de un estudio realiza...

  3. La influencia del desarrollo de la creatividad sobre el autoconcepto infantil

    OpenAIRE

    Arranz-Otegui, Leire

    2014-01-01

    Este trabajo fin de grado pretende analizar cómo influye el aumento de la capacidad creativa de los alumnos sobre el desarrollo del autoconcepto infantil. Para ello, tras profundizar de forma teórica en los principales conceptos y determinar los instrumentos de medida a utilizar para delimitar las dos variables, se presentó una efectiva propuesta de intervención que logró potenciar de manera significativa la creatividad de los alumnos. Una vez contrastados los resultados, llega...

  4. "Más piedad que improperios" : un informe pericial del Dr. Egas Moniz sobre homosexualidad

    OpenAIRE

    Molina Artaloytia, Francisco

    2016-01-01

    A principios del siglo XX, Egas Moniz, insigne neurólogo y Premio Nobel portugués, emitió un informe pericial sobre homosexualidad para un caso de anulación matrimonial que constituye un material de gran valor como ejemplo de aplicación efectiva del conocimiento sexológico disponible en la época. En este mismo periodo la flamante legislación republicana estableció la anulación del matrimonio contemplando causas de carácter médico y se tipificaron penalmente las relaciones entre personas del m...

  5. Evaluación comparativa del desempeño de los sistemas estatales de salud usando cobertura efectiva Benchmarking of performance of Mexican states with effective coverage

    Directory of Open Access Journals (Sweden)

    Rafael Lozano

    2007-01-01

    Full Text Available Realizar un análisis comparativo del desempeño (benchmarking de las unidades subnacionales en un sistema de salud descentralizado es importante para favorecer la rendición de cuentas, monitorear el progreso, identificar los factores que determinan tanto el éxito como el fracaso, y crear una cultura basada en la evidencia. Desde 2001, la Secretaría de Salud de México se ha dedicado a desarrollar esta tarea basándose en el concepto de cobertura efectiva promovido por la Organización Mundial de la Salud (OMS, que la define como la fracción de ganancia potencial en salud que el sistema de salud podría aportar, con los servicios que actualmente ofrece. Usando los sistemas de información en salud, que incluyen encuestas de salud representativas a nivel estado, registros vitales y registros de egresos hospitalarios, se ha monitoreado la prestación de 14 intervenciones para mejorar la salud entre 2005 y 2006. La cobertura efectiva en general va desde 54% en Chiapas hasta 65% en el Distrito Federal. La cobertura efectiva para intervenciones en salud materno-infantil es mayor que para las intervenciones que abordan otros problemas de salud del adulto. La cobertura efectiva para el quintil de ingresos más bajo es de 52%, comparada con 61% para el quintil de ingresos más alto. La cobertura efectiva guarda especial relación con el gasto público en salud per cápita en todos los estados, y esta relación es más estrecha con las intervenciones ajenas a la salud materno-infantil que con las que tienen que ver directamente con ella. También se observan variaciones considerables en la cobertura efectiva en niveles de gasto similares. Asimismo, se discuten algunas implicaciones para el desarrollo que debiera seguir el sistema de información en salud en México. Este enfoque alienta a quienes toman decisiones a concentrarse en brindar servicios de calidad y no sólo en ofrecer la disponibilidad del servicio. El cálculo de la cobertura efectiva

  6. Tendencias y cambio del clima del valle del Mantaro mediante los análisis de índices de Precipitación Efectiva y Temperatura Eficiente

    Directory of Open Access Journals (Sweden)

    Jacinto Arroyo Aliaga

    2011-06-01

    Full Text Available Objetivos: La investigación fue para evaluar los cambios y tendencias del clima del valle del Mantaro en función del análisis de sus índices de temperatura eficiente y precipitación efectiva a partir de los valores totales mensuales de precipitación y valores medios mensuales de temperatura, medidos desde el año 1921 hasta el año 2010, para comparar la tendencia de los movimientos seculares con la teoría del calentamiento climático global. Métodos: Para encontrar las tendencias de las precipitaciones y temperatura, se analizaron los índices de precipitación efectiva y temperatura eficiente; luego se determinó el comportamiento interanual de la precipitación y temperatura con sus rangos de variabilidad máximo y mínimo para determinar el tipo de clima en función del coeficiente de variación; las series permitió encontrar las tendencias cíclicas de corta y larga duración mediante el análisis de índices para evaluar la tendencia general. Resultados: Las tendencias observadas en las series cíclicas de larga duración de los índices de temperatura eficiente y precipitación efectiva muestran un comportamiento inversamente proporcional a su movimiento secular, el aumento de la temperatura genera disminución en las precipitaciones y los movimientos seculares muestran estos cambios para la temperatura en cuarenta años y de ochenta años para la precipitación. Conclusiones: Los cambios y tendencias encontradas para el clima del valle del Mantaro muestran un mayor calentamiento y una disminución de la precipitación en las décadas analizadas, siendo los últimos años de la década del 2000 la fase de inversión; por lo tanto se afianza la teoría del calentamiento climático global.

  7. Evolución posquirúrgica de la hipertensión arterial pulmonar asociada a conducto arterioso permeable a una altitud de 2680 metros sobre el nivel del mar

    OpenAIRE

    Morales-Quispe,Jorge Alberto; Espinola-Zavaleta, Nilda; Caballero-Caballero,Rocío; Merino-Pasaye,Laura Elizabeth; Solano-Gutierrez,Alejandro; Rodríguez-Ortega,Fernando

    2012-01-01

    Introducción: El conducto arterioso permeable puede provocar hipertensión arterial pulmonar; éste ocupa el primer lugar de las cardiopatías congénitas quirúrgicas en la ciudad de Toluca, México. Métodos: En el periodo comprendido entre enero del 2006 y diciembre del 2011 se operaron 51 pacientes con conducto arterioso permeable: 34 (66.7%) del sexo femenino. Se estudia la reversibilidad de la presión arterial pulmonar y de la dilatación de cavidades izquierdas posterior al cierre quirúrgico d...

  8. Influência de programas não-formais de exercícios (doméstico e comunitário sobre a aptidão física, pressão arterial e variáveis bioquímicas em pacientes hipertensos

    Directory of Open Access Journals (Sweden)

    Liane Mattos Pinto Vivian

    2003-01-01

    Full Text Available Fundamentos e objetivo: O exercício físico é aceito como estratégia complementar no tratamento da hipertensão arterial. Contudo, são poucos os estudos que analisaram o efeito potencial de programas cujo controle do volume de treinamento é menos estrito, principalmente os não-supervisionados. Assim, o estudo investigou os efeitos de dois programas não-formais de exercício sobre a pressão arterial, aptidão física e perfil bioquímico sanguíneo de adultos hipertensos. Métodos: Foram acompanhados por 18 meses participantes um programa de exercícios não-supervisionado (extramuros (n = 29; idade = 53 ± 11 anos e outro de tipo comunitário (ginástica (n = 42; idade = 62 ± 9 anos. Foram analisados os níveis de pressão arterial, aptidão física (peso corporal, percentual de gordura, IMC, somatório de dobras, relação cintura-quadril, capacidade cardiorrespiratória e variáveis bioquímicas (colesterol total, LDL, HDL, triglicerídeos e glicemia. O programa extramuros consistia em atividades programadas para serem feitas em casa (caminhada e flexibilidade, três vezes por semana, com treinamento dos sujeitos para controle da intensidade e duração das atividades e preenchimento de fichas individuais, que eram entregues periodicamente à equipe de pesquisa. O programa comunitário envolvia atividades ginásticas em grupo, ministradas por profissionais de educação física, também feitas três vezes por semana. Em ambos os programas, as variáveis foram medidas trimestralmente e os dados tratados por meio de ANOVA para medidas repetidas (p < 0,05. Resultados e conclusão: Os resultados indicaram que ambos os programas tiveram efeitos positivos, principalmente na composição corporal (quantitativa e distribuição regional e perfil lipídico sanguíneo. As repercussões sobre a pressão arterial, apesar de identificadas estatisticamente, revelaram-se menos consistentes. Não houve efeitos importantes sobre o perfil bioqu

  9. EL PAPEL DE LA MOTIVACIÓN INTRÍNSECA, LOS ESTILOS DE APRENDIZAJE Y ESTRATEGIAS METACOGNITIVAS EN LA BÚSQUEDA EFECTIVA DE INFORMACIÓN ONLINE

    Directory of Open Access Journals (Sweden)

    Ana Cázares Castillo

    2009-01-01

    Full Text Available A una muestra de 50 estudiantes se le aplicaron tres escalas: el Cuestionario Honey -Alonso de Estilos de Aprendizaje (CHAEA, 1997, el Inventario de Conciencia Metacognitiva, de Schraw y Dennison, 1994, la Escala de Motivación del MSLQ (Motivated Strategies Learning, de Pintrich et al 1993; la información que los estudiantes recuperaron desde Internet se valoró con la Lista de Chequeo o Cotejo para estimar la calidad de la Información Recuperada, de Luján (2003. La hipótesis principal de este estudio es que la motivación, específicamente la orientación de carácter intrínseco hacia la tarea (búsqueda efectiva de información online, tendrá un fuerte papel en el desempeño en ésta. Los resultados confirman esta hipótesis.

  10. ¿Es efectiva la aplicación de apósitos en las heridas quirúrgicas que cierran por primera intención para prevenir la infección?

    Directory of Open Access Journals (Sweden)

    Miriam Paula Marcos

    2015-06-01

    Full Text Available Pregunta clínica: En los pacientes con riesgo de infección en la herida quirúrgica, ¿es efectiva la aplicación de apósitos en las heridas quirúrgicas que cierran por primera intención para prevenir la infección? Artículo seleccionado: Walter CJ, Dumville JC, Sharp CA, Page T. Systematic review and meta-analysis of wound dressings in the prevention of surgical-site infections in surgical wounds healing by primary intention. Br J Surg. 2012;99(9:1185-94. doi: 10.1002/bjs.8812. Resumen del estudio: se trata de una revisión sistemática y metaanálisis, que pretende comparar los apósitos alternativos o los apósitos en la herida con dejarlas expuestas para el tratamiento posoperatorio de las heridas quirúrgicas que cicatrizan por primera intención. Comentario: El estudio se adecua a los criterios propuestos en la lista de comprobación PRISMA para revisiones sistemáticas, siendo en términos generales de buena calidad. No hubo evidencia de que algún apósito redujese significativamente las tasas de infección de la herida quirúrgica en comparación con cualquier otro o con la exposición al aire de la herida. Tampoco hubo diferencias en relación con el dolor, cicatrización o aceptación del apósito. La calidad de la evidencia es alta según la clasificación GRADE. Conclusiones: no se identificaron diferencias en las tasas de infección entre las heridas quirúrgicas cubiertas con algún apósito y las que quedaban al descubierto. Sin embargo, las decisiones sobre aplicar un apósito en la herida se deben basar tanto en los costos del apósito y en las propiedades para el control de los síntomas ofrecidas por cada tipo de apósito como en el control de los exudados.

  11. La utilización efectiva de los factores cualitativos de la materialidad: un análisis empírico para los ausitores de cuentas ejercientes en España

    Directory of Open Access Journals (Sweden)

    Ana Fernándes-Laviada

    2008-06-01

    Full Text Available Organismos internacionales como la SEC (1999 y la IFAC (2006 han mostrado una gran preocupación por las graves consecuencias que la incorrecta aplicación de la materialidad tiene sobre la calidad de la información financiera publicada por las empresas. El propósito de este trabajo es analizar la predisposición de los auditores españoles a introducir salvedades en sus informes a causa de incidencias situadas por debajo de los niveles cuantitativos de materialidad si éstas se relacionan con ciertos factores de naturaleza cualitativa. Los resultados obtenidos, basados en las respuestas de 338 profesionales ejercientes, permiten identificar tres grupos de auditores con distinto grado de conservadurismo, es decir, con distinta inclinación hacia la utilización efectiva de la vertiente cualitativa de la materialidad (permisivos, moderados y severos. Además, variables como la edad, la formación académica, la facturación de la firma y el número y tipo de empresas auditadas, ayudan a explicar la propensión de los auditores a pertenecer a uno de estos grupos.International organizations such as the SEC (1999 and the IFAC (2006 have shown a great concern about the serious consequences that misapplication of materiality has on the quality of financial information published by companies. The aim of this paper is to analyze the predisposition of Spanish auditors towards issuing qualified audit reports due to uncorrected misstatements lower than the quantitative materiality levels if they relate to some qualitative factors. The results obtained, based on the responses from 338 practising professionals, allow to identify three groups of auditors with different degree of conservatism, that is, with different inclination to the effective use of the qualitative side of materiality (permissive, moderate and strict. Furthermore, variables as the age, academic training, firm turnover, and number and kind of companies audited, assist to explain the

  12. EL ARTE DE SER TERAPEUTA: ¿QUÉ HACE EFECTIVA UNA INTERVENCIÓN EN EL CONSUMO DE DROGAS?

    Directory of Open Access Journals (Sweden)

    Ayme Pacheco Trejo

    2014-01-01

    Full Text Available El objetivo del presente trabajo fue identificar las variables inespecíficas relacionadas con el éxito de un programa de intervención breve para adolescentes consumidores de alcohol, según la experiencia y opinión de un grupo de terapeutas del programa. Se reporta la información obtenida en entrevistas realizadas a ocho terapeutas y dos líderes del proyecto. Los resultados muestran que los factores asociados con el éxito de la intervención se relacionan con poseer conocimietos firmes sobre las bases teóricas que sustentan el modelo, dominio amplio del programa y sus componentes, actitud de compromiso hacia el programa, creencia en las posibilidades del cambio en los adolescentes y habilidades de empatía, motivación y reforzamiento. Con base en los hallazgos, se discute la importancia de entrenar y supervisar la adquisición de estas variables en terapeutas noveles.

  13. Optimización global eficiente y efectiva en la inversión de datos de campos potenciales

    Directory of Open Access Journals (Sweden)

    Pedro G. Junco-Bernázar

    2003-03-01

    Full Text Available Los problemas inversos de campos potenciales son difíciles de resolver utilizando métodos automáticos, sobre todo por la incapacidad de los procedimientos tradicionales de localizar globalmente el conjunto óptimo de los parámetros. Este artículo establece la naturaleza de los múltiples óptimos locales en la inversión de datos de campos potenciales en un modelo de seis parámetros y analiza la consistencia de tres métodos de optimización global: un método de multicomienzo con el algoritmo Simplex (MSX, un algoritmo genético combinado con el Simplex (GSX y el método de Evolución y Mezcla de Complejos (SCE. Todos los algoritmos fueron capaces de encontrar el conjunto de parámetros óptimos durante el proceso de inversión de campo potencial para un modelo de seis parámetros. En 100 pruebas independientes de cada algoritmo, el procedimiento del SCE se comporta tres veces más eficiente que el procedimiento MSX y dos veces más eficiente que el procedimiento GSX. El método GSX es dos veces más eficiente que el procedimiento MSX.

  14. EL ARTE DE SER TERAPEUTA. ¿QUÉ HACE EFECTIVA UNA INTERVENCIÓN EN EL CONSUMO DE DROGAS?

    Directory of Open Access Journals (Sweden)

    Ayme Pacheco Trejo

    2013-01-01

    Full Text Available El objetivo del presente trabajo fue identificar las variables inespecíficas relacionadas con el éxito de un programa de intervención breve para adolescentes consumidores de alcohol, según la experiencia y opinión de un grupo de terapeutas del programa. Se reporta la información obtenida en entrevistas realizadas a ocho terapeutas y dos líderes del proyecto. Los resultados muestran que los factores asociados con el éxito de la intervención se relacionan con poseer conocimientos firmes sobre las bases teóricas que sustentan el modelo, dominio amplio del programa y sus componentes, actitud de compromiso hacia aquel, creencia en las posibilidades del cambio en los adolescentes y habilidades de empatía, motivación y reforzamiento. Con base en los hallazgos, se discute la importancia de entrenar y supervisar la adquisición de estas variables en terapeutas noveles.

  15. Efedrina versus fenilefrina: prevenção de hipotensão arterial durante anestesia raquídea para cesariana e efeitos sobre o feto Efedrina versus fenilefrina: prevención de hipotensión arterial durante anestesia raquidea para cesárea y efectos sobre el feto Ephedrine versus phenylephrine: prevention of hypotension during spinal block for cesarean section and effects on the fetus

    Directory of Open Access Journals (Sweden)

    Edno Magalhães

    2009-02-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: A hipotensão arterial durante a anestesia raquídea para cesariana deve-se ao bloqueio simpático e compressão aorto-cava pelo útero e pode ocasionar efeitos deletérios para o feto e a mãe. A efedrina e fenilefrina melhoram o retorno venoso após bloqueio simpático durante anestesia raquídea. O objetivo deste estudo foi comparar a eficácia da efedrina e da fenilefrina em prevenir e tratar a hipotensão arterial materna durante anestesia raquídea e avaliar seus efeitos colaterais e alterações fetais. MÉTODO: Sessenta pacientes, submetidas à anestesia raquídea com bupivacaína e sufentanil para cesariana, foram divididas aleatoriamente em dois grupos para receber, profilaticamente, efedrina (Grupo E, n = 30, dose = 10 mg ou fenilefrina (Grupo F, n = 30, dose = 80 µg. Hipotensão arterial (pressão arterial menor ou igual a 80% da medida basal foi tratada com bolus de vasoconstritor com 50% da dose inicial. Foram avaliados: incidência de hipotensão arterial, hipertensão arterial reativa, bradicardia e vômitos, escore de Apgar no primeiro e quinto minutos e gasometria do cordão umbilical. RESULTADOS: A dose média de efedrina foi 14,8 ± 3,8 mg e 186,7 ± 52,9 µg de fenilefrina. Os grupos foram semelhantes quanto aos parâmetros demográficos e incidência de vômitos, bradicardia e hipertensão arterial reativa. A incidência de hipotensão arterial foi de 70% no Grupo E e 93% no Grupo F (p JUSTIFICATIVA Y OBJETIVOS: La hipotensión arterial durante la anestesia raquídea para cesárea se debe al bloqueo simpático y a la compresión aortocava por el útero y puede ocasionar efectos malignos para el feto y su madre. La efedrina y fenilefrina mejoran el retorno venoso después del bloqueo simpático durante la anestesia raquídea. El objetivo de este estudio fue comparar la eficacia de la efedrina y de la fenilefrina en prevenir y tratar la hipotensión arterial materna durante la anestesia raquídea y

  16. Carotid Artery Screening

    Science.gov (United States)

    ... Resources Professions Site Index A-Z Carotid Artery Screening What is carotid artery screening? Who should consider ... about carotid artery screening? What is carotid artery screening? Screening examinations are tests performed to find disease ...

  17. ESTIMACIÓN DE LA DEGRADABILIDAD EFECTIVA EN EL RUMEN MEDIANTE MÉTODOS NUMÉRICOS ESTIMATION OF EFFECTIVE DEGRADABILITY IN RUMEN TROUGH NUMERICAL METHODS

    Directory of Open Access Journals (Sweden)

    Héctor Jairo Correa Cardona

    2008-12-01

    Full Text Available La estimación correcta de la degradabilidad ruminal efectiva en el rumen (DE de las distintas fracciones nutricionales de los alimentos es fundamental para el desarrollo de programas eficientes de alimentación para rumiantes. La propuesta clásica para estimar la degradabilidad efectiva en el rumen de la fracción potencialmente degradable (DEb=bKd/(Kd+Kp, no es correcta ya que se basa en la presunción de que las constantes de la cinética de la degradabilidad (Kd y del pasaje ruminal (Kp representan la velocidad de fermentación y de pasaje ruminal, respectivamente cuando estas realmente representan la relación constante entre la aceleración y la velocidad de degradación y de pasaje. Se presenta, entonces, una nueva propuesta coherente con las bases matemáticas de la cinética de la degradación y el pasaje ruminal de la fracción potencialmente degradable en el rumen (b que requiere el uso de métodos numéricos para despejar el tiempo “t” de la expresión 1 = e-kd*t + e-kp*t, que al reemplazarlo en la expresión b*e-kd*t, permite calcular la DEb. La estimación de la DEb por este método permite obtener datos confiables y coherentes con las bases matemáticas de la cinética de la degradación y el pasaje ruminal de las fracciones nutricionales.A correct estimation of effective degradability in rumen of nutritional fractions of feedstuff is basic to develop efficient feed programs to ruminants. However, the classic proposal to estimate the effective degradability in rumen of potentially degradable fraction (EDb=bKd/(Kd+Kp, is not correct since it is based on the presumption that the constants of the kinetics of the ruminal degradability (Kd and passage (Kp represent the speed of the ruminal fermentation and passage, respectively, when these really represent the constant relationship between the acceleration and speed of degradation and of passage. In this paper is then proposed a new mathematical procedure coherent with the

  18. Carotid Artery Disease

    Science.gov (United States)

    ... brain with blood. If you have carotid artery disease, the arteries become narrow, usually because of atherosclerosis. ... one of the causes of stroke. Carotid artery disease often does not cause symptoms, but there are ...

  19. Mesenteric artery ischemia

    Science.gov (United States)

    Mesenteric artery ischemia occurs when there is a narrowing or blockage of one or more of the three major arteries that ... that supply blood to the intestine causes mesenteric ischemia. The arteries that supply blood to the intestines ...

  20. Papel de los esteroles vegetales presentes de forma natural en la dieta sobre la absorción intestinal de colesterol y sus niveles plasmáticos

    OpenAIRE

    Sanclemente Hernández, Teresa Mª; Marques Lopes, Iva; Puzo Foncillas, José

    2011-01-01

    Modular la absorción intestinal de colesterol es una forma potencialmente efectiva de disminuir los niveles sanguíneos de colesterol y el riesgo cardiovascular inherente en la población general. La eficacia de absorción puede modificarse mediante la ingesta de alimentos enriquecidos con fitoesteroles pero poco se conoce sobre los efectos de las cantidades presentes naturalmente en la dieta habitual aunque se ha descrito que dosis moderadas afectan al metabolismo corporal de colesterol. El obj...

  1. Marco jurídico colombiano de justicia transicional. Balance y propuestas desde una seudo democracia a una real y efectiva

    OpenAIRE

    Helber Armando Noguera-Sanchez; Maria Paula Lemus-Parra

    2015-01-01

    Desde el año 2005 se habla normativamente en Colombia de Justicia transicional. Básicamente se han proferido las leyes 975 de 2005 “de justicia y paz”, 1424 de 2010 “sobre los acuerdos de contribución histórica por la verdad”, 1448 de 2011 “de víctimas y restitución de tierras” y el Acto legislativo 001 de 2012 “marco jurídico para la paz”. Cada una de tales normas han tenido perspectivas divergentes y sobre ellas los balances son diversos. Lo que se propone el presente documento es realizar ...

  2. Presión parcial de oxígeno, pH, hematocrito, hemoglobina e índice cardíaco en pollos de engorde a 2.600 metros sobre el nivel del mar Arterial blood oxygen partial pressure, hematocrit, haemoglobin, and cardiac index in broilers at 2600 m above sea level

    Directory of Open Access Journals (Sweden)

    E. JIMENEZ

    1998-01-01

    Full Text Available La incidencia de hipertensión arterial pulmonar (HP en pollosparrilleros constituye un problema económico importante. Dentrode los mecanismos de adaptación del organismo a la altitud se encuentran,además del aumento de la tensión arterial pulmonar, el incremento de la masa muscular ventricular derecha, la policitemía y posiblemente la hiperventilación con la subsecuente alcalosis respiratoria. Es factible que el alto nivel de energía en la ración incremente la hipoxemia derivada de la hipoxia; con lo anterior, el grado de policitemia se puede elevar y producirse un efecto agravante de la HP. Para establecer valores de pO2, Ht, Hb e IC en pollos parrilleros residentes a 2.600 m de altura sobre el nivel del mar, se estudiaron 24 aves de ambos sexos, de una población de 400 animales. Los valores promedios obtenidos fueron los siguientes: a pO2: 67.21 mmHg ± 5.21. Hubo diferencias estadísticas (pWideman y Buss (1985y Julian y col. (1985. La correlación inversa entre el IC y la pO2 arterial indican el efecto de la hipoxia de las vías aéreas en la hipoxemia y en el grado de hipertrofia e hiperplasia ventricular derecha.High incidence of cardiac failure in broilers due to hypoxic pulmonaryhypertension (PH, produces huge economical losses. Adaptive responsesinclude right ventricular hypertrophy and polycythemia. High energy levelin feed could increase hypoxemia and therefore the degree of polycythemia,thus increasing PH. To establish normal values in arterial oxygen partialpressure (pO2, pH, hematocrit (Ht, haemoglobin (Hb, and cardiacindex (CI, 24 broilers (12 males and 12 females, chosen at random, froma population of 400 birds, were studied in Bogotá, Colombia, 2600m above sea level. Mean values obtained were as follows: a pO2:67.21 ± 5.21 mmHg; statistical differences between sexes and among ages were found (p<0.05; b pH: 7.5 ± 0.05; c Ht: 37.13 ± 3.27%. In males, Ht values were higher at 24 and 37 days. In females, therewas a

  3. Efeitos de exercícios aquáticos sobre a aptidão cardiorrespiratória e a pressão arterial em hipertensas Effects of aquatic exercise on cardiorespiratory fitness and blood pressure in hypertensive women

    Directory of Open Access Journals (Sweden)

    Lisiane Piazza

    2008-09-01

    Full Text Available O estudo visou avaliar a influência de um programa de exercícios aquáticos sobre a aptidão cardiorrespiratória e a pressão arterial em mulheres hipertensas. Dez hipertensas participaram do programa de exercícios aquáticos - aeróbicos, de fortalecimento, alongamento e relaxamento - duas vezes por semana durante 7 semanas, totalizando 14 sessões. Foram avaliadas pelo teste de esforço cardiorrespiratório antes e após o desenvolvimento do programa. A pressão arterial foi mensurada ao repouso e aos 10, 20 e 30 minutos após o exercício em cada sessão. As variáveis cardiorrespiratórias não apresentaram alterações significativas após o programa, tanto dos valores de limiar de anaerobiose quanto os do pico de esforço. As pressões arteriais sistólica, diastólica e média de repouso permaneceram estáveis no decorrer do programa. Entretanto, no período pós-exercício, os níveis da pressão arterial sistólica (PAS e média (PAM foram significativamente menores, quando comparados aos valores pré-exercício: houve redução média de 6,43 mmHg da PAS e 3,08 mmHg da PAM aos 30 minutos pós-exercício. Assim, o programa de exercícios aquáticos proposto não promove ganho aeróbico efetivo, mas os resultados sugerem que exercícios aquáticos como os propostos, em intensidade próxima ao limiar de anaerobiose, desencadeiam redução dos níveis de pressão arterial no período pós-exercício, em mulheres hipertensas.The aim of this study was to assess the influence of an aquatic exercise program on cardiorespiratory fitness and blood pressure in hypertensive women. Ten hypertensive women took part in the study. The program consisted of aquatic aerobic, strengthening, and stretching exercises in intensity near the anaerobic threshold, besides relaxation, twice a week during 7 weeks, totalling 14 sessions. They were assessed by cardiorespiratory exercise testing before and after program development. Blood pressure was measured at

  4. Evaluación de los efectos del policosanol sobre manifestaciones del daño pulmonar inducido por monocrotalina en ratas

    Directory of Open Access Journals (Sweden)

    Vivian Molina

    2009-01-01

    Full Text Available La hipertensión arterial pulmonar, (HTAP enfermedad crónica que afecta frecuentemente a la población adulta, conduce a una discapacidad importante y progresiva. Las estatinas, agentes hipolipemiantes que inhiben la síntesis de colesterol mediante la inhibición competitiva de la HMG-CoA reductasa que además inhiben la proliferación de las células musculares lisas (CML, han sido referidas como una opción actual para tratar esta enfermedad. El policosanol es una mezcla de alcoholes alifáticos superiores obtenida de la cera de caña que también inhibe la síntesis de colesterol mediante la regulación indirecta de la actividad de la HMG-CoA reductasa, con acción antiproliferativa sobre las CML. Resulta racional investigar si el policosanol protege el daño pulmonar inducido en modelos experimentales en los cuales las estatinas han mostrado ser efectivas. Este estudio investigó los efectos del tratamiento oral con policosanol sobre el daño pulmonar inducido por monocrotalina (MCT en ratas. Para ello, las ratas se distribuyeron en cuatro grupos: un control negativo tratado vía subcutánea (s.c. con disolución salina y por vía oral con el vehículo tween 20/agua y tres inyectados con dosis s.c. únicas de MCT (60 mg/kg, uno tratado por vía oral con el vehículo (control positivo y dos con policosanol (20 y 200 mg/kg. Los tratamientos comenzaron el día de la inyección con MCT y se administraron por 28 d . Se cuantificó el porcentaje de supervivencia, el peso corporal, el peso del pulmón completo, la hipertrofia ventricular y se realizó el estudio histológico. La MCT aumentó significativamente el peso del pulmón, redujo significativamente el peso corporal y produjo marcada hipertrofia ventricular derecha y severa hipertrofia de la capa media arterial, mostrando la validez del modelo. Contrario a lo esperado, al compararse con los datos del control positivo, el policosanol (20 y 200 mg/kg no modificó significativamente ninguna

  5. Influência do treino fisico moderado sobre a estrutura da parede arterial de ratos submetidos à desnutrição proteica gestacional e neonatal Influence of moderate physical training on the artery wall structure of rats submitted to gestational and neonatal protein malnutrition

    Directory of Open Access Journals (Sweden)

    Danielle Augusta De Sá Xerita Maux

    2009-10-01

    Full Text Available Avaliamos o efeito do treinamento físico moderado (TFM associado à reposição nutricional na parede das artérias carótida comum esquerda e aorta horizontal em 24 ratos Wistar machos adultos jovens, submetidos à desnutição proteica nas fases gestacional e neonatal. Os animais foram divididos em grupos Nutrido (N, n = 12, caseína 17% e Desnutrido (D, n = 12, caseína 8%. Após o desmame, todos os animais receberam dieta padrão (Labina® e aos 60 dias de vida, os dois grupos foram subdivididos em quatro com seis animais cada: Nutrido Não Treinado (NNT, Nutrido Treinado (NT, Reposição Não Treinado (RNT e Reposição Treinado (RT. O TFM foi realizado em esteira durante oito semanas, cinco dias por semana, 60 minutos por dia. A histomorfometria de ambas as artérias foi realizada com o programa Scion Image for Windows (Beta 4.0.2. A espessura das paredes das artérias foi obtida a partir da média de aferição de quatro pontos diferentes (0°, 90°, 180°, 270° e o diâmetro do lúmen dos vasos, a partir da média de aferição de dois valores, partindo de quatro pontos diametralmente opostos. Para a comparação entre os grupos utilizou-se o teste t de Student com os dados apresentados em média ± desvio padrão. A espessura média das artérias carótida comum esquerda (µm e aorta horizontal (mm foi menor no grupo RNT (32,51 ± 5,54; 0,11 ± 0,02, respectivamente, comparado com o NNT (40,91 ± 3,56; 0,15 ± 0,01. O diâmetro (µm da artéria carótida comum esquerda foi maior nos animais RT (724 ± 44,64 do que nos RNT (630,73 ± 79,67. Conclui-se que o TFM associado à reposição nutricional não foi capaz de recuperar as alterações estruturais provocadas pela desnutrição na parede das artérias carótida comum esquerda e aorta horizontal.We evaluated the effects of moderate physical training (MPT associated with nutritional recovery on the left common carotid artery and horizontal carotid walls in 24 male, Wistar adult male

  6. Hipertensión arterial y auriculoterapia

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    José Ramón Martínez Pérez

    2015-05-01

    Full Text Available La hipertensión arterial es uno de los principales factores de riesgo cardiovascular; la tendencia mundial al incremento de la expectativa de vida ha propiciado un tránsito mayor al envejecimiento y simultáneamente un incremento de su prevalencia. Las evidencias científicas para apoyar la efectividad de la auriculoterapia en el tratamiento de esta enfermedad resultan aparentemente insuficientes, por lo que muchos profesionales de la salud la desestiman, lo que dio motivo a realizar un trabajo de revisión de la literatura científica, con el objetivo de abordar aspectos relacionados con la aplicación de la auriculoterapia en el tratamiento de la hipertensión arterial, así como esclarecer los mecanismos a través de los cuales reduce la presión sanguínea. Se encontró que en la genesis de la hipertensión arterial intervienen lesiones por plenitud calurosa, o exceso de Yang de hígado, y por calor por vacío, o deficiencia del Yin de riñón. El efecto corrector de la auriculoterapia sobre la hipertensión arterial se explica a través de mecanismos neurológicos, humorales y bioeléctricos que producen sedación, vasodilatación, diuresis e hipotensión; entre los puntos de la auriculopuntura más utilizados en el tratamiento de la hipertensión arterial se incluyen: shenmen auricular, hipertensión arterial 1 y 2, corazón e hígado. Se hacen algunas consideraciones sobre el tema

  7. What patients with diabetes mellitus type 2 know on their disease Nivel de conocimientos sobre diabetes mellitus en pacientes con diabetes tipo 2

    Directory of Open Access Journals (Sweden)

    Eduardo Castañedo Álvarez

    2010-12-01

    Full Text Available Background: education on diabetes is one of the key objectives of general care for people with diabetes mellitus and should be effectively implemented in order to provide patients with more information about their disease. Objective: to determine how much patients with type 2 diabetes know about the disease. Methods: descriptive study of a case series conducted between January and June 2008. The universe consisted on 120 patients from the ‘’Area V ‘’ Polyclinic of Cienfuegos who were diagnosed with diabetes mellitus, type 2. In order to determine how much patients know about the disease a pre-test designed by the working group of the Center for Diabetes Care and Education was applied to all patients admitted in the institution. Results: females predominated over males. The largest number of patients was between 5 and 10 years and more than 10 years of disease progression (40% in both groups. In the first group 21, 7% of patients have an inadequate knowledge standard on the disease and in the second one, the same situation occurs in 25% of them. Hypertension and ischemic heart disease were the chronic diseases associated with more patients and polyneuropathy and neuropathy were the most common chronic complications. Conclusions: patients with diabetes need a steady educational work to acquire more knowledge on their disease and to live better with it.

    Fundamento: la educación diabetológica es uno de los objetivos fundamentales de la atención integral a las personas con diabetes mellitus y debe desarrollarse de manera efectiva para lograr un mayor conocimiento en quienes padecen esta enfermedad.
    Objetivo:
    determinar el nivel de conocimientos sobre diabetes mellitus en pacientes con diabetes tipo 2.
    Métodos: estudio descriptivo de una serie de casos realizado en el período comprendido

  8. Digital signage sobre IP

    OpenAIRE

    Casademont Filella, Albert

    2012-01-01

    Projecte que versa sobre el disseny i la implementació d'un sistema de Digital Signage (Cartelleria Digital) sobre IP, creant un gestor que permeti controlar de forma remota tot un conjunt de petits dispositius connectats a pantalles que emeten continguts multimèdia com vídeos, imatges, feeds rss...

  9. Fallas de transparencia: hacia una incorporación efectiva de políticas de transparencia en las organizaciones públicas

    OpenAIRE

    David Arellano Gault

    2007-01-01

    La discusión sobre la apertura de la información gubernamental forma parte de un debate mucho más amplio: el de la transparencia como principio gen eral de una sociedad democrática. En México, el avance de esta agenda ha sido importante sin lugar a dudas. Sin embargo, este de bate está basado, muchas veces, en una especie de esperanza poco fundamentada teórica y analíticamente. Darle contenido a la categoría social "transparencia" pareciera fundamental, con el fin de dirigirse hacia agen d...

  10. REFORMAS DE LA EJECUCIÓN CIVIL Y DEL PROCESO MONITORIO: LA APUESTA CHILENA POR LA TUTELA JUDICIAL EFECTIVA Y EL DERECHO DE ACCESO A UN DEBIDO PROCESO

    OpenAIRE

    Diego Palomo Vélez

    2014-01-01

    Este trabajo es el informe nacional de Chile elaborado para las XXIV Jornadas Ibe- roamericanas de Derecho Procesal, realizadas en Ciudad de Panamá, entre el 26 y el 28 de marzo de 2014, sobre la situación de las reformas del proceso de ejecución civil y del proceso monitorio en el país. La idea fundamental que está detrás es la cuestión de la búsqueda de la eficiencia en la Justicia en un contexto dónde se reclama contra la lentitud con la que los tribunales brindan respuesta a los justiciab...

  11. Nurses' attitudinal and normative beliefs concerning hemodynamic assessement by pulmonary artery catheterization Creencias normativas y de actitud de los enfermeros sobre el estudio hemodinámico por medio del catéter de arteria pulmonar Crenças atitudinais e normativas dos enfermeiros sobre o estudo hemodinâmico por meio do cateter de artéria pulmonar

    Directory of Open Access Journals (Sweden)

    Cristiano José Mendes Pinto

    2006-12-01

    Full Text Available The objective of this study was to identify, by using the Theory of Reasoned Action/Theory of Planned Behavior, the attitude and normative beliefs that influence the behavioral intention of the nurse to perform a hemodynamic assessment using the pulmonary artery catheterization. Data were collected through semi-structured interviews involving 23 nurses from three hospitals in the city of Campinas, São Paulo. The data were analyzed according to a qualitative methodology. Among the Attitude Beliefs, affective beliefs and those related to the advantages and disadvantages of performing the behavior stand out. Among the Normative Beliefs social referents were identified for the behavior, as well as the behavior-stimulating factors and the factors that discourage the performance of the behavior.El objetivo de este estudio fue identificar, por medio de la Teoría del Comportamiento Planificado, las creencias normativas y de actitud que contribuyen para la formación de la intención de comportamiento del enfermero en realizar el estudio hemodinámico (EH por medio del catéter de la arteria pulmonar. Los datos fueron obtenidos atraves de entrevista semi estructurada de 23 enfermeros de unidades de terapia intensiva de tres hospitales del municipio de Campinas-São Paulo. Los datos fueron analizados según la metodología cualitativa. Entre las Creencias de Actitud se destacaron las creencias afectivas y aquellas relativas a las ventajas y desventajas de la realización del comportamiento. En las Creencias Normativas se evidenciaron los referentes sociales para la ejecución del comportamiento, así como factores estimulantes y que no estimulan la realización del EH.O objetivo deste estudo foi identificar, por meio da Teoria da Ação Racional/Teoria do Comportamento Planejado, as crenças de atitude e normativas que contribuem para a formação da intenção comportamental do enfermeiro em realizar o estudo hemodinâmico (EH por meio do cateter de

  12. Occlusive Peripheral Arterial Disease

    Science.gov (United States)

    ... erythrocyte sedimentation rate (ESR) and level of C-reactive protein, which is produced only when inflammation is present. ... people with occlusive peripheral arterial disease also have coronary artery disease. Amputation of a limb may be necessary if ...

  13. Combination of Rare Right Arterial Variation with Anomalous Origins of the Vertebral Artery, Aberrant Subclavian Artery and Persistent Trigeminal Artery

    Science.gov (United States)

    Ishihara, H.; San Millán Ruíz, D.; Abdo, G.; Asakura, F.; Yilmaz, H.; Lovblad, K.O.; Rüfenacht, D.A.

    2011-01-01

    Summary A 32-year-old woman hospitalized for subarachnoid hemorrhage showed rare arterial variation on the right side with anomalous origins of the vertebral artery, aberrant subclavian artery and persistent trigeminal artery. Angiography showed the right vertebral artery to originate from the right common carotid artery, the right subclavian artery to arise separately from the descending aorta, and persistent trigeminal artery on the right side. The possible embryonic mechanism of this previously unreported variant combination is discussed. PMID:22005696

  14. On Renal Artery Stenosis

    OpenAIRE

    Eklöf, Hampus

    2005-01-01

    Renal artery stenosis (RAS) is a potentially curable cause of hypertension and azotemia. Besides intra-arterial renal angiography there are several non-invasive techniques utilized to diagnose patients with suspicion of renal artery stenosis. Removing the stenosis by revascularization to restore unobstructed blood flow to the kidney is known to improve and even cure hypertension/azotemia, but is associated with a significant complication rate. To visualize renal arteries with x-ray technique...

  15. Efecto de la adición, tipo y concentracion de nanoarcilla sobre las propiedades mecánicas y de barrera de películas biodegradables basados en quitosano

    OpenAIRE

    Garde Izquierdo, Gaizka

    2014-01-01

    La aplicación más innovadora de las películas y recubrimientos biodegradables es su empleo como matrices portadoras de distintos aditivos funcionales capaces de aumentar la seguridad, vida comercial y calidad de los alimentos. La efectividad este tipo de películas reside en el control de la migración de sus agentes activos hacia la superficie de los productos sobre los que se disponen, ayudando a la dosificación del aditivo y al mantenimiento de las concentraciones efectivas lo...

  16. Prevalencia de desnutrición e influencia de la suplementación nutricional oral sobre el estado nutricional en ancianos institucionalizados Prevalence of malnutrition and influence of oral nutritional supplementation on nutritional status in institutionalized elderly

    OpenAIRE

    Pérez Llamas, F.; A. Moregó; M. Tóbaruela; Mª D. García; E. Santo; S. Zamora

    2011-01-01

    Introducción: La suplementación nutricional puede ser una efectiva estrategia para mejorar el estado nutricional y la calidad de vida de ancianos frágiles institucionalizados. Objetivos: Se ha valorado la prevalencia de desnutrición y su relación con el tipo de enfermedad, y la influencia de la suplementación de la dieta con fórmulas orales sobre el estado nutricional en ancianos institucionalizados. Métodos: Se realizaron dos estudios, uno de diseño transversal en el que participaron 31 anci...

  17. Usos y actitudes de estudiantes universitarios futuros profesores sobre tecnologías de la información y la comunicación (TIC) y recursos sociales de internet

    OpenAIRE

    López, Adrián

    2011-01-01

    El artículo se inserta dentro de una investigación macro sobre las características que asume la alfabetización digital en los procesos de enseñanza y aprendizaje en el nivel terciario y universitario. Aquella tiene como propósito general crear nuevos conocimientos que resulten aportes significativos para el diseño de estrategias institucionales inclusivas para la efectiva inserción de los recursos digitales en la formación docente. Dentro de este marco, el presente trabajo tiene como objet...

  18. Peripheral Artery Disease

    Science.gov (United States)

    ... or atherectomy may be used to help improve blood flow. What is peripheral artery disease (PAD)? How is peripheral artery disease evaluated? How ... PAD are diabetes, smoking, high cholesterol and high blood pressure. Most cases occur in ... is peripheral artery disease evaluated? Several imaging tests can be used to ...

  19. Retinal artery occlusion

    Science.gov (United States)

    ... artery occlusion; Branch retinal artery occlusion; CRAO; BRAO Images Retina References Sanborn GE, Magargal LE. Arterial obstructive disease ... A.M. Editorial team. Related MedlinePlus Health Topics ... audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among ...

  20. Sobre el Paisaje Cultural

    OpenAIRE

    Hernández León, Juan Miguel

    2008-01-01

    El 4º Congreso Europeo sobre Investigación Arquitectónica y Urbana EURAU’08, organizado por la Escuela Técnica Superior de Arquitectura de la Universidad Politécnica de Madrid y dedicado a reflexionar sobre el “Paisaje cultural”, continúa la tarea de intercambio de conocimientos científicos y experiencias docentes entre las escuelas y facultades europeas de Arquitectura emprendida en las ediciones anteriores de Marsella, acerca de “La cuestión doctoral”, de Lille, sobre “El espacio considerad...

  1. Ultrafiltros sobre ω.

    OpenAIRE

    Mancilla Hernández, Salvador

    2012-01-01

    El objetivo del presente trabajo estudiar los ideales y filtros sobre conjuntos numerables, los que comúnmente conocemos como filtros sobre ω o ideales sobre ω. Dentro de estos, nos enfocaremos en la clase de I-ultrafiltros los cuales fueron estudiados por James Baumgartner en [11]. Y dentro de esta clase de ultrafiltros, nos concentraremos cuando I es {A ⊆ ω : n∈A g(n) < ∞}, también conocido como ideal sumable con respecto a g, donde g es una sucesión de números reales no negativ...

  2. Estudio sobre patentes y dominio público

    Directory of Open Access Journals (Sweden)

    Ernesto Rengifo García

    2011-11-01

    Full Text Available Este artículo analiza el impacto del sistema de patentes y el dominio público en el desarrollo de la ciencia, la innovación y la tecnología en Colombia. A partir de la estructuración de una política pública sobre el tema, el gobierno colombiano busca garantizar una protección efectiva para la actividad creadora y fomentar el acceso y la utilización de los avances técnicos encontrados en documentos de patente de dominio público. Los principales objetivos de esta iniciativa son fomentar la creación y la innovación mediante el uso del sistema de propiedad intelectual y su promoción como mecanismo para el desarrollo de los negocios, de la empresa y generación de empleo en el país. En virtud de dichos esfuerzos, el Estado, a través de las entidades delegadas del gobierno para tal fin, ha avanzado en la gestión y promoción de la información de patentes de dominio público, por medio de la capacitación sobre la utilización eficiente, la investigación y el uso de bancos de patentes. Si bien esta tarea ha generado avances importantes, ha sido insuficiente para consolidar la correcta utilización de las herramientas tecnológicas y es necesario reforzar las estrategias y aunar esfuerzos para que el uso de esta información pueda reflejarse en la creación de nuevas tecnologías o en la mejora de las existentes.

  3. Functional electrical stimulation training on functional capacity and blood pressure variability in a centenarian woman: case study Treinamento com estimulação elétrica funcional sobre a capacidade funcional e a variabilidade da pressão arterial em uma idosa centenária: estudo de caso

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    Bruna Eibel

    2011-08-01

    Full Text Available BACKGROUND: Functional electrical stimulation (FES is a rehabilitation method that can revert alterations provoked by aging, such as reductions in functional capacity and modifications on blood pressure variability (BPV. OBJECTIVES: To evaluate the training effects of FES on functional capacity and BPV in a centenarian woman. METHODS: A 101-year-old woman without previous disease underwent FES training for 12 weeks, with three 40 min sessions/week. FES was applied at a frequency of 20 Hz with a 0.5 ms pulse, 5 s contraction time, 10 s relaxation time, the maximum tolerable intensity and with progressive overload. Functional capacity was assessed with a six-minute walk test (6MWT and proximal lower limb strength was assessed with a sit-and-stand test (STST. BPV was measured by continuous recording of pulse pressure and calculated by spectral analysis. All variables were measured before and after FES training. RESULTS: After training there was a 70% increase in distance walked in the 6MWT, a 300% increase in the number of STST repetitions, an 8 mmHg reduction in systolic blood pressure (SBP and a 4 mmHg reduction in diastolic blood pressure (DBP and mean blood pressure (MBP. Reductions in SBP (11.8 mmHg², DBP (2.3 mmHg² and MBP (6.0 mmHg² variability were also observed. CONCLUSIONS: Three months of FES training improved functional capacity and BPV in a centenarian woman.CONTEXTUALIZAÇÃO: A estimulação elétrica funcional (EEF é uma forma de reabilitação que pode reverter alterações provocadas pelo envelhecimento, como diminuição da capacidade funcional e modificações na variabilidade da pressão arterial (VPA. OBJETIVOS: Avaliar os efeitos do treinamento com EEF sobre a capacidade funcional e a VPA em uma idosa centenária. MÉTODOS: Paciente do sexo feminino, 101 anos e sem patologia prévia. O treinamento com EEF foi realizado durante 12 semanas, sendo três sessões/semana e tempo máximo de aplicação de 40 min/sessão. A EEF

  4. Duplication of hepatic artery

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    Saeed Muhammad

    2001-01-01

    Full Text Available Background: The hepatic arterial anatomy is aberrant in almost 33-41% of individuals. The variant arterial anatomy recognized during routine cadaveric dissection offers great learning potential. Such findings provide an alternative perspective to view common morphology and its structural and functional importance. These impart the concept of patient individuality and subsequent individualization of medical and surgical therapies. Adequate knowledge of normal and abnormal arterial anatomy is essential for peripancreatic surgery and liver transplantation. Aims of the study: To report on hepatic artery variations observed in the dissecting room and to find out the macroscopic pattern of varied human hepatic arterial vascularization by cadaveric dissection. Patients and Methods: Twenty human cadavers of caucasian origin were dissected to study the source and topographic pattern of hepatic arterial supply. Results: Nineteen cadavers exhibited typical hepatic arterial supply from the celiac axis. Only one female body out of twenty cadavers exhibited a dual arterial supply to all parts of liver and gallbladder. One artery originated from the celiac axis whereas the other was given off by the superior mesenteric artery. Conclusion: No doubt, aberrant hepatic vascularization should be assessed preoperatively by invasive and noninvasive techniques to avoid fatal complications, but we favour careful dissection over angiography as a means of defining the arterial anatomy.

  5. Las prácticas de enseñanza del profesor universitario, una herramienta efectiva para el éxito pedagógico

    OpenAIRE

    Jhon Jairo Bejarano-Roncancio; Fabiola Becerra-Bulla; Diana Patricia Escobar-Gutiérrez

    2013-01-01

    Resumen Este escrito tiene la intención de abordar las prácticas de enseñanza en el contexto de la formación en la educación superior, partiendo de la definición de didáctica como las diversas estrategias que tiene el docente para enseñar, siguiendo una ruta narrativa y argumentativa sobre su fundamentación para luego explorar la dimensión de esta disciplina en el aula y en las formas de enseñanza que desarrollan los maestros en su práctica. Los hallazgos principales dentro de las prácticas d...

  6. Acute occlusion of the left subclavian artery with artery dissection

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Subclavian steal syndrome is cerebral or brain stem ischemia resulting from diversion of blood flow from the basilar artery to the subclavian artery, which is caused by occlusive disease of either the subclavian artery or the innominate artery before they branch off at the vertebral artery. In the patients with subclavian steal syndrome the subclavian artery is fed by retrograde flow from the vertebral artery via the carotids and the circle of Willis.

  7. Programa domiciliar de exercícios: efeitos de curto prazo sobre a aptidão física e pressão arterial de indivíduos hipertensos Home exercise program: short term effects on physical aptitude and blood pressure in hypertensive individuals

    Directory of Open Access Journals (Sweden)

    Paulo de Tarso Veras Farinatti

    2005-06-01

    Full Text Available OBJETIVO: Observar a influência de quatro meses de um programa domiciliar não-supervisionado de exercícios sobre a pressão arterial (PA e aptidão física em hipertensos. MÉTODOS: Foram observados um grupo experimental com 26 homens e 52 mulheres e um grupo controle, com 9 homens e 7 mulheres, com idades entre 25 e 77 anos. O grupo experimental submeteu-se a um programa domiciliar de exercícios, com atividades aeróbias (60-80% da FC máxima para a idade, 30min de caminhadas no mínimo três vezes por semana, exercícios de flexibilidade. Orientações sobre a ficha de controle e o treinamento eram dadas a cada reavaliação. Foram acompanhados por quatro meses, com reavaliações a cada dois meses, observando-se: PA em repouso; peso corporal, relação cintura-quadril (RCQ, percentual de gordura (%G, somatório de dobras cutâneas (SOMD e relação central e periférica de dobras (P/C; flexibilidade de tronco (FX; relação entre freqüência cardíaca e carga de trabalho durante teste submáximo em ciclo-ergômetro (FC/W, traduzida pela inclinação da curva de regressão entre ambas (a. RESULTADOS: O grupo experimental exibiu alterações significativas para o peso (-3,7 kg, RCQ (-0,03, SOMD (-12 mm, %G (-4,4%, FX (+2,3 cm, FC/W (-0,02 e PA (-6 e -9 mmHg para pressão sistólica e diastólica, respectivamente. O grupo controle teve pequenas alterações no peso (+1,3 Kg e %G (+1,7%. CONCLUSÃO: Programas domiciliares não supervisionados de exercícios, podem exercer efeito positivo sobre a PA e aptidão física de hipertensos.OBJECTIVE: To observe the influence of a four-month-unsupervised-exercise program performed at home on the blood pressure (BP and physical performance in hypertensive adults. METHODS: A target group with 26 men and 52 women, and a control group with 9 men and 7 women were observed, with ages ranging from 25 to 77 years old. The target group underwent a home exercise program, basically with aerobic activity (60

  8. CRECIMIENTO Y DESARROLLO DE LA LIMA ÁCIDA (Citrus latifolia Tanaka, cv. Tahití, EN SUELOS CON LIMITACIONES POR PROFUNDIDAD EFECTIVA, EN UN BOSQUE SECO TROPICAL GROWTH AND DEVELOPMENT OF LIME (Citrus latifolia Tanaka, cv. Tahiti, IN SOILS WITH LIMITATIONS BY EFFECTIVE DEPTH IN A TROPICAL DRY FOREST

    Directory of Open Access Journals (Sweden)

    Gabriel Fernando Ochoa Agudelo

    2012-06-01

    Full Text Available Resumen. Se evaluó la evolución de la biomasa, la distribución diferencial de ésta entre los órganos y algunos parámetros del crecimiento y desarrollo, de la lima ácida (Citrus latifolia Tanaka, cv. Tahití, injertada sobre Carrizo y Kryder. El cultivo se estableció en suelos con limitaciones por profundidad efectiva (PE entre 10 y 20 cm; las evaluaciones se realizaron a los 24, 32 y 39 meses después del trasplante. Se debe tener presente que el crecimiento de las raíces está condicionado a los atributos edáficos en donde se establecen los cultivos, en especial los perennes, en cuyo caso existen requerimientos mínimos de PE para el adecuado desarrollo de los árboles; se establecieron diferencias entre la biomasa acumulada, como consecuencia de ésta limitación. Al comparar el crecimiento de las plantas con la PE se evidenció que los individuos que crecieron en suelos con PE de 20 cm, presentaron un desarrollo relativamente semejante a plantaciones sin limitaciones de este tipo; mientras que, en suelos con PE inferior a 10 cm, la respuesta fue 3 a 5 veces menor.Abstract. It was evaluated the evolution of biomass, its differential distribution among the organs and some parameters of growth and development of acid lime (Citrus latifolia Tanaka, cv. Tahiti, grafted on Carrizo and Kryder patterns. The plants were established in soils with limitations by its effective depth (ED, which ranged between 10 and 20 cm. Assessments were effectuated at 24, 32 and 39 months after transplantation. It is must to keep in mind that root growth is conditioned to the soil attributes of the site where the crops are established, especially in the case of perennials, which have requirements of minimum PE in order to achieve an adequate development. Differences were established between biomass accumulated as a result of the limitation in effective depth. When comparing the growth of plants with ED, we found that the individuals that grew up in soils with

  9. Celiac Artery Compression Syndrome

    Directory of Open Access Journals (Sweden)

    Mohammed Muqeetadnan

    2013-01-01

    Full Text Available Celiac artery compression syndrome is a rare disorder characterized by episodic abdominal pain and weight loss. It is the result of external compression of celiac artery by the median arcuate ligament. We present a case of celiac artery compression syndrome in a 57-year-old male with severe postprandial abdominal pain and 30-pound weight loss. The patient eventually responded well to surgical division of the median arcuate ligament by laparoscopy.

  10. Popliteal artery entrapment syndrome.

    LENUS (Irish Health Repository)

    O'Leary, D P

    2010-01-01

    Popliteal artery entrapment syndrome is a rare abnormality of the anatomical relationship between the popliteal artery and adjacent muscles or fibrous bands in the popliteal fossa. The following is a case report of a 19 year old female, in whom popliteal artery entrapment syndrome was diagnosed, and successfully treated surgically. A review of literature is also presented and provides details on how PAES is classified, diagnosed both clinically and radiologically, and treated surgically.

  11. Coeliac artery compression syndrome

    OpenAIRE

    OKTAY, Özgür; MEMİŞ, Ahmet; Parildar, Mustafa; Oran, İsmail

    2003-01-01

    Celiac artery compression syndrome, also called median arcuate ligament compression syndrome, causes gastrointestinal ischemia secondary to compression of the proximal portion of the celiac artery just beyond its origin by the median arcuate ligament of the diaphragm. This syndrome is frequently demonstrated on aortography performed in patients without complaints of intestinal angina. Isolated stenosis or even occlusion of the celiac artery is always compensated for by collateral circul...

  12. Imaging the vertebral artery

    Energy Technology Data Exchange (ETDEWEB)

    Tay, Keng Yeow; U-King-Im, Jean Marie; Trivedi, Rikin A.; Higgins, Nicholas J.; Cross, Justin J.; Antoun, Nagui M. [Addenbrooke' s Hospital and University of Cambridge, Department of Radiology, Cambridge (United Kingdom); Davies, John R.; Weissberg, Peter L. [Addenbrooke' s Hospital and University of Cambridge, Division of Cardiovascular Medicine, Cambridge (United Kingdom); Gillard, Jonathan H. [Addenbrooke' s Hospital and University of Cambridge, Department of Radiology, Cambridge (United Kingdom); Addenbrooke' s Hospitald, University Department of Radiology, Cambridge (United Kingdom)

    2005-07-01

    Although conventional intraarterial digital subtraction angiography remains the gold standard method for imaging the vertebral artery, noninvasive modalities such as ultrasound, multislice computed tomographic angiography and magnetic resonance angiography are constantly improving and are playing an increasingly important role in diagnosing vertebral artery pathology in clinical practice. This paper reviews the current state of vertebral artery imaging from an evidence-based perspective. Normal anatomy, normal variants and a number of pathological entities such as vertebral atherosclerosis, arterial dissection, arteriovenous fistula, subclavian steal syndrome and vertebrobasilar dolichoectasia are discussed. (orig.)

  13. Peripheral artery disease - legs

    Science.gov (United States)

    ... if they have a history of: Abnormal cholesterol Diabetes Heart disease (coronary artery disease) High blood pressure ( hypertension ) Kidney disease involving hemodialysis Smoking Stroke ( cerebrovascular disease )

  14. Mitos sobre agroecologia.

    OpenAIRE

    Canuto, João Carlos

    2011-01-01

    O presente ensaio vem a discutir alguns aspectos do discurso sobre a Agroecologia, procurando evidenciar contradições do senso comum, advindas seja de parte da comunidade leiga, dos meios de comunicação ou da comunidade científica. Coloca em debate alguns mitos sobre os sistemas agroecológicos, tais como: que sejam tecnologicamente retrógrados, de baixa produtividade, exigentes em mão-de-obra, economicamente inviáveis e “puramente ideológicos”.

  15. Inferencias sobre Grafos

    OpenAIRE

    Sira M. Allende; Carlos N. Bouza

    2002-01-01

    El estudio de un juego puede ser modelado asumiendo que solo algunas partidas son observadas. Entonces el árbol del juego debe ser estimado utilizando información muestral. Similarmente ocurre al obtener información sobre el comportamiento de las decisiones tomadas por individuos muestreados sobre un árbol de decisión teórico. Al considerar una medida de probabilidad que caracterice el comportamiento de redes aleatorias se puede obtener un estimado del árbol asociado. Este problema es el anal...

  16. Las prácticas de enseñanza del profesor universitario, una herramienta efectiva para el éxito pedagógico

    Directory of Open Access Journals (Sweden)

    Jhon Jairo Bejarano-Roncancio

    2013-09-01

    Full Text Available Resumen Este escrito tiene la intención de abordar las prácticas de enseñanza en el contexto de la formación en la educación superior, partiendo de la definición de didáctica como las diversas estrategias que tiene el docente para enseñar, siguiendo una ruta narrativa y argumentativa sobre su fundamentación para luego explorar la dimensión de esta disciplina en el aula y en las formas de enseñanza que desarrollan los maestros en su práctica. Los hallazgos principales dentro de las prácticas de enseñanza permiten valorar referentes como la selección de contenidos, las estrategias de comunicación, los recursos, el desarrollo metodológico y la relación profesor estudiante; esto en términos de saberes, creencias, preconcepciones, desde los cuales el docente estructura y dirige la práctica educativa. En este sentido, la didáctica desempeña un rol primordial, ya que indica las formas para llevar a cabo el proceso de enseñanza. Por otra parte, la configuración didáctica puede realizarse desde un discurso general, pero debe especializarse al interior de cada disciplina. Le corresponde a cada docente convertirse en investigador de sus propias prácticas de enseñanza, no sólo para validarlas o revaluarlas, sino para aportar en la reflexión que converja hacia la construcción del conocimiento.

  17. Bilateral popliteal arterial dissection.

    Science.gov (United States)

    Chen, Po-Liang; Ko, Shih-Yu; Tan, Ken-Hing

    2012-01-01

    A clinical feature of bilateral popliteal arterial dissection without involving the descending aorta, bilateral iliac, as well as femoral arteries has never been reported in the past literature. We report a 56-year-old man with hypertension and coronary artery disease who presented to our emergency department with complaints of bilateral knee pain after long-distance walking. Physical examination was notable for elevated blood pressure, but there was no palpable pulsation over dorsalis pedis arteries on his feet. Laboratory evaluation revealed a d-dimer level of 35.2 mg/L (FEU) on the day of the test and 1.2 mg/L one and a half months ago (normal level, <0.55). These findings were suggestive of a recent-onset peripheral arterial occlusive disorder. Computed tomography of the aorta showed bilateral popliteal arterial dissection with arterial intimal flap. Abdominal aorta, bilateral iliac, and femoral arteries remained intact with only arteriosclerotic change. Minimally invasive endovascular stent grafting was then performed. The patient had an uneventful recovery. PMID:21106320

  18. INCREMENTO TRANSITORIO DE LA PRESION ARTERIAL SISTEMICA EN PACIENTES NORMOTENSOS CON TERAPEUTICA ACUPUNTURAL

    OpenAIRE

    RECAMIER TORRES, BERNARDO DEL SAGRADO CORAZON DE JESUS

    2009-01-01

    INTRODUCCION. LA PRESION ARTERIAL SISTEMICA RESULTADO DE LA INTERACCION DE FACTORES NEUROENDOCRINOS SOBRE EL TONO VASCULAR SISTEMICO Y VOLUMEN SANGUINEO CIRCULANTE, ES MODIFICADA POR LA TERAPEUTICA ACUPUNTURAL A TRAVES DEL INCREMENTO DE NEUROPEPTIDOS COMO ENDORFINAS, Y SUS PRECURSORES, (SITUACION DEMOSTRADA POR LAS EXPERIENCIAS DE POMERANZ). ESTE AUMENTO DE LA ACTIVIDAD EN LA RED CEFALO SUPRARRENAL CONLLEVA A UN INCREMENTO EN LA PRESION ARTERIAL SISTEMICA QUE REQUIERE DE MECANISMOS COMPENSAD...

  19. The application of Reiki in nurses diagnosed with Burnout Syndrome has beneficial effects on concentration of salivary IgA and blood pressure Una sesión de Reiki en enfermeras diagnosticadas con síndrome de Burnout tiene efectos beneficiosos sobre la concentración de IgA salival y la presión arterial Uma sessão de Reiki em enfermeiras diagnosticadas com síndrome de Burnout tem efeitos benéficos sobre a concentração de IgA salivar e a pressão arterial

    Directory of Open Access Journals (Sweden)

    Lourdes Díaz-Rodríguez

    2011-10-01

    Full Text Available This study aimed to investigate the immediate effects of the secretory immunoglobulin A (sIgA, α-amylase activity and blood pressure levels after the application of a Reiki session in nurses with Burnout Syndrome. A randomized, double-blind, placebo-controlled, crossover design was conducted to compare the immediate effects of Reiki versus control intervention (Hand-off sham intervention in nurses with Burnout Syndrome. Sample was composed of eighteen nurses (aged 34-56 years with burnout syndrome. Participants were randomly assigned to receive either a Reiki treatment or a placebo (sham Reiki treatment, according to the established order in two different days. The ANOVA showed a significant interaction time x intervention for diastolic blood pressure (F=4.92, P=0.04 and sIgA concentration (F=4.71, P=0.04. A Reiki session can produce an immediate and statistically significant improvement in sIgA concentration and diastolic blood pressure in nurses with Burnout Syndrome.El objetivo fue investigar los efectos inmediatos en inmunoglobulina A salival (IgAs, actividad de α-amilasa y presión arterial de una aplicación de reiki en enfermeras sufriendo síndrome de Burnout. Se utilizó un ensayo preliminar placebo randomizado con cegamiento doble utilizando un diseño cruzado. Dieciocho enfermeras (edad 34-56 con síndrome de Burnout participaron en el estudio. Las participantes recibieron tratamiento con Reiki o Reiki fingido según el orden establecido por la randomización en dos días distintos. El test de ANOVA mostró un interacción significativa momento intervención para la presión arterial diastólica (F=4.92, P=0.04 a y la concentración de sIgA (F=4.71, P=0.04. Una sesión de Reiki de 30 minutos puede mejorar de manera inmediata la respuesta de IgAs y la presión arterial diastólica en enfermeras con síndrome de Burnout.O objetivo deste estudo foi investigar os efeitos imediatos na imunoglobulina A salivar (IgAs, na atividade de

  20. Coronary Artery Bypass

    Directory of Open Access Journals (Sweden)

    Kadri Ceberut

    2011-01-01

    Full Text Available Ancient schwannoma is a rare variant of neural tumors though rarely seen in the thorax. The combination with coronary artery diseases is also rare. Here we describe a 66 year-old male who had undergone one-stage combined surgery for thoracic ancient schwannomas removal and coronary artery disease. The masses were, respectively, 13 cm in the middle mediastinum and 5 cm in diameter originating from the intercostal nerve. The tumors were successfully removed using sternotomy, and then a coronary artery bypass grafting was performed. Here we discuss this rare tumor in relation to the relevant literature.

  1. Inferencias sobre Grafos

    Directory of Open Access Journals (Sweden)

    Sira M. Allende

    2002-05-01

    Full Text Available El estudio de un juego puede ser modelado asumiendo que solo algunas partidas son observadas. Entonces el árbol del juego debe ser estimado utilizando información muestral. Similarmente ocurre al obtener información sobre el comportamiento de las decisiones tomadas por individuos muestreados sobre un árbol de decisión teórico. Al considerar una medida de probabilidad que caracterice el comportamiento de redes aleatorias se puede obtener un estimado del árbol asociado. Este problema es el analizado en este trabajo. Algunos resultados experimentales obtenidos usando Recocido Simulado ilustran el procedimiento. Su papel en el estudio de modelos económicos y de mercadeo es discutido.

  2. Escrito sobre el cuerpo

    Directory of Open Access Journals (Sweden)

    Antonio Malalana Ureña

    2013-09-01

    Full Text Available El catálogo, en una edición bilingüe español-inglés, es una pequeña guía de la exposición Shirin Neshat. Escrito sobre el cuerpo, muestra que se integra dentro de los actos de PHOTOESPAÑA13, el festival internacional de fotografía y artes visuales. El esquema del libro es sencillo y los textos son extremadamente divulgativos. El primero de ellos, Escrito sobre el cuerpo (pp. 10-15, cuyo autor es Octavio Zaya, comisario de la exposición, resume la trayectoria de esta intelectual, que "interactúa" con la fotografía y los formatos audiovisuales, y nos presenta la argumentación narrativa de los documentos expuestos, contextualizando la obra recopilada.

  3. Estudios sobre Borges

    OpenAIRE

    Facultad de Humanidades y Ciencias de la Educación

    1991-01-01

    Contenidos de la obra: De Barthes a Pierre Menard | José Luis De Diego Pierre Menard, autor del Quijote: De la poligrafía al fraude | Andrea Cucatto Homenaje a Roberto Arlt: La otra cara de la moneda | Fabio Espósito Emma a través del espejo: Una lectura de Emma Zunz | Graciela Beatriz Goldchluk Sobre el concepto de verdad en Borges | Sergio Pastormerlo

  4. Sobre genes y electrones

    OpenAIRE

    Martín Pereda, José Antonio

    1992-01-01

    El autor reflexiona sobre un artículo publicado en una revista, en el que se pronosticaba un declive para los científicos dedicados a la física y la ciencia armamentística, debido al fin de la guerra fría, y un ascenso al poder de los biólogos y de todos aquellos relacionados con las ciencias y las tecnologías de la vida.

  5. Peripheral Arterial Disease

    Science.gov (United States)

    Peripheral arterial disease (PAD) happens when there is a narrowing of the blood vessels outside of your heart. The cause of ... smoking. Other risk factors include older age and diseases like diabetes, high blood cholesterol, high blood pressure, ...

  6. Coronary artery spasm

    Science.gov (United States)

    ... blocker or a long-acting nitrate long-term. Beta-blockers are another type of medicine that is used with other coronary artery problems. However, beta-blockers may make this problem worse. They should be ...

  7. Pulmonary Arterial Hypertension

    Science.gov (United States)

    Pulmonary Arterial Hypertension What Is Pulmonary Hypertension? To understand pulmonary hypertension (PH) it helps to understand how blood ows throughout your body. While the heart is one organ, it ...

  8. Carotid artery disease

    Science.gov (United States)

    ... you have had a stroke or TIA, a nervous system (neurological) exam will show other problems. You may also have the following tests: Blood cholesterol and triglycerides test Blood sugar (glucose) test Ultrasound of the carotid arteries ( carotid ...

  9. Impacto de las instalaciones ganaderas sobre la calidad y seguridad del agua subterránea

    Directory of Open Access Journals (Sweden)

    OP Luzardo

    2014-01-01

    Full Text Available La posibilidad de que las actividades ganaderas supongan una fuente de contaminación para los recursos hídricos ha sido una preocupación desde hace ya mucho tiempo, en particular en términos de contaminación por nutrientes (carga nitrogenada, fosfatos, salinidad, etc…. Pero desde hace varias décadas el incremento exponencial de la ganadería intensiva ha magnificado este problema, ya que ha aumentado el número de animales en reducido espacio y ha diversificado la cantidad de contaminantes potenciales (por ejemplo, antibióticos y otros medicamentos veterinarios. Según los datos disponibles, las prácticas generalmente aceptadas de gestión de residuos ganaderos, aún en las mejores condiciones, no garantizan una protección efectiva de los recursos hídricos. De esta manera se ha demostrado que las fuentes de agua cercanas a las actividades ganaderas resultan frecuentemente contaminadas con nutrientes excesivos (N, P, Cl-, patógenos microbianos, productos farmacéuticos, hormonas, metales pesados, desinfectantes, y otros contaminantes de los clasificados como emergentes. La exposición inadvertida a estos residuos procedentes de las instalaciones ganaderas a través de las aguas de consumo puede tener un impacto real sobre la salud humana y del medio ambiente. Por este motivo este tema constituye un problema de preocupación para las autoridades con responsabilidades en materia de Salud Pública. En esta revisión se identifican los principales riesgos de las operaciones de alimentación de animales confinados (CAFO sobre la salubridad y calidad de las aguas subterráneas y se detallan cuáles son los efectos documentados sobre la salud humana y medioambiental que dichos residuos tienen.

  10. Relecturas de género a teorías clásicas sobre la ciencia, el poder y la política

    Directory of Open Access Journals (Sweden)

    Rebeca Dolores Centeno Orozco

    2014-05-01

    Full Text Available El artículo presenta una revisión de teorías clásicas sobre epistemología, política y economía, que fueron producidas cuatro siglos antes de Cristo y en el período de la Ilustración, y que han sido utilizadas para justificar la desigualdad que experimentan las mujeres en estos campos. El paradigma de género, como teoría crítica, identifica y denuncia el sesgo androcéntrico de las ciencias para explicar cómo se reproducen las desigualdades de género en las estructuras sociales, a fin de contribuir a que a todos los seres humanos se les garantice la igualdad efectiva.

  11. Middle cerebral artery revascularization: anatomical studies and considerations on the anastomosis site Revascularização da artéria cerebral média: estudo anatômico e considerações sobre o local de sutura

    Directory of Open Access Journals (Sweden)

    Murilo S. Meneses

    1997-01-01

    Full Text Available In the surgical management of skull base lesions and vascular diseases such as giant aneurysms, involvement of the internal carotid artery may require the resection or the occlusion of the vessel. The anastomosis of the external carotid artery and the middle cerebral artery with venous graft may be indicated to re-establish the blood flow. To determine the best suture site in the middle cerebral artery, an anatomical study was carried out. Fourteen cerebral hemispheres were analysed after the injection of red latex into the internal carotid artery. The superior and inferior trunk of the main division of the middle cerebral artery have more than 2 mm of diameter. They are superficial allowing an anastomosis using a venous graft. The superior trunk has a disadvantage, it gives rise to branches for the precentral and post-central giri. The anastomosis with the inferior trunk presents lower risk of neurological deficit even though the angular artery originates from it.No tratamento cirúrgico das lesões da base do crânio e patologias vasculares como aneurismas gigantes, a ressecção ou oclusão da artéria carótida interna pode ser necessária. A anastomose das artérias carótida externa e cerebral média com interposição de enxerto venoso pode ser utilizada para restabelecer o fluxo sangüíneo. Para determinar o melhor local de sutura na artéria cerebral média, realizou-se um estudo anatômico. Quatorze hemisférios cerebrais foram analisados depois da injeção de látex vermelho na artéria carótida interna. Os ramos superior e inferior da divisão principal da artéria cerebral média têm mais de 2 mm de diâmetro. Eles são superficiais e permitem uma anastomose utilizando um enxerto venoso. O tronco superior tem a desvantagem de dar origem aos ramos para os giros pré e pós-centrais. A anastomose com o tronca inferior apresenta menor risco de déficit neurológico, apesar da artéria angular ter origem desse vaso.

  12. Apuntes sobre liderazgo

    OpenAIRE

    Contreras, Manuel E.

    2010-01-01

    Este trabajo presenta una breve síntesis de las principales teorías de liderazgo y se centra sobre el enfoque de liderazgo adaptativo de Ronald Heifetz. El documento originalmente fue desarrollado para las sesiones de educación a distancia de INDES. Ha sido revisado para usar en otros ámbitos de capacitación y ha sido utilizado en sesiones presenciales llevadas a cabo por INDES, como por otras entidades en universidades y centros de capacitación de America Latina.

  13. Informe APEI sobre movilidad

    OpenAIRE

    Arroyo Vázquez, Natalia

    2011-01-01

    Este informe incluye una amplia aproximación al concepto de movilidad, desde un punto de vista introductorio, que nunca antes en nuestro ámbito había abarcado todos los aspectos que tienen que ver con él, desde cuestiones técnicas como los dispositivos móviles, sistemas operativos y navegadores, conectividad y estándares —cuya intención es poder comprender todos aquellos aspectos relacionados con la movilidad y que tienen una incidencia directa sobre los contenidos— hasta otras más relacionad...

  14. Sobre el razonamiento judicial

    OpenAIRE

    Asís Roig, Rafael de

    1998-01-01

    El trabajo elabora modelos a través de los cuáles es posible reconstruir la argumentación judicial plasmada en las sentencias y, a la vez, hacer explícitas las reglas que sirven de justificación a sus decisiones, y el marco normativo utilizado como referencia. El estudio analiza tanto los pronunciamientos sobre hechos como los que se refieren a la calificación jurídica, en principio, desde una perspectiva descriptiva. Ahora bien, también se llevan a cabo reflexiones y propuestas que van más a...

  15. Coronary arterial fistulas

    Directory of Open Access Journals (Sweden)

    Qureshi Shakeel A

    2006-12-01

    Full Text Available Abstract A coronary arterial fistula is a connection between one or more of the coronary arteries and a cardiac chamber or great vessel. This is a rare defect and usually occurs in isolation. Its exact incidence is unknown. The majority of these fistulas are congenital in origin although they may occasionally be detected after cardiac surgery. They do not usually cause symptoms or complications in the first two decades, especially when small. After this age, the frequency of both symptoms and complications increases. Complications include 'steal' from the adjacent myocardium, thrombosis and embolism, cardiac failure, atrial fibrillation, rupture, endocarditis/endarteritis and arrhythmias. Thrombosis within the fistula is rare but may cause acute myocardial infarction, paroxysmal atrial fibrillation and ventricular arrhythmias. Spontaneous rupture of the aneurysmal fistula causing haemopericardium has also been reported. The main differential diagnosis is patent arterial duct, although other congenital arteriovenous shunts need to be excluded. Whilst two-dimensional echocardiography helps to differentiate between the different shunts, coronary angiography is the main diagnostic tool for the delineation of the anatomy. Surgery was the traditional method of treatment but nowadays catheter closure is recommended using a variety of closure devices, such as coils, or other devices. With the catheter technique, the results are excellent with infrequent complications. Disease name and synonyms Coronary arterial fistulas Coronary arterial fistulas or malformations

  16. Sobre historia mundial hoy

    Directory of Open Access Journals (Sweden)

    Vera Weiler

    2010-08-01

    Full Text Available Los procesos de globalización son una realidad; su enorme impacto sobre la vida humana los ha convertido en un tema recurrente sobre el que se escribe y se comenta a diario también en Colombia. Los libros que de ellos tratan, ante todo los que 10 hacen en tono crítico, baten records en la industria editorial en todo el mundo. Las expectativas que acerca del futuro abrigan cientos de millones de personas se relacionan con 10 que ellas esperan, para bien o para mal, de la globalización. Las posturas que los gobernantes ocupan al respecto en el mundo son, cuando menos de aceptación, generalmente de activa participación en pos de la globalización. Por un lado, crece la preocupación y se multiplican las protestas; por el otro, dominan los razonamientos de los especialistas en materia de maximización de los rendimientos de los capitales que presentan la globalización, al estilo que se viene imponiendo, como el camino ineludible del gobierno universal de la eficiencia. ¿Tienen que decir algo los historiadores frente a todo esto?.

  17. Anomalous right coronary artery arising from left anterior descending artery

    Directory of Open Access Journals (Sweden)

    M.L. Sreenivas Kumar

    2012-07-01

    Full Text Available A 54-year-old male patient presented with acute myocardial infarction involving left anterior descending and right coronary artery territories. Coronary angiogram showed a single coronary artery with right coronary artery arising from left anterior descending artery (LAD, which coursed anterior to right ventricular outflow tract and thrombotic lesion in mid left anterior descending artery before origin of right coronary artery. The patient was treated with thrombolytic therapy and glycoprotein IIb/IIIa inhibitors. Anomalous origin of right coronary artery as a branch of LAD is a very rare type of congenital coronary artery anomalies. It is important to recognize this anomaly as it can be associated with extensive myocardial ischemia and sudden cardiac death in young persons even without atherosclerosis.

  18. Efeitos da simpaticotomia endoscópica sobre as artérias carótidas e vertebrais na terapêutica cirúrgica da hiperidrose primária Effects of endoscopic sympathicotomy in carotid and vertebral arteries in the surgical treatment of primary hiperhidrosis

    Directory of Open Access Journals (Sweden)

    Jeancarlo F. Cavalcante

    2005-01-01

    Full Text Available OBJETIVOS: Analisar, em pacientes submetidos a simpaticotomia videotoracoscópica para tratamento da Hiperidrose Primária (HP, as conseqüências hemodinâmicas da desnervação vascular das artérias carótidas e vertebrais após a trans-secção cirúrgica da cadeia simpática torácica (simpaticotomia, através da mensuração de parâmetros ultra-sonográficos. MÉTODO: Vinte e quatro pacientes portadores de HP submetidos a quarenta e oito simpaticotomias torácicas endoscópicas foram avaliados através da mensuração da velocidade de pico sistólico (VPS, velocidade de pico diastólico (VPD, índice de pulsatibilidade (IP e índice de resistência (IR nas artérias carótidas comuns, internas e externas, além da artéria vertebral bilateralmente usando o eco-doppler duplex scan. As avaliações foram realizadas antes da intervenção cirúrgica e trinta dias após o procedimento. O teste de Wilcoxon foi usado na análise das diferenças entre as variáveis antes e depois da simpaticotomia. RESULTADOS: A simpaticotomia no nível de T3 foi a trans-secção mais realizada (95,83%, seja isoladamente (25% ou associada a T4 (62,50% ou a T2 (8,33%. Houve aumento significativo no IR e no IP da artéria carótida comum bilateralmente (pPURPOSES: Analyze, in patients with primary hyperhidrosis (PH who was undergone to videothoracoscopic sympathicotomy, the degree of vascular denervation after surgical transection of the thoracic sympathetic chain by measuring ultrasonografic parameters in carotid and vertebral arteries. METHODS: Twenty-four patients with PH underwent forty-eight endoscopic thoracic sympathicotomy and were evaluated by duplex eco-doppler measuring systolic peak velocity (SPV, diastolic peak velocity (DPV, pulsatility index (PI and resistivity index (RI in bilateral common, internal and external carotids, besides bilateral vertebral arteries. The exams were performed before operations and a month later. Wilcoxon test was used to

  19. Left main coronary artery compression in pulmonary arterial hypertension

    DEFF Research Database (Denmark)

    Al-Badri, Kadhem Helo Abbas; Jensen, Jesper Møller; Christiansen, Evald H;

    2015-01-01

    In patients with pulmonary arterial hypertension (PAH), chest pain is most likely due to right ventricular demand ischemia. We report a patient with idiopathic PAH who developed severe angina due to extrinsic compression of the left main coronary artery (LMCA) from a dilated pulmonary artery trunk...

  20. Left Anterior Descending Artery-Pulmonary Artery Fistula

    Directory of Open Access Journals (Sweden)

    Turan Ege

    2011-12-01

    Full Text Available Despite the fact that coronary arteriovenous fistulas constitute approximately half (48% of coronary artery anomalies, they are rarely seen anomalies. In this report,we aim to present a coronary arteriovenous fistula case detected during a coronary angiography between left anterior descending artery and pulmonary artery.

  1. Carotid artery stenting

    International Nuclear Information System (INIS)

    An ipsilateral stenosis of the internal carotid artery is found in 10 - 15 % of all ischemic strokes and indicates an increased risk of a second stroke. Carotid artery stenting (CAS) is a therapy that is established for many years. CAS reveals complication rates and long-term efficacy comparable to carotid endarterectomy (TEA). Especially younger patients seem to benefit from CAS. Abilities and experiences of the therapist and the choice of the techniques used are critical for patient safety. The efficacy of CAS for treatment of asymptomatic carotid stenosis is probable but still unproven in prospective-randomized trial. (orig.)

  2. Carotid artery stenting; Karotisangioplastie

    Energy Technology Data Exchange (ETDEWEB)

    Fiehler, Jens [Universitaetsklinikum Eppendorf, Hamburg (Germany). Klinik und Poliklinik fuer Neuroradiologische Diagnostik und Intervention, Diagnostikzentrum

    2009-09-15

    An ipsilateral stenosis of the internal carotid artery is found in 10 - 15 % of all ischemic strokes and indicates an increased risk of a second stroke. Carotid artery stenting (CAS) is a therapy that is established for many years. CAS reveals complication rates and long-term efficacy comparable to carotid endarterectomy (TEA). Especially younger patients seem to benefit from CAS. Abilities and experiences of the therapist and the choice of the techniques used are critical for patient safety. The efficacy of CAS for treatment of asymptomatic carotid stenosis is probable but still unproven in prospective-randomized trial. (orig.)

  3. About Peripheral Artery Disease (PAD)

    Science.gov (United States)

    ... Tools & Resources Stroke More About Peripheral Artery Disease (PAD) Updated:Mar 23,2016 Peripheral artery disease (PAD) ... critical regions of the body. Quick Facts about PAD View an illustration of PAD The most common ...

  4. Pharmacological modulation of arterial stiffness.

    LENUS (Irish Health Repository)

    Boutouyrie, Pierre

    2011-09-10

    Arterial stiffness has emerged as an important marker of cardiovascular risk in various populations and reflects the cumulative effect of cardiovascular risk factors on large arteries, which in turn is modulated by genetic background. Arterial stiffness is determined by the composition of the arterial wall and the arrangement of these components, and can be studied in humans non-invasively. Age and distending pressure are two major factors influencing large artery stiffness. Change in arterial stiffness with drugs is an important endpoint in clinical trials, although evidence for arterial stiffness as a therapeutic target still needs to be confirmed. Drugs that independently affect arterial stiffness include antihypertensive drugs, mostly blockers of the renin-angiotensin-aldosterone system, hormone replacement therapy and some antidiabetic drugs such as glitazones. While the quest continues for \\'de-stiffening drugs\\

  5. Combination of rare right arterial variation with anomalous origins of the vertebral artery, aberrant subclavian artery and persistent trigeminal artery. A case report.

    Science.gov (United States)

    Ishihara, H; San Millán Ruíz, D; Abdo, G; Asakura, F; Yilmaz, H; Lovblad, K O; Rüfenacht, D A

    2011-09-01

    A 32-year-old woman hospitalized for subarachnoid hemorrhage showed rare arterial variation on the right side with anomalous origins of the vertebral artery, aberrant subclavian artery and persistent trigeminal artery. Angiography showed the right vertebral artery to originate from the right common carotid artery, the right subclavian artery to arise separately from the descending aorta, and persistent trigeminal artery on the right side. The possible embryonic mechanism of this previously unreported variant combination is discussed. PMID:22005696

  6. Liver cirrhosis and arterial hypertension

    DEFF Research Database (Denmark)

    Henriksen, Jens Henrik; Møller, Søren

    2006-01-01

    blood pressure. This review considers the alterations in systemic hemodynamics in patients with cirrhosis in relation to essential hypertension and arterial hypertension of the renal origin. Subjects with arterial hypertension (essential, secondary) may become normotensive during the development of...... cirrhosis, and arterial hypertension is rarely manifested in patients with cirrhosis, even in cases with renovascular disease and high circulating renin activity. There is much dispute as to the understanding of homoeostatic regulation in cirrhotic patients with manifest arterial hypertension. This most...

  7. Voz sobre frame relay

    OpenAIRE

    D´Elia, Gabriel Anibal

    2000-01-01

    Esta tesis trata el tema de VOFR, desde la digitalización de la voz hasta su transmisión a través de dicha red, así también como la comparación con otros medios de transporte como VOIP. Dada las características del protocolo frame relay y su disponibilidad se eligió como el medio más apropiado para la transmisión de voz y datos en forma integrada sobre una misma red. El trabajo comienza con una breve explicación de la voz, su digitalización y forma actual de transmisión a través de una red di...

  8. Excertos sobre o sedentarismo

    Directory of Open Access Journals (Sweden)

    Alexandre Palma

    2014-09-01

    Full Text Available O sedentarismo tem sido tratado como algo perfeitamente determinável, objetivo e, portanto, que pode ser apreendido. Por outro lado, o conceito de sedentarismo ainda permanece questionável e, por conseguinte, os instrumentos mostram-se inconsistentes. Neste sentido, o objetivo do presente estudo foi mostrar que diferentes discursos de verdade vêm concorrendo por esse conceito, o que nos motiva a pensar qual é a verdade ou, até mesmo, se há alguma verdade sobre ele. Após apresentarmos diferentes possibilidades de compreender o sedentarismo, através do uso de aforismos, entendemos que postular um discurso como verdade talvez apenas signifique que as pessoas nele creem e que há uma vontade de verdade como uma vontade voltada para o poder.

  9. Persistent Trigeminal Artery

    Directory of Open Access Journals (Sweden)

    Dijo T George

    2015-04-01

    Full Text Available Trigeminal artery is the commonest of the four primitive anastomoses between the carotid and vertebrobasilar system that may rarely persist in adults, with an angiographic incidence of 0.1 - 0.6%. We present the CT and MR angiograms of a patient who presented with a minor stroke and was detected to have this anomaly and briefly discuss the significance

  10. Comportamento da pressão arterial após exercícios contra-resistência: uma revisão sistemática sobre variáveis determinantes e possíveis mecanismos Comportamiento de la presión arterial después de ejercicios contra resistencia: una revisión sistemática sobre variables determinantes y posibles mecanismos Blood pressure behavior after counter-resistance exercises: a systematic review on determining variables and possible mechanisms

    Directory of Open Access Journals (Sweden)

    Marcos Doederlein Polito

    2006-12-01

    Full Text Available A hipotensão pós-exercício (HPE é um fenômeno com elevada relevância clínica, mas que ainda apresenta aspectos duvidosos em relação às variáveis que podem contribuir para sua manifestação. A dúvida é maior quando o exercício contra-resistência é aplicado com intuito de proporcionar HPE. Nesse sentido, o objetivo deste estudo foi rever algumas variáveis do exercício contra-resistência que podem estar associadas à HPE. Além disso, foram comentados alguns mecanismos fisiológicos possivelmente relacionados com esse efeito. Encontraram-se 14 referências abrangendo o exercício contra-resistência e a HPE. Seis estudos observaram efeito hipotensivo para a pressão arterial sistólica (PAS e/ou diastólica (PAD após o exercício contra-resistência. Contudo, foi observado que alguns estudos não identificaram diferenças significativas (p > 0,05 para PAS e PAD (n = 4 ou até relataram aumento significativo (p La hipertensión después del ejercicio (HPE es un fenómeno con elevada relevancia clínica, pero aún si presenta aspectos dudosos en relación a las variables que pueden contribuir para su manifestación. La duda es mayor cuando el ejercicio contra resistencia es aplicado con el intuito de proporcionar HPE. En ese sentido, el objetivo de este estudio ha sido el de rever algunas variables del ejercicio contra resistencia que pueden estar asociadas a la HPE. Además de esto, fueron comentados algunos mecanismos fisiológicos, posiblemente relacionados con ese efecto. Se encontró 14 referencias abarcando el ejercicio contra resistencia y la HPE. Seis estudios observaron el efecto hipotensivo para la presión arterial sistólica (PAS y/o diastólica (PAD después del ejercicio contra resistencia. A pesar de eso, se observó que algunos estudios no identificaron diferencias significativas (p > 0,05 para PAS y PAD (n = 4 o hasta reportaron aumento significativo (p Post-exercise hypotension (PEH is a phenomenon with high

  11. Basilar Artery Aneurysm at a Persistent Trigeminal Artery Junction

    Science.gov (United States)

    Aguiar, G.B.; Conti, M.L.M.; Veiga, J.C.E.; Jory, M.; Souza, R.B.

    2011-01-01

    Summary The trigeminal artery is an anastomosis between the embryonic precursors of the vertebrobasilar and carotid systems, and may persist into adult life. The association of the persistent primitive trigeminal artery (PTA) with cerebral aneurysm is well documented in the literature and, in general, aneurysms are located in the anterior circulation. We describe a patient who presented with a panencephalic Fisher III subarachnoid hemorrhage due to rupture of an intracranial aneurysm. Digital arteriography showed a saccular aneurysm in the middle third of the basilar artery, adjacent to the junction with a persistent trigeminal artery. She was submitted to endovascular treatment with embolization of the basilar artery aneurysm with coils. Aneurysms at the PTA junction with the basilar artery are rare. This paper describes a case of PTA associated with an aneurysm in the basilar artery at PTA junction and briefly reviews the literature. PMID:22005697

  12. Representações sociais de mulheres portadoras de hipertensão arterial sobre sua enfermidade: desatando os nós da lacuna da adesão ao tratamento na agenda da Saúde da Família Social representation of women with hypertension in relation to the disease: unraveling the adherence to the treatment in relation to the schedule of the Family Health

    Directory of Open Access Journals (Sweden)

    Amanda Gomes Ribeiro

    2011-01-01

    Full Text Available A falta de adesão ao tratamento e a consequente falta de controle da hipertensão arterial (HA representam um grande desafio à Atenção Primária no Brasil. Compreender a relação subjetiva dos portadores de HA com a enfermidade pode ampliar as possibilidades de medidas de controle da HA mais efetivas. O objetivo deste trabalho foi conhecer e analisar as representações sociais de mulheres portadoras de HA sobre a doença e seu convívio familiar. Fizeram parte do estudo 26 mulheres diagnosticadas com HA e cadastradas em uma Unidade de Atenção Primária à Saúde do município de Porto Firme, MG. O estudo fundamentou-se na pesquisa qualitativa e elegeu as representações sociais como princípio teórico-metodológico. Os dados, obtidos por meio de grupos focais, entrevistas individuais e anotações em diário de campo, foram examinados através da análise de conteúdo. Nas análises emergiram os atrativos semânticos que retratavam as representações das mulheres sobre HA - efeitos psicológicos/sentimentos ligados ao diagnóstico da HA; o cotidiano do portador de HA e as mudanças em seu dia a dia;e o convívio familiar com HA - por meio das quais se identificaram diferentes dimensões e espaços ligados à adesão, no âmbito individual e coletivo, destacando-se o acesso à informação associado ao suporte social como fator favorável à adesão ao tratamento.The lack of compliance with treatment and the consequent lack of control of hypertension represent a major challenge to primary care in Brazil. Understanding the subjective relationship of patients with hypertension can expand the possibilities of more effective control measures. The aim was to understand and analyze the social representations of women with hypertension about the disease and their family environment. Study participants were 26 women diagnosed with hypertension and registered in a Unit of Primary Health Care in the city of Porto Firme, Brazil. The study was

  13. Efeitos agudos das frações hexânicas de alho (Allium sativum L.), de capim-limão [Cymbopogom citratus (DC) Stapf] e de suas associações sobre a pressão arterial de ratos anestesiados

    OpenAIRE

    Singi, Glenan; Damasceno, Dênis Derly; Dias D Andréa, Éverton; Santos, Marcelo Henrique dos; Silva, Gerardo Alves da

    2006-01-01

    Este trabalho objetivou verificar os efeitos anti-hipertensivos da aplicação intravenosa aguda das frações hexânicas do Allium sativum e do Cymbopogon citratus, bem como verificar se as respostas eram incrementadas pela associação das duas plantas. Foram usados ratos adultos machos, n=7. Os ratos foram anestesiados, traqueostomizados e realizada canulação da jugular e carótida. As doses injetadas foram de 1 mg, separadamente e em associação (1 mg + 1 mg), no volume de 0,2 ml. A pressão arteri...

  14. Sobre el nombre "Quechua"

    Directory of Open Access Journals (Sweden)

    Rodolfo Cerrón-Palomino

    1985-06-01

    Full Text Available Uno de los primeros problemas con el que a menudo tropiezael estudioso de los idiomas ágrafos, como es el caso de las lenguasaborígenes de América, es el de su denominación (glotónimo.En la medida ,en que, por razones históricas, las noticias sobretales lenguas, y por consiguiente los primeros estudios sobre lasmismas, surgen a partir del contacto con los miembros de la civilización occidental, los nombres de los distintos idiomas, así comode los grupos étnicos que los manejan, son el resultado casi siempre arbitrario cie designaciones fortuitas hechas por viajeros, misiioneros y exploradores, quienes por lo general se basan, para ello, bien en descripciones físicas de los grupo étnicos, en ciertos indios geográficos que constituyen el habitat de los mismos, e incluso en prejuicios que se nutren de un marcado europocentrismo.

  15. Refletindo sobre idosos institucionalizado

    Directory of Open Access Journals (Sweden)

    Cenir Gonçalves Tier

    2004-06-01

    Full Text Available Trata-se de uma pesquisa qualitativa, descritiva que teve por objetivo identificar como vem sendo o relacionamento idoso-família, identificando os motivos que levaram os familiares a optarem pela institucionalização do seu idoso, obtendo-se também a visão da família sobre o cuidado no lar. Para coleta dos dados utilizou-se um instrumento com perguntas abertas. A coleta dos dados efetivou-se nos meses de agosto de 2002 a julho de 2003, sendo sujeitos da pesquisa, familiares de idosos de uma instituição asilar em um município da região noroeste do Rio Grande do Sul. Através da análise de conteúdo constatou-se que a maior dificuldade encontrada pela família, visando dispensar cuidados ao idoso é a "falta de tempo para cuidar" do seu familiar idoso, pois a maioria deles exige cuidados em tempo integral.

  16. Popliteal artery entrapment syndrome.

    Science.gov (United States)

    Klooster, N J; Kitslaar, P; Janevski, B K

    1988-06-01

    Two patients with unilateral popliteal artery entrapment syndrome (PAES) are reported. The importance of diligence in angiographic diagnosis and recognition of the so-called "functional" PAES group as a separate entity are stressed. It is inferred from our material that a surgical approach for PAES is to be advocated since surgical release of the entrapment can lead to complete resolution of symptoms regardless of aetiology. PMID:2837797

  17. Popliteal artery entrapment syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Klooster, N.J.J.; Janevski, B.K.; Kitslaar, P.

    1988-06-01

    Two patients with unilateral popliteal artery entrapment syndrome (PAES) are reported. The importance of diligence in angiographic diagnosis and recognition of the so-called 'functional' PAES group as a separate entity are stressed. It is inferred from our material that a surgical approach for PAES is to be advocated since surgical release of the entrapment can lead to complete resolution of symptoms regardless of aetiology.

  18. Popliteal artery entrapment syndrome

    International Nuclear Information System (INIS)

    Two patients with unilateral popliteal artery entrapment syndrome (PAES) are reported. The importance of diligence in angiographic diagnosis and recognition of the so-called 'functional' PAES group as a separate entity are stressed. It is inferred from our material that a surgical approach for PAES is to be advocated since surgical release of the entrapment can lead to complete resolution of symptoms regardless of aetiology. (orig.)

  19. Gestational pulmonary arterial hypertension

    OpenAIRE

    Moll, Matthew; Payne, Julie G.; Tukey, Melissa H.; Farber, Harrison W.

    2015-01-01

    Pulmonary arterial hypertension (PAH) is a progressive disease marked by the irreversible pulmonary vascular changes of vasoconstriction, thrombosis, and proliferation of smooth muscle and endothelial cells. The untreated clinical course is characterized by progressive dyspnea and a median survival of less than 3 years. Many of these patients are of child-bearing age; however, pregnancy leads to physiologic changes that are particularly poorly tolerated in PAH, conferring a 30%–56% mortality....

  20. Idiopathic pulmonary arterial hypertension

    OpenAIRE

    Firth, Amy L.; Mandel, Jess; Yuan, Jason X.-J.

    2010-01-01

    Despite improved understanding of the pathobiology of pulmonary arterial hypertension (PAH), it remains a severe and progressive disease, usually culminating in right heart failure, significant morbidity and early mortality. Over the last decade, some major advances have led to substantial improvements in the management of PAH. Much of this progress was pioneered by work in animal models. Although none of the current animal models of pulmonary hypertension (PH) completely recapitulate the hum...

  1. Myocardial arterial spin labeling

    OpenAIRE

    Kober, Frank; Jao, Terrence; Troalen, Thomas; Nayak, Krishna S.

    2016-01-01

    Arterial spin labeling (ASL) is a cardiovascular magnetic resonance (CMR) technique for mapping regional myocardial blood flow. It does not require any contrast agents, is compatible with stress testing, and can be performed repeatedly or even continuously. ASL-CMR has been performed with great success in small-animals, but sensitivity to date has been poor in large animals and humans and remains an active area of research. This review paper summarizes the development of ASL-CMR techniques, c...

  2. Pulmonary arterial hypertension.

    OpenAIRE

    Montani, David; Günther, Sven; Dorfmüller, Peter; Perros, Frédéric; Girerd, Barbara; Garcia, Gilles; Jaïs, Xavier; Savale, Laurent; Artaud-Macari, Elise; Price, Laura; Humbert, Marc; Simonneau, Gérald; Sitbon, Olivier

    2013-01-01

    Pulmonary arterial hypertension (PAH) is a chronic and progressive disease leading to right heart failure and ultimately death if untreated. The first classification of PH was proposed in 1973. In 2008, the fourth World Symposium on PH held in Dana Point (California, USA) revised previous classifications. Currently, PH is devided into five subgroups. Group 1 includes patients suffering from idiopathic or familial PAH with or without germline mutations. Patients with a diagnosis of PAH should ...

  3. Robotic coronary artery bypass for aberrant right coronary artery stenosis.

    Science.gov (United States)

    Chen, Kuan-chin Jean; Teefy, Patrick; Kiaii, Bob; Vezina, William C; Chu, Michael Wa

    2010-10-01

    Anomalous coronary arteries that course between the aorta and pulmonary artery are subject to compressive forces and can manifest angina, myocardial infarction and sudden death. The current report presents a young, female patient who presented with a short duration of severe, rapidly progressive angina despite optimal medical therapy. Combined computed tomography and myocardial perfusion scanning identified an anomalous dominant right coronary artery that appeared kinked at its origin between the aorta and main pulmonary artery. A robot-assisted right internal thoracic artery to right coronary artery bypass was performed, which was confirmed to be widely patent (FitzGibbon grade A) on routine intraoperative angiography. The procedure completely resolved the patient's angina symptoms. PMID:20931103

  4. Arterial responses during migraine headache

    DEFF Research Database (Denmark)

    Iversen, Helle Klingenberg; Nielsen, T H; Olesen, J;

    1990-01-01

    The superficial temporal artery has been thought to be the main focus of pain during migraine attacks, but its diameter has never been measured directly. The use of a new, high-resolution ultrasound machine to measure arterial size in 25 migraine patients with unilateral head pain showed that the...... lumen was wider on the painful than on the non-painful side during a migraine attack. The diameters of both radial arteries and the temporal artery on the non-painful side were smaller during than between attacks. The generalised vasoconstriction was not shared by the temporal artery on the affected...... side, which suggests a local vasodilatory response. The findings suggest that cephalic arteries may play a role in migraine pathogenesis....

  5. True aneurysm of brachial artery.

    Science.gov (United States)

    Hudorović, Narcis; Lovričević, Ivo; Franjić, Dario Bjorn; Brkić, Petar; Tomas, Davor

    2010-10-01

    True upper extremity peripheral artery aneurysms are a rarely encountered arterial disorder. Following computer-tomography angiographic (CT-a) imaging examination, true saccular aneurysm, originating from the left brachial artery was diagnosed in the 77-year-old female without history of trauma. The aneurysm was resected by surgical intervention, and primary repair of the brachial artery was performed by interposition of a part of great saphenous vein harvested from the left groin and creation of two end-to-end anastomoses between interposition graft and previously resected part of brachial artery. No complication was observed during the follow-up. Surgical intervention for upper extremity aneurysms should be initiated without delay. Factors combined with minimal morbidity associated with repair suggest that surgical repair should be performed routinely for true upper extremity arterial aneurysms. PMID:20865459

  6. DOS HIPÓTESIS SOBRE EL EFECTO QUE TIENE EN LA FORMA DE EXPLOTACIÓN AGROPECUARIA APLICAR SUBSIDIOS A SISTEMAS DE RIEGO. EL CASO DEL ALTO CHICAMOCHA (BOYACÁ, COLOMBIA

    Directory of Open Access Journals (Sweden)

    Bernardo Congote Ochoa

    2014-01-01

    Full Text Available El artículo somete a prueba dos hipótesis: la que expone conceptos tradicionales del tipo congelar la dinámica campo-ciudad o conservar al campesino en el campo explotando áreas mínimas y la modernista, que utiliza conceptos económicos del tipo tiempo de trabajo socialmente necesario, costos sociales, demanda efectiva y movilidad de factores. El artículo falsea de manera preliminar la hipótesis tradicional y valida la modernista, tanto teórica como empíricamente sobre un caso observado en la zona del Alto Chicamocha, (Boyacá con datos capturados entre 1999 y 2010. Formula al final algunas conclusiones y recomendaciones.

  7. Cobertura efectiva de las intervenciones en salud de América Latina y el Caribe: métrica para evaluar los sistemas de salud Effective coverage of health interventions in Latin America and the Caribbean: metrics for the assessment of health systems performance

    Directory of Open Access Journals (Sweden)

    Sandra Martínez

    2011-01-01

    Full Text Available OBJETIVO: Medir la cobertura efectiva para once intervenciones de salud en nueve países de América Latina utilizando las encuestas de demografía y salud o registros administrativos que abarcan la salud infantil, de la mujer y el adulto. MATERIAL Y MÉTODOS: Se seleccionaron las intervenciones y se armonizaron definiciones y métodos de cálculo de acuerdo con la información disponible para lograr la comparabilidad entre países. RESULTADOS: Chile es el país con mejores indicadores de coberturas crudas y efectivas, seguido por México y Colombia, y existen brechas importantes entre regiones, departamentos o estados. CONCLUSIONES: La métrica de cobertura efectiva es un indicador sensible que relaciona la necesidad de las intervenciones en salud, su utilización y calidad, lo que permite valorar los programas de salud al aportar datos precisos de dónde y a quién deben dirigirse los recursos y esfuerzos nacionales para que los países alcancen los propósitos y metas planteados.OBJECTIVE: To measure effective coverage for ll health interventions in Latin America including the children's, women's and adult health, as part of program evaluation. MATERIAL AND METHODS: Interventions were selected; the definitions and calculation methods were harmonized according to the information available to ensure comparability between countries. RESULTS: Chile has better indicators of crude and effective coverage followed by Mexico and Colombia.There are significant gaps between regions, counties or states. CONCLUSIONS: The health metric on effective coverage is a sensitive indicator that links three important aspects: Coverage of health interventions, use of health services, and access to such services. Effective coverage is a good tool to evaluate health programs performance, and also provides data of where and to whom the system should address national efforts and resources to achieve the purposes and goals set.

  8. Triple spontaneous cervical artery dissection

    International Nuclear Information System (INIS)

    A 39-year-old healthy man had several transient ischaemic attacks suggesting left internal carotid artery (ICA) occlusion. There were no vascular risk factors and no preceding trauma. Colour-coded duplex sonography suggested a pseudo-occlusion of the left ICA, and cerebral angiography demonstrated dissection of the left ICA and both vertebral arteries. Angiography 6 months later was completely normal. This underlines the importance of four vessel angiography in young patients with dissections of cervical arteries. (orig.)

  9. The right hepatic artery syndrome

    Institute of Scientific and Technical Information of China (English)

    Kazumi Miyashita; Katsuya Shiraki; Takeshi Ito; Hiroki Taoka; Takeshi Nakano

    2005-01-01

    Various benign and malignant conditions could cause biliary obstruction. Compression of extrahepatic bile duct (EBD) by right hepatic artery was reported as a right hepatic artery syndrome but all cases were compressed EBD from stomach side. Our case compressed from dorsum was not yet reported, so it was thought to be a very rare case. We present here the first case of bile duct obstruction due to the compression of EBD from dorsum by right hepatic artery.

  10. Cobertura efectiva de las intervenciones en salud de América Latina y el Caribe: métrica para evaluar los sistemas de salud Effective coverage of health interventions in Latin America and the Caribbean: metrics for the assessment of health systems performance

    OpenAIRE

    Héctor Gómez-Dantés; Victoria Castro; Héctor Arreola-Ornelas; Paula Bedregal; Cecilia Vidal; Sandra Martínez; Ramiro Guerrero; Gabriel Carrasquilla; Gerardo Solano; Marlén Roselló; Ronald Evans; Jaqueline Peraza; Edgar Kestler; Rafael Lozano; Oscar Méndez

    2011-01-01

    OBJETIVO: Medir la cobertura efectiva para once intervenciones de salud en nueve países de América Latina utilizando las encuestas de demografía y salud o registros administrativos que abarcan la salud infantil, de la mujer y el adulto. MATERIAL Y MÉTODOS: Se seleccionaron las intervenciones y se armonizaron definiciones y métodos de cálculo de acuerdo con la información disponible para lograr la comparabilidad entre países. RESULTADOS: Chile es el país con mejores indicadores de coberturas c...

  11. Arterial mapping of lower limbs

    International Nuclear Information System (INIS)

    A bibliographic review is realized in the arterial mapping of lower limbs by ultrasonographic. The physical properties of the Doppler effect applied to diagnostic ultrasound are described. The anatomical characteristics of the general arterial system and specifically of the lower limbs arterial system are mentioned. Pathologies of the ischemic arterial disease of lower limbs are explained. The study characteristics of lower limbs arterial mapping are documented to determine its importance as appropriate method for the assessment of lower limb ischemia. An adequate arterial mapping of lower limbs is recognized in atherosclerotic ischemic disease as a reliable initial method alternative to arteriography. Arteriography is considered as reference pattern for therapeutic decision making in patients with critical ischemia of the lower limbs. Non-invasive methods to assess the arterial system of lower limbs has evidenced the advantages of the arterial mapping with Doppler, according to the consulted literature. The combination morphological and hemodynamic information has been possible and a map of the explored zone is made. The arterial mapping by ultrasonography has offered similar reliability to angiography

  12. [The single coronary artery].

    Science.gov (United States)

    Godart, F; Berzin, B; Rihani, R; Pecheux, M; Dutoit, A

    1992-04-01

    Single coronary artery is a fairly rare entity which may nevertheless be found in 0.4 per cent of coronary arteriograms. The authors report 3 cases seen in 2 departments of cardiology. In each patient, despite the existence of definite cardiovascular risk factors, this distribution was a factor worsening coronary ischemia, leading to complete thrombosis in one case. Although most often a chance discovery, a review of the literature justifies the attribution to this anomaly of the onset of angina, infarction or even sudden death. PMID:1642437

  13. Patent arterial duct

    OpenAIRE

    Martin Robin P; Elmasry Ola A; Forsey Jonathan T

    2009-01-01

    Abstract Patent arterial duct (PAD) is a congenital heart abnormality defined as persistent patency in term infants older than three months. Isolated PAD is found in around 1 in 2000 full term infants. A higher prevalence is found in preterm infants, especially those with low birth weight. The female to male ratio is 2:1. Most patients are asymptomatic when the duct is small. With a moderate-to-large duct, a characteristic continuous heart murmur (loudest in the left upper chest or infraclavi...

  14. Parent Artery Occlusion for Posterior Cerebral Artery Aneurysms

    OpenAIRE

    Hoya, K.; Nagaishi, M.; Yoshimoto, Y.; Morikawa, E.; H. Takahashi(NASA Goddard Space Flight Center, Greenbelt, USA)

    2006-01-01

    We review four cases of posterior cerebral artery (PCA) aneurysm, of which three showed intolerance of parent artery occlusion. In two, balloon test occlusion (BTO) indicated poor opaci- fication of the PCA branches from the anastomoses, and therefore, permanent occlusion was not attempted.

  15. Association between internal carotid artery dissection and arterial tortuosity

    Energy Technology Data Exchange (ETDEWEB)

    Saba, Luca; Piga, Mario [Azienda Ospedaliero Universitaria (A.O.U.), Department of Radiology, Monserrato, Cagliari (Italy); Argiolas, Giovanni Maria; Siotto, Paolo [Azienda Ospedaliero Brotzu (A.O.B.), Department of Radiology, di Cagliari (Italy); Sumer, Suna; Wintermark, Max [Neuroradiology Division, Neuroradiology, UVA Department of Radiology, Charlottesville, VA (United States); Raz, Eytan [New York University School of Medicine, Department of Radiology, New York, NY (United States); Sapienza University of Rome, Department of Neurology and Psychiatry, Rome (Italy); Sanfilippo, Roberto; Montisci, Roberto [Azienda Ospedaliero Universitaria (A.O.U.), Department of Vascular Surgery, di Cagliari (Italy)

    2014-10-18

    Carotid artery dissection is an important cause of ischemic stroke in all age groups, particularly in young patients. The purpose of this work was to assess whether there is an association between the presence of an internal carotid artery dissection (ICAD) and the arterial tortuosity. This study considered 124 patients (72 males and 52 females; median age 57 years) with CT/MR diagnosis of ICAD of the internal carotid artery were considered in this multi-centric retrospective study. The arterial tortuosity was evaluated and, when present, was categorized as elongation, kinking, or coiling. For each patient, both the right and left sides were considered for a total number of 248 arteries in order to have the same number of cases and controls. Fisher's exact test was applied to test the association between elongation, kinking, coiling, dissection, and the side affected by CAD. Fisher's exact test showed a statistically significant association between the ICAD and kinking (p = 0.0089) and coiling (p = 0.0251) whereas no statistically significant difference was found with arterial vessel elongation (p = 0.444). ICAD was more often seen on the left side compared to the right (p = 0.0001). These results were confirmed using both carotid arteries of the same patient as dependent parameter with p = 0.0012, 0.0129, and 0.3323 for kinking, coiling, and elongation, respectively. The presence of kinking and coiling is associated with ICAD. (orig.)

  16. Dual anterior descending coronary artery associated with coronary artery disease

    Directory of Open Access Journals (Sweden)

    Siqueira Luciane da L. V.

    2003-01-01

    Full Text Available The patient is a male with risk factors for coronary artery disease, who was referred for cardiac catheterization after acute myocardial infarction in the inferior wall. The patient underwent transluminal coronary angioplasty in the right coronary artery with successful stent implantation.

  17. Bilateral Internal Thoracic Artery Configuration for Coronary Artery Bypass Surgery

    Science.gov (United States)

    Boodhwani, Munir; Hanet, Claude; de Kerchove, Laurent; Navarra, Emiliano; Astarci, Parla; Noirhomme, Philippe; El Khoury, Gebrine

    2016-01-01

    Background— Bilateral internal thoracic arteries (BITA) have demonstrated superior patency and improved survival in patients undergoing coronary artery bypass grafting. However, the optimal configuration for BITA utilization and its effect on long-term outcome remains uncertain. Methods and Results— We randomly assigned 304 patients undergoing coronary artery bypass grafting using BITA to either in situ or Y grafting configurations. The primary end point was 3-year angiographic patency. Secondary end points included major adverse cardiac and cerebrovascular events (ie, death from any cause, stroke, myocardial infarction, or repeat revascularization) at 7 years. More coronary targets were able to be revascularized using internal thoracic arteries in patients randomized to Y grafting versus in situ group (3.2±0.8 versus 2.4±0.5 arteries/patient; PURL: http://www.clinicaltrials.gov. Unique identifier: NCT01666366. PMID:27406988

  18. Genetics Home Reference: pulmonary arterial hypertension

    Science.gov (United States)

    ... Home Health Conditions pulmonary arterial hypertension pulmonary arterial hypertension Enable Javascript to view the expand/collapse boxes. ... All Open All Close All Description Pulmonary arterial hypertension is a progressive disorder characterized by abnormally high ...

  19. Pulmonary arterial hypertension : an update

    NARCIS (Netherlands)

    Hoendermis, E. S.

    2011-01-01

    Pulmonary arterial hypertension (PAH), defined as group 1 of the World Heart Organisation (WHO) classification of pulmonary hypertension, is an uncommon disorder of the pulmonary vascular system. It is characterised by an increased pulmonary artery pressure, increased pulmonary vascular resistance a

  20. Liver cirrhosis and arterial hypertension

    DEFF Research Database (Denmark)

    Henriksen, Jens Henrik; Møller, Søren

    2006-01-01

    blood pressure. This review considers the alterations in systemic hemodynamics in patients with cirrhosis in relation to essential hypertension and arterial hypertension of the renal origin. Subjects with arterial hypertension (essential, secondary) may become normotensive during the development of...... cirrhosis, and arterial hypertension is rarely manifested in patients with cirrhosis, even in cases with renovascular disease and high circulating renin activity. There is much dispute as to the understanding of homoeostatic regulation in cirrhotic patients with manifest arterial hypertension. This most......Characteristic findings in patients with cirrhosis are vasodilatation with low overall systemic vascular resistance, high arterial compliance, increased cardiac output, secondary activation of counter-regulatory systems (renin-angiotensin-aldosterone system, sympathetic nervous system, release of...

  1. Sequential bilateral retinal artery occlusion

    Directory of Open Access Journals (Sweden)

    Padrón-Pérez N

    2014-04-01

    Full Text Available Noel Padrón-Pérez,1 Janny Rosario Aronés,2 Silvia Muñoz,1 Luis Arias-Barquet,1 Jorge Arruga1,31Department of Ophthalmology, Hospital Universitari de Bellvitge, 2Hospital de l'Esperança – Parc de Salut Mar, 3Institut Català de Retina, Barcelona, SpainAbstract: An 86 year old woman experienced a sequential bilateral loss of vision over a period of less than 24 hours. Clinical findings and complementary studies suggested a bilateral atherogenic embolic event. Initially, she presented a superior branch retinal artery occlusion in her right eye followed by a central retinal artery occlusion with cilioretinal artery sparing in her left eye. Some conservative maneuvers performed did not improve visual acuity in the left eye. Supra-aortic Doppler ultrasonography revealed mild right internal carotid artery stenosis and moderate left internal carotid artery stenosis with a small, smooth, and homogeneous plaque. The transthoracic echocardiography showed a severe calcification of the mitral valve with a mild-moderate rim of stenosis. Central retinal artery occlusion and branch retinal artery occlusion are characterized by painless monocular loss of vision. Clinical approach and management attempt to treat the acute event, find the source of the vascular occlusion, and prevent further vascular events from occurring. Giant cell arteritis is a potentially treatable cause of central retinal artery occlusion and should be excluded in every single patient over 50 years old.Keywords: loss of vision, branch retinal artery occlusion, central retinal artery occlusion, Hollenhorst plaque

  2. Patent arterial duct

    Directory of Open Access Journals (Sweden)

    Martin Robin P

    2009-07-01

    Full Text Available Abstract Patent arterial duct (PAD is a congenital heart abnormality defined as persistent patency in term infants older than three months. Isolated PAD is found in around 1 in 2000 full term infants. A higher prevalence is found in preterm infants, especially those with low birth weight. The female to male ratio is 2:1. Most patients are asymptomatic when the duct is small. With a moderate-to-large duct, a characteristic continuous heart murmur (loudest in the left upper chest or infraclavicular area is typical. The precordium may be hyperactive and peripheral pulses are bounding with a wide pulse pressure. Tachycardia, exertional dyspnoea, laboured breathing, fatigue or poor growth are common. Large shunts may lead to failure to thrive, recurrent infection of the upper respiratory tract and congestive heart failure. In the majority of cases of PAD there is no identifiable cause. Persistence of the duct is associated with chromosomal aberrations, asphyxia at birth, birth at high altitude and congenital rubella. Occasional cases are associated with specific genetic defects (trisomy 21 and 18, and the Rubinstein-Taybi and CHARGE syndromes. Familial occurrence of PAD is uncommon and the usual mechanism of inheritance is considered to be polygenic with a recurrence risk of 3%. Rare families with isolated PAD have been described in which the mode of inheritance appears to be dominant or recessive. Familial incidence of PAD has also been linked to Char syndrome, familial thoracic aortic aneurysm/dissection associated with patent arterial duct, and familial patent arterial duct and bicuspid aortic valve associated with hand abnormalities. Diagnosis is based on clinical examination and confirmed with transthoracic echocardiography. Assessment of ductal blood flow can be made using colour flow mapping and pulsed wave Doppler. Antenatal diagnosis is not possible, as PAD is a normal structure during antenatal life. Conditions with signs and symptoms of

  3. Lizonia baldini sobre Polytrichum formosum

    OpenAIRE

    Girbal i Lladó, Josep; Lloret Maya, Francisco; Pérez Obiol, Ramon

    1982-01-01

    S'ha trobat al Montseny (UTM:DG 46 26) l'ascomicet briofil Lizonia baldini (Pir) Dobb (Ordre Dothideales) parasit sobre Polytrichum formosum Hedw. Es descriuen les característiques dels exemplars observats i s'indica la seva incidencia en la producció d'anteridis

  4. Visiones educativas sobre los MOOC

    OpenAIRE

    Cabero Almenara, Julio

    2015-01-01

    Los “Cursos Masivos en Abiertos” o MOOC se están convirtiendo en una de las tecnologías de gran penetración en el terreno educativo en los últimos tiempos, considerándose por algunos como una tecnología que creará un tsunami sobre la educación

  5. Discurso sobre la historia colombiana

    OpenAIRE

    Quijano Otero, José María

    2010-01-01

    Resumen de las lecciones de Historia Patria, desde la llegada de Colón hasta los primeros brotes independentistas. Sobre la manera de estudiar los hechos históricos: su enlace, las causas que los produjeron, i los efectos que de ellos derivaron.

  6. A case of primitive persistent hypoglossal artery

    Energy Technology Data Exchange (ETDEWEB)

    Park, C. K.; Koh, B. H.; Kim, Y. S.; Kang, S. R. [Hangyang University College of Medicine, Seoul (Korea, Republic of)

    1979-06-15

    Three kinds of carotid-basilar anastomosis have been found, they were named as persistent primitive trigeminal artery, persistent primitive acoustic (or otic) artery and persistent primitive hypoglossal artery, among them, the persistent primitive hypoglossal artery is by far the least common type of the internal carotid-basilar anastomosis which have been demonstrate in human postembryonic stages. Persistent primitive by hypoglossal artery is usually found incidentally. This vascular anomaly, however,have been reported to be associated with multiple congenital anomalies, such as unilateral or bilateral vertebral artery hypoplasia, absence of the posterior communicating artery, hypoplasia of the proximal portion of the posterior cerebral artery, aneurysm of the circle of Willis, the origin of both pericallosal arteries from a single anterior cerebral artery, retarded mental development dating from infancy, carotid-cavernous fistula formation etc. A case of persistent primitive hypoglossal artery in an young Korean male was reported with brief review of the literature.

  7. Spontaneous Coronary Artery Dissection.

    Science.gov (United States)

    Tweet, Marysia S; Gulati, Rajiv; Hayes, Sharonne N

    2016-07-01

    Spontaneous coronary artery dissection is an important etiology of nonatherosclerotic acute coronary syndrome, myocardial infarction, and sudden death. Innovations in the catheterization laboratory including optical coherence tomography and intravascular ultrasound have enhanced the ability to visualize intimal disruption and intramural hematoma associated with SCAD. Formerly considered "rare," these technological advances and heightened awareness suggest that SCAD is more prevalent than prior estimates. SCAD is associated with female sex, young age, extreme emotional stress, or extreme exertion, pregnancy, and fibromuscular dysplasia. The clinical characteristics and management strategies of SCAD patients are different than for atherosclerotic heart disease and deserve specific consideration. This review will highlight recent discoveries about SCAD as well as describe current efforts to elucidate remaining gaps in knowledge. PMID:27216840

  8. Coronary artery disease (CAD)

    International Nuclear Information System (INIS)

    The detection of myocardial ischemia is the most relevant indication of myocardial perfusion scintigraphy. P. Marie exposes the sensibility and specificity of the method, based on an analysis of literature. Myocardial perfusion scintigraphy gives prognostical informations: among them, should be highlighted the excellent prognosis of a normal perfusion scintigraphy even in patients with significant coronary stenosis and the poor prognosis of extensive perfusion defects at stress. P. Rigo details echocardiographic techniques and nuclear medicine techniques to assess patients with coronary artery disease. He analyses the pathophysiological principles and clinical indications of these techniques. Then, he exposes a quantification analysis software based on bull'eyes representation. M. Slama points out the complementarity of coronary angiography and myocardial perfusion scintigraphy. (authors)

  9. Peripheral artery atherectomy

    International Nuclear Information System (INIS)

    Twenty-one femoropopliteal percutaneous transluminal atherectomies were performed with the Simpson catheter. Evaluation included clinical examination, Doppler ultrasonography (ankle-arm index, before and immediately and 1,3 and 6 months after atherectomy), and angiography (6 months after or for clinical worsening). Twenty of 21 procedures achieved satisfactory vessel patency, with the addition of complementary angioplasty for residual stenosis over 30% (one of three cases). Early thrombosis occurred in only one of 21 cases (absence of platelet inhibitor pretherapy), and no distal embolization occurred. Six-month follow-up showed stable improvements in 11 of 12 patients and restenosis in only one (absence of platelet inhibitor pretherapy). Preliminary results indicate that atherectomy is the method of choice for restoring large lumens, with minimal arterial wall injury and fewer cases of restenosis than with angioplasty

  10. Anomalous Origin of Right Coronary Artery from Distal Left Circumflex Artery: A Very Rare Variant of Single Coronary Artery Anomaly

    OpenAIRE

    Arash Gholoobi

    2016-01-01

    Among coronary anomalies, Single Coronary Artery (SCA) is a rare anomaly in which one coronary artery stems from a single coronary ostium from the aortic sinuses, nourishing the entire heart. A very rare subtype of this anomaly is the anomalous origin of the Right Coronary Artery (RCA) from the distal Left Circumflex (LCx) artery.

  11. Cerebellar arteries originating from the internal carotid artery: angiographic evaluation and embryologic explanations

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jae Young; Han, Moon Hee; Yu, In Gyu; Chang, Ki Hyun [Seoul National Univ. College of Medicine, Seoul (Korea, Republic of); Kim, Eui Jong [Kyunghee Univ. College of Medicine, Seoul (Korea, Republic of); Kim, Dae Ho [Soonchunhyang Univ. College of Medicine, Asan(Korea, Republic of)

    1997-06-01

    To find and describe the cerebellar arteries arising from the internal carotid artery, explain them embryologically, and evaluate their clinical implication. To determine the point in the internal carotid artery from which the cereballar artery arose anomalously, consecutive angiographic studies performed in the last three years were reviewed. The distribution of such anomalous cerebellar arteries, the point in the internal carotid artery from which the anomalous vessels originated, and associated findings were analyzed. Five anomalous origins of cerebellar arteries arising arising directly from the internal carotid artery were found in five patients. Three anterior inferior cerebellar arteries (AICA) and one common trunk of an AICA and a posterior inferior cerebellar artery (PICA) were found to originate from the internal carotid artery at a point close to the origin of the primitive trigeminal artery. A PICA arose from an artery presenting a course similar to the proatlantal intersegmental artery. Intracranial aneurysms in two patients, Moyamoya disease in one, and facial arteriovenous malformation in one. In our series, AICAs supplied from the arteries considered to be persistent trigeminal artery variants were the most common type. A correlation between type of anomalous cerebellar artery and type of carotid-vertebrobasilar anastomosis may exist. Cerebellar arteries originating anomalously from the internal carotid artery seem to occur as a result of the persistence of carotid-vertebrobasilar anastomoses associated with incomplete fusion of the longitudinal neural arteries. An understanding of these anomalous cerebellar arteries may help prevent accidents during therapeutic embolization and surgical treatment, as well as misinterpretation.

  12. STUDY OF MEDIAL CIRCUMFLEX ARTERY

    Directory of Open Access Journals (Sweden)

    Pavan P Havaldar

    2014-06-01

    Full Text Available Background: The proper knowledge of the course and ramification of blood vessels of lower limbs is very important for surgeons and interventional radiologist. Medial circumflex femoral artery usually originates from posteromedial aspect of the profunda femoris, but often originates from femoral artery itself. It has an important role in supplying blood to femoral neck and head, fatty tissue in acetabular fossa and used in flaps reconstructive surgery. Methods: 50 adult lowerlimbs were procured from embalmed cadavers of J.J.M. Medical College and S.S.I.M.S & R.C, Davangere, Karnataka, India for the study. Dissection of femoral triangle was carried out according to Cunningham’s manual. Site and mode of origin of the branches of femoral artery were studied, configuration of the femoral origins of medial and lateral circumflex femoral artery and their prevalence were studied. Results: Out of 50 extremities, Medial circumflex femoral artery took origin from profunda femoris in 41 specimens and from femoral artery in 9 specimens. Conclusion: The knowledge of normal origin and variation of medial circumflex femoral artery is very valuable in preventing iatrogenic injury to these vessels during surgical procedures of femoral triangle.

  13. Access to the ophthalmic artery by retrograde approach through the posterior communicating artery for intra-arterial chemotherapy of retinoblastoma

    Energy Technology Data Exchange (ETDEWEB)

    Pham, Chi-Tuan; Blanc, Raphael; Pistocchi, Silvia; Bartolini, Bruno; Piotin, Michel [Fondation Rothschild Hospital, Department of Interventional Neuroradiology, Paris (France); Lumbroso-Le Rouic, Livia [Institut Curie, Department of Ocular Oncology, Paris (France)

    2012-08-15

    Intra-arterial infusion of chemotherapy into the ophthalmic artery for treatment of retinoblastoma has been realized after catheterization of the internal carotid and temporary balloon occlusion beyond the orifice of the ophthalmic artery, or more recently after superselective canulation of the ophthalmic artery by a microcatheter. The superselective catheterization of the ophthalmic artery could be cumbersome because of the implantation of the ostium on the carotid siphon or because of the tortuosity of the carotid siphon. We report our experience of using a retrograde approach through the posterior communicating artery that allows a more direct angle of access to the origin of the ophthalmic artery. (orig.)

  14. Access to the ophthalmic artery by retrograde approach through the posterior communicating artery for intra-arterial chemotherapy of retinoblastoma

    International Nuclear Information System (INIS)

    Intra-arterial infusion of chemotherapy into the ophthalmic artery for treatment of retinoblastoma has been realized after catheterization of the internal carotid and temporary balloon occlusion beyond the orifice of the ophthalmic artery, or more recently after superselective canulation of the ophthalmic artery by a microcatheter. The superselective catheterization of the ophthalmic artery could be cumbersome because of the implantation of the ostium on the carotid siphon or because of the tortuosity of the carotid siphon. We report our experience of using a retrograde approach through the posterior communicating artery that allows a more direct angle of access to the origin of the ophthalmic artery. (orig.)

  15. Peripheral arterial stenosis and coronary artery disease coincidence

    Directory of Open Access Journals (Sweden)

    Reza Ghasemi

    2014-12-01

    Full Text Available Atherosclerosis is a chronic slow-developing condition affecting medium-size and large blood vessels. It is the principal underlying pathology of coronary heart disease and stroke. In some countries, coronary artery disease (CAD is the cause of nearly half (48% of the deaths and, loss of productivity life. Peripheral arterial disease (PAD is defined as atherosclerosis in peripheral arteries instead of coronary arteries. CAD and PAD have same risk factors and underlying pathophysiological processes. Therefore, patient with CAD should be considered for PAD. Ankle brachial index (ABI, duplex sonography, and some other non-invasive techniques are recommended for PAD diagnosis in patients with the history of CAD. Pharmacotherapy, endovascular interventions, and surgical management could be chosen according to the patient’s situation. Cardiologists and general practitioners should consider PAD in a patient with CAD or DM as a strong correlated disease.      

  16. Local Intra-Arterial Fibrinolysis in Acute Basilar Artery Occlusion

    OpenAIRE

    Enomoto, Y.; Yoshimura, S.; Kitajima, H.; Tamakawa, N.; Iwama, T

    2007-01-01

    Acute basilar artery (BA) occlusion is typically associated with poor outcome; however newer diagnostic and treatment modalities have the potential to improve prognosis. In this study, six patients with acute BA occlusion were followed and the effectiveness of local intra-arterial fibrinolysis (LIF) and subsequent percutaneous transluminal angioplasty (PTA) with a balloon catheter were assessed. Of the six patients with BA occlusion observed in this study, two had extended brain stem infarcti...

  17. Peripheral artery disease in patients with coronary artery disease.

    Science.gov (United States)

    Atmer, B; Jogestrand, T; Laska, J; Lund, F

    1995-03-01

    The prevalence of peripheral vascular disease in patients with coronary artery disease has been investigated in many different ways and depends on the diagnostic methods and the definition of the atherosclerotic manifestations in the different vascular beds. In this study we used the non-invasive methods digital volume pulse plethysmography and ankle and toe blood pressure measurements to identify arterial abnormalities in the lower limbs in 58 patients (49 males and 9 females; age 37-72 years) examined with coronary angiography. The prevalence of peripheral artery disease was 22%, in agreement with the results of most previous investigations. There was a tendency towards increasing prevalence of peripheral artery disease with more advanced coronary artery disease: 14% of the patients with no or minimal coronary atheromotous lesions, 18% of the patients with moderate coronary atheromotous lesions and 32% of the patients with marked coronary atheromotous disease. For this reason a non-invasive investigation of the peripheral arterial circulation should be included early in the clinical consideration of patients with chest pain or similar symptoms suggesting coronary heart disease. Toe pressure measurement appears to be the most appropriate technique being rather simple in management and also in evaluation of results. PMID:7658111

  18. Aberrant ovarian artery arising from the common Iliac artery: Case report

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Won Kyung [Dept. of Radiology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon (Korea, Republic of); Yang, Seung Boo; Lee, Jae Myeong [Dept. of Radiology, Soonchunhyang University Gumi Hospital, Soonchunhyang University College of Medicine, Gumi (Korea, Republic of); Goo, Dong Erk; Kim, Yong Jae; Chang, Yun Woo [Dept. of Radiology, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul (Korea, Republic of)

    2013-01-15

    A 46-year-old Vietnamese woman received embolization therapy in order to control postpartum hemorrhage. Angiography revealed an aberrant ovarian artery arising from the right common iliac artery. Superselective catheterization and subsequent embolization of the aberrant ovarian artery and bilateral uterine arteries were performed. Precise knowledge of the anatomic variations of the ovarian artery is important for successful embolization.

  19. Pulmonary arterial hypertension.

    Science.gov (United States)

    Montani, David; Günther, Sven; Dorfmüller, Peter; Perros, Frédéric; Girerd, Barbara; Garcia, Gilles; Jaïs, Xavier; Savale, Laurent; Artaud-Macari, Elise; Price, Laura C; Humbert, Marc; Simonneau, Gérald; Sitbon, Olivier

    2013-01-01

    Pulmonary arterial hypertension (PAH) is a chronic and progressive disease leading to right heart failure and ultimately death if untreated. The first classification of PH was proposed in 1973. In 2008, the fourth World Symposium on PH held in Dana Point (California, USA) revised previous classifications. Currently, PH is devided into five subgroups. Group 1 includes patients suffering from idiopathic or familial PAH with or without germline mutations. Patients with a diagnosis of PAH should systematically been screened regarding to underlying mutations of BMPR2 gene (bone morphogenetic protein receptor type 2) or more rarely of ACVRL1 (activine receptor-like kinase type 1), ENG (endogline) or Smad8 genes. Pulmonary veno occusive disease and pulmonary capillary hemagiomatosis are individualized and designated as clinical group 1'. Group 2 'Pulmonary hypertension due to left heart diseases' is divided into three sub-groups: systolic dysfonction, diastolic dysfonction and valvular dysfonction. Group 3 'Pulmonary hypertension due to respiratory diseases' includes a heterogenous subgroup of respiratory diseases like PH due to pulmonary fibrosis, COPD, lung emphysema or interstitial lung disease for exemple. Group 4 includes chronic thromboembolic pulmonary hypertension without any distinction of proximal or distal forms. Group 5 regroup PH patients with unclear multifactorial mechanisms. Invasive hemodynamic assessment with right heart catheterization is requested to confirm the definite diagnosis of PH showing a resting mean pulmonary artery pressure (mPAP) of ≥ 25 mmHg and a normal pulmonary capillary wedge pressure (PCWP) of ≤ 15 mmHg. The assessment of PCWP may allow the distinction between pre-capillary and post-capillary PH (PCWP > 15 mmHg). Echocardiography is an important tool in the management of patients with underlying suspicion of PH. The European Society of Cardiology and the European Respiratory Society (ESC-ERS) guidelines specify its role

  20. Revascularisation of atherosclerotic mesenteric arteries

    DEFF Research Database (Denmark)

    Christensen, Max Greve; Lorentzen, Jørgen Ewald; Schroeder, T V

    1994-01-01

    25 patients, chronic ischaemia in 53 and prophylactic reconstruction in connection with aortic surgery in 12 patients. The superior mesenteric artery (SMA) was revascularised in 87 patients and the coeliac axis or common hepatic artery in six. Thus, only three patients had both territories......OBJECTIVES: Visceral artery surgery is well known to vascular surgeons, but most have limited personal experience. We report our experience with 90 patients treated for atherosclerotic lesions of the visceral arteries during a 25-year period 1968-1993. DESIGN: Retrospective study. SETTING...... revascularised. Thromboendarterectomy was performed in 15 patients, transposition of the SMA directly into the infrarenal aorta in 30 and bypass in 48 patients. CHIEF OUTCOME MEASURES: Cumulative symptom-free and survival rates. MAIN RESULTS: The overall perioperative (30 days) mortality rate was 13%, mainly...

  1. Irradiation injury to large arteries

    International Nuclear Information System (INIS)

    Four cases of irradiation injury to large arteries following radiotherapy treatment are presented and the literature is reviewed. Three patterns of injury have emerged: 1) intimal damage resulting in mural thrombosis presenting within 5 years of irradiation, 2) fibrotic occlusion presenting within 10 years of injury, and 3) a predisposition to the development of atheroma together with periarterial fibrosis associated with a latent interval of 20 or more years. The treatment of choice is a bypass procedure of the arterial lesion. (author)

  2. Biomarkers of Peripheral Arterial Disease

    OpenAIRE

    Cooke, John P.; Wilson, Andrew M.

    2010-01-01

    Atherosclerotic arterial occlusive disease affecting the lower extremities is also known as peripheral arterial disease (PAD). This disorder affects 8 to 12 million individuals in the United States, and is also increasingly prevalent in Europe and Asia (1–4). Unfortunately, most patients are not diagnosed and are not optimally treated. A blood test for PAD, if sufficiently sensitive and specific, would be expected to improve recognition and treatment of these individuals. Even a biomarker pan...

  3. Pulmonary arterial hypertension: an update

    OpenAIRE

    Hoendermis, E.S.

    2011-01-01

    Pulmonary arterial hypertension (PAH), defined as group 1 of the World Heart Organisation (WHO) classification of pulmonary hypertension, is an uncommon disorder of the pulmonary vascular system. It is characterised by an increased pulmonary artery pressure, increased pulmonary vascular resistance and specific histological changes. It is a progressive disease finally resulting in right heart failure and premature death. Typical symptoms are dyspnoea at exercise, chest pain and syncope; furthe...

  4. Arterial Pressure Monitoring in Mice

    OpenAIRE

    Zhao, Xin; Ho, David; Gao, Shumin; Hong, Chull; Vatner, Dorothy E.; Vatner, Stephen F.

    2011-01-01

    The use of mice for the evaluation and study of cardiovascular pathophysiology is growing rapidly, primarily due to the relative ease for developing genetically engineered mouse models. Arterial pressure monitoring is central to the evaluation of the phenotypic changes associated with cardiovascular pathology and interventions in these transgenic and knockout models. There are four major techniques for measuring arterial pressure in the mouse: tail cuff system, implanted fluid filled catheter...

  5. Liver cirrhosis and arterial hypertension

    Institute of Scientific and Technical Information of China (English)

    Jens H Henriksen; Soren Moller

    2006-01-01

    Characteristic findings in patients with cirrhosis are vasodilatation with low overall systemic vascular resistance, high arterial compliance, increased cardiac output, secondary activation of counter-regulatory systems (renin-angiotensin-aldosterone system,sympathetic nervous system, release of vasopressin),and resistance to vasopressors. The vasodilatory state is mediated through adrenomedullin, calcitonin generelated peptide, nitric oxide, and other vasodilators,and is most pronounced in the splanchnic area.This constitutes an effective (although relative)counterbalance to increased arterial blood pressure.This review considers the alterations in systemic hemodynamics in patients with cirrhosis in relation to essential hypertension and arterial hypertension of the renal origin. Subjects with arterial hypertension (essential, secondary) may become normotensive during the development of cirrhosis, and arterial hypertension is rarely manifested in patients with cirrhosis, even in cases with renovascular disease and high circulating renin activity. There is much dispute as to the understanding of homoeostatic regulation in cirrhotic patients with manifest arterial hypertension. This most likely includes the combination of vasodilatation and vasoconstriction in parallel.

  6. Arterial function of carotid and brachial arteries in postmenopausal vegetarians

    Directory of Open Access Journals (Sweden)

    Jeng JS

    2011-08-01

    Full Text Available Ta-Chen Su1, Pao-Ling Torng2, Jiann-Shing Jeng3, Ming-Fong Chen1, Chiau-Suong Liau1,41Division of Cardiology, Department of Internal Medicine, 2Department of Obstetrics and Gynecology, 3Department of Neurology, National Taiwan University Hospital, National Taiwan University College of Medicine, 4Cardiovascular Center, Taipei Buddist Tzu-Chi Hospital, Hsin-Dian, Taipei, TaiwanBackground: Vegetarianism is associated with a lower risk of cardiovascular disease. However, studies of arterial function in vegetarians are limited.Methods: This study investigated arterial function in vegetarianism by comparing 49 healthy postmenopausal vegetarians with 41 age-matched omnivores. The arterial function of the common carotid artery was assessed by carotid duplex, while the pulse dynamics method was used to measure brachial artery distensibility (BAD, compliance (BAC, and resistance (BAR. Fasting blood levels of glucose, lipids, lipoprotein (a, high-sensitivity C-reactive protein, homocysteine, and vitamin B12 were also measured.Results: Vegetarians had significantly lower serum cholesterol, high-density and low-density lipoprotein, and glucose compared with omnivores. They also had lower vitamin B12 but higher homocysteine levels. Serum levels of lipoprotein (a and high-sensitivity C-reactive protein were no different between the two groups. There were no significant differences in carotid beta stiffness index, BAC, and BAD between the two groups even after adjustment for associated covariates. However, BAR was significantly lower in vegetarians than in omnivores. Multiple linear regression analysis revealed that age and pulse pressure were two important determinants of carotid beta stiffness index and BAD. Vegetarianism is not associated with better arterial elasticity.Conclusion: Apparently healthy postmenopausal vegetarians are not significantly better in terms of carotid beta stiffness index, BAC, and BAD, but have significantly decreased BAR than

  7. Internal carotid-cerebellar artery anastomosis. So-called persistent trigeminal artery variant

    Energy Technology Data Exchange (ETDEWEB)

    Tanohata, Kazunori; Maehara, Tadayuki; Noda, Masanobu; Katoh, Hiromi

    1987-09-01

    Five cases of internal carotid-cerebellar artery anastomosis are presented. These anomalous vessels are identical to the so-called persistent trigeminal artery variant (PTAV). In our cases, two superior cerebellar arteries (SCAs), two anterior inferior cerebellar arteries (AICAs) and one posterior inferior cerebellar artery (PICA) arose from the precavernous segment of the internal carotid artery. We discuss the embryolgical and neuroradiological aspects of this anomaly.

  8. Deep circumflex iliac artery as a free arterial graft for myocardial revascularization.

    Science.gov (United States)

    Yaginuma, G; Sakurai, M; Meguro, T; Ota, K; Abe, K

    2000-02-01

    When complete revascularization cannot be obtained with the internal thoracic artery and the other arterial grafts, the deep circumflex iliac artery (DCIA) may be an excellent alternative conduit. The deep circumflex iliac artery was used as a free graft for direct myocardial revascularization in 4 patients from January to July 1999. We describe our experience with this arterial conduit, review the anatomy of the artery, and present our harvesting technique. PMID:10735725

  9. Livergraftvascularvariantwith 3 extra-hepatic arteries

    Institute of Scientific and Technical Information of China (English)

    Paulo N Martins

    2010-01-01

     Vascular anatomy of the liver is varied, and the"standard"anatomy is seen in 55%-80%of cases. It is very important that extrahepatic arteries are identiifed precisely at the time of graft procurement to avoid injuries that might compromise the liver function. In the present case the liver donor had the vascular anatomy of Michels type Ⅶ, e.g. a hepatic artery originating from the celiac trunk and going to the left lobe, an accessory left hepatic artery coming from the left gastric artery, and a replaced right hepatic artery coming from the superior mesenteric artery. This pattern of vascular supply is uncommon, representing less than 5%of cases. The replaced hepatic artery was reconstructed in the back-table with polypropylene suture 7.0 by connecting it to the stump of the splenic artery, and the celiac trunk of the graft was anastomosed to the recipient common hepatic artery.

  10. Presence of a median cubital arterial arch associated with high origin of radial artery

    Directory of Open Access Journals (Sweden)

    Shetty SD

    2010-09-01

    Full Text Available Occurrence of a median cubital arterial arch is very rare. We saw a superficially placed median cubital arterial arch associated with high level of origin of radial artery. The radial artery took origin from the brachial artery in the upper third of the arm and crossed median nerve and ulnar artery from medial to lateral side. The course and distribution of the vessels in the forearm was normal. In the cubital fossa, the radial and ulnar arteries were connected to each other by an arterial arch. The variations reported here are very useful for the radiologists as these variations can cause problems in invasive procedures.

  11. Treinamento resistido controla a pressão arterial de ratos hipertensos induzidos por l-NAME Resistance training controls arterial blood pressure in rats with L-NAME- induced hypertension

    OpenAIRE

    Ayslan Jorge Santos de Araujo; Anne Carolline Veríssimo dos Santos; Karine dos Santos Souza; Marlúcia Bastos Aires; Valter Joviniano Santana-Filho; Emerson Ticona Fioretto; Marcelo Mendonça Mota; Márcio Roberto Viana Santos

    2013-01-01

    FUNDAMENTO: A hipertensão arterial é uma síndrome multifatorial, crônica, causada tanto por fatores congênitos ou adquiridos. OBJETIVO: Avaliar os efeitos do treinamento físico resistido (TR) sobre pressão arterial, reatividade e morfologia vascular de ratos hipertensos induzidos por L-NAME. MÉTODOS: Ratos Wistar machos (200-250 g) foram divididos em 3 grupos: normotenso sedentário (NS), hipertenso sedentário (HS) e hipertenso treinado (HT). A hipertensão foi induzida pela administração de L-...

  12. Efecto del uso de alcohol en gel sobre las infecciones nosocomiales por Klebsiella pneumoniae multirresistente

    Directory of Open Access Journals (Sweden)

    J. Bermejo

    2003-12-01

    Full Text Available El lavado de manos es la medida de control más efectiva para interrumpir la transmisión de microorganismos patógenos nosocomiales. Sin embargo, la adherencia por parte del personal de salud es baja. Una nueva modalidad para la higiene de las manos, el frotado con alcohol-gel (AG, permite reducir el tiempo requerido y ofrece mayor comodidad. Con la finalidad de evaluar el efecto de la introducción del AG sobre las tasas de infecciones debidas a los tres agentes nosocomiales multirresistentes (Staphylococcus aureus, Klebsiella pneumoniae y Pseudomonas aeruginosa más frecuentes en nuestro hospital, se realizó un estudio observacional, comparando la incidencia de infecciones en los 12 meses previos y posteriores a la intervención. Luego de la introducción del AG se redujo de manera significativa la incidencia de infecciones debidas a Klebsiella pneumoniae BLEE (RR: 0.38, especialmente las bacteriemias (RR:0.10. El uso de AG ofrece condiciones que probablemente mejoren la adherencia del personal a la higiene de manos. Sin embargo, sobre la base de este estudio, no podemos concluir que el resultado observado se deba al AG en sí mismo o a una mayor adherencia a la práctica higiénica.Handwashing is considered the most important and effective infection control measure to prevent transmission of nosocomial pathogens. However, compliance with handwashing by health care workers is low. A new modality for hand hygiene is alcohol gel rub, which reduces time required, does not damage the skin and increases health care workers compliance. An observational study was conducted to assess the effect of alcohol-gel hand antiseptic on infection rates due to the 3 more frequent multi-resistant bacteria (Staphylococcus aureus, Klebsiella pneumoniae y Pseudomonas aeruginosa in our hospital. Two periods were compared, 12 months before and 12 months after starting alcohol gel use. The second period (AG use showed a significant reduction on incidence rates of

  13. Treinamento resistido controla a pressão arterial de ratos hipertensos induzidos por l-NAME

    OpenAIRE

    Ayslan Jorge Santos de Araujo; Anne Carolline Veríssimo dos Santos; Karine dos Santos Souza; Marlúcia Bastos Aires; Valter Joviniano Santana-Filho; Emerson Ticona Fioretto; Marcelo Mendonça Mota; Márcio Roberto Viana Santos

    2013-01-01

    FUNDAMENTO: A hipertensão arterial é uma síndrome multifatorial, crônica, causada tanto por fatores congênitos ou adquiridos. OBJETIVO: Avaliar os efeitos do treinamento físico resistido (TR) sobre pressão arterial, reatividade e morfologia vascular de ratos hipertensos induzidos por L-NAME. MÉTODOS: Ratos Wistar machos (200-250 g) foram divididos em 3 grupos: normotenso sedentário (NS), hipertenso sedentário (HS) e hipertenso treinado (HT). A hipertensão foi induzida pela administração de L-...

  14. Conocimientos que tienen los alumnos de enfermería de la hipertensión arterial.

    OpenAIRE

    Rojas Alcántara, Purificación; Campos Aranda, Matilde; Campoy Moreno, J.; González Guardiola, Mª.D.; Hernández Mendoza, E.; González Quijano, A.; Muñoz Pérez, G.

    2005-01-01

    Los conocimientos que sobre la hipertensión arterial pueden tener las enfermeras en el desarrollo de su actividad profesional tienen una gran importancia, dada su responsabilidad en este campo, tanto en la prevención de los factores de riesgo, realizando educación sanitaria, como en el control de la presión arterial y en los cuidados, cuando se producen complicaciones. En este trabajo pretendemos profundizar en los conocimientos de los alumnos de enfermería, como futur...

  15. Intra-arterial thrombolysis in basilar artery occlusions combination of intra-arterial thrombolytics and Gp IIb/IIIa inhibitors in basilar artery thrombosis

    Directory of Open Access Journals (Sweden)

    Gaikwad S

    2009-01-01

    Full Text Available Basilar artery thrombosis has high morbidity and mortality. Though intra-arterial thrombolytics have proven efficacy in the treatment of acute basilar artery occlusion, the elevation of procoagulant factors in the blood after intra-arterial thrombolysis could result in subsequent thrombus formation and clinical deterioration. Glycoprotein IIb/IIIa inhibitors have been shown to reduce this elevation in procoagulants. We present a pilot study of three cases of acute basilar artery occlusion treated with a combination of intra-arterial thrombolytics and Gp IIb/IIIa inhibitor with remarkable clinical recovery seen in all the patients.

  16. Historicismo: notas sobre um paradigma

    OpenAIRE

    José D’Assunção Barros

    2012-01-01

    Este artigo tem por objetivo desenvolver algumas considerações sobre o Historicismo e sua possibilidade de ser examinado como um dos paradigmas que concorrem para o estabelecimento de uma história científica no século XIX. O primeiro ponto tratado é relativo às origens do paradigma Historicista na transição do século XVIII para o século XIX. Na sequência, aproximamo-nos da apropriação conservadora do paradigma historicista no novo contexto no qual a burguesia européia está assentada no Poder,...

  17. COMENTARIOS SOBRE MEMORIA Y COMUNIDAD

    OpenAIRE

    José A. Escalona Delfino

    2009-01-01

    El presente trabajo es una reflexión sobre aspectos esenciales en torno a la relación memoria-comunidad y su importancia para la investigación científica de las sociedades y los grupos humanos. Sin penetrar en profundidad en la trayectoria histórica del tema, ni en el tratamiento específico que importantes hombres de ciencia, considerados sus progenitores o procreadores, han dado a estos conceptos, hacemos particulares consideraciones con respecto al concepto de Memoria Histórica o Colectiva....

  18. Nota sobre Keynes y Brentano

    OpenAIRE

    Crespo, Ricardo F.; IAE (Universidad Austral) y CONICET

    2013-01-01

    Este trabajo explora la posibilidad de una relación entre el pensamiento de John Maynard Keynes y el del filósofo alemán Franz Brentano (1839-1917) en los campos lógico y epistemológico. George E. Moore -profesor de Keynes- y Keynes mismo leyeron y alabaron el libro de Brentano El origen del conocimiento moral (1889). ¿Tomó Keynes algunas ideas lógicas o epistemológicas de Brentano? El trabajo sugiere que, a pesar de ciertas similitudes entre las ideas lógicas y sobre la verdad de Keynes y Br...

  19. Thomas Hobbes: sobre el miedo

    OpenAIRE

    Carlos Bührle

    2004-01-01

    Este trabajo pretende echar cierta luz sobre el papel del miedo en el pensamiento político de Hobbes. Sabido es que esta pasión subyace al contrato social, en el sentido de que impulsa al hombre a abandonar el estado de naturaleza a fin de encontrar seguridad y de deshacerse de la amenaza de la muerte violenta. Teniendo en cuenta que el miedo y la muerte son inseparables en la filosofía de Hobbes, surge una pregunta fundamental: ¿hasta qué punto podemos decir que el miedo desaparece completam...

  20. Sobre la crisis financiera internacional

    OpenAIRE

    Antonio Torrero Mañas

    2013-01-01

    Este trabajo es una reflexión sobre la crisis financiera internacional en la mitad de su sexto año. Respecto a la evolución de la crisis tengo una sensación agridulce. La parte positiva es que se ha evitado un descalabro inmediato de gran entidad. Mi mayor inquietud procede de los desequilibrios que pueden provocar las finanzas internacionales sin que exista ninguna institución moderadora y ordenadora de los flujos con un ámbito supranacional. Creo que una fuente válida de inspiración serí...

  1. Lumbalgias en hockey sobre cesped

    OpenAIRE

    Rodríguez, Claudia

    2011-01-01

    Se realizó un estudio tomando como muestra a 84 jugadoras de hockey sobre hierba amateurs, mayores de 18 años de la primera categoría de la ciudad de Mar del Plata, en la cual el objetivo general fue determinar la incidencia del gesto deportivo en las lumbalgias de dichas jugadoras. El dolor lumbar tiene una alta prevalencia entre los deportistas, se ha relacionado con déficits en la fuerza extensora lumbar, y el hecho de padecerlo representa un obstáculo importante para la ...

  2. Modelos ambientales sobre la vejez

    OpenAIRE

    Izal, María; Fernández-Ballesteros, Rocío

    1990-01-01

    La perspectiva ambiental en el estudio de la vejez es probablemente un ámbito poco conocido. En este trabajo se expone una revisión crítica de los principales modelos de explicación de las relaciones ambiente-conducta en la vejez. Finalmente, se discute sobre la superación de algunas limitaciones presentes en estas formulaciones teóricas, presentándose posibles alternativas teóricas y metodológicas para el desarrollo de esta área.

  3. Entorno colaborativo sobre laboratorios remotos

    OpenAIRE

    Grosclaude, Eduardo; Sznek, Jorge Eduardo; Ramos Garcia, Vicente; Bertogna, Mario Leandro; López Luro, Francisco; Zanellato, Claudio

    2006-01-01

    El proyecto de investigación Software para Procesos Colaborativos incluye una línea de acción sobre el desarrollo de experiencias en Laboratorios Remotos. Esta línea está dedicada a complementar las tareas de aprendizaje con un soporte tecnológico de sistemas, entendido como todas aquellas actividades de infraestructura que promuevan la disponibilidad de recursos y apoyen la escalabilidad de procesos en la tarea educativa apuntalada por tecnologías de información. En este trabajo se describe ...

  4. Persistent trigeminal artery arising from the arterial ring/fenestration of the cavernous segment of the internal carotid artery.

    Science.gov (United States)

    Uchino, Akira; Saito, Naoko; Kurita, Hiroki; Ishihara, Shoichiro

    2012-09-01

    A persistent trigeminal artery (PTA) is the most common carotid-vertebrobasilar anastomosis, usually arising from the cavernous or precavernous segment of the internal carotid artery (ICA) and connecting to the distal basilar artery. There are two types of PTA, lateral and medial. We present the first case of a lateral-type PTA arising from the large arterial ring/fenestration of the cavernous segment of the left ICA with findings from both magnetic resonance angiography and selective catheter angiography. PMID:22215430

  5. Exercícios físicos na doença arterial obstrutiva periférica Physical exercise in peripheral occlusive arterial disease

    OpenAIRE

    Elenir Carlot Locatelli; Suélen Pelizzari; Kátia Bilhar Scapini; Camila Pereira Leguisamo; Alexandre Bueno da Silva

    2009-01-01

    A maioria dos pacientes portadores de claudicação intermitente, um aspecto clínico da doença arterial periférica, tem importante limitação nas atividades físicas e redução na qualidade de vida. O objetivo deste estudo foi realizar uma revisão da literatura sobre a intervenção através de exercícios em portadores de doença arterial obstrutiva periférica com claudicação intermitente. Trata-se de uma revisão de artigos científicos consultados nos bancos de dados da BIREME, PubMed e SciELO, atravé...

  6. Persistent primitive trigeminal artery: a review.

    Science.gov (United States)

    Azab, Waleed; Delashaw, Johnny; Mohammed, Mohammed

    2012-01-01

    The trigeminal artery is the largest of the fetal carotid-basilar anastomotic arteries, and it persists for the longest embryonic period. The artery usually involutes after the development of the posterior communicating artery. The exact causes of persistence of this primitive vessel into adulthood are not completely clear. Angiographic and anatomical descriptions of the various persistent trigeminal artery (PTA) configurations and their relation to the remainder of the cerebrovascular tree and the other surrounding structures have been reported. Persistent trigeminal artery can be associated with many other vascular anomalies and disorders including aneurysms, arteriovenous malformations and carotid-cavernous fistulae. A thorough understanding of the anatomical and angiographic features of this persistent embryonic arterial channel is of utmost importance when making therapeutic decisions and embarking on surgical or endovascular intervention for any pertinent pathological condition. We review the embryology, angiographic features, microsurgical anatomy and associated vascular anomalies and disorders of the persistent trigeminal artery. PMID:22843453

  7. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... as this. Come up. We have this 21 French cardio arterial cannula for arterial profusion. On this right side, this is the 25 French quick-draw Venus cardiac visions cannula as well, ...

  8. Transposition of the Greater Arteries (TGA)

    Science.gov (United States)

    ... Great Arteries Overview Transposition of the great arteries (TGA) is a rare but serious congenital (present at ... P. Goldberg, MD Causes of TGA Causes of TGA Congenital heart defects, such as transposition of the ...

  9. Renal artery stenosis due to neurofibromatosis

    OpenAIRE

    Malav Ishwar; Kothari S

    2009-01-01

    A 4-year-old boy with hypertension due to renal artery stenosis and neurofibromatosis type 1 is presented for its rarity. Renal artery stenosis due to neurofibromatosis is underrecognized and may masquerade Takayasu′s arteritis in Asian children.

  10. Anomalous origin of left vertebral artery

    Directory of Open Access Journals (Sweden)

    Veena Vidya Shankar

    2013-01-01

    Full Text Available Vertebral artery arises from the upper surface of the first part of subclavian artery on both sides. The morphological variations of the vertebral artery are of immense importance in surgery, angiography and all non-invasive procedures. During the routine dissection of a male cadaver aged about 65 years, we observed a variation in the branching of arch of aorta. The arch of aorta gave off four branches-brachiocephalic trunk, left common carotid artery (CCA, left vertebral artery (LVA and left subclavian artery. LVA was arising between left CCA and left subclavian artery.The knowledge of variations in the vertebral artery is of great clinical interest to the neurosurgeon and radiologist for diagnostic investigation and surgical procedures of the neck.

  11. Middle cerebral artery blood velocity during rowing

    DEFF Research Database (Denmark)

    Secher, Niels Henry; Pott, F; Knudsen, L.;

    1997-01-01

    original,arterial blood pressure,central venous pressure,cerebral blood flow, exercise, transcranial Doppler......original,arterial blood pressure,central venous pressure,cerebral blood flow, exercise, transcranial Doppler...

  12. Moyamoya disease associated with an anterior inferior cerebellar artery arising from a persistent trigeminal artery

    Energy Technology Data Exchange (ETDEWEB)

    Uchino, A.; Sawada, A.; Takase, Y.; Kudo, S. [Department of Radiology, Saga Medical School, 5-1-1, Nabeshima, Saga, 849-8501 (Japan); Koizumi, T. [Department of Neurosurgery, Saga Medical School, 5-1-1, Nabeshima, Saga, 849-8501 (Japan)

    2002-07-01

    The authors present a case of moyamoya disease associated with a persistent trigeminal artery from which the anterior inferior cerebellar artery arose. We reviewed previously reported cases of moyamoya disease associated with persistent carotid-basilar arterial anastomosis and investigated the embryology of this rare arterial variation. (orig.)

  13. Cardioembolic occlusion of the internal carotid artery presented with infarction in the posterior cerebral artery territory

    Institute of Scientific and Technical Information of China (English)

    XUE Su-fang; JIA Jian-ping

    2010-01-01

    @@ Posterior circulation stroke may rarely be associated with occlusive disease in the anterior circulation, such as in the context of a direct (fetal) origin of the posterior cerebral artery (PCA) from the internal carotid artery (ICA), or in the presence of a persistent trigeminal artery (PTA) or persistent hypoglossal artery (PHA).1,2

  14. Phrenic Nerve Injury during Coronary Artery Bypass

    OpenAIRE

    Guinn, Gene A.; Beall, Arthur C.; Lamki, Neela; Heibig, Jacques; Thornby, John

    1990-01-01

    After coronary artery bypass, some patients have diaphragmatic elevation, usually on the left side. To test our hypothesis that this phenomenon is due to phrenic nerve injury resulting from either 1) dissection of the proximal portion of the left internal mammary artery or 2) topical cooling of the heart with icy slush, we performed the following 2-part study. First, we reviewed our hospital records of 99 coronary artery bypass patients, 55 of whom had received left internal mammary artery gr...

  15. Vertebral artery injuries in cervical spine surgery

    OpenAIRE

    Schroeder, Gregory D.; Hsu, Wellington K.

    2013-01-01

    Background: Vertebral artery injuries during cervical spine surgery are rare, but potentially fatal. When performing cervical spine surgery, it is imperative that the surgeon has a systematic approach for avoiding, and if necessary, dealing with a vertebral artery injury. Methods: This is a review paper. Results: Upper posterior cervical spine surgeries put the vertebral artery at the highest risk, as opposed to anterior subaxial cervical spine procedures, which put the artery at the least ri...

  16. Coronary Artery Manifestations of Fibromuscular Dysplasia

    OpenAIRE

    Michelis, Katherine C.; Olin, Jeffrey W.; Kadian-Dodov, Daniella; D’Escamard, Valentina; Kovacic, Jason C.

    2014-01-01

    Fibromuscular dysplasia (FMD) involving the coronary arteries is an uncommon but important condition that can present as acute coronary syndrome, left ventricular dysfunction, or potentially sudden cardiac death. Although the classic angiographic “string of beads” that may be observed in renal artery FMD does not occur in coronary arteries, potential manifestations include spontaneous coronary artery dissection, distal tapering or long, smooth narrowing that may represent dissection, intramur...

  17. A single coronary artery with the right coronary artery originating from the left anterior descending artery detected by cardiac CT: A case report

    International Nuclear Information System (INIS)

    The right coronary artery arising from the left anterior descending artery is a rare coronary artery anomaly. In a 56 year old female, an anomaly with the right coronary artery, originating from the left anterior descending artery, coursing anteriorly to the pulmonary artery was detected by cardiac CT. Therefore, we hereby report a case of the single left coronary artery diagnosed by a 64 slice multidetector cardiac CT

  18. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... And the bypass vessel is the so-called “internal mammary artery.” That’s an artery, as opposed to ... you very much. -- while I’m preparing the internal mammary artery for bypass. Good. All right. We ...

  19. Peripheral Arterial Disease (P.A.D.)

    Science.gov (United States)

    ... turn Javascript on. Peripheral Artery Disease (P.A.D.) What is P.A.D.? Arteries Clogged With Plaque Peripheral arterial disease (P. ... button on your keyboard.) Why Is P.A.D. Dangerous? Click for more information Blocked blood flow ...

  20. Multimodality imaging of coronary artery bypass grafts

    OpenAIRE

    Salm, Liesbeth Pauline

    2006-01-01

    This thesis describes multiple imaging modalities to examine coronary artery bypass grafts, and the research which was performed to further develop noninvasive imaging techniques to detect stenoses in native coronary arteries and bypass grafts in patients who experienced recurrent chest pain after coronary artery bypass grafting (CABG).

  1. Arterialización venosa temporal del pie diabético Temporal venous arterialization of the diabetic foot

    OpenAIRE

    Francisco Lengua; Andrés La Madrid; Carlos Acosta; Jorge Vargas

    2010-01-01

    Contexto: La primera idea que tuvieron los cirujanos (1902) para evitar amputaciones por isquemia fue la de desviar el flujo arterial al sistema venoso por intermedio de una fístula arteriovenosa entre vasos adyacentes, pero con resultados inciertos. Desde entonces se han inventado las simpatecomias, las endarteriectomias y los injertos puentes o bypass y, últimamente, otros avances médicos, quirúrgicos y endovasculares. Sin embargo, en el mundo se siguen haciendo amputaciones, sobre todo en ...

  2. Recursos y enlaces sobre comunidades de aprendizaje

    OpenAIRE

    Ferrer Esteban, Gerard

    2005-01-01

    Obras y artículos sobre el proyecto Comunidades de Aprendizaje desarrollado en el Estado español. Tesis doctorales sobre comunidades de aprendizaje. Fundamentación teórica de las comunidades de aprendizaje. Sitios en Internet relacionados con las comunidades de aprendizaje y proyectos afines de desarrollo comunitario en contextos escolares.

  3. On GAMER, plataforma de continguts sobre videojocs

    OpenAIRE

    Villegas Bonachera, José Ricardo

    2015-01-01

    Desenvolupament d'una plana web amb disseny responsiu sobre videojocs en català a partir del gestor de continguts WordPress. Desarrollo de una página web con diseño responsivo sobre videojuegos en catalán a partir del gestor de contenidos WordPress. Bachelor thesis for the Multimedia program on Computer Science.

  4. Anomalous external carotid artery-internal carotid artery anastomosis in two patients with proximal internal carotid arterial remnants

    International Nuclear Information System (INIS)

    Two angiographic instances of anomalous external carotid artery (ECA) and internal carotid artery (ICA) anastomosis are described, each occurring at the C2-3 level and bearing remnants of proximal ICA. The ICA remnant of one patient (identifiable immediately upon bifurcation of the common carotid artery) was hypoplastic, and that of the other patient was an occluded arterial stump. These features are not typical of non-bifurcating ICA. The occipital artery originated from an anomalous connection in one instance and from the main trunk of the ECA (just past the ECA-ICA connection) in the other

  5. Anomalous external carotid artery-internal carotid artery anastomosis in two patients with proximal internal carotid arterial remnants

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Chang Hun [Dept. of Neurology, Stroke Center, Myongji Hospital, Goyang (Korea, Republic of); Cho, Young Dae; Kang, Hyun Seung; Kim, Jeong Eun; Han, Moon Hee [Seoul National University Hospital, Seoul National University College of Medicine, Seoul (Korea, Republic of); Jung, Seung Chai [Dept. of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul (Korea, Republic of); Ahn, Jun Hyong [Dept. of Neurosurgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang (Korea, Republic of)

    2015-08-15

    Two angiographic instances of anomalous external carotid artery (ECA) and internal carotid artery (ICA) anastomosis are described, each occurring at the C2-3 level and bearing remnants of proximal ICA. The ICA remnant of one patient (identifiable immediately upon bifurcation of the common carotid artery) was hypoplastic, and that of the other patient was an occluded arterial stump. These features are not typical of non-bifurcating ICA. The occipital artery originated from an anomalous connection in one instance and from the main trunk of the ECA (just past the ECA-ICA connection) in the other.

  6. Bilateral posterior cerebral artery infarction

    OpenAIRE

    Ryan, Davinia; Murphy, Sinead M; Hennessey, Michael J

    2010-01-01

    We report the case of a 70-year-old man who presented with short-term memory impairment and a homonymous left inferior quadrantanopia secondary to simultaneous bilateral posterior cerebral artery (PCA) territory infarction. As in more than a quarter of cases of PCA

  7. Management of pulmonary arterial hypertension.

    LENUS (Irish Health Repository)

    Judge, Eoin P

    2013-02-01

    Pulmonary arterial hypertension (PAH) is a complex disease with a high mortality. Management of this disease is underpinned by supportive and general therapies delivered by multidisciplinary teams in specialist centres. In recent years, a number of PAH-specific therapies have improved patient outcomes. This article will discuss the management of PAH in the context of relevant recently published studies in this area.

  8. Giant superior mesenteric artery aneurysm

    OpenAIRE

    Temiz, Ahmet; Bostan, Mehmet; Şatıroğlu, Ömer; Çetin, Mustafa; Bozkurt, Engin

    2011-01-01

    Aneurysm of the superior mesenteric artery (SMA) is a rare condition and most of them are symptomatic. Gradu­ally increasing abdominal pain, intestinal ischemic symp­toms and rupture are the most common symptoms. We herein report a giant SMA aneurysm detected in a patient with complaint of abdominal discomfort.

  9. ABONOS VERDES E INOCULACIÓN MICORRÍZICA DE POSTURAS DE CAFETO SOBRE SUELOS FERRALÍTICOS ROJOS LIXIVIADOS

    Directory of Open Access Journals (Sweden)

    Ciro Sánchez Esmoris

    2011-01-01

    Full Text Available Con el objetivo de evaluar el manejo de los abonosverdes en la producción de posturas micorrizadas de cafetosobre suelos Ferralíticos Rojos Lixiviados se sembraron ycaracterizaron Sorgum vulgare, Crotalaria juncea y Canavaliaensiformis, incorporándose a los 70 días en el suelo yobteniéndose diferentes sustratos (SAV, sobre los cuales seestudió la respuesta de las posturas a la inoculación de unacepa eficiente de HMA (G. intraradices, en un diseño completamente aleatorizado con arreglo factorial (5x2 eincluyendo los tratamientos de suelo y suelo/humus de lombriz(3/1. Con posterioridad se estudió la efectividad de la inoculacióncon G. intraradices sobre otros sustratos conformados poradiciones de humus de lombriz al suelo con sorgo incorporado(SAV, en relaciones 9/1, 7/1 y 5/1 SAV/humus de lombriz,incluyendo además los tratamientos SAV, suelo/humus de lombriz(3/1 y suelo, mediante un arreglo factorial (6 x 2. Se encontraronlas mayores producciones de masa seca y extracciones de N, Py K con el sorgo, seguida por la crotalaria. Si bien los abonosverdes incrementaron ligeramente la micorrización nativa delas posturas, siempre se encontró una significativa respuestadel cafeto a la inoculación micorrízica en presencia de cualesquierade los sustratos con abonos verdes incorporados (SAV; noobstante en este tipo de suelo la utilización conjunta de losabonos verdes y la inoculación micorrízica del cafeto no lograronde por si garantizar un óptimo crecimiento de las posturas,siendo necesaria la adición de cantidades complementarias dehumus de lombriz en relación 7/1 sobre el sorgo incorporado,así como la inoculación de las posturas para obtener unamicorrización efectiva y posturas vigorosas de cafeto.

  10. Deep plantar arteries of some mammals, with special reference to the plantar metatarsal arteries.

    OpenAIRE

    Horie,Masashi; Murakami,Takuro; Kikuta,Akio

    1988-01-01

    The plantar metatarsal arteries of some mammals were studied. In the dog, raccoon dog and cat, the second proximal perforating branch was fully developed and produced the plantar metatarsal arteries. These plantar metatarsal arteries ran on the plantar surfaces of the interosseous muscles along the metatarsal bones or intermetatarsal spaces, and gave rise to the digital arteries of the second to fifth toes. In the rabbit, a branch of the medial plantar artery ran transversely on the plantar s...

  11. The Right Gastroepiploic Artery Graft for Coronary Artery Bypass Grafting: A 30-Year Experience

    Science.gov (United States)

    Suma, Hisayoshi

    2016-01-01

    Throughout its 30-year history, the right gastroepiploic artery (GEA) has been useful for in situ grafts in coronary artery bypass grafting (CABG). The early graft patency rate is high, and the late patency rate has improved by using the skeletonized GEA graft and proper target selection, which involves having a target coronary artery with a tight >90% stenosis. Total arterial revascularization with the internal thoracic artery and GEA grafts is an option for achieving better outcomes from CABG procedures. PMID:27525230

  12. Endovascular rescue from arterial rupture and thrombosis during middle cerebral artery stenting

    International Nuclear Information System (INIS)

    Intravascular stents are being used with increasing frequency in interventional neuroradiology. Iatrogenic arterial rupture is an uncommon but serious complication. We present a case of arterial rupture and subarachnoid haemorrhage during middle cerebral artery stenting, treated by emergency additional, overlapping stenting and balloon tamponade of the dissected vessel. Thrombotic occlusion of the artery was managed by intra-arterial abciximab. Normal vessel patency was re-established within 20 min and the patient recovered with no neurological deficit. (orig.)

  13. An isolated left subclavian artery supplied by a collateral artery from the abdominal aorta

    Energy Technology Data Exchange (ETDEWEB)

    Ming, Zhu; Qian, Wang [Shanghai Jiaotong University School of Medicine, Department of Radiology, Shanghai Children' s Medical Center, Shanghai (China)

    2009-08-15

    An isolated left subclavian artery is a rare anomaly. We report a 9-month-old boy with an isolated left subclavian artery associated with tetralogy of Fallot and the right aortic arch. MRI and angiography show that the blood supply through the left subclavian artery was maintained by a large tortuous collateral artery from the abdominal aorta. This type of collateral artery structure is unique. (orig.)

  14. An isolated left subclavian artery supplied by a collateral artery from the abdominal aorta

    International Nuclear Information System (INIS)

    An isolated left subclavian artery is a rare anomaly. We report a 9-month-old boy with an isolated left subclavian artery associated with tetralogy of Fallot and the right aortic arch. MRI and angiography show that the blood supply through the left subclavian artery was maintained by a large tortuous collateral artery from the abdominal aorta. This type of collateral artery structure is unique. (orig.)

  15. Efecto inmediato del vendaje Dynamic Tape® sobre la torsión tibial externa con dolor en un futbolista

    Directory of Open Access Journals (Sweden)

    B. de la Cruz Torres

    2016-03-01

    Full Text Available El objetivo de estudio fue evaluar el efecto inmediato del vendaje Dynamic Tape® sobre la torsión tibial externa con dolor en un futbolista y las propiedades contráctiles de los músculos superficiales implicados. Se evaluó un futbolista que presentó torsión tibial externa con sintomatología dolorosa en la extremidad inferior derecha. Se midió el ángulo muslo-pie y las propiedades contráctiles de la musculatura superficial mediante tensiomiografía en ambas extremidades inferiores y el dolor percibido. Se aplicó el vendaje Dynamic Tape® durante 10 días y se volvió a medir. Se observó una reducción del ángulo muslo-pie de la extremidad inferior derecha y del dolor en un 55%. La musculatura con mayor tensión experimentó una reducción de la activación muscular mientras que la musculatura debilitada aumentó su activación muscular. Como conclusión, en el caso estudiado, el Dynamic Tape® puede considerarse una herramienta terapéutica complementaria muy efectiva para reducir la torsión tibial externa con dolor.

  16. Tres perspectivas sobre cómo pueden las empresas multinacionales contribuir efectivamente a la consecución de los ODM

    Directory of Open Access Journals (Sweden)

    Carmen Valor

    2009-04-01

    Full Text Available Este artículo trata de responder a la siguiente pregunta de investigación: ¿puede o no la empresa multinacional, a través de la llamada responsabilidad social corporativa, contribuir a la consecución de los Objetivos de Desarrollo del Milenio? Para ello, analiza la postura de los distintos agentes implicados: políticos (especialmente Naciones Unidas, pero también OCDE y la Unión Europea, económicos (asociaciones empresariales y sociales (organizaciones de la sociedad civil. Tras revisar los documentos emanados de estas organizaciones sobre el particular, se concluye que hay una divergencia fundamental entre los agentes económicos, que concluyen que siempre la empresa hace una contribución efectiva a los ODM, y los sociales, que en general se manifiestan en contra, ocupando los agentes políticos un punto intermedio en el continuo. Estas divergencias se dan en tres planos: motivación de la empresa para erradicar la pobreza, formas de realización y papel de la responsabilidad social corporativa.

  17. Estrategia educativa sobre lactancia materna. Policlínico "Joaquín de Agüero". Marzo 2007 a Marzo 2008

    Directory of Open Access Journals (Sweden)

    Yoycet Ruiz de Villa Martínez

    2011-01-01

    Full Text Available Se analizó que no todas las madres conocen la necesidad de lactar a sus hijos en los primeros meses de vida, lo cual obstaculiza el éxito de la lactancia materna exclusiva (al sexto mes, por lo que se realizó una estrategia de intervención educativa con el objetivo de incrementar el nivel de conocimientos en las madres del Grupo Básico de Trabajo No.2 del Policlínico "Joaquín de Agüero y Agüero". El universo estuvo constituido por 149 madres de niños de 0 a 6 meses de edad, aplicando una encuesta para identificar las necesidades de aprendizaje sobre la lactancia materna. Posteriormente se llevó a cabo un programa educativo, utilizándose técnicas participativas y demostrativas, aplicándose finalmente la misma encuesta para poder comparar, a través de la evaluación, los resultados de la intervención. Al inicio predominó la evaluación de regular lo cual fue modificada al final, mostrándose la eficacia del programa aplicado. Se concluyó que la intervención fue efectiva predominado un criterio muy satisfactorio de las madres participantes.

  18. Evaluación del impacto de los multimicronutrientes en polvo sobre la anemia infantil en tres regiones andinas del Perú

    Directory of Open Access Journals (Sweden)

    César V Munayco

    2013-06-01

    Full Text Available Con el objetivo de determinar el impacto de la administración con multimicronutrientes (MMN en polvo sobre la anemia infantil en tres regiones andinas del Perú, se estableció un sistema de vigilancia centinela en 29 establecimientos de Andahuaylas, Ayacucho y Huancavelica, en niños de 6 a 35 meses de edad, a quienes se les indicó MMN por un periodo de 12 meses, entre el 2009 y 2011. Además de los datos sociodemográficos de los menores y las madres, se determinó los niveles de hemoglobina al inicio y al final del estudio. Entre los menores que culminaron la suplementación, la prevalencia de anemia se redujo de 70,2 a 36,6% (p<0,01, y se evidenció que el 55,0% y el 69,1% de niños con anemia leve y moderada al inicio del estudio, la habían superado al término del mismo. Se concluye que la suplementación con MMN en polvo puede ser una estrategia efectiva en la lucha contra la anemia.

  19. Historicismo: notas sobre um paradigma

    Directory of Open Access Journals (Sweden)

    José D’Assunção Barros

    2012-08-01

    Full Text Available Este artigo tem por objetivo desenvolver algumas considerações sobre o Historicismo e sua possibilidade de ser examinado como um dos paradigmas que concorrem para o estabelecimento de uma história científica no século XIX. O primeiro ponto tratado é relativo às origens do paradigma Historicista na transição do século XVIII para o século XIX. Na sequência, aproximamo-nos da apropriação conservadora do paradigma historicista no novo contexto no qual a burguesia européia está assentada no Poder, combinando-se com a consolidação dos modernos estados-nações. A especificação das características deste paradigma constituem o principal ponto de análise

  20. Determination of arterial wall shear stress

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The arteries can remodel their structure and function to adapt themselves to the mechanical environment. In various factors that lead to vascular remodeling, the shear stress on the arterial wall induced by the blood flow is of great importance. However, there are many technique difficulties in measuring the wall shear stress directly at present. In this paper, through analyzing the pulsatile blood flow in arteries, a method has been proposed that can determine the wall shear stress quantitatively by measuring the velocity on the arterial axis, and that provides a necessary means to discuss the influence of arterial wall shear stress on vascular remodeling.

  1. Location of foot arteries using infrared images

    Science.gov (United States)

    Villasenor-Mora, Carlos; González-Vega, Arturo; Martín Osmany Falcón, Antonio; Benítez Ferro, Jesús Francisco Guillemo; Córdova Fraga, Teodoro

    2014-11-01

    In this work are presented the results of localization of foot arteries, in a young group of participants by using infrared thermal images, these are the dorsal, posterior tibial and anterior tibial arteries. No inclusion criteria were considered, that causes that no strong statistical data about the influence of the age in the arterial localization. It was achieved to solve the confusion when veins present a heat distribution similar to the artery and in the position of this. it contributes to enhance the rate of location of arteries. In general it is possible to say that the use of infrared thermal images is a good technique to find the foot arteries and can be applied in its characterization in a future. The procedure proposed is a non-invasive technique, and in certain fashion does not requires specialized personnel to achieve locate the arteries. It is portable, safe, and relatively economical.

  2. Arterial endothelial function measurement method and apparatus

    Energy Technology Data Exchange (ETDEWEB)

    Maltz, Jonathan S; Budinger, Thomas F

    2014-03-04

    A "relaxoscope" (100) detects the degree of arterial endothelial function. Impairment of arterial endothelial function is an early event in atherosclerosis and correlates with the major risk factors for cardiovascular disease. An artery (115), such as the brachial artery (BA) is measured for diameter before and after several minutes of either vasoconstriction or vasorelaxation. The change in arterial diameter is a measure of flow-mediated vasomodification (FMVM). The relaxoscope induces an artificial pulse (128) at a superficial radial artery (115) via a linear actuator (120). An ultrasonic Doppler stethoscope (130) detects this pulse 10-20 cm proximal to the point of pulse induction (125). The delay between pulse application and detection provides the pulse transit time (PTT). By measuring PTT before (160) and after arterial diameter change (170), FMVM may be measured based on the changes in PTT caused by changes in vessel caliber, smooth muscle tone and wall thickness.

  3. Thermoterapy effective and safer than miltefosine in the treatment of cutaneous leishmaniasis in Colombia Termoterapia efectiva y más segura que la miltefosina en el tratamiento de la leishmaniasis cutánea en Colombia

    Directory of Open Access Journals (Sweden)

    Liliana López

    2013-06-01

    tratamiento de la leishmaniosis cutánea en Colombia. Adultos pertenecientes al Ejército de Colombia participaron el estudio. Miltefosina, una cápsula de 50 mg tres veces día durante 28 días, vía oral (n = 145. Termoterapia (Thermomed® aplicación de 50 °C/30" sobre la lesión y el área circundante (n = 149. Ambos grupos fueron comparables en características sociodemográficas, clínicas y parasitológicas. Eficacia de la miltefosina por protocolo 70% (85/122 pacientes y 69% (85/145 pacientes por intención a tratar. Termoterapia eficacia por protocolo 64% (86/134 pacientes y 58% (86/149 pacientes por intención a tratar. En miltefosina los eventos adversos fueron principalmente de tipo gastrointestinal y en termoterapia se encontró dolor en el sitio de la lesión luego del tratamiento. En el análisis de eficacia (intención a tratar y protocolo no se encontró diferencia estadísticamente significativa entre los tratamientos evaluados. ClinicalTrials.gov: NCT00471705.

  4. Hyperdensity of the Basilar Artery on Postmortem CT: A Potential Indicator for Basilar Artery Thrombosis.

    Science.gov (United States)

    Garland, Jack; Tse, Rexson; Beh, Raymond J; Lyons, Timothy J; Cala, Allan D

    2016-06-01

    Basilar artery thrombosis constitutes 1% of all types of stroke, carries a mortality rate of up to 90%, and is one of the rarer causes of sudden death. It leads to brain stem ischemia and commonly presents with impaired consciousness, cranial nerve palsy, hemiplegia or quadriplegia, and sudden collapse. Clinically, the diagnosis of basilar artery thrombosis is made on clinical symptoms, along with a hyperdense basilar artery in antemortem computed tomography (CT) scan. To our knowledge, whether a hyperdense basilar artery indicates basilar artery thrombosis on postmortem CT scan is not documented in the literature. We present a case report of a 55-year-old man who on postmortem CT scan showed a hyperdense basilar artery and was subsequently confirmed to be a fatal basilar artery thrombosis. We suggest that a hyperdense basilar artery on postmortem CT should prompt the pathologist to consider basilar artery thrombosis. PMID:27049662

  5. Evaluation of renal artery stenosis using color Doppler sonography in young patients with multiple renal arteries

    Institute of Scientific and Technical Information of China (English)

    QIN Wei; ZHANG Xin; YANG Min; ZHONG Xu-hui; ZHAO Ming-hui

    2011-01-01

    Background Some individuals have multiple renal arteries. Severe stenosis in one of the arteries may cause refractory hypertension. The detection of stenosis within one of the multiple renal arteries usually required invasive procedures, such as computed tomographic angiography (CTA) and magnetic resonance angiography (MRA). This study reported the application of color Doppler sonography (CDS) in the detection of severe stenosis in one of the multiple arteries.Methods Patients with multiple renal arteries and one of the arteries with severe stenosis were retrospectively studied. Peak systolic velocities (PSV) of renal arteries and the intrarenal CDS patterns were collected and compared. The diagnosis was confirmed by digital subtraction angiography (DSA).Results Four children with multiple renal arteries and one of the arteries with stenosis were investigated. They were admitted due to refractory hypertension. CDS screening identified two renal arteries in one kidney of each patient with one of the two renal arteries having stenosis >70%. The PSV of the stenosed arteries were much higher, and the intrarenal CDS patterns supplied by the stenosed arteries changed into T-P patterns.Conclusion Non-invasive CDS technology may be a useful method to identify severe stenosis in one of multiple renal arteries in young patients.

  6. Somos un envase : Discursos sobre el aborto

    OpenAIRE

    Löcher, Jennifer Irene

    2014-01-01

    No hay persona que no tenga opinión acerca del asunto y, cada vez más, la sociedad argentina debate sobre la pregunta de si se debe legalizar/despenalizar el aborto o no. Nunca antes se habló tanto sobre el tema públicamente: se publican artículos en los diarios, hay manifestaciones a favor y hay manifestaciones en contra de la legalización del aborto. El siguiente trabajo pretende relevar y analizar discursos que circulan socialmente alrededor del debate sobre el aborto. (Párrafo extraíd...

  7. Concepciones sobre la docencia universitaria de calidad

    OpenAIRE

    Arbeláez López, Ruby; Fortes del Valle, M. Carmen; Grau Rubio, Claudia

    2008-01-01

    Con esta investigación hemos querido participar en el proceso de búsqueda y construcción del sentido de calidad aplicado a la docencia universitaria, con el objetivo general de evidenciar las concepciones sobre docencia de calidad que pueden deducirse de los procesos de evaluación de los profesores universitarios. Nuestra meta final intenta propiciar la revisión de las políticas educativas y el enriquecimiento de la cultura sobre docencia y sobre evaluación docente. La mayor aportación de nue...

  8. Ensaio sobre Saramago = Essay on Saramago

    OpenAIRE

    Weigert, Sergio

    2013-01-01

    Partindo da obra de José Saramago, Ensaio sobre a Cegueira, constrói-se o “Ensaio sobre Saramago” sob perspectiva filosófica, fundamentada particularmente em Fredric Jameson. A interrupção da quotidianidade, matéria do desenvolvimento do conteúdo, faz aflorar a hipótese da temporalidade congelada, suporte da argumentação do teórico. Levanta-se a discussão sobre Modernidade e Pós-Modernidade da obra de Saramago, avançando no recurso da ironia, não como alicerce, mas como teia que tece, envolve...

  9. Avaliação do conhecimento sobre níveis tensionais e cronicidade da hipertensão: estudo com usuários de uma Farmácia Básica no Sul do Brasil

    Directory of Open Access Journals (Sweden)

    Fabiane Raquel Motter

    2015-02-01

    Full Text Available Objetivou-se avaliar o conhecimento sobre hipertensão arterial sistêmica (HAS e fatores associados, por meio de estudo transversal com adultos usuários de medicamentos anti-hipertensivos adquiridos na Farmácia Básica de São Francisco de Paula, Rio Grande do Sul, Brasil. Avaliou-se o conhecimento sobre os limites de normalidade para a pressão arterial sistólica e diastólica e sobre a condição crônica da HAS. Utilizou-se regressão multinomial para conhecimento (satisfatório/moderado/insatisfatório e considerou-se como satisfatório o conhecimento sobre dois ou mais aspectos avaliados. Dos 635 usuários, portadores de HAS, 27,7% apresentaram conhecimento satisfatório e 47,2% conheciam apenas a cronicidade da HAS. Após ajuste, sexo feminino, maior escolaridade, não morar só, comportamento saudável e maior tempo de diagnóstico associaram-se ao conhecimento satisfatório sobre a HAS. Considerando a importância da autonomia do portador no monitoramento dos níveis tensionais e da continuidade do tratamento no controle da pressão arterial, encontrou-se baixa prevalência de conhecimento satisfatório.

  10. Puente sobre el Oosterschelde, Holanda

    Directory of Open Access Journals (Sweden)

    Hoving, H. T.

    1967-03-01

    Full Text Available This new bridge, forming part of the Delta project, is made of concrete, and was built by successive overhangs. Precast units were mainly used. The bridge is 5,000 m long, and is 11.85 m wide. The main spans are 95 m in length, except one, which can be opened up to sea traffic, which is 40 m long. The free height of the bridge over the sea is 15 m, which is insufficient for large ships. This required that one of the spans, in deep water, should open up, on hinges, and provide free passage to large ships. The intermediate bridge supports are of special interest. They rest on piles which go down to 38 m. They are hollow, cylindrical, of 4.35 m external diameter, and are driven into the ground in several stages, as they penetrate through the sands at the bottom of the Oosterschelde. To drive them in, an excavating device, inside the pile, was utilised, and also a dredging and suction mechanism, to clean out the bottom, and allow the piles to sink by gravity. But when external friction did not allow this to happen, the piles were weighed down with up to 500 tons of ballast. A series of three of these piles, in a row, makes up each bridge support. A cross member over the pile heads supports, in turn, the bridge deck. The bridge was built in successive sections, overhanging from each support, and then finally connected with a central portion. Use of precast units has been very extensive, so that the bridge can be justiaflably regarded as being prefabricated.Este nuevo puente, que forma parte del Plan de obras denominadas del Delta, es de hormigón y se ha construido por el procedimiento de voladizos sucesivos, utilizando, en su mayor parte, elementos prefabricados. Tiene una longitud total de 5.000 m; una anchura de 11,85 m; tramos principales de 95 m de luz, salvo uno, levadizo, que tiene 40 m. La altura libre sobre las ag^uas del mar es de 15 m, que es insuficiente para las naves de gran tonelaje; esto exigió que uno de sus tramos, en aguas

  11. Influencia del acabado superficial sobre el comportamiento tribológico de capas nitrocarburadas en acero X40CrMoV5 1

    Directory of Open Access Journals (Sweden)

    Miguel, V.

    2005-12-01

    Full Text Available In this work the surface roughness behaviour in the forming of gaseous nitrocarburized layers has been analyzed. Ra values from 0.02 to 1.50 μm. has been considered. Obtained results prove a minor influence on layer thickness. A little increase of Ra has been observed. The abrasive wear resistance of nitrocarburized specimens was researched. The carbonitride ε is the only constituent in the about 6 μm thickness layers that have been carried out in this work. The tests revealed a minor wear resistance of the external part in the layers. This way, the external zone is less effective to wear phenomena than the internal. The specimens with small roughness parameters values show a higher poor wear resistance zone.

    En este trabajo se estudia la influencia que el acabado superficial del acero X40CrMoV5 1 tiene sobre la capa blanca o de combinación formada en el proceso de la nitrocarburación gaseosa. Se consideran acabados superficiales en el rango de 0,02 a 1,50 μm para Ra. Los resultados obtenidos indican que la rugosidad aumenta en todos los casos, aunque tiene poca influencia sobre el espesor de capa formada. También se ha investigado el comportamiento frente al desgaste abrasivo de las capas obtenidas que están constituidas en su totalidad por nitrocarburo ε y son de un espesor aproximado de 6 μm. Se ha encontrado un comportamiento diferenciado frente al desgaste de la zona externa de la capa frente a la zona subsuperficial. Los resultados revelan que la capa externa de la capa de combinación es poco efectiva frente al desgaste en relación con la capa subsuperficial. La zona de peor comportamiento es mayor para las probetas con acabados superficiales más finos.

  12. Asociación entre hipertensión arterial y el exceso de peso en niños y adolescentes entre los 8 y 18 años de colegios de Bogotá

    OpenAIRE

    González Huérfano, María Alejandra

    2015-01-01

    La epidemia global de obesidad se ha visto relacionada con el aumento de la prevalencia de hipertensión arterial en la edad pediátrica. Objetivo: Determinar la frecuencia de hipertensión arterial y obesidad en niños y adolescentes de Bogotá y establecer si existe asociación entre hipertensión arterial y el exceso de peso. Metodología: Estudio descriptivo transversal que incluyó 270 niños y adolescentes entre 8 y 18 años de dos colegio de Bogotá. Se obtuvo información sobre edad, peso, t...

  13. Mineralization (calcification) of coronary arteries.

    Science.gov (United States)

    Pawlikowski, M; Pfitzner, R; Wachowiak, J

    1994-01-01

    Mineralogical investigations of calcifications located in coronary vessels were performed on the material obtained from the endarterectomized arteries of 18 patients (15 M, 3 F, aged 36-65) during surgical revascularization procedures consisting in coronary artery bypass grafting. The samples were tested using scanning microscopy, X-ray diffractometry, infrared spectroscopy, atomic absorption spectroscopy, electron microprobe and neutron activation spectroscopy. The results of analyses were calculated with the use of computer programmes. Two types of mineralization were determined: 1. secret mineralization identified as higher than normal content of elements in biological tissues, not demonstrating any mineral grains, and 2. apparent mineralization, appearing micro- and macroscopically as grains composed mainly of hydroxyapatite containing admixture of carbonate groups, i.e. a mineral identical with apatite present in bones, or as calcification of other tissues (heart valves, lungs etc.). The authors suggest that the phenomenon of mineralization should be taken into consideration in the preventive treatment of coronary atheriosclerosis. PMID:7808039

  14. Dilemas éticos en el diagnóstico de hipertensión arterial

    OpenAIRE

    Sandra Santana López; Rolando Montero Díaz

    2012-01-01

    Se realizó una revisión sobre los dilemas éticos en el diagnóstico de la hipertensión arterial, así como de algunos elementos en el surgimiento del concepto de bioética. Se identificaron los conflictos éticos que aparecen en cada etapa del diagnóstico de la hipertensión arterial: en el momento de suministrar la información, en el instante de la indicación y realización de las pruebas diagnósticas, en la comunicación del diagnóstico y en la toma de decisiones posteriores. Se concluye que el de...

  15. Bilateral posterior cerebral artery infarction.

    Science.gov (United States)

    Ryan, Davinia; Murphy, Sinead M; Hennessey, Michael J

    2010-01-01

    We report the case of a 70-year-old man who presented with short-term memory impairment and a homonymous left inferior quadrantanopia secondary to simultaneous bilateral posterior cerebral artery (PCA) territory infarction. As in more than a quarter of cases of PCA infarction, no aetiological cause was identified. Unlike the transient nature of symptoms in some cases following unilateral infarction, his deficits persisted on 2-month follow-up. PMID:22798298

  16. Coronary artery aneurysm: case report

    OpenAIRE

    Burkhart Harold M; Everett Jeffrey E

    2008-01-01

    Abstract Introduction Aneurysms of the left main coronary artery are rare with an incidence of 0.1% in large angiographic series. The majority are atherosclerotic in origin. Other causes include connective tissue disorders, trauma, vasculitis, congenital, mycotic and idiopathic. The primary complication is myocardial ischemia or infarction, with rupture being rare. Treatment options include anticoagulation, custom made covered stents, reconstruction, resection, and exclusion with bypass. Case...

  17. Infectious and coronary artery disease

    OpenAIRE

    Rezaee-Zavareh, Mohammad Saeid; Tohidi, Mohammad; Amin SABOURI; Ramezani-Binabaj, Mahdi; Sadeghi-Ghahrodi, Mohsen; Einollahi, Behzad

    2016-01-01

    BACKGROUND Atherosclerotic event is one of the most causes of death in the world. Coronary artery disease (CAD) is one manifestation of atherosclerosis. It is well-known that several risk factors, such as diabetes mellitus (DM), smoking, hypertension (HTN), have effects on it. It is proposed that infection can lead to atherosclerosis or even make its process faster. Here, we discuss about the effect of some of infectious agents on the atherosclerosis and CAD. METHODS In this study, first we d...

  18. Collagen turnover in arterial disease

    OpenAIRE

    Sluijter, J.P.G.

    2004-01-01

    Increased atherosclerotic plaque formation can lead to lumen reduction and finally to lumen obstruction. Percutaneous transluminal angioplasty (PTA) or balloon angioplasty (dilation) are approaches generally used to treat coronary, but also peripheral atherosclerotic disease. Their goal is to restore the blood supply. The repair process or restructuring of the artery after balloon angioplasty comprises two major features, neointimal formation and geometrical remodeling, and results in a decre...

  19. Digital subtraction angiography of a persistent trigeminal artery variant.

    Science.gov (United States)

    Temizöz, Osman; Genchellac, Hakan; Unlü, Ercüment; Cağli, Bekir; Ozdemir, Hüseyin; Demir, M Kemal

    2010-09-01

    Persistent trigeminal artery variants are described as cerebellar arteries that directly originate from the precavernous segment of the internal carotid artery. This has been observed in 0.18% of cerebral catheter angiograms. On the other hand, a persistent trigeminal artery variant feeding both the anterior inferior cerebellar artery and the posterior inferior cerebellar artery territory is very rare. We present this uncommon anomalous artery along with digital subtraction angiography findings and discuss its clinical significance in light of the literature. PMID:19821254

  20. Aberrant Ovarian Collateral Originating from External Iliac Artery During Uterine Artery Embolization

    International Nuclear Information System (INIS)

    We report a case of a 35-year-old woman who underwent uterine artery embolization (UAE) for symptomatic multiple uterine fibroids with collateral aberrant right ovarian artery that originated from the right external iliac artery. We believe that this is the first reported case in the literature of this collateral uterine flow by the right ovarian artery originated from the right external iliac artery. We briefly present the details of the case and review the literature on variations of ovarian artery origin that might be encountered during UAE.

  1. Superficial Ulnar Artery Associated with Anomalous Origin of the Common Interosseous and Ulnar Recurrent Arteries

    Science.gov (United States)

    Pamidi, Narendra; Nayak, Satheesha B; Jetti, Raghu; Thangarajan, Rajesh

    2016-01-01

    Occurrence of vascular variations in the upper limb is not uncommon and is well described in the medical literature. However, occurrence of superficial ulnar artery associated with unusual origin of the common interosseous and ulnar recurrent arteries is seldom reported in the literature. In the present case, we report the anomalous origin of common trunk of common interosseous, anterior and posterior ulnar recurrent arteries from the radial artery, in a male cadaver. Further, ulnar artery had presented superficial course. Knowledge of anomalous arterial pattern in the cubital fossa reported here is clinically important during the angiographic procedures and plastic surgeries. PMID:27437201

  2. Homeostasis del calcio en miocitos del árbol arterial pulmonar

    OpenAIRE

    Smani Hajami, Tarik

    2000-01-01

    En el presente trabajo se ha estudiado la homeostasis de la (Ca2+) i en miocitos aislados de la arteria pulmonar y el efecto de la liberación del ión de los almacenes intracelulares sobre las conductancias iónicas presentes en la membrana plasmática. Los resultados indican que tanto la regulación de la (Ca2+)i como los efectos elecrofisiológicos que se derivan de los cambios de los niveles de Ca2+ intracelulares dependen de la localización de los miocitos a lo largo del árbol arterial pulmon...

  3. Thyroid artery embolization for hyperthyroidism

    International Nuclear Information System (INIS)

    Objective: To evaluate the method and result of thyroid artery embolization as a new therapy for hyperthyroidism. Methods: Twenty-two patients with hyperthyroidism underwent selective thyroid artery embolization. Totally 52 thyroid arteries were embolized with microspheres. The indications to this therapy were following: hyperthyroid patients having indications to surgical and 131I therapy, clinically being difficult to complete the preparation for subtotal thyroidectomy and having high risk for surgical process because of their huge thyroid gland. Results: Serum level of thyroid hormones dropped significantly [median T3 from 8.8 nmol/L (4.3-43.0 nmol/L) to 4.0 nmol/L (1.1-9.2 nmol/L), median T4 from 206.4 nmol/L (77.4-748.2 nmol/L) to 144.5 nmol/L (25.8-279.9 nmol/L), P 131I treatment of hyperthyroidism. A long term follow-up study is still needed

  4. Morphology of atherosclerotic coronary arteries

    Science.gov (United States)

    Holme, Margaret N.; Schulz, Georg; Deyhle, Hans; Hieber, Simone Elke; Weitkamp, Timm; Beckmann, Felix; Herzen, Julia; Lobrinus, Johannes A.; Montecucco, Fabrizio; Mach, François; Zumbuehl, Andreas; Saxer, Till; Müller, Bert

    2012-10-01

    Atherosclerosis, the narrowing of vessel diameter and build-up of plaques in coronary arteries, leads to an increase in the shear stresses present, which can be used as a physics-based trigger for targeted drug delivery. In order to develop appropriate nanometer-size containers, one has to know the morphology of the critical stenoses with isotropic micrometer resolution. Micro computed tomography in absorption and phase contrast mode provides the necessary spatial resolution and contrast. The present communication describes the pros and cons of the conventional and synchrotron radiation-based approaches in the visualization of diseased human and murine arteries. Using registered datasets, it also demonstrates that multi-modal imaging, including established histology, is even more powerful. The tomography data were evaluated with respect to cross-section, vessel radius and maximal constriction. The average cross-section of the diseased human artery (2.31 mm2) was almost an order of magnitude larger than the murine one (0.27 mm2), whereas the minimal radius differs only by a factor of two (0.51 mm versus 0.24 mm). The maximal constriction, however, was much larger for the human specimen (85% versus 49%). We could also show that a plastic model used for recent experiments in targeted drug delivery represents a very similar morphology, which is, for example, characterized by a maximal constriction of 82%. The tomography data build a sound basis for flow simulations, which allows for conclusions on shear stress distributions in stenosed blood vessels.

  5. Assessment of conduit artery vasomotion using photoplethysmography

    Science.gov (United States)

    Kanders, Karlis; Grabovskis, Andris; Marcinkevics, Zbignevs; Aivars, Juris Imants

    2013-11-01

    Vasomotion is a spontaneous oscillation of vascular tone. The phenomenon has been observed in small arterioles and capillaries as well as in the large conduit arteries. The layer of smooth muscle cells that surrounds a blood vessel can spontaneously and periodically change its tension and thereby the arterial wall stiffness also changes. As the understanding of the phenomenon is still rather obscure, researchers would benefit from a low-cost and reliable investigation technique such as photoplethysmography (PPG). PPG is an optical blood pulsation measurement technique that can offer substantial information about the arterial stiffness. The aims of this pilot study were to evaluate the usefulness of the PPG technique in the research of vasomotion and to investigate vasomotion in the relatively large conduit arteries. Continuous 15 minute long measurements of posterior tibial artery wall stiffness were taken. Artery diameter, electrocardiogram, blood pressure and respiration were also simultaneously registered. Fast Fourier Transform power spectra were calculated to identify unique stiffness oscillations that did not correspond to fluctuations in the systemic parameters and thus would indicate vasomotion. We concluded that photoplethysmography is a convenient method for the research of the vasomotion in large arteries. Local stiffness parameter b/a is more accurate to use and easier to measure than the pulse wave velocity which describes stiffness of a segment of an artery. Conduit arteries might exhibit a low amplitude high frequency vasomotion ( 9 to 27 cycles per minute). Low frequency vasomotion is problematic to distinguish from the passive oscillations imposed by the arterial pressure.

  6. The clinical anatomy of the conal artery.

    Science.gov (United States)

    Loukas, Marios; Patel, Swetal; Cesmebasi, Alper; Muresian, Horia; Tubbs, R Shane; Spicer, Diane; Dabrowski, Marek

    2016-04-01

    Coronary arteries have been extensively described and recognized by gross anatomic studies. However, in the clinical setting, the recognition of the conal artery is essential during coronary angiography, as well as certain congenital heart conditions such as tetralogy of Fallot. In order to provide a complete anatomic and physiologic correlation of the actual incidence and distribution of the conal artery we examined 300 formalin fixed hearts with gross dissections and 300 coronary angiograms. The conal artery was identified in all hearts examined and five main patterns were recognized. In Type A (193, 32.1%), the conal artery arose as a branch of the right coronary artery (RCA); in Type B (96, 16%), the conal artery arose from the common coronary ostium with the RCA; in Type C (242, 40.3%), the conal artery took origin from the right aortic sinus as an independent artery; in Type D (48, 8%), multiple conal arteries were present and arose from the RCA as separate branches (32, 66.6%), from a common ostium with the RCA (8, 16.6%) or from the aortic sinus (8, 16.6%); in Type E (22, 3.6%), the conal artery arose as a branch of the right ventricular branch (17, 2.8%) or acute marginal artery (5, 0.8%). The relative prevalence of the five patterns as well as the morphology and the topography of the conal artery varied significantly with the degree of coronary luminal stenosis (as observed during angiography) and also with the degree of hypertrophied ventricular wall (as observed during gross dissections). Clin. Anat. 29:371-379, 2016. © 2014 Wiley Periodicals, Inc. PMID:25255889

  7. Puente sobre el rio Medway

    Directory of Open Access Journals (Sweden)

    Freeman, Fox, Ingenieros

    1963-02-01

    have been prestressed both longitudinally and transversally. Between the two circulation roadways an elastic barrier has been placed, supported on metal posts.El puente sobre el río Medway tiene la misión de salvar dicho río en el nuevo trazado de carretera necesario para aliviar el denso tráfico estival entre Dower y Londres. Está situado en las proximidades de la ciudad de Rochester. La estructura se ha construido utilizando las vías de concurso. De todos los tipos presentados se eligió una estructura de hormigón armado. La longitud total de la obra es de 1.000 m. Los tres tramos principales de la obra salvan el río. El central es de 152 m de luz, y los dos adyacentes son de 103 m cada uno. Los accesos tienen un total de 18 tramos, que arrojan una longitud de 654 m. La anchura del puente es de 34 m, y la calzada se ha subdividido en dos direcciones de tráfico de 7,30 m cada una y, además, se han dejado dos espaldones laterales de 2,40 m de anchura. En planta se puede admitir que el puente tiene una alineación recta con una ligerísima curva, y que en el plano vertical presenta una pendiente de desagüe entre las pilas 9 y 10. Los estribos son de hormigón armado: tipo celular el del este y de hormigón en masa el del oeste. Los estribos se apoyan sobre pilotes hexagonales de hormigón armado cuya circunferencia circunscrita tiene 55 cm de radio y de 12 a 20 m de longitud. Cuando el firme se hallaba a profundidades inferiores a 6 m, los estribos se cimentaban directamente sobre el firme. Las pilas constituyen pórtico y tienen una altura variable de 9 a 30 m sobre el nivel del suelo. Los tramos de acceso forman una estructura continua simplemente apoyada. Cada tramo se compone de ocho vigas longitudinales de 30 a 41 m de longitud y de 190 toneladas cada una. Estas vigas son del tipo pretensado y prefabricado. El tramo central es del tipo cantilever, constituido por dos brazos, de 30 m de longitud, formados por vigas cajón. Cada una de estas vigas consta

  8. PERSPECTIVAS INFANTILES SOBRE LA TERRITORIALIDAD

    Directory of Open Access Journals (Sweden)

    Noelia Enriz

    2009-12-01

    Full Text Available En este trabajo nos proponemos un acercamiento a las diversas ideas infantiles sobre el territorio habitado, en el contexto particular de la población mbyá guaraní de Misiones. La fragilidad territorialidad a la que es expuesta la población indígena en Argentina se manifiestan cotidianamente en diversas áreas. La población mbyá, ha sido surcada por los límites de los estados nacionales de Paraguay, Brasil y Argentina. La sedentarización y los cercamientos de tierras en los diferentes estados, han impulsado transformaciones de las lógicas de subsistencia, de habitación y organización comunitaria. En el caso de la provincia de Misiones la acreditación burocrática de los títulos de tierras se encuentra aplazada, el estado no se compromete con la concreción de este derecho.

  9. Estudo multicasos sobre atividades inovativas

    Directory of Open Access Journals (Sweden)

    Sonia Regina Hierro Parolin

    2013-09-01

    Full Text Available Em estudos sobre competitividade argumenta-se que as empresas necessitam de estratégias baseadas em inovações e de capacidades internas em constantes e intensas transformações, não somente nos padrões tecnológicos, mas também no encadeamento do processo de gestão das atividades inovativas, como processos dinâmicos, não lineares e diversificados, em função de múltiplos fatores dos ambientes interno e externo. Para contribuir com essas discussões, neste artigo apresenta-se um estudo multicasos em quatro indústrias de médio e grande portes, de segmentos, densidades tecnológicas e históricos com inovações diferentes entre si. Como principais resultados, salientam-se o encadeamento das atividades inovativas como parte de uma estratégia organizacional para obter resultados com inovação e a afluência de todas as pessoas, e não somente as alocadas em pesquisa e desenvolvimento, para o cumprimento dessa estratégia.

  10. Sobre a psicopatologia dos atos

    Directory of Open Access Journals (Sweden)

    Roberto Calazans

    2015-07-01

    Full Text Available Este artigo pretende apresentar a psicopatologia dos atos a partir do esquema de Jacques Lacan sobre a angústia. Diferenciamos os acting-out, a passagem ao ato, os sintomas, as inibições e a angústia fazendo uma duplicação do esquema de Lacan levando em consideração os registros do simbólico, do real e do imaginário. Esse esquema permite uma abordagem da questão dos atos do sujeito sem cair em uma perplexidade do clínico, nem na confusão entre os atos e a ação. Permite também uma melhor orientação do clínico em relação às diversas modalidades de respostas subjetivas que não se restringem à questão sintomática, que é o campo inaugural da clínica psicanalítica desde a sua fundação por Sigmund Freud. Acreditamos contribuir, assim, para um maior esclarecimento desse esquema no ensino de Lacan e para que ele possa servir de orientação para o tratamento dos atos do sujeito na clínica.

  11. El Impuesto sobre Sociedades - Tema 5

    OpenAIRE

    Andrés Aucejo, Eva

    2008-01-01

    El Impuesto sobre Sociedades: Hecho imponible. Sujeto pasivo. Imputación temporal de ingresos y gastos. Régimen de transparencia fiscal. La base imponible: Ingresos computables, partidas deducibles y no deducibles. Reinversión de beneficios extraordinarios.

  12. Los derechos de autor sobre obtenciones vegetales

    Directory of Open Access Journals (Sweden)

    Rosario Silva Gilli

    2015-01-01

    Full Text Available Contenido: Las creaciones en la agricultura. Los derechos de autor sobre obtenciones vegetales. El Convenio Internacional para la protección de las obtenciones vegetales (París 1961 y sus revisiones de Ginebra 1972, 1978,1991 Objeto de la protección legal. Condiciones del cultivar. Alcance de la protección. La protección de obtenciones vegetales en el Mercosur. Los Derechos de autor en el Mercosur. El Protocolo de Armonización de normas sobre Propiedad Intelectual en el Mercosur. El Acuerdo de Cooperación y facilitación sobre la protección de las obtenciones vegetales en los Estados Partes del Mercosur.  Alcance de la normativa Mercosur. Los Derechos sobre cultivares en Uruguay. Los Derechos de autor como derechos humanos. ¿Derechos de autor vs. derecho de propiedad intelectual? Reflexión final

  13. Typology of abdominal arteries, with special reference to inferior phrenic arteries and their esophageal branches.

    Science.gov (United States)

    Piao, D X; Ohtsuka, A; Murakami, T

    1998-08-01

    Origins and distribution of the human inferior phrenic arteries were studied by dissecting 68 Japanese adult cadavers. The inferior phrenic arteries were usually observed as paired (left and right) vessels. Their origins were summarized as follows: a) the aorta itself (85/138 cases, 61.6%), b) the ventro-visceral arteries (celiaco-mesenteric system of the aorta) including the celiac trunk (39/138 cases, 28.2%) and the left gastric artery (4/138 cases, 2.9%), and c) the latero-visceral arteries (adreno-renal system of the aorta) including the middle adrenal artery (4/138 cases, 2.9%) and the renal artery (6/138 cases, 4.3%). The left and right arteries occasionally originated in common trunk from the aorta, celiaco-mesenteric system or adreno-renal system (22/138 cases, 15.9%). A typological diagram explaining these variations is given. The inferior phrenic arteries, especially the left ones, sometimes issued visceral or esophageal branches. This fact indicates that the inferior phrenic arteries are homologous with the celiac trunk and mesenteric arteries. It is further discussed that the celiac trunk and mesenteric arteries are originally paired vessels, through introduction of our previous typological diagram of the abdominal arteries. PMID:9781269

  14. Segmented Coronary Artery Aneurysms and Kawasaki Disease

    Directory of Open Access Journals (Sweden)

    Hamid Reza Ghaemi

    2011-05-01

    Full Text Available Kawasaki disease (KD is an acute vasculitis syndrome of unknown etiology. It occurs in infants and young children,affecting mainly small and medium-sized arteries, particularly the coronary arteries. Generalized microvasculitis occurs in the first 10 days, and the inflammation persists in the walls of medium and small arteries, especially the coronary arteries, and changes to coronary artery aneurysms.We report the case of a 10-month-old girl referred to our center three months after the onset of disease due to the aneurysmsof the coronary arteries. During the acute phase of her illness, she received 2 gr/kg intravenous gamma globulin; and afterher referral to us, the patient was treated by antiaggregant doses of acetylsalicylic acid (ASA (5 mg/kg and Warfarin (1 mg/daily. At three months’ follow-up, the aneurysms still persisted in the echocardiogram.

  15. The symptomatology of megadolicho basilar artery.

    Science.gov (United States)

    Herpers, M; Lodder, J; Janevski, B; van der Lugt, P J

    1983-01-01

    Cranial nerve dysfunction, obstruction hydrocephalus, signs of brain stem dysfunction, and signs of a space-occupying lesion in the posterior fossa are presumed to be related to a megadolicho basilar artery, if present. Since there are no large series of patients with such vascular anomaly, a bias in relating symptoms with the presence of a megadolicho basilar artery is not excluded. We therefore studied retrospectively the incidence of megadolicho and dolicho basilar artery on cranial CT-scan of 3332 patients of 50 years and older. Patient records were reviewed for the above mentioned symptoms. 12 out of 22 patients with a megadolicho basilar artery and 2 patients out of 40 with a dolicho basilar artery had one or two of these symptoms. It is concluded that a megadolicho basilar artery can cause cranial nerve dysfunction, obstruction hydrocephalus, signs of brain stem dysfunction, and signs of a space-occupying lesion in the posterior fossa. PMID:6317247

  16. Permanent Cortical Blindness After Bronchial Artery Embolization

    Energy Technology Data Exchange (ETDEWEB)

    Doorn, Colette S. van, E-mail: cvandoorn@gmail.com; De Boo, Diederick W., E-mail: d.w.deboo@amc.uva.nl [Academic Medical Centre, Department of Radiology (Netherlands); Weersink, Els J. M., E-mail: e.j.m.weersink@amc.uva.nl [Academic Medical Centre, Department of Pulmonology (Netherlands); Delden, Otto M. van, E-mail: o.m.vandelden@amc.uva.nl; Reekers, Jim A., E-mail: j.a.reekers@amc.uva.nl; Lienden, Krijn P. van, E-mail: k.p.vanlienden@amc.uva.nl [Academic Medical Centre, Department of Radiology (Netherlands)

    2013-12-15

    A 35-year-old female with a known medical history of cystic fibrosis was admitted to our institution for massive hemoptysis. CTA depicted a hypertrophied bronchial artery to the right upper lobe and showed signs of recent bleeding at that location. Bronchial artery embolization (BAE) was performed with gelfoam slurry, because pronounced shunting to the pulmonary artery was present. Immediately after BAE, the patient developed bilateral cortical blindness. Control angiography showed an initially not opacified anastomosis between the embolized bronchial artery and the right subclavian artery, near to the origin of the right vertebral artery. Cessation of outflow in the bronchial circulation reversed the flow through the anastomosis and allowed for spill of embolization material into the posterior circulation. Unfortunately the cortical blindness presented was permanent.

  17. Retinal Artery Occlusion Treatment with Hyperbaric Oxygen

    Directory of Open Access Journals (Sweden)

    Harun Cakmak

    2016-01-01

    Full Text Available Retinal artery occlusion is one of the vision-threating emergency situations in ophthalmology. In this paper, a case of retinal artery occlusion is presented. Fifty seven year- old female patient presented with a sudden onset visual loss in her left eye. Best corrected visual acuity (BCVA levels were 1.0 and 0.7 in the right and left eye, respectiveley. Dilated fundus examination revealed no pathological finding in the right eye. Whereas calcified plaque was seen in upper arquat artery bifurcation in the left eye. Pallorness with retinal edema was seen in this arterial trace. Retinal artery occlusion was diagnosed and patient was referred for hyperbaric oxygen therapy. After a total of 20 sessions of hyperbaric oxygen therapy, the calcified plaques disappeared and her BCVA increased to 20/20. Hyperbaric oxygen treatment is vision-saving method which should be considered in retinal artery occlusion.

  18. Modeling of blood flow in arterial trees.

    Science.gov (United States)

    Anor, Tomer; Grinberg, Leopold; Baek, Hyoungsu; Madsen, Joseph R; Jayaraman, Mahesh V; Karniadakis, George E

    2010-01-01

    Advances in computational methods and medical imaging techniques have enabled accurate simulations of subject-specific blood flows at the level of individual blood cell and in complex arterial networks. While in the past, we were limited to simulations with one arterial bifurcation, the current state-of-the-art is simulations of arterial networks consisting of hundreds of arteries. In this paper, we review the advances in methods for vascular flow simulations in large arterial trees. We discuss alternative approaches and validity of various assumptions often made to simplify the modeling. To highlight the similarities and discrepancies of data computed with different models, computationally intensive three-dimensional (3D) and inexpensive one-dimensional (1D) flow simulations in very large arterial networks are employed. Finally, we discuss the possibilities, challenges, and limitations of the computational methods for predicting outcomes of therapeutic interventions for individual patients. PMID:20836052

  19. Permanent Cortical Blindness After Bronchial Artery Embolization

    International Nuclear Information System (INIS)

    A 35-year-old female with a known medical history of cystic fibrosis was admitted to our institution for massive hemoptysis. CTA depicted a hypertrophied bronchial artery to the right upper lobe and showed signs of recent bleeding at that location. Bronchial artery embolization (BAE) was performed with gelfoam slurry, because pronounced shunting to the pulmonary artery was present. Immediately after BAE, the patient developed bilateral cortical blindness. Control angiography showed an initially not opacified anastomosis between the embolized bronchial artery and the right subclavian artery, near to the origin of the right vertebral artery. Cessation of outflow in the bronchial circulation reversed the flow through the anastomosis and allowed for spill of embolization material into the posterior circulation. Unfortunately the cortical blindness presented was permanent

  20. Visceral periadventitial adipose tissue regulates arterial tone of mesenteric arteries.

    Science.gov (United States)

    Verlohren, Stefan; Dubrovska, Galyna; Tsang, Suk-Ying; Essin, Kirill; Luft, Friedrich C; Huang, Yu; Gollasch, Maik

    2004-09-01

    Periadventitial adipose tissue produces vasoactive substances that influence vascular contraction. Earlier studies addressed this issue in aorta, a vessel that does not contribute to peripheral vascular resistance. We tested the hypothesis that periadventitial adipose tissue modulates contraction of smaller arteries more relevant to blood pressure regulation. We studied mesenteric artery rings surrounded by periadventitial adipose tissue from adult male Sprague-Dawley rats. The contractile response to serotonin, phenylephrine, and endothelin I was markedly reduced in intact vessels compared with vessels without periadventitial fat. The contractile response to U46619 or depolarizing high K+-containing solutions (60 mmol/L) was similar in vessels with and without periadventitial fat. The K+ channel opener cromakalim induced relaxation of vessels precontracted by serotonin but not by U46619 or high K+-containing solutions (60 mmol/L), suggesting that K+ channels are involved. The intracellular membrane potential of smooth muscle cells was more hyperpolarized in intact vessels than in vessels without periadventitial fat. Both the anticontractile effect and membrane hyperpolarization of periadventitial fat were abolished by inhibition of delayed-rectifier K+ (K(v)) channels with 4-aminopyridine (2 mmol/L) or 3,4-diaminopyridine (1 mmol/L). Blocking other K+ channels with glibenclamide (3 micromol/L), apamin (1 micromol/L), iberiotoxin (100 nmol/L), tetraethylammonium ions (1 mmol/L), tetrapentylammonium ions (10 micromol/L), or Ba2+ (3 micromol/L) had no effect. Longitudinal removal of half the perivascular tissue reduced the anticontractile effect of fat by almost 50%, whereas removal of the endothelium had no effect. We suggest that visceral periadventitial adipose tissue controls mesenteric arterial tone by inducing vasorelaxation via K(v) channel activation in vascular smooth muscle cells. PMID:15302842

  1. Arterial function of carotid and brachial arteries in postmenopausal vegetarians

    OpenAIRE

    Su, Ta-Chen

    2011-01-01

    Ta-Chen Su1, Pao-Ling Torng2, Jiann-Shing Jeng3, Ming-Fong Chen1, Chiau-Suong Liau1,41Division of Cardiology, Department of Internal Medicine, 2Department of Obstetrics and Gynecology, 3Department of Neurology, National Taiwan University Hospital, National Taiwan University College of Medicine, 4Cardiovascular Center, Taipei Buddist Tzu-Chi Hospital, Hsin-Dian, Taipei, TaiwanBackground: Vegetarianism is associated with a lower risk of cardiovascular disease. However, studies of arterial funct...

  2. Low prevalence of significant carotid artery disease in Iranian patients undergoing elective coronary artery bypass

    Directory of Open Access Journals (Sweden)

    Karimi Fatemeh

    2007-01-01

    Full Text Available Abstract Background Coronary artery bypass grafting ranks as one of the most frequent operations worldwide. The presence of carotid artery stenosis may increase the stroke rate in the perioperative period. Routine preoperative noninvasive assessment of the carotid arteries are recommended in many institutions to reduce the stroke rate. Methods 271 consecutive patients undergoing coronary artery bypass grafting at Shaheed Madani hospital of Tabriz, Iran (age, 58.5 Y; 73.1% male underwent preoperative ultrasonography for assessment of carotid artery wall thickness. Results Plaque in right common, left common, right internal and left internal carotid arteries was detected in 4.8%, 7.4%, 43.2% and 42.1% of patients respectively. 5 patients (1.8% had significant ( Conclusion Consecutive Iranian patients undergoing elective coronary artery bypass surgery show a very low prevalence of significant carotid artery disease.

  3. Hepatopancreatic arterial ring: bilateral symmetric typology in human celiaco-mesenteric arterial system.

    Directory of Open Access Journals (Sweden)

    Kosaka M

    2002-10-01

    Full Text Available The celiac and mesenteric arterial system including the left gastric, splenic, common hepatic, and superior mesenteric arteries shows various types of origins, courses, ramifications and anastomoses. In order to explain the various expressions of this system, we have proposed a typological model, in which celiacomesenteric arteries develop as paired or bilaterally symmetrical primordial vessels originated from the anterior aspect of the aorta, and these vessels anastomose each other with longitudinal and horizontal pathways. Here, we report 3 unusual cases characterized by arterial rings, formed by the left gastric, left accessory hepatic, proper hepatic, anterior pancreaticoduodenal, and dorsal pancreatic arteries. The dorsal pancreatic and anterior pancreaticoduodenal arteries are located to the right and left of the embryonic pancreas developing in the dorsal mesentery, respectively. Such hepatopancreatic arterial rings simultaneously containing right and left elements can only be explained using our typological model, in which the concept of paired arteries or bilateral symmetry is introduced.

  4. Hepatopancreatic arterial ring: bilateral symmetric typology in human celiaco-mesenteric arterial system.

    Science.gov (United States)

    Kosaka, Motohiro; Horiuchi, Kanji; Nishida, Keiichiro; Taguchi, Takehito; Murakami, Takuro; Ohtsuka, Aiji

    2002-10-01

    The celiac and mesenteric arterial system including the left gastric, splenic, common hepatic, and superior mesenteric arteries shows various types of origins, courses, ramifications and anastomoses. In order to explain the various expressions of this system, we have proposed a typological model, in which celiacomesenteric arteries develop as paired or bilaterally symmetrical primordial vessels originated from the anterior aspect of the aorta, and these vessels anastomose each other with longitudinal and horizontal pathways. Here, we report 3 unusual cases characterized by arterial rings, formed by the left gastric, left accessory hepatic, proper hepatic, anterior pancreaticoduodenal, and dorsal pancreatic arteries. The dorsal pancreatic and anterior pancreaticoduodenal arteries are located to the right and left of the embryonic pancreas developing in the dorsal mesentery, respectively. Such hepatopancreatic arterial rings simultaneously containing right and left elements can only be explained using our typological model, in which the concept of paired arteries or bilateral symmetry is introduced. PMID:12530508

  5. Arteries of the hand in patients with scleroderma.

    Science.gov (United States)

    Janevski, B

    1986-01-01

    The arteriographic features of the arteries of the hand in 12 patients with biopsy proven scleroderma are discussed. The lesions were primarily observed in the proper digital arteries and less frequently in the ulnar artery, the superficial arch and the common digital arteries. In this series the radial artery and the deep palmar arch were never affected. PMID:3639805

  6. Sex differences in intracranial arterial bifurcations

    DEFF Research Database (Denmark)

    Lindekleiv, Haakon M; Valen-Sendstad, Kristian; Morgan, Michael K; Mardal, Kent-Andre; Faulder, Kenneth; Magnus, Jeanette H; Waterloo, Knut; Romner, Bertil; Ingebrigtsen, Tor

    2010-01-01

    Subarachnoid hemorrhage (SAH) is a serious condition, occurring more frequently in females than in males. SAH is mainly caused by rupture of an intracranial aneurysm, which is formed by localized dilation of the intracranial arterial vessel wall, usually at the apex of the arterial bifurcation. T...... female preponderance is usually explained by systemic factors (hormonal influences and intrinsic wall weakness); however, the uneven sex distribution of intracranial aneurysms suggests a possible physiologic factor-a local sex difference in the intracranial arteries....

  7. Shape optimization of the carotid artery bifurcation

    OpenAIRE

    Bressloff, N. W.; Forrester, A.I.J.; Banks, J.; Bhaskar, K.V.

    2004-01-01

    A parametric CAD model of the human carotid artery bifurcation is employed in an initial exploration of the response of shear stress to the variation of the angle of the internal carotid artery and the width of the sinus bulb. Design of experiment and response surface technologies are harnessed for the first time in such an application with the aim of developing a better understanding of the relationship between geometry (anatomy) and sites of arterial disease.

  8. Aberrant right hepatic artery; A case report

    International Nuclear Information System (INIS)

    We present a rare case of aberrant hepatic artery in a 40-year-old male with a history of chronic cholecystitis. During laparoscopic surgery, the artery found to pass anterior to the body the gallbladder and bifurcating anterior to the gallbladder body. The surgery was un eventful. We present this anomaly of the rare condition of aberrant right hepatic artery which should be in mind during laparoscopic cholecystectomy, because inadverant injury could lead to massive bleeding and increase co morbidities. (author)

  9. Adventitial Cystic Disease of the Popliteal Artery

    OpenAIRE

    Kawarai, Shun-ichi; Fukasawa, Manabu; Kawahara, Yu

    2012-01-01

    We describe a patient with adventitial cystic disease of the popliteal artery with intermittent claudication involving the right calf during exercise. Magnetic resonance imaging (MRI) and computed tomography (CT) revealed a cystic lesion that encircled and compressed the popliteal artery. Resection of the cyst involving a segment of the affected popliteal artery and interposing an autologous vein graft resolved the symptoms, and the postoperative course was uneventful. The cyst was histologic...

  10. Idiopathic Arterial Calcification of Infancy: Case Report

    OpenAIRE

    Attia, Tarek Hamed; Abd Alhamed, Mohamed Maisara; Selim, Mohamed Fouad; Haggag, Mohamed Salah; Fathalla, Diaa

    2015-01-01

    Idiopathic arterial calcification of infancy is a rare autosomal recessive disease, characterized by deposition of calcium along the internal elastic membrane of arteries, accompanied by fibrous thickening of the intima which causes luminal narrowing. Here we are reporting a case of idiopathic arterial calcification of infancy in a Saudi female newborn of non-consanguineous pregnant woman who had polyhydramnios. The newborn baby had severe respiratory distress, systemic hypertension and persi...

  11. Elastomeric PGS Scaffolds in Arterial Tissue Engineering

    OpenAIRE

    Lee, Kee-Won; Wang, Yadong

    2011-01-01

    Cardiovascular disease is one of the leading cause of mortality in the US and especially, coronary artery disease increases with an aging population and increasing obesity1. Currently, bypass surgery using autologous vessels, allografts, and synthetic grafts are known as a commonly used for arterial substitutes2. However, these grafts have limited applications when an inner diameter of arteries is less than 6 mm due to low availability, thrombotic complications, compliance mismatch, and late ...

  12. Epicardial ultrasound in coronary artery bypass surgery

    OpenAIRE

    Budde, R.P.J.

    2005-01-01

    Chapter 1 Coronary artery bypass surgery (CABG) is traditionally performed via a median sternotomy approach on cardiopulmonary bypass (arrested heart). Since the mid 1990ties, beating heart, minimally invasive and even totally endoscopic CABG are (re)explored. In all approaches to CABG, the surgeon may face several intraoperative difficulties: 1. Localization of the target coronary artery for bypass grafting. 2. Selection of the optimal anastomotic site on the target coronary artery. 3. Asses...

  13. Efectos sobre la generación de empleo del Sistema de Atención a la Dependencia. Una estimación para Castilla y León

    Directory of Open Access Journals (Sweden)

    González González, Yolanda

    2008-01-01

    Full Text Available El objetivo principal de este trabajo es tratar de cuantificar las repercusiones que sobre la creación de empleo durante el período 2005-2015 puede tener la implantación efectiva del Sistema de Autonomía y Atención a la Dependencia (SAAD en el ámbito de la Comunidad Autónoma de Castilla y León, que es una de las regiones con mayor incidencia del fenómeno del envejecimiento de la población y en la que, en consecuencia, se espera un notable incremento de la población anciana dependiente en las próximas décadas. La metodología seguida parte del tratamiento de la información recogida en la Encuesta sobre Discapacidades, Deficiencias y Estados de Salud para Castilla y León. La estimación de los potenciales efectos sobre la creación de empleo se obtiene considerando las hipótesis recogidas en el Libro Blanco de la Dependencia, combinadas con un estudio econométrico de elección discreta (probit de la Encuesta de Población Activa y de la Encuesta de Apoyo Informal a los Mayores en España. Se realiza igualmente un análisis de sensibilidad de la variable creación de empleo ante pequeñas variaciones en algunos de los parámetros utilizados en el estudio.

  14. Transcatheter Arterial Embolization of Cystic Artery Pseudoaneurysm in Acalculous Cholecystitis: A Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Hyung Ook; Lee, Young Hwan [Dept. of Radiology, Daegu Catholic University College of Medicine, Daegu (Korea, Republic of); Kim, Young Hwan [Dept. of Diagnostic Radiology, Dongsan Medical Center, Keimyung University College of Medicine, Daegu (Korea, Republic of)

    2011-04-15

    A pseudoaneurysm of the cystic artery is a rare complication of cholecystitis, and is manifested by hemobilia or hematemesis. An early diagnosis is required for the successful treatment by cholecystectomy and ligation of the cystic artery. Herein, we report a case of a pseudoaneurysm of the cystic artery diagnosed by color Doppler ultrasonography and CT, and successfully treated by transcatheter arterial embolization with N-butyl cyanoacrylate in a high-risk surgical patient.

  15. Percutaneous coronary intervention versus coronary-artery bypass grafting for severe coronary artery disease

    OpenAIRE

    Serruys, Patrick; Morice, Marie-Claude; Kappetein, Arie Pieter; Colombo, Antonio; Holmes, David; Mack, Michael; Stahle, E.; Feldman, Ted; Brand, Marcel, van den; Bass, Eric; Dyck, Nic; Leadly, Katrin; Dawkins, Keith; Mohr, Friedrich

    2009-01-01

    textabstractBACKGROUND Percutaneous coronary intervention (PCI) involving drug-eluting stents is increasingly used to treat complex coronary artery disease, although coronary-artery bypass grafting (CABG) has been the treatment of choice historically. Our trial compared PCI and CABG for treating patients with previously untreated three-vessel or left main coronary artery disease (or both). METHODS We randomly assigned 1800 patients with three-vessel or left main coronary artery disease to und...

  16. Arterial Switch Operation in Patients with Intramural Coronary Artery: Early and Mid-term Results

    OpenAIRE

    Kim, HyungTae; Sung, Si Chan; Kim, Si-Ho; Chang, Yun Hee; Ahn, Hyo Yeong; Lee, Hyoung Doo

    2011-01-01

    Background The intramural coronary artery has been known as a risk factor for early death after an arterial switch operation (ASO). We reviewed the morphological characteristics and evaluated the early and mid-term results of ASO for patients with an intramural coronary artery. Materials and Methods From March 1994 to September 15th 2010, 158 patients underwent ASO at Dong-A and Pusan National University Hospitals for repair of transposition of the great arteries and double outlet right ventr...

  17. Prognostic value of changes in arterial stiffness in men with coronary artery disease

    OpenAIRE

    Iana A Orlova; Eradzh Yu Nuraliev; Yarovaya, Elena B; et al

    2010-01-01

    Iana A Orlova, Eradzh Yu Nuraliev, Elena B Yarovaya, Fail T AgeevOutpatient department, Russian Cardiology Research Center, Moscow, Russian Federation Background: Men with coronary artery disease (CAD) have been shown to have enhanced arterial stiffness. Arterial function may change over time according to treatment, but the prognostic value of these changes has not been investigated.Objectives: The aim of the present study was to assess whether an improvement in large artery rigidity in respo...

  18. PERSPECTIVAS INFANTILES SOBRE LA TERRITORIALIDAD

    Directory of Open Access Journals (Sweden)

    NOELIA ENRIZ

    2009-12-01

    Full Text Available In this paper we propose a different approach to children's ideas about the geographical area in the particular context of the Mbyá Guarani population, from Misiones (Argentine. The territorial fragility, that is exposed to the indigenous people in Argentina aremanifested daily in several areas. Mbyá population, has been crossed by the boundaries of national states of Paraguay, Brazil and Argentina. The sedentary and enclosures land processes in different states, have prompted changes in the logic of subsistence, housing and community organization. In Misiones province case, bureaucratic accreditation of land titles is postponed, the state is not committed to the realization of this right.RESUMEN: En este trabajo nos proponemos un acercamiento a las diversas ideas infantiles sobre el territorio habitado, en el contexto particular de la población mbyá guaraní de Misiones. La fragilidad territorialidad a la que es expuesta la población indígena en Argentina se manifiestan cotidianamente en diversas áreas. La población mbyá, ha sido surcada por los límites de los estados nacionales de Paraguay, Brasil y Argentina. La sedentarización y los cercamientos de tierras en los diferentes estados, han impulsado transformaciones de las lógicas de subsistencia, de habitación y organización comunitaria. En el caso de la provincia de Misiones la acreditación burocrática de los títulos de tierras se encuentra aplazada, el estado no se compromete con la concreción de este derecho.

  19. Consideraciones preliminares sobre la credibilidad

    Directory of Open Access Journals (Sweden)

    Fernando Verdugo

    2004-01-01

    Full Text Available A modo de introducción al Seminario Interno de Profesores de la Facultad de Teología de la PUC, el autor recuerda, en primer lugar, lo que suele entenderse por "credibilidad" y, también, algunos de los criterios generales por los cuales algo o alguien adquiere la calidad de creíble (el que sea razonable, relevante o significativo, capaz de producir gozo estético, etc.. Luego, en la parte más extensa, el autor vuelve a llamar la atención sobre la necesidad de atender a los condicionamientos culturales de la fe cristiana. La fe, al igual que toda experiencia humana, está culturalmente mediada. Tomar conciencia de ese hecho y asumir las consecuencias metodológicas es indispensable para una teología que quiere poner atención a los desafíos actuales y contribuir así a la credibilidad del cristianismoThis article reprints the introductory session to the internal seminar of lecturers from the Faculty of Theology of the UC. In the first place, the author sums up what is usually understood by `credibility' and the general criteria through which something or someone gains credibility (being reasonable, relevant or significant, capable of producing aesthetic pleasure. Then the author deals at length with the need to take notice of the cultural conditionings of the Christian faith. The faith, the same as any other human experience, is culturally mediated. It is crucial for theology to become aware of this fact and come to terms with its methodological consequences, if it wants to face current challenges and so contribute to the credibility of Christianity

  20. Continuous blood gas monitoring in femoral arteries

    Science.gov (United States)

    Schlain, Les A.; Spar, Steven M.; Dellinger, Bart

    1995-05-01

    Continuous intra-arterial blood gas monitoring is a potentially valuable tool in the surgical and intensive care arenas. Patient oxygenation and acid base status can change rapidly and without warning. The ability to monitor pHa, PaCO2 and PaO2 in arterial blood will be a major medical advance for the anesthesiologist and intensivist. Intra-arterial blood gas sensors are typically placed in radial arteries. In certain patient populations accurate monitoring is not possible in radial arteries due to arterial environmental factors such as hypotension, vasoconstriction and atherosclerotic disease. These same factors can make radial cannulation difficult resulting in traumatic catheter insertion, thereby further compromising flow conditions. In situations where radial artery flow is expected to be compromised, selecting a large vessel for sensor placement is desirable. We report an initial feasibility study of our blood gas monitoring system using the femoral artery as the sensing site. Clinical results are presented as well as potential advantages and disadvantages associated with monitoring in the femoral artery.

  1. Arterial anatomy of the hallucal sesamoids.

    Science.gov (United States)

    Rath, Bjoern; Notermans, Hans-Peter; Frank, Daniel; Walpert, Juergen; Deschner, James; Luering, Christian M; Koeck, Franz X; Koebke, Juergen

    2009-09-01

    The aim of this study was to analyze the arterial supply of the sesamoid bones of the hallux. Twenty-two feet from adult cadavers were injected with epoxide resin or an acrylic polymer in methyl methacrylate (Acrifix) and subsequently processed by two slice plastination methods and the enzyme maceration technique. Afterwards, the arterial supply of the sesamoid bones was studied. The first plantar metatarsal artery provided a medial branch to the medial sesamoid bone. The main branch of the first plantar metatarsal artery continued its course distally along the lateral side of the lateral sesamoid and supplied it. The supplying arteries penetrated the sesamoid bones on the proximal, plantar, and distal sides. The analysis and cataloging of the microvascular anatomy of the sesamoids revealed the first plantar metatarsal artery as the main arterial source to the medial and lateral sesamoid bones. In addition, the first plantar metatarsal artery ran along the lateral plantar side of the lateral sesamoid bone, suggesting that this artery is at increased risk during soft-tissue procedures such as hallux valgus surgery. PMID:19644971

  2. Digital artery pseudoaneurysm in a patient with previous radial artery harvest

    OpenAIRE

    Plant, Mathew A; Panchapakesan, Vivek

    2011-01-01

    A post-traumatic pseudoaneurysm in the ulnar digital artery of the thumb in a patient with compromised vascularity due to a previous harvest of the ipsilateral radial artery is reported. To the authors’ knowledge, the present case is the first such description of a pseudoaneurysm in the digital artery of a patient with compromised collateral blood flow.

  3. Electronic database of arterial aneurysms

    Directory of Open Access Journals (Sweden)

    Fabiano Luiz Erzinger

    2014-12-01

    Full Text Available Background:The creation of an electronic database facilitates the storage of information, as well as streamlines the exchange of data, making easier the exchange of knowledge for future research.Objective:To construct an electronic database containing comprehensive and up-to-date clinical and surgical data on the most common arterial aneurysms, to help advance scientific research.Methods:The most important specialist textbooks and articles found in journals and on internet databases were reviewed in order to define the basic structure of the protocol. Data were computerized using the SINPE© system for integrated electronic protocols and tested in a pilot study.Results:The data entered onto the system was first used to create a Master protocol, organized into a structure of top-level directories covering a large proportion of the content on vascular diseases as follows: patient history; physical examination; supplementary tests and examinations; diagnosis; treatment; and clinical course. By selecting items from the Master protocol, Specific protocols were then created for the 22 arterial sites most often involved by aneurysms. The program provides a method for collection of data on patients including clinical characteristics (patient history and physical examination, supplementary tests and examinations, treatments received and follow-up care after treatment. Any information of interest on these patients that is contained in the protocol can then be used to query the database and select data for studies.Conclusions:It proved possible to construct a database of clinical and surgical data on the arterial aneurysms of greatest interest and, by adapting the data to specific software, the database was integrated into the SINPE© system, thereby providing a standardized method for collection of data on these patients and tools for retrieving this information in an organized manner for use in scientific studies.

  4. Intracranial Large Artery Occlusive Disease

    Institute of Scientific and Technical Information of China (English)

    Wong KS; Li H; Kay R

    2000-01-01

    @@Intracranial large artery stenosis is the most commonly found vascular lesion in stroke patient of Chinese, Hispanic and African ancestry. There .have been few studies on the epidemiology, pathophysiology, treatment and prognosis of this important disease. Recent advances in technology provide safe and reliable investigation for studying large number of patients. Transcranial Doppler is an easily accessible, cheap and reliable method to diagnose intracranial stenosis. It is suitable for screening for and monitoring the progress of intracranial stenosis. Magnetic resonance angiography and CT angiography provide the morphology of lumenal stenosis but are less accessible.

  5. Coronary Artery Bypass Graft Surgery (Beyond the Basics)

    Science.gov (United States)

    ... for people with coronary heart disease is called "percutaneous coronary intervention" (PCI), or "stenting." This involves using a flexible ... artery disease: Coronary artery bypass graft surgery versus percutaneous coronary intervention Coronary artery bypass grafting in patients with cerebrovascular ...

  6. Genetic determinants of arterial stiffness: Results from the Rotterdam Study

    NARCIS (Netherlands)

    M.P.S. Sie (Mark)

    2007-01-01

    textabstractArterial stiffness increases with age. It is also associated with various diseases, such as diabetes mellitus and hypertension. Recently, arterial stiffness has also been found to independently predict cardiovascular disease. The pathogenesis of arterial stiffness, however, has n

  7. Reimplantation of left coronary artery from pulmonary artery in a 65-year-old.

    Science.gov (United States)

    Mitchell, Julia; Lemaire, Anaïs; Henaine, Roland; Metton, Olivier; Ninet, Jean

    2016-01-01

    Anomalous left coronary artery to the pulmonary artery is a rare pathology with a mortality rate of 90% in the first year of life, directly related to left ventricular function and coronary perfusion, although several adult cases have been reported. Surgical correction consists of ligation of the anomalous left coronary artery associated with coronary artery bypass grafting. We describe the exceptional case of a 65-year-old woman who underwent reimplantation of the left coronary artery in the anatomical position without bridging. PMID:24948780

  8. Persistent primitive trigeminal artery associated with monocular blindness and external carotid-vertebral artery anastomosis

    Science.gov (United States)

    Yin, Suo; Zhang, Hong T.; Zhang, Dao P.; Zhang, Shu L.

    2015-01-01

    In this paper, we present 2 rare cases of persistent embryonic anastomoses. In one case, the patient presented with persistent trigeminal artery along with multiple foci of cerebral infarction as well as central retinal artery thrombosis. In the other case, the patient had direct anastomosis of the vertebral artery with ipsilateral external carotid artery as well as pontine infarction, aneurysm, and unilateral hypoplasia of the vertebral artery. The findings in these cases may shed light on the clinical presentation of such persistent anastomoses and aid their detection in clinical settings. PMID:25935186

  9. Persistent primitive trigeminal artery associated with monocular blindness and external carotid-vertebral artery anastomosis.

    Science.gov (United States)

    Yin, Suo; Zhang, Hong T; Zhang, Dao P; Zhang, Shu L

    2015-05-01

    In this paper, we present 2 rare cases of persistent embryonic anastomoses. In one case, the patient presented with persistent trigeminal artery along with multiple foci of cerebral infarction as well as central retinal artery thrombosis. In the other case, the patient had direct anastomosis of the vertebral artery with ipsilateral external carotid artery as well as pontine infarction, aneurysm, and unilateral hypoplasia of the vertebral artery. The findings in these cases may shed light on the clinical presentation of such persistent anastomoses and aid their detection in clinical settings. PMID:25935186

  10. Anomalous Right Coronary Artery Originating from the Left Main Coronary Artery

    Directory of Open Access Journals (Sweden)

    Y Mahmmody

    2009-12-01

    Full Text Available A 50–year–old woman presented to our center with effort angina. Angiography showed normal left main coronary artery, normal left circumflex (LCX artery and critical discrete lesion (99% stenosis in mid part of left anterior descending (LAD artery with good distal flow. However, the right coronary artery (RCA originated from the left main coronary artery. There was no evidence of external compression of the proximal portion of the RCA during systole or diastole. Consult with cardiac surgeon was done but the patient refused from the operation.

  11. Abnormal origin of the ophthalmic artery from the anterior cerebral artery: Neuroradiological and intraoperative findings

    International Nuclear Information System (INIS)

    A 7-year old male child with an abnormal ophthalmic artery arising from the A1 segment of the anterior cerebral artery is described. The patient suffered growth inhibition which was thought to be caused by a craniobasal cystic lesion affecting the hypothalamus. Preoperative angiograms revealed no vascular abnormalities. The right ophthalmic artery, however, could not be identified. During resection of a large arachnoid cyst the ophthalmic artery was found to arise from the A1 segment of the anterior cerebral artery. To the best of our knowledge, this exact anomaly has not previously been reported. The clinical, neuroradiological and intraoperative findings are presented. (orig.)

  12. Brachytherapy in coronary artery disease

    Energy Technology Data Exchange (ETDEWEB)

    Song, Ho Chun [Chonnam National University Medicine School, Gwangju (Korea, Republic of)

    2006-04-15

    Coronary artery disease is a leading cause of morbidity and mortality across the world. Percutaneous coronary intervention has become the major technique of revascularization. However, restenosis remains a major limitation of this procedure. Recently the need for repeat intervention due to restenosis, the most vexing long-term failure of percutaneous coronary intervention, has been significantly reduced owing to the introduction to two major advances, intracoronary brachytherapy and the drug-eluting stents, intracoronary brachytherapy has been employed in recent years to prevent restenosis lesions with effective results, principally in in-stent restenosis. Restenosis is generally considered as an excessive form of normal wound healing divided up in processes: elastic recoil, neointimal hyperplasia, and negative vascular remodeling. Restenosis has previously been regarded as a proliferative process in which neointimal thickening, mediated by a cascade of inflammatory mediators and other factors, is the key factor. Ionizing radiation has been shown to decrease the proliferative response to injury in animal models of restenosis. Subsequently, several randomized, double-blind trials have demonstrated that intracoronary brachytherapy can reduce the rates to both angiographic restenosis and clinical event rates in patients undergoing percutaneous coronary intervention for in-stent restenosis. Some problems, such as late thrombosis and edge restenosis, have been identified as limiting factors of this technique. Brachytherapy is a promising method of preventing and treating coronary artery restenosis.

  13. Drugs induced pulmonary arterial hypertension.

    Science.gov (United States)

    Seferian, Andrei; Chaumais, Marie-Camille; Savale, Laurent; Günther, Sven; Tubert-Bitter, Pascale; Humbert, Marc; Montani, David

    2013-09-01

    Pulmonary arterial hypertension (PAH) is a rare disorder characterized by progressive obliteration of the pulmonary microvasculature, resulting in elevated pulmonary vascular resistance and premature death. According to the current classification, PAH can be associated with exposure to certain drugs or toxins, particularly appetite suppressant drugs, such as aminorex, fenfluramine derivatives and benfluorex. These drugs have been confirmed to be risk factors for PAH and were withdrawn from the market. The supposed mechanism is an increase in serotonin levels, which was demonstrated to act as a growth factor for the pulmonary arterial smooth muscle cells. Amphetamines, phentermine and mazindol were less frequently used but are also considered as possible risk factors for PAH. Dasatinib, a dual Src/Abl kinase inhibitor, used in the treatment of chronic myelogenous leukaemia was associated with cases of severe PAH, in part reversible after its withdrawal. Recently several studies raised the potential endothelial dysfunction that could be induced by interferon, and few cases of PAH have been reported with interferon therapy. Other possible risk factors for PAH include: nasal decongestants, like phenylpropanolamine, dietary supplement - L-Tryptophan, selective serotonin reuptake inhibitors, pergolide and other drugs that could act on 5HT2B receptors. Interestingly, PAH remains a rare complication of these drugs, suggesting possible individual susceptibility and further studies are needed to identify patients at risk of drugs induced PAH. PMID:23972547

  14. Impacto psicosocial del Downsizing sobre los trabajadores

    Directory of Open Access Journals (Sweden)

    CRISTÓBAL JIMÉNEZ JIMÉNEZ

    2006-01-01

    Full Text Available El presente trabajo intenta ahondar en lo expuesto en un trabajo anterior sobre el downsizing como fenómeno psicosociolaboral, analizando su impacto psicosocial. En primer lugar, se exponen los diferentes niveles de comprensión de este fenómeno, para pasar al análisis de los efectos y consecuencias sobre las personas, diferenciando entre dos tipos de víctimas: a los que se van de la organización (despedidos y b los que se quedan en la organización (supervivientes, prestando especial atención a lo que se conoce ya como el "síndrome del superviviente", para lo que se aporta información sobre sus características, las variables moderadoras que intervienen y los modelos explicativos del mismo. Se termina con algunas consideraciones sobre la actualidad y relevancia de dicho síndrome sugiriendo la idea de que el fenómeno del downsizing y sus consecuencias sobre las personas nos enfrenta a lo que podríamos ya considerar como un nuevo síndrome de la Psicopatología Laboral: el síndrome del superviviente.

  15. DISERTACIÓN SOBRE JUSTICIA Y EQUIDAD

    Directory of Open Access Journals (Sweden)

    Sayuri P. Tamura M.

    2001-01-01

    Full Text Available «Disertación sobre equidad y justicia» es básicamente una respuesta a una inquietud en particular que yo tenía sobre las distintas posiciones que existen sobre estos dos temas y cómo definir cuál es la más acertada. Hice una descripción del punto de vista de Amartya Sen –la violación de los derechos sobre la propiedad privada es justificable si evitan las hambrunas2– frente al de Robert Nozick –la propiedad privada es un derecho fundamental y como tal debe ser respetado3–, sin embargo, aunque ambos enfoques son totalmente contrarios tienen mucho sentido, por lo cual es bastante difícil decidirse por uno en particular. Fue de esta forma, enfrentando sus opiniones, que yo logré desarrollar una posición frente a estas dos perspectivas, y así dar mi opinión al DISERTACIÓN SOBRE JUSTICIA Y EQUIDAD SAYURI P. TAMURA M. Estudiante de Economía y Negocios Internacionales de la Universidad ICESI. respecto. Al final, llegué a una conclusión, que aunque no es la más original y tampoco es la única, tiene mucho sentido y seguramente de ser posible, la situación del país podría cambiar para bien.

  16. An aberrant right lateral branch from right internal thoracic artery

    OpenAIRE

    Salve VM; Ratnaprabha C

    2010-01-01

    The internal thoracic artery is the largest artery of the thoracic wall. The internal thoracic artery is often mobilized for coronary artery bypass grafting. During routine dissection (MBBS Batch 2009-2010) of a middle aged male cadaver at Dr. Pinnamaneni Siddhartha Institute of Medical Sciences & Research Foundation, Gannavaram, (INDIA); an aberrant right lateral branch from right internal thoracic artery was found. It arose from right internal thoracic artery behind right first rib. It ran ...

  17. Hypertensive encephalopathy complicating transplant renal artery stenosis.

    OpenAIRE

    McGonigle, R J; Bewick, M.; Trafford, J. A.; Parsons, V

    1984-01-01

    A 26-year-old female diabetic patient developed hypertensive encephalopathy with gross neurological abnormalities complicating renal artery stenosis of her transplant kidney. The elevated blood pressure was unresponsive to medical treatment. Surgical correction of the stenoses in the renal artery cured the hypertension and renal failure and led to the patient's complete recovery.

  18. Megadolicho vascular malformation of the intracranial arteries.

    Science.gov (United States)

    Lodder, J; Janevski, B; van der Lugt, P J

    1981-01-01

    A patient is presented suffering a hemiparesis. Megadolicho-vascular malformation of the intracranial part of the internal carotid arteries and some of its branches and of the basilar artery was suggested by CT and confirmed by angiography. The value of CT compared with angiography in relation to intracranial megadolicho vascular malformations is discussed. PMID:6273040

  19. Totally thrombosed giant anterior communicating artery aneurysm

    Directory of Open Access Journals (Sweden)

    V R Roopesh Kumar

    2015-01-01

    Full Text Available Giant anterior communicating artery aneurysmsarerare. Apatient presented with visual dysfunction, gait ataxia and urinary incontinence. MRI showed a giant suprasellar mass.At surgery, the lesion was identified as being an aneurysm arising from the anterior communicating artery.The difficulty in preoperative diagnosis and relevant literature are reviewed.

  20. Minimal Invasive Coronary Artery Fistula Ligation

    OpenAIRE

    Mitropoulos, Fotios A.; Kanakis, Meletios A.; Chatzis, Andrew; Contrafouris, Constantinos; Sofianidou, Ioanna A.; Lioulias, Achilleas G.

    2014-01-01

    A coronary artery fistula was surgically ligated in a 38-year-old woman via a left anterior mini-thoracotomy without the use of cardiopulmonary bypass. In selected cases, this surgical approach can provide an excellent surgical exposure for coronary artery fistula ligation. It also offers an excellent cosmetic result and shorter hospital stay.

  1. Goldenhar Syndrome Associated with Extensive Arterial Malformations

    Directory of Open Access Journals (Sweden)

    Renee Frances Modica

    2015-01-01

    Full Text Available Goldenhar Syndrome is characterized by craniofacial, ocular and vertebral defects secondary to abnormal development of the 1st and 2nd branchial arches and vertebrae. Other findings include cardiac and vascular abnormalities. Though these associations are known, the specific anomalies are not well defined. We present a 7-month-old infant with intermittent respiratory distress that did not improve with respiratory interventions. Echocardiogram suggested a double aortic arch. Cardiac CT angiogram confirmed a right arch and aberrant, stenotic left subclavian artery, dilation of the main pulmonary artery, and agenesis of the left thyroid lobe. Repeat echocardiograms were concerning for severely dilated coronary arteries. Given dilation, a rheumatologic workup ensued, only identifying few weakly positive autoantibodies. Further imaging demonstrated narrowing of the aorta below the renal arteries and extending into the common iliac arteries and proximal femoral arteries. Given a physical exam devoid of rheumatologic findings, only weakly positive autoantibodies, normal inflammatory markers, and presence of the coronary artery dilation, the peripheral artery narrowings were not thought to be vasculitic. This case illustrates the need to identify definitive anomalies related to Goldenhar Syndrome. Although this infant’s presentation is rare, recognition of specific vascular findings will help differentiate Goldenhar Syndrome from other disease processes.

  2. The design of a reflectionless arterial prosthesis

    OpenAIRE

    Kol, Guy Richard; Woafo, Paul

    2010-01-01

    We propose a new technique to characterize a reflectionless arterial prosthesis. The corresponding transmission and reflection coefficients are determined from the geometric and the elastic properties of the arterial wall, and the interaction between the latter and the prosthesis are studied accordingly.

  3. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... and we also like that aspect of this new type of surgery. The internal mammary artery is ... when it’s needed. Internal mammary artery. That’s a new word. That’s a new word, huh? Naked or ...

  4. A rare variant of common arterial trunk.

    OpenAIRE

    Rubay, J E; Macartney, F J; Anderson, R H

    1987-01-01

    A 13 day old baby was admitted to hospital with multiple abnormalities, increasing cyanosis, and cardiac failure. Cardiac catheterisation was performed on the day of admission and he died shortly after the procedure. A rare variant of common arterial trunk, in which the pulmonary arteries arose directly from the underside of the aortic arch, was found at necropsy.

  5. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... as doctors use for this operation is “TECAB,” meaning “Totally Endoscopic Coronary Artery Bypass.” This procedure will ... make sure his vessels are able for bypass, meaning doing the CT angiograph for the peripheral arteries. ...

  6. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... coronary artery bypass grafting procedure using robotics. We call this operation a “TECAB,” “Totally Endoscopic Coronary Artery ... see 2 the heart beating behind what we call the “pericardium,” the sack where the heart is ...

  7. Abdominal CT in acute arterial pathology

    International Nuclear Information System (INIS)

    The abdominal arterial pathology as studied by CT imagings is reviewed. The illustrated morphology of aortic aneurysms complications (arterial embolism, dissection and arteriosclerotic ulcer ) are studied. The signs that lead to diagnosis are assessed and the major points on which to base a correct radiological study are reviewed

  8. Radial artery approach for transcatheter arterial chemoembolization in patients with hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Ryu, Seung Hun; Shim, Hyung Jin; Kwak, Byung Kook; Kim, Gi Hyun; Lee, Hwa Yeon; Song, In Sup; Kim, Yang Soo [College of Medicine, Chungang Univ., Seoul (Korea, Republic of)

    2002-03-01

    To evaluate the feasibility and usefulness of the transradial approach for intra-arterial chemoembolization therapy in patients with hepatocellular carcinomas. Twenty-nine patients with hepatocellular carcinoma who underwent intra-arterial chemoembolization via the radial artery approach were involved in this study. All underwent Allen's test to check ulnar arterial patency. In all cases, we used the radial approach hepatic artery (RHA) catheter designed by ourselves, evaluating the selection ability of the hepatic artery using an RHA cathter, the number of punctures, the procedure time, and compression time at the puncture site as well as complications occurring during and after the procedure. Except for three in which puncture failure, brachial artery variation or hepatic artery variation occurred, all procedures were successful. The mean number of punctures was 3.5 and the average duration of the whole procedure was one and half hours. This gradually decreased as the number of procedures increased. The average duration at a compression of puncture site was 12 minutes. There were no major complications. Minor complications included minimal intimal dissection of the radial artery (3.8%), reversible vasospasm of the radial artery (7.7%), hematoma at a puncture site (7.7%) and transient neurologic deficit (3.8%). The transradial approach using an RHA catheter for intra-arterial chemoembolization theraphy in patients with hepatocellular carcinomas was technically feasible, with acceptable levels of safety. It may be a good alternative to absolute bed rest with a sand bag after the femoral approach.

  9. Clinical significance of hepatic artery variations originating from the superior mesenteric artery in abdominal tumor surgery

    Institute of Scientific and Technical Information of China (English)

    HUANG Yuan; LIU Chao; LIN Jin-ling

    2013-01-01

    Background Hepatic artery variations are frequent clinical occurrences.The aim of this study was to investigate the characteristic course of variant hepatic arteries originating from the superior mesenteric artery for the purpose of providing instructions for abdominal tumor surgery.Methods The course of variant hepatic arteries originating from the superior mesenteric artery was studied in 400 patients with liver cancer confirmed by digital subtraction angiography (DSA) and multi-slice spiral computed tomography angiography (MSCTA),and 86 patients with gastric cancer confirmed by preoperative MSCTA between June 2008 and June 2010 in the First Affiliated Hospital of Guangxi Medical University.Results Hepatic artery variations originating from the superior mesenteric artery were noticed in 49 liver cancer patients and 14 gastric cancer patients (total 63 cases),with a variation rate of 12.96%,including two cases (3.17%) where the hepatic arteries ran along the anterior pancreas,and 61 cases (96.83%) where the hepatic arteries ran along the posterior pancreas.Conclusions Hepatic artery variations originating from the superior mesenteric artery present as two types:the pre-pancreas type and the post-pancreas type with the latter predominating.This finding is of clinical significance in abdominal tumor surgeries where clearance of portal lymph nodes is needed.

  10. Catheterization and embolization of a replaced left hepatic artery via the right gastric artery through the anastomosis: a case report

    Directory of Open Access Journals (Sweden)

    Miyazaki Masaya

    2011-08-01

    Full Text Available Abstract Introduction Conversion of multiple hepatic arteries into a single vascular supply is a very important technique for repeat hepatic arterial infusion chemotherapy using an implanted port catheter system. Catheterization of a replaced left hepatic artery arising from a left gastric artery using a percutaneous catheter technique is sometimes difficult, despite the recent development of advanced interventional techniques. Case presentation We present a case of a 70-year-old Japanese man with multiple hepatocellular carcinomas in whom the replaced left hepatic artery arising from the left gastric artery needed to be embolized. After several failed procedures, the replaced left hepatic artery was successfully catheterized and embolized with a microcatheter and microcoils via the right gastric artery through the anastomosis. Conclusion A replaced left hepatic artery arising from a left gastric artery can be catheterized via a right gastric artery by using the appropriate microcatheter and microguidewires, and multiple hepatic arteries can be converted into a single supply.

  11. Fusiform aneurysm of a persistent trigeminal artery associated with rare intracranial arterial variations and subarachnoid hemorrhage.

    Science.gov (United States)

    Kimball, David; Ples, Horia; Kimball, Heather; Miclaus, Gratian D; Matusz, Petru; Loukas, Marios

    2015-01-01

    The trigeminal artery is one of four primitive anastomoses between the internal carotid artery and vertebrobasilar system that regresses in the sixth week of fetal development. A persistent trigeminal artery (PTA) is generally an incidental finding but may also be associated with intracranial vascular pathologies such as aneurysms, arteriovenous malformations, and cranial nerve compression syndromes. We present an extremely rare case of a right PTA with an associated bleeding fusiform aneurysm located in the carotidian (lateral) part of the PTA. In addition, this rare anatomic variation was associated with bilateral absence of the posterior communicating arteries, a left posterior cerebral artery originating from the left internal carotid artery, and agenesis of the A1 segment of the left anterior cerebral artery. PMID:25053265

  12. Basilar artery aneurysm at a persistent trigeminal artery junction. A case report and literature review.

    Science.gov (United States)

    Aguiar, G B; Conti, M L M; Veiga, J C E; Jory, M; Souza, R B

    2011-09-01

    The trigeminal artery is an anastomosis between the embryonic precursors of the vertebrobasilar and carotid systems, and may persist into adult life. The association of the persistent primitive trigeminal artery (PTA) with cerebral aneurysm is well documented in the literature and, in general, aneurysms are located in the anterior circulation. We describe a patient who presented with a panencephalic Fisher III subarachnoid hemorrhage due to rupture of an intracranial aneurysm. Digital arteriography showed a saccular aneurysm in the middle third of the basilar artery, adjacent to the junction with a persistent trigeminal artery. She was submitted to endovascular treatment with embolization of the basilar artery aneurysm with coils. Aneurysms at the PTA junction with the basilar artery are rare. This paper describes a case of PTA associated with an aneurysm in the basilar artery at PTA junction and briefly reviews the literature. PMID:22005697

  13. Bifurcating stents in the pulmonary arteries: A novel technique to relieve bilateral branch pulmonary artery obstruction.

    Science.gov (United States)

    Narayan, Hari K; Glatz, Andrew C; Rome, Jonathan J

    2015-10-01

    Balloon angioplasty and stent placement in close proximity to the bifurcation of the branch pulmonary arteries can be challenging. Multiple approaches have been previously described, though none of these approaches both treats bilateral proximal branch pulmonary artery stenosis and provides an anchor for a transcatheter pulmonary valve replacement. We report a novel approach that involves serial stent placement and balloon dilation through the struts of the stent in each pulmonary artery, along with balloon expansion of the proximal portion of the stents to the diameter of the main pulmonary artery. In the two cases we describe, this strategy resulted in significant relief of branch pulmonary artery obstruction without compromising the anatomy of the main pulmonary artery segment. This technique can be an effective way to alleviate stenoses of the bilateral proximal branch pulmonary arteries and provides a landing zone for a future transcatheter pulmonary valve. PMID:26256829

  14. Description of the celiac artery in domestic pigeons (Columba livia

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    Cibele Geeverghese

    2012-06-01

    Full Text Available This paper aimed to define the origin and distribution of the celiac artery and its collateral branches in 15 fowls from the Columba livia species, which were obtained from the Zoonosis Control Center of Brasilia, Brazil. In order to mark the arterial system of the specimens, the left brachiocephalic trunk was canullated and a colored water-latex solution was injected there. Afterwards, fowls were fixed in a 10% v/v formaldehyde solution and dissected with appropriate equipment, presenting the results described in this paper. The celiac artery originated from the ventral face of the descendent aorta. The first collateral branch arose from the celiac artery itself, forming the esophageal artery. Then, the celiac artery has bifurcated into two branches, named left and right branches of the celiac artery. The left branch emitted the proventricular ventral artery, followed by the splenic arteries, proventricular dorsal artery, and the left hepatic artery. The left branch has bifurcated into two branches, known as ventral and left gastric arteries. The right branch emitted the right hepatic artery, followed by the ileal artery and the right gastric artery. Finally, the right branch turned into the pancreaticoduodenal artery. Our findings showed a great similarity with the avian lineages of the Gallus gallus species, except for the lack of ileocecal artery, cystic branches, and dorsal gastric artery.

  15. Minimum training requirement in ultrasound imaging of peripheral arterial disease

    DEFF Research Database (Denmark)

    Eiberg, J P; Hansen, M A; Grønvall Rasmussen, J B;

    2008-01-01

    To demonstrate the minimum training requirement when performing ultrasound of peripheral arterial disease.......To demonstrate the minimum training requirement when performing ultrasound of peripheral arterial disease....

  16. Arterial hypertension and chronic liver disease

    DEFF Research Database (Denmark)

    Henriksen, Jens Henrik Sahl; Møller, S

    2005-01-01

    This review looks at the alterations in the systemic haemodynamics of patients with chronic liver disease (cirrhosis) in relation to essential hypertension and arterial hypertension of renal origin. Characteristic findings in patients with cirrhosis are vasodilatation with low overall systemic......, calcitonin gene-related peptide, nitric oxide, and other vasodilators, and is most pronounced in the splanchnic area. This provides an effective (although relative) counterbalance to raised arterial blood pressure. Subjects with arterial hypertension (essential, secondary) may become normotensive during the...... development of chronic liver disease, and arterial hypertension is rarely manifested in patients with cirrhosis, even in those with renovascular disease and high circulating renin activity. There is much dispute as to the understanding of homoeostatic regulation in cirrhotic patients with manifest arterial...

  17. [Popliteal artery entrampment: report of one case].

    Science.gov (United States)

    Parra, Juan; Corvalán, Felipe; Ibáñez, Fernando; Bianchi, Víctor; Bastías, Waldo; Salas, Cristian; Cam, Alfredo; Lamarca, Andrés

    2006-02-01

    Popliteal artery entrampment is a rare condition, occurring in young subjects, that causes ischemia of the extremity. The anatomical background is the compression or occlussion of the popliteal artery caused by forced plantar or dorsal flexion. We report a 32 year-old sportsman who presented with gangrene of the right first toe and a history of three months of progressive claudication. The Ankle-Brachial index and pulse volume curve registries showed a severe ischemia below the knee. Angiography showed a medial deviation of the popliteal artery associated to stenosis and aneurysm formation. A CT scan of the contralateral artery was normal. The patient was operated using a posterior approach, performing a reverse saphenous vein bypass graft and excising the popliteal artery. The postoperative period was uneventful. PMID:16554929

  18. Value of scintiangiography in arterial disease

    International Nuclear Information System (INIS)

    Arterial visualization using the gamma camera was achieved by peripheral intravenous injection of technetium pertechnetate Tc 99m 253 times in 200 patients. This technique, which successfully images the arterial tree to the level of the wrist and ankle, was validated by blind comparison of the scintiangiograms with contrast arteriograms or surgical findings or both in 93 studies. Although scintiangiography has less resolution than contrast arteriography, it provides quantitative and other important supplementary information in the diagnosis and management of patients with arterial disease. Scintiangiography has accurately diagnosed arterial occlusions (atherosclerotic, traumatic, and embolic), true and false aneurysms, and arterial stenoses. Patients sustaining trauma to the extremities may be evaluated by scintiangiography as a screening technique. Postoperatively, scintiangiography has replaced contrast arteriography for assessing patency of grafts and completeness of thromboembolectomy and for the long-term follow-up of these patients

  19. Pulse Wave Propagation in the Arterial Tree

    Science.gov (United States)

    van de Vosse, Frans N.; Stergiopulos, Nikos

    2011-01-01

    The beating heart creates blood pressure and flow pulsations that propagate as waves through the arterial tree that are reflected at transitions in arterial geometry and elasticity. Waves carry information about the matter in which they propagate. Therefore, modeling of arterial wave propagation extends our knowledge about the functioning of the cardiovascular system and provides a means to diagnose disorders and predict the outcome of medical interventions. In this review we focus on the physical and mathematical modeling of pulse wave propagation, based on general fluid dynamical principles. In addition we present potential applications in cardiovascular research and clinical practice. Models of short- and long-term adaptation of the arterial system and methods that deal with uncertainties in personalized model parameters and boundary conditions are briefly discussed, as they are believed to be major topics for further study and will boost the significance of arterial pulse wave modeling even more.

  20. Arterial Complications of Percutaneous Transhepatic Biliary Drainage

    International Nuclear Information System (INIS)

    Purpose: To report on the frequency and treatment of arterial complications due to percutaneous transhepatic biliary drainage (PTBD).Materials: Lesions of the intrahepatic artery were encountered in 10 of 525 patients treated by PTBD (2%). Hemobilia followed in 9 patients and subcapsular hematoma in 1. Seven patients had a benign biliary stenosis and 3 had a malignant stenosis.Results: The bleeding resolved spontaneously in 3 patients. In 7 it required arterial embolization, which was successfully achieved either through the percutaneous catheter (n= 3) or by arteriography (n= 4).Conclusion: Arterial bleeding is a relatively rare complication of PTBD that can easily be treated by selective arterial embolization when it does not resolve spontaneously. In this series its frequency was much higher (16%) when the stenosis was benign than when it was malignant (0.6%)

  1. Occipital artery anastomosis to vertebral artery causing pulsatile tinnitus.

    Science.gov (United States)

    Alexander, Matthew David; English, Joey; Hetts, Steven W

    2014-03-01

    Pulsatile tinnitus can result from various vascular etiologies that cause transmission of pulsatile turbulent flow into the inner ear. Less commonly, non-vascular sources cause increased blood flow and transmission of sound perceived as tinnitus. Thorough clinical examination leads to appropriate imaging evaluation and therapeutic planning. Most pulsatile tinnitus results from expected mechanisms, such as dural arteriovenous fistula, jugular bulb dehiscence, or paraganglioma; however, the literature contains reports of numerous rare causes, particularly variant anatomic morphologies. We present the case of a novel cause of pulsatile tinnitus in which collateral vascular flow compensated for decreased normal intracranial cerebral arterial supply and might have caused catastrophic consequences if intervened upon after assumptions based on an incomplete evaluation. PMID:23493341

  2. Crenças em saúde sobre a dieta: uma perspectiva de pessoas negras hipertensas

    OpenAIRE

    Cláudia Geovana da Silva Pires; Fernanda Carneiro Mussi

    2012-01-01

    Pesquisa descritiva-exploratória, objetivou identificar as crenças em saúde, de pessoas negras com hipertensão arterial, sobre as barreiras e benefícios relacionados à dieta para o controle da doença, conhecendo os fatores sociodemográficos associados às crenças em saúde quanto aos benefícios para o controle da dieta. Cento e seis adultos, negros e hipertensos foram entrevistados utilizando-se instrumento específico. Os dados foram analisados em percentuais, frequência de casos, escores e raz...

  3. Ensaio sobre Saramago = Essay on Saramago

    Directory of Open Access Journals (Sweden)

    Weigert, Sergio

    2013-01-01

    Full Text Available Partindo da obra de José Saramago, Ensaio sobre a Cegueira, constrói-se o “Ensaio sobre Saramago” sob perspectiva filosófica, fundamentada particularmente em Fredric Jameson. A interrupção da quotidianidade, matéria do desenvolvimento do conteúdo, faz aflorar a hipótese da temporalidade congelada, suporte da argumentação do teórico. Levanta-se a discussão sobre Modernidade e Pós-Modernidade da obra de Saramago, avançando no recurso da ironia, não como alicerce, mas como teia que tece, envolvendo tecido e artista.

  4. Estudo comparativo entre uma e duas doses efetivas (DE95 de rocurônio para a intubação traqueal Estudio comparativo entre una y de los dosis efectivas (DE95 de rocuronio para la intubación traqueal A comparative study between one and two effective doses (ED95 of rocuronium for tracheal intubation

    Directory of Open Access Journals (Sweden)

    Luciano Carlos Gomes de Miranda

    2008-06-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Os bloqueadores neuromusculares (BNM são fármacos utilizados para produzir relaxamento da musculatura esquelética e facilitar a intubação traqueal (IT. A literatura descreve como sendo necessárias duas doses efetivas (DE95 o ideal para a IT. O rocurônio é um BNM não-despolarizante do tipo esteróide, sintético e de duração intermediária. O objetivo desse estudo foi avaliar e comparar as condições de intubação traqueal (IT, utilizando uma e duas doses efetivas (DE95 do rocurônio, seguindo os critérios da Conferência de Consenso de Copenhague. MÉTODO: Foram avaliados 60 pacientes divididos aleatoriamente em dois grupos de 30, de ambos os sexos, idades entre 20 e 60 anos, estado físico ASA I e II, Mallampati 1 e 2, índice de massa corporal (IMC JUSTIFICATIVA Y OBJETIVOS: Los bloqueadores neuromusculares (BNM son fármacos utilizados para producir el relajamiento de la musculatura esquelética y facilitar la intubación traqueal (IT. La literatura describe que son necesarias de los dosis efectivas (DE95 lo ideal para la IT. El rocuronio es un BNM no despolarizador del tipo esteroide, sintético y de duración intermedia. El objetivo de este estudio fue evaluar y comparar las condiciones de intubación traqueal (IT, utilizando una y de los dosis efectivas (DE95 del rocuronio, secundando los criterios de la Conferencia de Consenso de Copenhague. MÉTODO: Se estudiaron 60 pacientes divididos aleatoriamente en 2 grupos de 30, de ambos sexos, edades entre 20 y 60 años, estado físico ASA I y II, Mallampati 1 y 2, índice de masa corporal (IMC BACKGROUND AND OBJECTIVES: Neuromuscular blockers (NMB are used to induce relaxation of skeletal muscles and facilitate tracheal intubation (TI. According to the literature, two effective doses (ED95 of NMB are ideal for TI. Rocuronium is a steroid-type, synthetic, non-depolarizing neuromuscular blocker of medium duration. The objective of this study was to evaluate

  5. Determinant Factors of Technical-Tactical Combinations Frequency in standing position during Womens World Senior Championships 2009 FACTORES DETERMINANTES DE LA FRECUENCIA DE COMBINACIONES TÉCNICO/TÁCTICAS EFECTIVAS EN LA LUCHA DE PIE DURANTE EL CAMPEONATO DEL MUNDO SENIOR FEMENIL 2009

    Directory of Open Access Journals (Sweden)

    David Eduardo López González

    2011-03-01

    Full Text Available Abstract Objective. To classify the perfomance  of world class women wrestlers as the frequency and characteristics of their Technical-Tactical Combinations (TTC with effectiveness in the standing position during the most important competition on the international calendar 2009.Methods.  In the TTC were characterized all standing position effectives by a sample of 70 wrestlers, occupants of the top 10 in each of the 7 weight categories convened. Descriptive variables were used 5 of effectiveness, technical group, and characteristics of its phases. Variables were obtained determining the effectiveness, measured the "success rate" achieved by each fighter, all through factor analysis. Later wrestlers were classified by cluster analysis by Ward's method.Results. The most important factor related to get a medal  was the execution of legs attacks of with several possible endings started with almost no contact with the opponent, followed by the use of low-risk attacks launched from a firm grip. The wrestlers opted mostly for defense and counter low risk. Most of the competitors who had good results using several and alternative projections also managed to end their attacks.Conclusions. Characterization Model used and the factors of effectiveness in the fight standing obtained provided detailed explanations of the performance characteristics of the best wrestlers in the Senior World Championships 2009. The design of this research can be applied year after year in both freestyle and women's.Key words: Technical - Tactical Combinations, Rules, Fighting Women, Factor Analysis and EffectivenessResumenObjetivo. Clasificar la actuación de luchadoras de nivel internacional según la frecuencia y características de sus Combinaciones Técnico/Tácticas (CTT efectivas en posición de pie durante la competencia más importante del calendario internacional 2009.Metodología. Fueron caracterizaron todas las CTT efectivas en posición de pie realizadas por una

  6. Anatomy of Inferior Mesenteric Artery in Fetuses.

    Science.gov (United States)

    Nuzhat, Ayesha

    2016-01-01

    Aim. To analyze Inferior Mesenteric Artery in fetuses through its site of origin, length, diameter, and variation of its branches. Method. 100 fetuses were collected from various hospitals in Warangal at Kakatiya Medical College in Andhra Pradesh, India, and were divided into two groups, group I (second-trimester fetuses) and group II (third-trimester fetuses), followed by dissection. Result. (1) Site of Origin. In group I fetuses, origin of Inferior Mesenteric Artery was at third lumbar vertebra in 33 out of 34 fetuses (97.2%). In one fetus it was at first lumbar vertebra, 2.8%. In all group II fetuses, origin of Inferior Mesenteric Artery was at third lumbar vertebra. (2) Length. In group I fetuses it ranged between 18 and 30 mm, average being 24 mm except in one fetus where it was 48 mm. In group II fetuses the length ranged from 30 to 34 mm, average being 32 mm. (3) Diameter. In group I fetuses it ranged from 0.5 to 1 mm, and in group II fetuses it ranged from 1 to 2 mm, average being 1.5 mm. (4) Branches. Out of 34 fetuses of group I, 4 fetuses showed variation. In one fetus left colic artery was arising from abdominal aorta, 2.9%. In 3 fetuses, Inferior Mesenteric Artery was giving a branch to left kidney, 8.8%. Out of 66 fetuses in group II, 64 had normal branching. In one fetus left renal artery was arising from Inferior Mesenteric Artery, 1.5%, and in another fetus one accessory renal artery was arising from Inferior Mesenteric Artery and entering the lower pole of left kidney. Conclusion. Formation, course, and branching pattern of an artery depend on development and origin of organs to attain the actual adult position. PMID:27313956

  7. Anatomy of Inferior Mesenteric Artery in Fetuses

    Directory of Open Access Journals (Sweden)

    Ayesha Nuzhat

    2016-01-01

    Full Text Available Aim. To analyze Inferior Mesenteric Artery in fetuses through its site of origin, length, diameter, and variation of its branches. Method. 100 fetuses were collected from various hospitals in Warangal at Kakatiya Medical College in Andhra Pradesh, India, and were divided into two groups, group I (second-trimester fetuses and group II (third-trimester fetuses, followed by dissection. Result. (1 Site of Origin. In group I fetuses, origin of Inferior Mesenteric Artery was at third lumbar vertebra in 33 out of 34 fetuses (97.2%. In one fetus it was at first lumbar vertebra, 2.8%. In all group II fetuses, origin of Inferior Mesenteric Artery was at third lumbar vertebra. (2 Length. In group I fetuses it ranged between 18 and 30 mm, average being 24 mm except in one fetus where it was 48 mm. In group II fetuses the length ranged from 30 to 34 mm, average being 32 mm. (3 Diameter. In group I fetuses it ranged from 0.5 to 1 mm, and in group II fetuses it ranged from 1 to 2 mm, average being 1.5 mm. (4 Branches. Out of 34 fetuses of group I, 4 fetuses showed variation. In one fetus left colic artery was arising from abdominal aorta, 2.9%. In 3 fetuses, Inferior Mesenteric Artery was giving a branch to left kidney, 8.8%. Out of 66 fetuses in group II, 64 had normal branching. In one fetus left renal artery was arising from Inferior Mesenteric Artery, 1.5%, and in another fetus one accessory renal artery was arising from Inferior Mesenteric Artery and entering the lower pole of left kidney. Conclusion. Formation, course, and branching pattern of an artery depend on development and origin of organs to attain the actual adult position.

  8. Effects of pressure on arterial failure.

    Science.gov (United States)

    Khamdaengyodtai, Pannathai; Vafai, Kambiz; Sakulchangsatjatai, Phrut; Terdtoon, Pradit

    2012-10-11

    A three-dimensional multilayer model of mechanical response for analyzing the effect of pressure on arterial failure is presented in this work. The multilayer arterial wall is considered to be composed of five different layers. The three-dimensional effects are incorporated within the five-concentric axisymmetric layers while incorporating the nonlinear elastic characteristics under combined extension and inflation. Constitutive equations for fiber-reinforced material are employed for three of the major layers, i.e., intima, media and adventitia and an isotropic material model is employed for the other two layers, i.e., endothelium and internal elastic lamina. Our own developed three-dimensional five-layer model has been utilized to model propagated rupture area of the arterial wall. Required parameters for each layer are obtained by using a nonlinear least square method fitted to in vivo non-invasive experimental data of human artery and the effects of pressure on arterial failure are examined. The solutions from our computational model are compared with previous studies and good agreements are observed. Local stresses and strain distributions across the deformed arterial wall are illustrated and consequently the rupture area is predicted by varying luminal pressure in the physiological range and beyond. The effects of pressure on the arterial failure have been interpreted based on this comprehensive three-dimensional five-layer arterial wall model. This is the first study which employs two constitutive equations and incorporates a five-layer arterial wall model in three-dimensions based on in vivo non-invasive experimental data for a human artery. PMID:22980577

  9. A STUDY ON THE PATTERNS OF CIRCUMFLEX FEMORAL ARTERIES

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    R. Chitra

    2015-09-01

    Full Text Available Context: Many different patterns have been described to classify the origins of circumflex femoral arteries by many authors since from 1860.The aim of the present study was to classify the circumflex femoral arteries in 100 lower limbs of adult cadavers of both sexes following the recent classification and to compare with the previous studies. Materials and Methods: A total of 100 lower limbs of 50 embalmed human adult cadavers (Male: 37, Female: 13 were dissected and observed for the origins of circumflex femoral arteries in femoral triangle in routine educational dissection in the period of 2005-2009 Results: The medial and lateral circumflex femoral arteries have been classified into three different patterns based on the levels of their origin. Pattern I: Both arteries arose from the profunda femoris artery (56%. Type Ia, medial circumflex femoral artery origin was proximal to the lateral circumflex femoral artery origin (69%; Type Ib, lateral circumflex femoral artery origin was proximal to medial circumflex femoral artery origin (16 %; Type Ic, both arteries arose from a common trunk or at same level (14%. Pattern II: One of the arteries arose from the femoral artery and the other from the profunda femoris artery (36%. Type IIa, the medial circumflex femoral artery arose from the femoral artery (75% and Type IIb, the lateral circumflex femoral artery arose from the femoral artery (25%.Pattern III: Both arteries arose from the femoral artery (7%. The medial circumflex femoral artery was absent in a female cadaver on right side. Conclusion: In every pattern or type, there was significantly unilateral higher occurrence than bilateral occurrence. A precise knowledge of the circumflex femoral arteries in relation to the profunda femoris artery is important in surgical interventions of the hip region

  10. Impacto psicosocial del Downsizing sobre los trabajadores

    OpenAIRE

    CRISTÓBAL JIMÉNEZ JIMÉNEZ; JOSÉ LUIS SÁNCHEZ LAGUNA

    2006-01-01

    El presente trabajo intenta ahondar en lo expuesto en un trabajo anterior sobre el downsizing como fenómeno psicosociolaboral, analizando su impacto psicosocial. En primer lugar, se exponen los diferentes niveles de comprensión de este fenómeno, para pasar al análisis de los efectos y consecuencias sobre las personas, diferenciando entre dos tipos de víctimas: a) los que se van de la organización (despedidos) y b) los que se quedan en la organización (supervivientes), prestando especial atenc...

  11. Principios sobre semáforos

    OpenAIRE

    VALENCIA ALAIX, VÍCTOR GABRIEL

    2000-01-01

    Debido a la ausencia de una publicación que reuniese los aspectos más relevantes sobre semáforos y en el marco académico sobre ingeniería de tránsito de los cursos de pregrado y posgrado en Vías y Transporte de la Universidad Nacional de Colombia - Sede Medellín, se ha preparado este documento como guía introductoria a dicho tema. En su preparación se han recogido los tópicos principales de varias publicaciones internacionales y nacionales, además, su desarrollo ha considerado la experi...

  12. Sobre la esclavitud: libro de artista

    OpenAIRE

    MACHADO JIMÉNEZ, ALBERTO

    2015-01-01

    Sobre la esclavitud es un libro de artista, donde encontraremos imágenes acompañadas de breves frases que hacen referencia al tema propuesto en cada ilustración para que así se pueda comprender mejor la intención de este trabajo, reflexionar sobre la manera que tenemos de ver las cosas, en este caso, con respecto a la esclavitud. Dar a conocer distintas formas de ser esclavo en este sistema sería uno de los objetivos principales. Hacer litografías, dibujos con el uso de acua...

  13. Rastros: dizendo sobre os fazeres/dizeres

    OpenAIRE

    MELLO MARISOL BARENCO CORRÊA DE

    2001-01-01

    Com vistas ao aclaramento de noções erroneamente herdadas do contexto social e histórico da cultura moderna ocidental, que teve/tem como um de seus projetos o "apagamento" do sujeito, ou o distanciamento entre os sujeitos e suas formas de fazer, dizer, pensar, este artigo pretende contribuir com elementos para a construção de um outro paradigma nas ciências humanas. Trata-se de um relato sobre o processo de construção de nossa própria pesquisa, articulado à reflexão sobre as diversas formas d...

  14. Dynamic contrast-enhanced ultrasound and transient arterial occlusion for quantification of arterial perfusion reserve in peripheral arterial disease

    International Nuclear Information System (INIS)

    Objective: To quantify muscular micro-perfusion and arterial perfusion reserve in peripheral arterial disease (PAD) with dynamic contrast-enhanced ultrasound (CEUS) and transient arterial occlusion. Materials and methods: This study had local institutional review board approval and written informed consent was obtained from all subjects. We examined the dominant lower leg of 40 PAD Fontaine stage IIb patients (mean age, 65 years) and 40 healthy volunteers (mean age, 54 years) with CEUS (7 MHz; MI, 0.28) during continuous intravenous infusion of 4.8 mL microbubbles. Transient arterial occlusion at mid-thigh level simulated physical exercise. With time–CEUS–intensity curves obtained from regions of interest within calf muscles, we derived the maximum CEUS signal after occlusion (max) and its time (tmax), slope to maximum (m), vascular response after occlusion (AUCpost), and analysed accuracy, receiver operating characteristic (ROC) curves, and correlations with ankle-brachial index (ABI) and walking distance. Results: All parameters differed in PAD and volunteers (p max was delayed (31.2 ± 13.6 vs. 16.7 ± 8.5 s, p post as optimal parameter combination for diagnosing PAD and therefore impaired arterial perfusion reserve. Conclusions: Dynamic CEUS with transient arterial occlusion quantifies muscular micro-perfusion and arterial perfusion reserve. The technique is accurate to diagnose PAD.

  15. Differential imaging features of pulmonary artery dissection from other intraluminal diseases of pulmonary artery: Two cases report

    International Nuclear Information System (INIS)

    Pulmonary artery dissection is rarer than other intraluminal diseases of pulmonary artery such as pulmonary thromboembolism or pulmonary artery sarcoma. We report two cases of pulmonary artery dissection mimicking pulmonary artery sarcoma. Computed tomography (CT) showed no enhancement of intrapulmonary arterial lesion or expansion of involved pulmonary artery. Magnetic resonance imaging (MRI) showed low-signal intensity intimal flap on T1- and T2-weighted images. There was no fluorodeoxyglucose (FDG) uptake on positron emission tomography (PET)-CT. In this case report, we describe the imaging features of pulmonary artery dissection on CT, MRI, and PET-CT.

  16. Differential imaging features of pulmonary artery dissection from other intraluminal diseases of pulmonary artery: Two cases report

    Energy Technology Data Exchange (ETDEWEB)

    Park, Joo Ho; Shin, Hyun Woong; Sohn, Kung Rak; Lee, Yil Gi [Daegu Fatima Hospital, Daegu(Korea, Republic of)

    2015-03-15

    Pulmonary artery dissection is rarer than other intraluminal diseases of pulmonary artery such as pulmonary thromboembolism or pulmonary artery sarcoma. We report two cases of pulmonary artery dissection mimicking pulmonary artery sarcoma. Computed tomography (CT) showed no enhancement of intrapulmonary arterial lesion or expansion of involved pulmonary artery. Magnetic resonance imaging (MRI) showed low-signal intensity intimal flap on T1- and T2-weighted images. There was no fluorodeoxyglucose (FDG) uptake on positron emission tomography (PET)-CT. In this case report, we describe the imaging features of pulmonary artery dissection on CT, MRI, and PET-CT.

  17. Concepções de pais e mães sobre comportamento paterno real e ideal Concepciones de padres y madres sobre comportamiento paterno real e ideal Parents’ beliefs on the actual and ideal paternal behavior

    Directory of Open Access Journals (Sweden)

    Alessandra Bonassoli Prado

    2007-04-01

    Full Text Available O objetivo geral da presente pesquisa foi identificar características da concepção de mães e pais sobre comportamento paterno real e ideal. Participaram do estudo 30 casais (média de 33 anos com pelo menos um filho na faixa de 3 a 6 anos. A coleta de dados foi realizada mediante a aplicação de escalas de estilo paterno, em que os respondentes avaliam o comportamento do pai em termos reais e ideais. Através da análise quantitativa dos dados, constatou-se que não houve diferença significativa na concepção de mães e pais sobre o que seria o comportamento paterno ideal; contudo, em termos reais, existe a tendência de o pai avaliar sua participação como mais efetiva do que imagina a mãe. Por fim, ambos consideram que o ideal de comportamento paterno está distante do real nos aspectos didáticos e de interação social, mas não em relação à disciplina.El objetivo general de la presente investigación fue identificar características del concepto de madres y padres sobre comportamiento paterno real e ideal. Participaron del estudio 30 parejas (media de 33 años con por lo menos un hijo en la faja de 3 la 6 años. La colecta de datos fue realizada mediante la aplicación de escalas de estilo paterno, en que los respondientes evalúan el comportamiento del padre en términos reales e ideales. A través del análisis cuantitativo de los datos, se constató que no hubo diferencia significativa en la concepción de madres y padres sobre lo que sería el comportamiento paterno ideal; sin embargo, en términos reales, existe la tendencia del padre evaluar su participación como más efectiva de lo que imagina la madre. Por fin, ambos consideran que el ideal de comportamiento paterno está distante del real en los aspectos didácticos y de interacción social, pero no en relación al aspecto disciplinar.The characteristics on the mother’s and father’s concept on actual and ideal paternal behavior are provided. Thirty couples (mean

  18. Um olhar sobre a interface trabalho hospitalar e os problemas ambientais Una mirada sobre la interfaz trabajo hospitalario y los problemas ambientales A view about the interface hospital work and the environmental problems

    Directory of Open Access Journals (Sweden)

    Silviamar Camponogara

    2009-12-01

    Full Text Available Objetivou-se verificar como se manifesta a reflexividade ecológica no contexto do trabalho hospitalar e sua influência sobre a ação laboral dos trabalhadores. Pesquisa de abordagem qualitativa, realizada junto a trabalhadores hospitalares de uma instituição pública. Os dados foram coletados por meio de análise documental, observação de campo e entrevista individual e coletiva. Os dados revelaram que o trabalhador mantém uma relação de distanciamento com a problemática ambiental, sendo a normatização sobre gerenciamento de resíduos sólidos o principal viés de aproximação com o tema. O desenvolvimento de ações efetivas de preservação ambiental, por parte do trabalhador hospitalar, está vinculado à adoção dessa questão como política institucional, devendo esse tema ser abordado no processo de educação permanente dos trabalhadores, com base em profunda reflexão ética.El objetivo fue verificar como se manifiesta la reflexividad ecológica en el contexto del trabajo hospitalario y su influencia sobre la acción laboral de los trabajadores. La investigación de abordaje cualitativa, fue realizada junto a trabajadores hospitalares, de una misma institución pública. Los datos fueron recolectados por medio de un análisis documental, observación de campo y entrevista individual y colectiva. Los datos revelaron que el trabajador mantiene una relación distante con la problemática ambiental, siendo la normatización sobre gerenciamiento de resíduos sólidos el principal punto de aproximación con el tema. El desarrollo de las acciones efectivas de preservación ambiental, por parte del trabajador hospitalario, está vinculado a la adopción de esta cuestión como política institucional, debiendo este tema ser abordado en el proceso de educación permanente de los trabajadores, con base en profunda reflexión ética.Objective to verify how the ecologic reflexivity appears in the context of hospital work and its

  19. Consideraciones sobre diferentes procesos productivos y sus consecuencias sobre el medio ambiente

    OpenAIRE

    Caridad Ramos Alvariño

    2004-01-01

    En el presente trabajo se exponen algunas consideraciones sobre diferentes procesos productivos y sus consecuencias sobre el medio ambiente. La disminución del impacto negativo de algunas producciones sobre el medio ambiente es favorable, pero el problema va más allá y de lo que se trata es de la necesidad de una transformación sostenible de las producciones que puedan conducir a una vida agradable y una naturaleza conservada entre otras muchas cuestiones que agobian hoy al mundo. La solución...

  20. Anticoagulation in Pulmonary Arterial Hypertension.

    Science.gov (United States)

    Robinson, Jeffrey C; Pugliese, Steven C; Fox, Daniel L; Badesch, David B

    2016-06-01

    Pulmonary arterial hypertension (PAH) is characterized by molecular and pathologic alteration to the pulmonary circulation, resulting in increased pulmonary vascular resistance, right ventricular failure, and eventual death. Pharmacologic treatment of PAH consists of use of a multitude of pulmonary vasodilators, sometimes in combination. PAH has been associated with increased thrombosis and disrupted coagulation and fibrinolysis, making anticoagulation an attractive and frequently employed therapeutic modality. Observational studies have provided some insight into the therapeutic potential of anticoagulation in idiopathic PAH, but there is a distinct lack of well-controlled prospective trials. Due to the conflicting evidence, there is a large amount of heterogeneity in the application of therapeutic anticoagulation in PAH and further well-controlled prospective trials are needed to clarify its role in treating PAH. PMID:27137522

  1. Idiopathic pediatric retinal artery occlusion

    Directory of Open Access Journals (Sweden)

    Manayath George

    2010-01-01

    Full Text Available We report a case of branch retinal artery occlusion (BRAO in a healthy young girl. An eight-year-old girl presented with sudden loss of vision in her left eye. She had a pale retina with macular edema consistent with extensive BRAO. A thorough workup was performed to determine any etiologic factor. All test results were within normal limits. Her visual acuity improved from finger counting to 20/40 over two weeks, on immediate treatment with intravenous steroids (methyl prednisolone. This case suggests that BRAO can occur in healthy children without any detectable systemic or ocular disorders and a dramatic improvement may be achieved with prompt treatment with intravenous steroids.

  2. New therapies for arterial hypertension.

    Science.gov (United States)

    Pagliaro, Beniamino; Santolamazza, Caterina; Rubattu, Speranza; Volpe, Massimo

    2016-03-01

    Arterial hypertension is the most common chronic disease in developed countries and it is the leading risk factor for stroke, ischemic heart disease, congestive heart failure, chronic renal failure and peripheral artery disease. Its prevalence appears to be about 30-45% of the general population. Recent European guidelines estimate that up to 15-20% of the hypertensive patients are not controlled on a dual antihypertensive combination and they require three or more different antihypertensive drug classes to achieve adequate blood pressure control. The guidelines confirmed that diuretics, beta-blockers, calcium-channel blockers, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers are suitable for the initiation and maintenance of antihypertensive treatment, either as monotherapy or in combination therapy. Very few antihypertensive agents have reached the market over the last few years, but no new therapeutic class has really emerged. The long-term adherence to cardiovascular drugs is still low in both primary and secondary prevention of cardiovascular diseases. In particular, the issue of compliance is persistently high in hypertension, despite the fixed-dose combination therapy. As a consequence, a cohort of high-risk hypertensive population, represented by patients affected by refractory and resistant hypertension, can be identified. Therefore, the need of controlling BP in high-risk patients may be addressed, in part, by the development of new drugs, devices and procedures that are designed to treat hypertension and comorbidities. In this review we will comprehensively discuss the current literature on recent therapeutic advances in hypertension, including both medical therapy and interventional procedures. PMID:26730462

  3. Exercícios físicos na doença arterial obstrutiva periférica Physical exercise in peripheral occlusive arterial disease

    Directory of Open Access Journals (Sweden)

    Elenir Carlot Locatelli

    2009-09-01

    Full Text Available A maioria dos pacientes portadores de claudicação intermitente, um aspecto clínico da doença arterial periférica, tem importante limitação nas atividades físicas e redução na qualidade de vida. O objetivo deste estudo foi realizar uma revisão da literatura sobre a intervenção através de exercícios em portadores de doença arterial obstrutiva periférica com claudicação intermitente. Trata-se de uma revisão de artigos científicos consultados nos bancos de dados da BIREME, PubMed e SciELO, através das fontes LILACS e MEDLINE e a partir dos descritores em Ciências da Saúde claudicação intermitente, doenças vasculares periféricas, reabilitação, exercício e terapia por exercício. Concluiu-se que, apesar da variabilidade dos regimes de caminhada identificados na literatura, o treino aeróbio, de uma forma geral, proporciona benefícios a pacientes portadores de doença arterial obstrutiva periférica com claudicação intermitente, principalmente na melhora do desempenho de caminhada, o que pode ter impacto significativo na qualidade de vida desses pacientes.Most patients with intermittent claudication, a clinical aspect of peripheral arterial disease, have important limitations on physical activity and a reduced quality of life. The purpose of this study was to review literature on exercise intervention for patients with peripheral occlusive arterial disease and intermittent claudication. BIREME, PubMed (MEDLINE, SciELO and LILACS databases were searched for the terms intermittent claudication, peripheral vascular diseases, rehabilitation, exercise, exercise therapy, all of which were taken from the list of Health Science Descriptors (BIREME. It was concluded that, despite the variability of walking regimens identified in the literature, the aerobic training is of general benefit to patients with peripheral arterial disease and intermittent claudication, mainly improving their walking performance, which can have a

  4. Differences in superior thyroid artery and inferior thyroid artery blood flow spectrum parameters in subacute thyroiditis

    Institute of Scientific and Technical Information of China (English)

    Jin-Bo Li

    2016-01-01

    Objective:To study the differences in superior thyroid artery and inferior thyroid artery blood flow spectrum parameters in subacute thyroiditis. Methods:A Total of 40 cases of patients with subacute thyroiditis and 40 cases of healthy volunteers were selected for study and enrolled in pathology group and control group respectively, color Doppler ultrasonography was conducted to detect peak blood flow velocities (Vmax) of superior thyroid artery and inferior thyroid artery as well as resistance index (RI), and serum was collected to detect thyroid hormone contents, infection indexes and oxidative stress indexes. Results:Peak blood flow velocities Vmax of superior thyroid artery and inferior thyroid artery of pathology group were significantly higher than those of control group, and resistance index RI was not different from that of control group;FT3, FT4, TT3, TT4, ESR, CRP, PCT and MDA of pathology group were significantly higher than those of control group, and SOD and TAOC were significantly lower than those of control group;Vmax of superior thyroid artery and inferior thyroid artery were positively correlated with FT3, FT4, TT3, TT4, ESR, CRP, PCT and MDA, and negatively correlated with SOD and TAOC. Conclusion:Peak blood flow velocities (Vmax) of superior thyroid artery and inferior thyroid artery in subacute thyroiditis are significantly accelerated, Vmax has good consistency with thyroid hormone contents, infection indexes and oxidative stress indexes, and it can accurately assess the severity of the disease.

  5. Selective catheterization of the brachiocephalic arteries via the right brachial artery

    International Nuclear Information System (INIS)

    Selective intra-arterial digital subtraction angiography of the brachiocephalic arteries using the right brachial artery approach was successfully performed for 169 of 173 patients, 33 of whom were outpatients. Catheterization was unsuccessful for four patients; two of them elderly hypertensive men with tortuos brachial arteries, and two of them middle-aged obese women for whom arterial puncture could not be performed. 4-F modified Simmons type catheters were used in this study. Selective catheterizations of both common carotid arteries were successfully performed in all but one patient, a woman whose aberrant right subclavian artery prevented bilateral common carotid arterial catheterizations. Selective catheterizations of the right vertebral and left subclavian arteries, though relatively difficult, were successfully performed in 84.2% and 93.9% of patients, respectively. The mean examination time for a four-vessel study was 24.3 min. No major complications were encountered. Thus, transbrachial selective catheterization of the brachiocephalic arteries proved to be safe, useful, and relatively easy to perform. (orig.)

  6. La comunicación efectiva con los usuarios

    OpenAIRE

    Nayar, Leonor

    2009-01-01

    The active listening is a underestimated activitiy but it is a highly effective one. It is the key of success of a good reference service and of an effective communication with users. This kind of activity allows us to know the user´s world, their needs and it allow us to refine a search and to give the users a high quality service

  7. Transcatheter arterial embolization for traumatic bleeding control

    Energy Technology Data Exchange (ETDEWEB)

    Ryu, Choon Wook; Lee, Sang Kwon; Suh, Kyung Jin; Kim, Tae Heon; Kim, Yong Joo; Kang, Duck Sik [Kyungpook National University College of Medicine, Taegu (Korea, Republic of)

    1989-04-15

    Angiography is essential for the detection of bleeding vessels in traumatic vascular injury. Immediately after the diagnosis, transcatheter embolization can be performed for the control of bleeding effectively and easily with proper use of embolic materials. Transcatheter embolization is believed to be the treatment of choice when emergency control is needed, where surgical approach is difficult and in those who are poor candidate for surgery. We have tried bleeding control in 18 cases of trauma over recent 4 years. The results were as follows; 1. Causes of bleeding(cases): Blunt or penetrating trauma (10), latrogenic trauma (8), (Postoperative (5), Needle biopsy (2), Percutaneous hepatic procedure (1)) 2. Embolized vessels: Renal artery branches (8), Hepatic artery branches (2), Arteries supplying chest wall (2), External carotid artery branches (3), Internal carotid artery (1), Circumflex humeral artery (1), Internal iliac artery branches (1). 3. Embolic agents: Gelfoam cubes (16), Stainless steel coils (3), Detachable latex balloon (1). 4. Successful bleeding control was achieved in 17 cases and reduction of the amount of bleeding in one case without significant complications.

  8. Arterial Stiffness and Dialysis Calcium Concentration

    Directory of Open Access Journals (Sweden)

    Fabrice Mac-Way

    2011-01-01

    Full Text Available Arterial stiffness is the major determinant of isolated systolic hypertension and increased pulse pressure. Aortic stiffness is also associated with increased cardiovascular morbidity and mortality in patients with chronic kidney disease, hypertension, and general population. Hemodynamically, arterial stiffness results in earlier aortic pulse wave reflection leading to increased cardiac workload and decreased myocardial perfusion. Although the clinical consequence of aortic stiffness has been clearly established, its pathophysiology in various clinical conditions still remains poorly understood. The aim of the present paper is to review the studies that have looked at the impact of dialysis calcium concentration on arterial stiffness. Overall, the results of small short-term studies suggest that higher dialysis calcium is associated with a transient but significant increase in arterial stiffness. This calcium dependant increase in arterial stiffness is potentially explained by increased vascular smooth muscle tone of the conduit arteries and is not solely explained by changes in mean blood pressure. However, the optimal DCa remains to be determined, and long term studies are required to evaluate its impact on the progression of arterial stiffness.

  9. RIGHT SUPERIOR POLAR ARTERY ARISING FROM AORTA

    Directory of Open Access Journals (Sweden)

    Sreekanth

    2013-05-01

    Full Text Available ABSTRACT: The renal vasculature was always a subject of varia tions both in the number and pattern of portal of entry into kidney and Perihilar placement of the artery, vein and pelvis. Good anatomical insight is an essential prerequisite besides the surgical expertise. The cadaveric dissection at Shadan Institute of Medical Sciences, Teaching Hospital and Research Centre, revealed superior / upper polar artery arising from the lateral aspect of the aorta just proximal to the origin of Main Renal Artery (MRA. T he main renal artery and the accessory renal artery had almost a common point of origin. Th e peri-hilar segmentation of the main renal artery was a fork like pattern. One of the segmental arteries was long and had its portal of entry into the kidney by perforating the capsule of the ant erior substance of the kidney. The remaining segmental branches had their portal of ent ry through the hilum. The lower two segmental branches were placed anterior to the main renal vein causing altered hilar anatomy. A thorough knowledge of the frequently to the rarel y occurring wide range of variations of renal vasculature has significance in exploration and trea tment of renal trauma, renal transplantation, renal artery embolization, surgery for abdominal ao rtic aneurysm and conservative or radical renal surgery. Such a rare variation including the combination of extra renal peri-hilar segmentation of MRA with superior polar artery is wor thy of concern to the urologists harvesting kidneys from the live donors for performi ng transplantation procedures, partial nephrectomies for the hilar tumors and for Radiologi sts during interpretation of the angiograms

  10. Diagnosis and outcome of cervical artery dissection

    Directory of Open Access Journals (Sweden)

    Divjak Ivana

    2011-01-01

    Full Text Available Introduction. Spontaneous dissection of the cervical artery is a rare non-atherosclerotic vascular disease of unknown aetiology and unclear pathogenesis that may be a cause of ischemic stroke in young adults. Diagnosis. Precise diagnosis of dissection of the cervical artery - carotid or vertebral - is possible with cervical axial magnetic resonance imaging and magnetic resonance angiography. Treatment. The recommended treatment in the acute phase of cervical artery dissection is anticoagulant or antithrombotic therapy, aimed at preventing a primary or recurrent ischemic event. There have been as yet no results of randomized controlled studies comparing efficacy of both treatments. An ongoing randomized multicentre study is expected to provide answers about the effects of these treatments in cervical artery dissection. Outcome. Complete resolution of arterial abnormalities is achieved in around 46% of stenoses, 33% of occlusions, and 12% of dissecting aneurysms. Recurrent events. Recurrence of cerebral ischemia and cervical artery dissection seems to be rare, although some data suggest that early ischemic and late cervical artery dissection recurrences could be underestimated. Mortality and functional outcome. In comparison with other causes of stroke in young adults, the functional outcome of cervical artery dissection is good in contrast to its socio-professional effects, which may be unsatisfactory. The mortality rate of cervical artery dissection is low, although it may be underestimated since some patients with malignant infarction die before the diagnosis is established. Conclusion. Further research is warranted to improve our understanding of the underlying pathophysiology, to assess the long-term outcome, and ultimately to provide treatment and prevention strategies.

  11. Dilemas éticos en el diagnóstico de hipertensión arterial

    Directory of Open Access Journals (Sweden)

    Sandra Santana López

    2012-12-01

    Full Text Available Se realizó una revisión sobre los dilemas éticos en el diagnóstico de la hipertensión arterial, así como de algunos elementos en el surgimiento del concepto de bioética. Se identificaron los conflictos éticos que aparecen en cada etapa del diagnóstico de la hipertensión arterial: en el momento de suministrar la información, en el instante de la indicación y realización de las pruebas diagnósticas, en la comunicación del diagnóstico y en la toma de decisiones posteriores. Se concluye que el desarrollo tecnológico va a introducir nuevas decisiones éticas en el diagnóstico de la hipertensión arterial que van a involucrar cada vez más los intereses de la sociedad y crear de una manera u otra conflictos éticos y morales en la toma de decisiones.

  12. Las fuentes cristianas sobre Jesús

    Directory of Open Access Journals (Sweden)

    Melero Martínez, J.M.

    2010-01-01

    Full Text Available El artículo es una presentación de las fuentes históricas sobre Jesús de Nazaret: fuentes sinópticas, fuente Q, fuentes afines a la gnosis, fragmentos de evangelio con material sinóptico o joánico, evangelios judeocristianos y otras fuentes.

  13. Sobre o natural e o actor

    OpenAIRE

    Tavares, Margarida

    2010-01-01

    Neste artigo, procura-se reflectir sobre o conceito de natural quando aplicado ao trabalho do actor. Parte-se de quatro relevantes textos da dramaturgia ocidental, a saber: Hamlet, de Shakespeare; Crítica da ‘Escola das mulheres’ e O improviso de Versalhes, de Molière; e O teatro cómico, de Goldoni.

  14. Sobre un sistema no lineal de epidemias

    OpenAIRE

    Ortega S., Luis

    2012-01-01

    Un modelo sobre epidemias que describe la población infectada y la población susceptible de ser infectada en el cual se toma en consideraci6n el efecto de difusión es el siguiente: [Formula Matemática].

  15. MR imaging of persistent primitive trigeminal artery

    Energy Technology Data Exchange (ETDEWEB)

    Ashikaga, Ryuichiro; Araki, Yutaka; Ono, Yukihiko; Ishida, Osamu [Kinki Univ., Higashi-Osaka, Osaka (Japan); Mabuchi, Nobuhisa

    1997-02-01

    The persistent trigeminal artery is the most common anomaly of the primitive carotid-vertebrobasilar anastomoses. We reviewed MR images and MR angiographies of 11 patients with primitive trigeminal artery. In 8 of the 11 cases, PTA were identified with conventional long TR spin-echo images. In 8 of 11 cases, a hypoplastic basilar trunk associated with PTA was seen on both MR images and MR angiographies. In 7 of 11 cases, a hypoplasia or agenesis of the ipsilateral posterior communicating artery was seen on MR angiographies. (author)

  16. Severe Hemobilia from Hepatic Artery Pseudoaneurysm

    Directory of Open Access Journals (Sweden)

    Fabio Sansonna

    2011-01-01

    Full Text Available Background. Hemobilia is a rare, jeopardizing complication of laparoscopic cholecystectomy coming upon usually within 4 weeks after surgery. The first-line management is angiographic coil embolization of hepatic arteries, which is successful in the majority of bleedings: in a minority of cases, a second embolization or even laparotomy is needed. Case Presentation. We describe the case history of a patient in which laparoscopic cholecystectomy was complicated 3 weeks later by massive hemobilia. The cause of haemorrhage was a pseudoaneurysm of a right hepatic artery branching off the superior mesenteric artery; this complication was successfully managed by one-stage angiographic embolization with full recovery of the patient.

  17. MR imaging of persistent primitive trigeminal artery

    International Nuclear Information System (INIS)

    The persistent trigeminal artery is the most common anomaly of the primitive carotid-vertebrobasilar anastomoses. We reviewed MR images and MR angiographies of 11 patients with primitive trigeminal artery. In 8 of the 11 cases, PTA were identified with conventional long TR spin-echo images. In 8 of 11 cases, a hypoplastic basilar trunk associated with PTA was seen on both MR images and MR angiographies. In 7 of 11 cases, a hypoplasia or agenesis of the ipsilateral posterior communicating artery was seen on MR angiographies. (author)

  18. Occipital Artery Pseudoaneurysm: A Rare Scalp Swelling

    OpenAIRE

    Nagpal, Nitin; Bhargava, Gopal Swaroop; Singh, Bhupinder

    2012-01-01

    Traumatic pseudoaneurysm occurring in face and temple is commonly reported to occur in superficial temporal artery, and so far only four cases have reported involvement of the occipital artery. We report a case of 25-year-old male patient presented to us with a pulsatile swelling in the occipital region following a trauma at the same site 5 years ago. A CT angiogram revealed the pseudoaneurysm of the left occipital artery and was surgically excised after ligation of proximal and distal parts ...

  19. Pulmonary Artery Agenesis: A Case Series

    Directory of Open Access Journals (Sweden)

    Meltem Ağca

    2015-04-01

    Full Text Available Pulmonary artery agenesis is a rare congenital abnormality in which atresia was encountered in the short segment of the right or left pulmonary arteries. It can be isolated or associated with cardiac abnormalities such as tetralogy of Fallot, septal defects or pulmonary stenosis.The majority of cases are diagnosed in childhood whereas some cases yield no symptoms until adulthood. We evaluated retrospectively 5 pulmonary artery agenesis cases diagnosed in our clinics between 1998-2010 with respect to the literature.

  20. ON WALL SHEAR STRESS OF ARTERY

    Institute of Scientific and Technical Information of China (English)

    Liu Zhao-rong; Liu Bao-yu; Qin Kai-rong

    2003-01-01

    In this paper, a method was proposed that the wall shear stress of artery could be determined by measuring the centerline axial velocity and radial motion of arterial wall simultaneously.The method is simple in application and can get higher precision when it is used to determine the shear stress of arterial wall in vivo.As an example, the shear stress distribution in periodic oscillatory flow of human carotid was calculated and discussed.The computed results show that the shear stress distribution at any given instant is almost uniform and will be zero at the centerline and tends to maximum at the vessel wall.

  1. Simulation of the human intracranial arterial tree.

    Science.gov (United States)

    Grinberg, Leopold; Anor, Tomer; Cheever, Elizabeth; Madsen, Joseph R; Karniadakis, George Em

    2009-06-13

    High-resolution unsteady three-dimensional flow simulations in large intracranial arterial networks of a healthy subject and a patient with hydrocephalus have been performed. The large size of the computational domains requires the use of thousands of computer processors and solution of the flow equations with approximately one billion degrees of freedom. We have developed and implemented a two-level domain decomposition method, and a new type of outflow boundary condition to control flow rates at tens of terminal vessels of the arterial network. In this paper, we demonstrate the flow patterns in the normal and abnormal intracranial arterial networks using patient-specific data. PMID:19414460

  2. Use of arterial conduit for arterial revascularization during liver and multivisceral transplantation

    Institute of Scientific and Technical Information of China (English)

    MA Yi; LI Qiang; YE Zhi-ming; ZHU Xiao-feng; HE Xiao-shun

    2011-01-01

    Background At present, revascularization is still one of the most critical technologies in orthotopic liver transplantation (OLT). Hepatic artery (HA) variations occur frequently in both donors and recipients. Moreover, there are always some pathological changes in the recipient hepatic artery. If handled improperly, it may cause complications after anastomosis.Therefore, arterial conduit could be used in primary OLT, re-OLT and multiple-OLT. This study aimed to investigate the indications, methods and techniques with usage of arterial conduit for HA revascularization during adult OLT.Methods We reviewed 1200 patients of consecutive OLTs performed during 2000-2009 in the First Affiliated Hospital of Sun Yat-sen University. Of these patients, 48 recipients with artery variations received HA revascularization with usage of arterial conduit and special postoperative managements. The indications, methods, techniques, and the managements of postoperative complications in adult OLT with usage of arterial conduit for HA revascularization were analyzed.Results In 48 cases with artery bypass, the arterial conduit were anastomosed between donor hepatic artery and recipient infrarenal aorta (n=32), between donor hepatic artery and recipient suprarenal aorta (n=10), and between donor upper abdominal organ cluster artery and recipient suprarenal aorta (n=6). The technique was applied in 4% (48/1200 cases) of the whole OLTs performed in the same period, and the patency rate of the conduits was 100%. Forty patients (83.3%) survived, and the average survival time was 3.9 years. Eight patients (16.7%) died (all due to tumor recurrence),while the average survival time was 1.2 years. All these patients have not experienced artery-related complications in their survival time.Conclusions When recipient HA has variations or pathological changes in OLT, the donor artery should be anastomosed to recipient abdominal aorta with an arterial conduit to achieve satisfactory outcomes

  3. Pedal arteries of monkeys, with special reference to the plantar metatarsal arteries.

    Directory of Open Access Journals (Sweden)

    Hinenoya,Hitoshi

    1987-12-01

    Full Text Available In the Japanese, Formosan and crab-eating monkeys, the dorsal metatarsal arteries and their lateral distal perforating branches were well developed and supplied, directly or via the catella plantaris distalis, the plantar digital arteries. In the black ape, the plantar digital arteries arose from the medial plantar artery. The plantar metatarsal arteries of these monkeys, including the black ape, arose from the catella plantaris proximalis or deep plantar arch and were classified into the superficial plantar metatarsal (sM, superficial plantar intermetatarsal (sI, deep plantar metatarsal (dM and deep plantar intermetatarsal (dI arteries in relation to the interosseous muscles and metatarsal bones. This classification largely coincides with that of the human hand and foot (Murakami, 1969, 1971 and the monkey hand (Nakai et al., 1987.

  4. Study of cystic artery by arteriography. Importance of previous cholecystography

    Energy Technology Data Exchange (ETDEWEB)

    Machado, G.O.

    An oral cholecystography previously to celiac and mesenteric arteriography is performed, in order to identify the cystic artery, in 42 patients with pancreatitis, according Seldinger technique. The cystic artery was identified in all the cases, the pattern being the outlet of the cystic artery from the right hepatic artery. Infusion pump and seriography were not used.

  5. Giant vertebral artery aneurysm in a child treated with endovascular parent artery occlusion and coil embolization

    OpenAIRE

    Hun-Soo Park; Ichiro Nakagawa; Takeshi Wada; Hiroyuki Nakagawa; Yasuo Hironaka; Kimihiko Kichikawa; Hiroyuki Nakase

    2014-01-01

    Background: Intracranial giant vertebral artery aneurysms are extremely rare in the pediatric population and are associated with significant morbidity and mortality. The present report describes a case of a pediatric patient with giant vertebral artery aneurysm who presented with intracranial mass effect. This patient was successfully treated with endovascular parent artery occlusion and coil embolization. Case Description: A 7-year-old girl presented with tetraparesis, ataxia, dysphagia,...

  6. The physiological impact of the nonlinearity of arterial elasticity in the ambulatory arterial stiffness index

    International Nuclear Information System (INIS)

    The ambulatory arterial stiffness index (AASI) is claimed to be a new estimator for arterial rigidity. It was recently defined as one minus the slope of the linear regression of systolic to diastolic ambulatory pressure during 24 h. Although several reports testify its clinical relevance, the explanation of how this new index is conceptually associated with arterial stiffness remains controversial. In this work we hypothesize that nonlinear arterial elasticity is behind AASI physiological principles. To that end, random number generators were used to emulate arterial cross-sectional area (CSA) during 24 h. Pressure values were calculated using linear and nonlinear elasticity models for rigid and compliant arteries. The AASI was calculated from simulated pressures and also analytically predicted for each model. Additionally, invasive aortic pressure and CSA were continuously measured in a conscious sheep during 24 h to test the nonlinear model. We found that analytical solutions agreed with simulation outcomes; for the nonlinear model, the AASI was higher in rigid arteries with respect to compliant arteries (0.51 versus 0.38) and the linear model systematically predicted AASI = 0. For in vivo pressure measurements, AASI was 0.31. Using the measured pulsatile CSA and an estimation of the elastic constant for the nonlinear model, the AASI was accurately predicted with errors below 5%. We conclude that the AASI is higher in stiffer arteries due to the nonlinear behavior of the arterial wall. With a nonlinear arterial function, the slope of the linear regression of diastolic to systolic pressures during 24 h depends on the product of an elastic constant by the pulsatile CSA. As the elastic constant dominates the product, the reported associations between the AASI and arterial stiffness indices now have a consistent explanation

  7. Congenital absence of the internal carotid artery and the basilar artery with persistent trigeminal artery associated with coarctation of the aorta

    Energy Technology Data Exchange (ETDEWEB)

    Jaeger, H.J.; Mehring, U.M.; Gissler, H.M.; Mathias, K.D. [Dept. of Diagnostic Radiology, Staedtische Kliniken Dortmund (Germany); Dept. of Radiology and MicroTherapy, Univ. of Witten/Herdecke (Germany)

    2000-11-01

    We report a case of congenital absence of the cervical and petrous part of the left internal carotid artery, the middle and proximal part of the basilar artery, and the V4 segment of the left vertebral artery associated with a left persistent trigeminal artery and a coarctation of the aorta. The left cerebral vessels are supplied via the anterior communicating artery and the left persistent trigeminal artery. The coexisting coarctation of the aorta led to a subclavian steal phenomenon. The alteration of the cerebral hemodynamics has to be taken in consideration when performing cerebral angiography and surgical correction in such a case. (orig.)

  8. Congenital absence of the internal carotid artery and the basilar artery with persistent trigeminal artery associated with coarctation of the aorta

    International Nuclear Information System (INIS)

    We report a case of congenital absence of the cervical and petrous part of the left internal carotid artery, the middle and proximal part of the basilar artery, and the V4 segment of the left vertebral artery associated with a left persistent trigeminal artery and a coarctation of the aorta. The left cerebral vessels are supplied via the anterior communicating artery and the left persistent trigeminal artery. The coexisting coarctation of the aorta led to a subclavian steal phenomenon. The alteration of the cerebral hemodynamics has to be taken in consideration when performing cerebral angiography and surgical correction in such a case. (orig.)

  9. Intriguing variations of the tibial arteries and their clinical implications

    Directory of Open Access Journals (Sweden)

    Jelev L

    2011-03-01

    Full Text Available Unusual course and branching pattern of the tibial arteries were discovered during routine anatomical dissection of the right lower extremity of a 61-year-old female cadaver. The arteries of the crural region arose from the popliteal artery, as usual. However, the anterior tibial artery was hypoplastic and supplying the anterior calf muscles ended above the ankle joint. Instead, the posterior tibial artery gave off a large anterior branch, which crossed the lowest portion of the interosseous membrane and prolonged as the most distal continuation of the anterior tibial artery –the dorsalis pedis artery. The rest of the posterior tibial artery continued its course distally and divided into the usual medial and lateral plantar arteries. We briefly review the reported variations of the tibial arteries and discussed their clinical relevance.

  10. A Case of Incomplete Central Retinal Artery Occlusion Associated with Short Posterior Ciliary Artery Occlusion

    Directory of Open Access Journals (Sweden)

    Shinji Makino

    2013-01-01

    Full Text Available To our knowledge, incomplete central retinal artery occlusion associated with short posterior ciliary artery occlusion is extremely rare. Herein, we describe a case of a 62-year-old man who was referred to our hospital with of transient blindness in his right eye. At initial examination, the patient’s best-corrected visual acuity was 18/20 in the right eye. Fundus examination showed multiple soft exudates around the optic disc and mild macular retinal edema in his right eye; however, a cherry red spot on the macula was not detected. Fluorescein angiography revealed delayed dye inflow into the nasal choroidal hemisphere that is supplied by the short posterior ciliary artery. The following day, the patient’s visual acuity improved to 20/20. Soft exudates around the optic disc increased during observation and gradually disappeared. His hemodynamic parameters revealed subclavian steal syndrome as examined by cervical ultrasonography and digital subtraction angiography. We speculate that his transient blindness was due to ophthalmic artery spasms. In this particular case, spasms of the ophthalmic artery and occlusion of the short posterior ciliary artery occurred simultaneously. As the short posterior ciliary artery branches from the ophthalmic artery, the anatomical location of the lesion might be near the branching of both arteries.

  11. The new technique of using the epigastric arteries in renal transplantation with multiple renal arteries

    Directory of Open Access Journals (Sweden)

    Mohammad Ali Amirzargar

    2013-01-01

    Full Text Available The most common anatomic variant seen in the donor kidneys for renal transplantation is multiple renal arteries (MRA, which can cause an increased risk of complications. We describe the long-term outcomes of 16 years of experience in 76 kidney transplantations with MRAs. In a new reconstruction technique, we remove arterial clamps after anastomosing the donor to the recipient′s main renal vessels, which cause backflow from accessory arteries to prevent thrombosis. By this technique, we reduce the ischemic times as well as the operating times. Both in live or cadaver donor kidneys, lower polar arteries were anastomosed to the inferior epigastric artery and upper polar arteries were anastomosed to the superior epigastric arteries. Injection of Papaverine and ablation of sympathic nerves of these arteries dilate and prevent them from post-operative spasm. Follow-up DTPA renal scan in all patients showed good perfusion and function of the transplanted kidney, except two cases of polar arterial thrombosis. Mean creatinine levels during at least two years of follow-up remained acceptable. Patient and graft survival were excellent. No cases of ATN, hypertension, rejection and urologic complications were found. In conclusion, this technique can be safely and successfully utilized for renal transplantation with kidneys having MRAs, and may be associated with a lower complication rate and better graft function compared with the existing techniques.

  12. Recanalization of superficial femoral artery by retrograde approach via popliteal artery

    International Nuclear Information System (INIS)

    To recanalize the occlusive lesion of superficial femoral artery at origin site by retrograde approach via popliteal artery. 15 patients, who were poor surgical candidates due to coronary artery disease and who had severe occlusive lesion of superficial femoral artery close to its origin with good distal runoffs to popliteal artery, were selected. Patients were all men and range of age were from 53 years to 66 years (mean age: 63 years). Range of lesion length were from 15 cm to 30 cm (mean length: 22.4 cm). Localization of popliteal artery was done with Doppler stethoscope or 'road-map' DSA. The method of recanalization were transluminal endarterectomy catheter (TEC), TEC and angioplasty, thrombolysoangioplasty (TLA). Retrograde puncture of popliteal artery was done in 15 patients successfully. TEC and PTA was performed in 9 patients, TEC only in 2 patients, and TLA and PTA in 2 patients. During the follow-up period of 5 months to 2 years reocclusion did not occur in 10 patients except for 1 patient with poor cardiac output in whom it occurred 1 day later. Remained 4 patients were lost in follow up. Any neurologic or vascular complication did not occur. Retrograde approach of superficial femoral artery via popliteal artery in patients with difficult vascular intervention by common method provides a useful, alternative recanalization method

  13. Recanalization of superficial femoral artery by retrograde approach via popliteal artery

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae Kyu; Kim, Hyung Kil; Yun, Ung; Seo, Jeong Jin; Kang, Heoung Keun [Chonnam University Medical School, Kwangju (Korea, Republic of)

    1995-09-15

    To recanalize the occlusive lesion of superficial femoral artery at origin site by retrograde approach via popliteal artery. 15 patients, who were poor surgical candidates due to coronary artery disease and who had severe occlusive lesion of superficial femoral artery close to its origin with good distal runoffs to popliteal artery, were selected. Patients were all men and range of age were from 53 years to 66 years (mean age: 63 years). Range of lesion length were from 15 cm to 30 cm (mean length: 22.4 cm). Localization of popliteal artery was done with Doppler stethoscope or 'road-map' DSA. The method of recanalization were transluminal endarterectomy catheter (TEC), TEC and angioplasty, thrombolysoangioplasty (TLA). Retrograde puncture of popliteal artery was done in 15 patients successfully. TEC and PTA was performed in 9 patients, TEC only in 2 patients, and TLA and PTA in 2 patients. During the follow-up period of 5 months to 2 years reocclusion did not occur in 10 patients except for 1 patient with poor cardiac output in whom it occurred 1 day later. Remained 4 patients were lost in follow up. Any neurologic or vascular complication did not occur. Retrograde approach of superficial femoral artery via popliteal artery in patients with difficult vascular intervention by common method provides a useful, alternative recanalization method.

  14. Left bronchial artery arising from a replaced left hepatic artery in a patient with massive hemoptysis

    Energy Technology Data Exchange (ETDEWEB)

    Khil, Eun Kyung; Lee, Jae Myung [Dept. of Radiology, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon (Korea, Republic of)

    2015-09-15

    A 70-year-old man with a 3-year history of bronchiectasis presented with massive hemoptysis that had lasted for 3 days. In our attempt to perform bronchial artery embolization, upper abdominal angiography was required to locate the left bronchial artery, which in this case was of anomalous origin, arising from a replaced left hepatic artery, which arose from the left gastric artery-a very unusual anatomical variant. We performed embolization with polyvinyl alcohol particles, and the patient's symptoms resolved completely, with no additional complications after conservative treatment.

  15. Renal Arterial Network Structure by Computed Tomography, and Nephron-Arterial Interactions

    DEFF Research Database (Denmark)

    2015-01-01

    , with afferent arterioles originating from all arterial structures, including arcuate arteries. The modeling component has 2 novel features: a probability based vascular tree based on the data from the CT images, and a network of arteries supplying several simple whole nephron models coupled electrotonically......Our goal is to predict interactions that develop among nephrons and between nephrons and the arterial network that supports them. We have developed a computationally simple but physiologically-based mathematical model of the kidney vascular tree to study renal autoregulation in ensembles....... The network model predicts dynamical aspects of vascular pressure drops and nephron self-sustained cooperative dynamics....

  16. Atypical presentation of popliteal artery entrapment syndrome: involvement of the anterior tibial artery.

    Science.gov (United States)

    Bou, Steven; Day, Carly

    2014-11-01

    Popliteal artery entrapment syndrome (PAES) is a rare condition that should be suspected in a young patient with exertional lower extremity pain. We report the case of an 18-year-old female volleyball player with bilateral exertional lower extremity pain who had been previously diagnosed with tendinitis and periostitis. Diagnostic studies showed entrapment of the left popliteal artery and the left anterior tibial artery. To our knowledge, there has only been 1 previous report of anterior tibial artery involvement in PAES. PMID:24880061

  17. Transposition of the great arteries

    Directory of Open Access Journals (Sweden)

    Castela Eduardo

    2008-10-01

    Full Text Available Abstract Transposition of the great arteries (TGA, also referred to as complete transposition, is a congenital cardiac malformation characterised by atrioventricular concordance and ventriculoarterial (VA discordance. The incidence is estimated at 1 in 3,500–5,000 live births, with a male-to-female ratio 1.5 to 3.2:1. In 50% of cases, the VA discordance is an isolated finding. In 10% of cases, TGA is associated with noncardiac malformations. The association with other cardiac malformations such as ventricular septal defect (VSD and left ventricular outflow tract obstruction is frequent and dictates timing and clinical presentation, which consists of cyanosis with or without congestive heart failure. The onset and severity depend on anatomical and functional variants that influence the degree of mixing between the two circulations. If no obstructive lesions are present and there is a large VSD, cyanosis may go undetected and only be perceived during episodes of crying or agitation. In these cases, signs of congestive heart failure prevail. The exact aetiology remains unknown. Some associated risk factors (gestational diabetes mellitus, maternal exposure to rodenticides and herbicides, maternal use of antiepileptic drugs have been postulated. Mutations in growth differentiation factor-1 gene, the thyroid hormone receptor-associated protein-2 gene and the gene encoding the cryptic protein have been shown implicated in discordant VA connections, but they explain only a small minority of TGA cases. The diagnosis is confirmed by echocardiography, which also provides the morphological details required for future surgical management. Prenatal diagnosis by foetal echocardiography is possible and desirable, as it may improve the early neonatal management and reduce morbidity and mortality. Differential diagnosis includes other causes of central neonatal cyanosis. Palliative treatment with prostaglandin E1 and balloon atrial septostomy are usually

  18. Arterial and Peripheral Sympathectomy for Vasospastic Disease

    Medline Plus

    Full Text Available Arterial and Peripheral Sympathectomy for Vasospastic Disease Click Here to view the BroadcastMed, Inc. Privacy Policy and Legal Notice © 2016 BroadcastMed, Inc. All rights reserved.

  19. Oxygen transfer in human carotid artery bifurcation

    Institute of Scientific and Technical Information of China (English)

    Z.G.Zhang; Y.B.Fan; X.Y.Deng

    2007-01-01

    Arterial bifurcations are places where blood flow may be disturbed and slow recirculation flow may occur.To reveal the correlation between local oxygen transfer and atherogenesis, a finite element method was employed to simulate the blood flow and the oxygen transfer in the human carotid artery bifurcation. Under steady-state flow conditions, the numerical simulation demonstrated a variation in local oxygen transfer at the bifurcation, showing that the convective condition in the disturbed flow region may produce uneven local oxygen transfer at the blood/wall interface.The disturbed blood flow with formation of slow eddies in the carotid sinus resulted in a depression in oxygen supply to the arterial wall at the entry of the sinus, which in turn may lead to an atherogenic response of the arterial wall, and contribute to the development of atherosclerotic stenosis there.

  20. Radiation-induced coronary artery disease

    International Nuclear Information System (INIS)

    This report describes three patients who developed myocardial infarction at an untimely age, 4 to 12 years after radiation therapy for Hodgkin's disease. These cases lend credence to the cause and effect relation of such therapy to coronary artery disease

  1. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... the sternum and cannulate the aorta and the right atrium. In this operation, since we are not ... exactly perpendicular to the camera port here. All right. The femoral artery will be used to give ...

  2. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... This usually leads us to the fifth intercostal space here on the anterior axillary node. This is ... for the peripheral arteries. Okay. Again, fifth intercostal space, anterior axillary line is where we are with ...

  3. Coronary Artery Disease - Coronary Heart Disease

    Science.gov (United States)

    ... Tools & Resources Stroke More Coronary Artery Disease - Coronary Heart Disease Updated:May 20,2016 View an animation of ... call 9-1-1. Risk Factors and Coronary Heart Disease Major risk factors that can't be changed ...

  4. Cervical artery dissection following a turbulent flight.

    LENUS (Irish Health Repository)

    Quinn, Colin

    2012-01-31

    BACKGROUND: Cervical artery dissection is a common cause of stroke in young patients without vascular risk factors and may affect the carotid or vertebral arteries. The risk of spontaneous dissection is higher in those with genetic predisposing factors while other cases may be precipitated by an event involving head or neck movement or associated with direct neck trauma. CASE REPORT: We present the case of a previously well young woman with a history of migraine who developed internal carotid artery dissection following a turbulent short-haul commercial flight while restrained using a seatbelt. DISCUSSION: We propose that repetitive flexion-hyperextension neck movements encountered during the flight were the most likely precipitant of carotid artery dissection in this case and review the therapeutic options available.

  5. Ischemic stroke: carotid and vertebral artery disease.

    Science.gov (United States)

    Vilela, P; Goulão, A

    2005-03-01

    Ischemic strokes may have distinct aetiologies, including several different intrinsic arterial pathological disorders. The diagnosis and understanding of these arterial diseases is critical for the correct management of stroke as different treatment approaches are undertaken according to the aetiology. Atherosclerosis is by far the most common arterial disease among adults, and other pathological processes include arterial dissection, small vessel disease, inflammatory and non-inflammatory vasculopathy and vasomotor disorders. In children, there are several vasculopathies responsible for vaso-occlusive disease such as sickle-cell anemia, acute regressive angiopathy and Moya-Moya disease, neurofibromatosis, dissections, vasculitis associated with intracranial and systemic infections. An overview of the major carotid and vertebral pathological diseases responsible for ischemic stroke in adults and children, highlighting the accuracy of the different imaging modalities for its diagnosis and the imaging appearance of these diseases, is given. PMID:15657789

  6. Ischemic stroke: carotid and vertebral artery disease

    International Nuclear Information System (INIS)

    Ischemic strokes may have distinct aetiologies, including several different intrinsic arterial pathological disorders. The diagnosis and understanding of these arterial diseases is critical for the correct management of stroke as different treatment approaches are undertaken according to the aetiology. Atherosclerosis is by far the most common arterial disease among adults, and other pathological processes include arterial dissection, small vessel disease, inflammatory and non-inflammatory vasculopathy and vasomotor disorders. In children, there are several vasculopathies responsible for vaso-occlusive disease such as sickle-cell anemia, acute regressive angiopathy and Moya-Moya disease, neurofibromatosis, dissections, vasculitis associated with intracranial and systemic infections. An overview of the major carotid and vertebral pathological diseases responsible for ischemic stroke in adults and children, highlighting the accuracy of the different imaging modalities for its diagnosis and the imaging appearance of these diseases, is given. (orig.)

  7. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... endothoracic fascia, as we call it. This is tissue covering that artery, and this is all done ... cleaner as open surgery because there is less tissue trauma and less bleeding, and we also like ...

  8. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... artery. Yes. Okay. And we see some fat calcium plaque here on the vessel. This part is ... ancient Greek, to make an opening between two channels. So I think we are almost ready to ...

  9. Angiography in acute mesenteric arterial insufficiency

    International Nuclear Information System (INIS)

    The angiographic findings in 31 cases of acute mesenteric arterial insufficiency are presented. In 22 cases organic occlusions, in 9 vasoconstriction alone, were found. Angiography aids definitely in the diagnosis and planning of the treatment of this serious condition. (Auth.)

  10. Evaluation of Peripheral Arterial Disease in Prediabetes

    Directory of Open Access Journals (Sweden)

    Elham Faghihimani

    2014-01-01

    Conclusions: Peripheral arterial disease is common in asymptomatic diabetes and prediabetes patients. Management of hypertensive prediabetes patients and early detection of PAD in this group as well as in asymptomatic patients is important.

  11. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... Artery Bypass” grafting. Let me first introduce our team here. My name is Johannes Bonatti. I’m ... the anesthesia side, Patrick Odonker, leading the anesthesia team, working with Teresa Nemitz. It is a special ...

  12. The arterial load in pulmonary hypertension

    Directory of Open Access Journals (Sweden)

    A. Vonk-Noordegraaf

    2010-09-01

    Full Text Available The anatomical differences between the pulmonary and systemic arterial system are the main cause of the difference in distribution of compliance. In the pulmonary arterial system compliance is distributed over the entire arterial system, and stands at the basis of the constancy of the RC-time. This distribution depends on the number of peripheral vessels, which is ∼8–10 times more in the pulmonary system than the systemic tree. In the systemic arterial tree the compliance is mainly located in the aorta (80% of total compliance in thoracic-abdominal aorta. The constant RC-time in the pulmonary bed results in proportionality of systolic and diastolic pressure with mean pressure and, in turn, in the constant ratio of oscillatory and mean power.

  13. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... 10 minutes. Okay. Good. We’re in the safety zone. Okay. One important things is that the ... on the coronary artery, and I just, for safety reasons, would like to keep this part. We’ ...

  14. Who Needs Coronary Artery Bypass Grafting?

    Science.gov (United States)

    ... Rehabilitation Coronary Heart Disease Heart Attack Heart Surgery Percutaneous Coronary Intervention Send a link to NHLBI to someone by ... coronary arteries that can't be treated with percutaneous coronary intervention (PCI), also known as coronary angioplasty. Your doctor ...

  15. TECAB - Totally Endoscopic Coronary Artery Bypass

    Science.gov (United States)

    ... of the patient’s artery is, could be near occlusive, and we want to continue profusing the leg ... It’s very helpful. It’s like a pilot is training in a simulator. The postage is also very ...

  16. Ischemic stroke: carotid and vertebral artery disease

    Energy Technology Data Exchange (ETDEWEB)

    Vilela, P.; Goulao, A. [Hospital Garcia de Orta, Servico de Neurorradiologia, Almada (Portugal)

    2005-03-01

    Ischemic strokes may have distinct aetiologies, including several different intrinsic arterial pathological disorders. The diagnosis and understanding of these arterial diseases is critical for the correct management of stroke as different treatment approaches are undertaken according to the aetiology. Atherosclerosis is by far the most common arterial disease among adults, and other pathological processes include arterial dissection, small vessel disease, inflammatory and non-inflammatory vasculopathy and vasomotor disorders. In children, there are several vasculopathies responsible for vaso-occlusive disease such as sickle-cell anemia, acute regressive angiopathy and Moya-Moya disease, neurofibromatosis, dissections, vasculitis associated with intracranial and systemic infections. An overview of the major carotid and vertebral pathological diseases responsible for ischemic stroke in adults and children, highlighting the accuracy of the different imaging modalities for its diagnosis and the imaging appearance of these diseases, is given. (orig.)

  17. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... Artery Bypass June 10, 2009 Welcome to the University of Maryland Medical Center in Baltimore, where you ... to Maryland. Welcome to Baltimore. Welcome to the University of Maryland Medical Center here in OR-26. ...

  18. Atherosclerosis and the internal mammary arteries

    International Nuclear Information System (INIS)

    One hundred and fifty patients with coronary artery disease (CAD), 14 (9.3%) of whom had coexisting peripheral vascular disease, underwent bilateral internal mammary arteriography to study the incidence and extent of atherosclerosis in these vessels. Significant atherosclerosis of the internal mammary arteries (IMAs) was present in three patients (2%), of whom one had coexisting peripheral vascular disease. Lesions in the IMAs were found either proximally, close to the origin or distally, around the terminal bifurcation. Six of the 14 patients with peripheral vascular disease (4% of total subjects) had significant atherosclerosis of the brachiocephalic arteries. Atherosclerotic involvement of the IMA is very unusual and rarely interferes with the use of these vessels for coronary bypass. More common, however, is atherosclerosis of the subclavian arteries, a contraindication for IMA grafting if the lesion is proximal to the IMA origin. (orig.)

  19. Arterial segmental vasoconstriction in hypercholesterolaemic patients

    International Nuclear Information System (INIS)

    Regular, wave-like constriction in medium-sized arteries, arterial segmental vasoconstriction (ASV), has been observed at arteriography and described by many authors. We found ASV in arteriograms of the superficial femoral artery in 13 of 107 hypercholesterolaemic patients, enrolled in the Probucol Quantitative Regression Swedish Trial (PQRST). The arteriograms were digitized and studied with a quantitative computer-assisted technique. The frequency of ASV was higher than has been reported earlier in clinical materials, possibly because of an increased vasoreactivity in hypercholesterolaemia, as recently observed experimentally. The ASV patients were, on average, younger, had lower blood pressure and less atherosclerosis, than the non-ASV patients. ASV was not found in any of the 19 patients in the material who either had symptoms of peripheral vascular disease or arteriographically verified arterial occlusions. No significant correlations with smoking habits or serum cholesterol levels were found. A computer-based index of ASV and measurement of ASV wavelength are discussed. (orig.)

  20. Angiographic Evaluation of Popliteal Artery Trauma

    Directory of Open Access Journals (Sweden)

    H.Gh. Nosratinia

    2007-05-01

    Full Text Available Background and Objective: Popliteal artery injuries are uncommon in developed countries, but it may be common in our country and is associated with poor rates of limb salvage, as well as high levels of morbid-ity. The aim of the present study was to determine the causes of popliteal artery injuries. Materials and Methods: Twenty patients with pop-liteal artery injuries during 3.5 years were studied by angiography in Imam Khomeini Hospital of Tabriz. Results: There were 18 male and two female patients with a median age of 34/00±15/68 years (range 15 – 70 years. The most common cause of trauma in this study was traffic accidents and the most common in-jury was complete occlusion. Conclusion: Popliteal artery injuries are more com-mon in our country and the most common cause is blunt trauma, especially motorcycle accidents.

  1. TECAB - Totally Endoscopic Coronary Artery Bypass

    Medline Plus

    Full Text Available ... is pictures of the coronary arteries, by injecting dye into them, which we normally do in a ... Okay. Now we’re going to fill with dye and we’re going to take our picture. ...

  2. Types of Coronary Artery Bypass Grafting

    Science.gov (United States)

    ... best option for you based on your needs. Traditional Coronary Artery Bypass Grafting Traditional CABG is used when at least one major ... Grafting This type of CABG is similar to traditional CABG because the chest bone is opened to ...

  3. Aortic aneurysm secondary to umbilical artery catheterization

    International Nuclear Information System (INIS)

    A 14-month-girl presented with an asymptomatic posterior mediastinal mass. She had a history of prematurity, umbilical artery catheterization, and sepsis. The diagnosis of aortic aneurysm was made by dynamic computed tomography. The aneurysm was successfully resected. (orig.)

  4. Early Arterial Ischemic Stroke in Premature Infants

    Directory of Open Access Journals (Sweden)

    J Gordon Millichap

    2008-05-01

    Full Text Available Presentation, clinical course, and outcomes for 23 premature children with arterial ischemic stroke before 44 weeks gestational age are reported from Riley Hospital for Children, Indianapolis, IN.

  5. MORPHOMETRIC STUDY OF THE RIGHT CORONARY ARTERY

    OpenAIRE

    El Sayed S. Atta-Alla; Ezzat A. El Sawa; Ahmed E.S. Atta-Alla; Ezdihar A. El Baassiri; Khodor Haidar Hassan

    2015-01-01

    Introduction: The anatomy of the coronary arteries is fascinating and most varied. The aim of the present work was to study the gross anatomy of the right coronary artery (RCA) regarding its importance for interventional cardiologists and cardiac surgeons. Materials and Methods: The material of the present study included 30 preserved hearts obtained from the dissecting rooms of anatomy departments, Faculty of Medicine, Beirut Arab University and Alexandria University. Results: Present s...

  6. Computer simulation of the carotid artery

    OpenAIRE

    Santos, A.; Sousa, L. de; Tavares, J.; Santos, R.; Castro, P.; Azevedo, E.

    2012-01-01

    Background: Disturbed flow conditions at the bifurcation of common carotid artery and proximal internal carotid artery plays an important role in the development of local atherosclerotic plaques, which are important causes of stroke. Being able to build 3D models based on ultrasound imaging can improve diagnostic assessment and support interventions like endarterectomy or carotid stenting. Our aim was to describe a carotid segmentation algorithm to build these 3D models.Methods: We developed ...

  7. Mammographically Detectable Breast Arterial Calcification and Atherosclerosis

    OpenAIRE

    Shah, Neeraj; Chainani, Vinod; Delafontaine, Patrice; Abdo, Abir; Lafferty, James; Rafeh, Nidal Abi

    2014-01-01

    Breast arterial calcification (BAC), observed as an incidental finding on screening mammograms, represents degenerative calcific changes occurring in the mammary arteries, with increasing age. The aim of this review is to discuss relevant literature examining relation between BAC and atherosclerosis. After a thorough literature search, in OVID and PubMed, 199 studies were identified, of which 25 were relevant to our review. Data were abstracted from each study and statistical analysis was don...

  8. Internal carotid artery dissection following rigid esophagoscopy

    OpenAIRE

    Ricchetti, Alma Paola; Becker, Minerva; Dulguerov, Pavel

    1999-01-01

    A case of internal carotid artery dissection that developed after rigid esophagoscopy is described. The diagnosis was suggested by the clinical presentation and confirmed by the findings of radiological examinations. Internal carotid artery dissection is a rare condition of controversial etiology. Most frequently, the cause is unknown and the condition is termed idiopathic. A few cases have occurred after forceful cervical extensions and manipulations. The pathogenesis in our case is uncertai...

  9. Cervical Artery Dissection: Emerging Risk Factors

    OpenAIRE

    Micheli, S.; Paciaroni, M; Corea, F; Agnelli, G.; M. Zampolini; Caso, V

    2010-01-01

    Cervical artery dissection (CAD) represents an increasingly recognized cause of stroke and the most common cause of ischemic stroke in young adults. Many factors have been identified in association with CAD such as primary disease of arterial wall (fibrodysplasia) and other non-specific diseases related to CAD like Ehlers Danlos-syndrome IV, Marfan’s syndrome, vessel tortuosity. Moreover, an underlying arteriopathy which could be in part genetically determined, has been suspected. The rule of...

  10. Splenic artery aneurysm rupture in pregnancy

    International Nuclear Information System (INIS)

    Rupture of a splenic artery aneurysm, commonly associated with pregnancy is a rare and catastrophic event. We report here a case of a patient in her second pregnancy who presented with a short history of left hypochondriac and epigastric pain, followed by collapse at 32 weeks gestation. Sudden fetal distress lead to emergency caesarean delivery when splenic artery aneurysm rupture was diagnosed. With timely involvement of multidisciplinary personnel both mother and baby survived and had an uneventful recovery. (author)

  11. An Update on Pulmonary Arterial Hypertension

    OpenAIRE

    Wapner, Joanna; Matura, Lea Ann

    2015-01-01

    Pulmonary arterial hypertension (PAH) is a progressive disease that ultimately leads to right heart failure and death. PAH is defined as a mean pulmonary arterial pressure ≥ 25 mm Hg with a pulmonary capillary wedge pressure ≤ 15 mm Hg at rest. The diagnosis of PAH is one of exclusion; diagnostics include an extensive history, serology, chest radiograph, pulmonary function tests, ventilation/perfusion scan, transthoracic echocardiogram, and right heart catheterization. Treatment and care of p...

  12. Interesting Basis of Vertebrobasilar Arterial Territory

    OpenAIRE

    Kavian Ghandehari; Kosar Ghandehari

    2012-01-01

    Background: Vertebrobasilar arterial territory nourishes one-quarter of human brain. It constitutes some vital and strategic parts of the central nervous system.Methods: A number of keywords (vertebral, basilar, artery, and territory) were searched in MEDLINE (Ovid and PubMed) as well as Google, ProQuest, Scopus, Cochrane Library, and Science Direct online electronic search engines. Only articles containing all keywords were included. The final search was performed on October, 1, 2012. We als...

  13. Branch retinal artery occlusion in Susac's syndrome

    Directory of Open Access Journals (Sweden)

    Ricardo Evangelista Marrocos de Aragão

    2015-02-01

    Full Text Available Susac's syndrome is a rare disease attribuited to a microangiopathy involving the arterioles of the cochlea, retina and brain. Encefalopathy, hearing loss, and visual deficits are the hallmarks of the disease. Visual loss is due to multiple, recurrent branch arterial retinal occlusions. We report a case of a 20-year-old women with Susac syndrome presented with peripheral vestibular syndrome, hearing loss, ataxia, vertigo, and vision loss due occlusion of the retinal branch artery.

  14. Conduits for Coronary Bypass: Internal Thoracic Artery

    OpenAIRE

    Barner, Hendrick B.

    2012-01-01

    This second report in the series on coronary artery bypass presents the authors experience and personal views on the internal thoracic artery (ITA) which date to 1966. There has been a very gradual evolution in the acceptance of this conduit which was initially compared with the saphenous vein and viewed as an improbable alternative to it. As is common with concepts and techniques which are 'outside the box' there was skepticism and criticism of this new conduit which was more difficult and t...

  15. Physical inactivity and arterial stiffness in COPD

    OpenAIRE

    Sievi NA; Franzen D; Kohler M.; Clarenbach CF

    2015-01-01

    Noriane A Sievi,1 Daniel Franzen,1 Malcolm Kohler,1,2 Christian F Clarenbach1 1Division of Pulmonology, University Hospital of Zurich, 2Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland Background: Arterial stiffness is an important predictor of cardiovascular risk besides classic cardiovascular risk factors. Previous studies showed that arterial stiffness is increased in patients with COPD compared to healthy controls and exercise training may reduce ...

  16. PERIPHERAL ARTERIAL DISEASE IN THE LEG

    OpenAIRE

    Nair P; Justin; Vinu C

    2014-01-01

    INTRODUCTION: Peripheral arterial disease (PAD) is a condition characterized by atherosclerotic occlusive disease of the lower extremities. While PAD is a major risk factor for lower-extremity amputation, it is also accompanied by a high likelihood for symptomatic cardiovascular and cerebrovascular disease. Atherosclerosis accounts for more than 90% of cases of PAD, and uncommon vascular syndromes account for the remaining 10%. The femoral and popliteal arteries are affected in 80% to 90% of ...

  17. Changing blood flow in peripheral artery disease

    OpenAIRE

    Borne, P. van den

    2014-01-01

    Cardiovascular disease (CVD) is the leading cause of death globally and it is predicted this will remain to increase throughout 2030 to an estimated 23,3 million patients per year. This trend is accompanied by a steep increase in healthcare costs, making it a great health and socio-economic burden. The underlying pathology of CVD is often atherosclerosis, characterized by the development of atherosclerotic plaques in middle- and larger-sized arteries. Peripheral artery disease (PAD) is a dise...

  18. Elastomeric PGS scaffolds in arterial tissue engineering.

    Science.gov (United States)

    Lee, Kee-Won; Wang, Yadong

    2011-01-01

    Cardiovascular disease is one of the leading cause of mortality in the US and especially, coronary artery disease increases with an aging population and increasing obesity. Currently, bypass surgery using autologous vessels, allografts, and synthetic grafts are known as a commonly used for arterial substitutes. However, these grafts have limited applications when an inner diameter of arteries is less than 6 mm due to low availability, thrombotic complications, compliance mismatch, and late intimal hyperplasia. To overcome these limitations, tissue engineering has been successfully applied as a promising alternative to develop small-diameter arterial constructs that are nonthrombogenic, robust, and compliant. Several previous studies have developed small-diameter arterial constructs with tri-lamellar structure, excellent mechanical properties and burst pressure comparable to native arteries. While high tensile strength and burst pressure by increasing collagen production from a rigid material or cell sheet scaffold, these constructs still had low elastin production and compliance, which is a major problem to cause graft failure after implantation. Considering these issues, we hypothesized that an elastometric biomaterial combined with mechanical conditioning would provide elasticity and conduct mechanical signals more efficiently to vascular cells, which increase extracellular matrix production and support cellular orientation. The objective of this report is to introduce a fabrication technique of porous tubular scaffolds and a dynamic mechanical conditioning for applying them to arterial tissue engineering. We used a biodegradable elastomer, poly (glycerol sebacate) (PGS) for fabricating porous tubular scaffolds from the salt fusion method. Adult primary baboon smooth muscle cells (SMCs) were seeded on the lumen of scaffolds, which cultured in our designed pulsatile flow bioreactor for 3 weeks. PGS scaffolds had consistent thickness and randomly distributed macro

  19. Anterior Tibial Artery Pseudoaneurysm: Case Report

    Directory of Open Access Journals (Sweden)

    Funda Tor

    2012-06-01

    Full Text Available The aneurysmsatic changes of the infrapopliteal arteries are rarely seen. They are pseudoaneurysms rather than true aneursyms. The most important cause of them is trauma. There is not a standart treatment for infrapopliteal aneursyms. In this study, we have evaluated a case operated for anterior tibial artery pseudoaneurysm developed after penetrant trauma and diagnosed two weeks later. [Cukurova Med J 2012; 37(3.000: 172-175

  20. Hepatic artery pseudoaneurysm following laparoscopic cholecystectomy

    International Nuclear Information System (INIS)

    The authors describe a hepatic pseudoaneurysm following laparoscopic cholecystectomy in a child. It arose from a hepatic artery that was ligated during surgery and was supplied by collaterals from the superior right branch. Because of the risk of hepatic infarction and recanalization of the pseudoaneurysm by new collaterals, the authors decided not to occlude the superior right branch, but to embolize the aneurysm itself with cyanoacrylate. Since the intra-arterial approach was not feasible, a transhepatic puncture was successfully performed. (orig.)

  1. Intriguing variations of the tibial arteries and their clinical implications

    OpenAIRE

    Jelev L; Georgiev GP; Atanasova M

    2011-01-01

    Unusual course and branching pattern of the tibial arteries were discovered during routine anatomical dissection of the right lower extremity of a 61-year-old female cadaver. The arteries of the crural region arose from the popliteal artery, as usual. However, the anterior tibial artery was hypoplastic and supplying the anterior calf muscles ended above the ankle joint. Instead, the posterior tibial artery gave off a large anterior branch, which crossed the lowest portion of the interosseous ...

  2. Doppler findings in a rare Coronary Artery Fistula

    OpenAIRE

    Jorns Carl; Jung Christian; Huhta James

    2007-01-01

    Abstract One of the primary forms of congenital anomalies of the coronary arteries is coronary artery fistula (CAF). It is defined as a direct communication between the coronary artery and any surrounding cardiac chamber or vascular structure, which bypasses the myocardial capillary bed. We present a newborn baby with a large coronary artery fistula connecting the left anterior descending (LAD) artery to the left ventricular (LV) apex. Associated cardiac abnormalities were found: a ventricula...

  3. Variant Branching Pattern of Axillary Artery: A Case Report

    OpenAIRE

    Swamy Ravindra Shantakumar; Mohandas Rao, K. G.

    2012-01-01

    During routine dissection of an approximately 50-year-old male cadaver for the undergraduate medical students at Melaka Manipal Medical College, Manipal University, Manipal, we came across a variation in branching pattern of right axillary artery. The second part of axillary artery gave rise to a common trunk which divided into the subscapular and lateral thoracic arteries. The third part of right axillary artery gave rise to anterior and posterior circumflex humeral arteries. Variations in t...

  4. Direct Axillary Arterial Cannulation Using Seldinger's Technique in Aortic Dissection

    OpenAIRE

    Do, Young Woo; Kim, Gun-Jik; Park, Il; Cho, Joon-Yong; Lee, Jong-Tae

    2011-01-01

    Background The axillary artery is frequently used for cardiopulmonary bypass, especially in acute aortic dissection. We have cannulated the axillary artery using a side graft or by directly using Seldinger's technique. The purpose of this study was to assess the technical problems and complications of both cannulation techniques. Materials and Methods From January 2003 to December 2009, 53 patients underwent operations using the axillary artery for arterial cannulation. The axillary artery wa...

  5. Exercício físico e o controle da pressão arterial Ejercício físico y el control de la presion arterial Physical exercise and blood pressure control

    Directory of Open Access Journals (Sweden)

    Maria de Fátima Monteiro

    2004-12-01

    Full Text Available O exercício físico provoca uma série de respostas fisiológicas, resultantes de adaptações autonômicas e hemodinâmicas que vão influenciar o sistema cardiovascular. Diversos estudos demonstraram o seu efeito benéfico sobre a pressão arterial. Sendo a hipertensão arterial sistêmica uma entidade de alta prevalência e elevada morbimortalidade na população, o exercício físico tem importante papel como elemento não medicamentoso para o seu controle ou como adjuvante ao tratamento farmacológico.El ejercicio físico provoca una serie de respuesta fisiológicas, resultantes de adaptaciones autonómicas y hemodinámicas que van a influenciar en el sistema cardiovascular. Diversos estudios demonstraron el efecto benéfico sobre la presión arterial. Siendo así, la hipertensión arterial sistémica una entidad de alta prevalencia y elevada morbi-mortalidad en la población, el ejercicio físico tiene un papel muy importante como elemento no medicamentoso para su control y como adyuvante al tratamiento farmacológico tambien.Physical exercise causes a series of physiological responses resulting from autonomic and hemodynamic adaptation that affect the cardiovascular system. Many studies have demonstrated its beneficial effect on blood pressure. Bearing in mind that hypertension is a very prevalent condition causing high morbidity and mortality rate, the physical exercise plays an important role as a non-drug measure for its control or as an adjuvant to drug treatment.

  6. Hepatocellular carcinoma with extensive hepatic artery injury: transcatheter arterial chemoembolization through collaterals after coil embolizatoin of gastric arteries

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Gab Choul; Yoon, Hyun Ki; Hwang, Jae Cheol; Lee, Duck Hee; Song, Ho Young; Suh, Dong Jin; Lee, Yung Sang; Chung, Young Hwa; Sung, Gyu Bo [Ulsan Univ. College of Medicine, Seoul (Korea, Republic of); Ko, Ki Young [Catholic Univ. College of Medicine, Seoul (Korea, Republic of)

    1999-09-01

    To evaluate the efficacy and safety of transcatheter arterial chemoembolization(TACE) after coil embolization of the gastroduodenal artery in hepatocellular carcinoma cases with multiple collateral arteries caused by proper hepatic artery injury. Between March 1997 and November 1998, a prospective trial of transcatheter arterial chemoembolization (TACE) was performed through collaterals from the gastroduodenal artery of 31 hepatocellular carcinoma patients with extensive proper hepatic artery injury due to repeated TACE. Among this number, 16 (group A) underwent TACE after coil embolization of the right gastric and gastroduodenal artery. The other 15 patients (group B) underwent TACE without coil embolization. The two groups had the same TNM stage and Clild-Pugh status. During the follow-up period, group A underwent additional TACE 3.3 times, and group B 2.8 times. The therapeutic effect of TACE was evaluated with computed tomography and by measuring alpha-fetoprotein levels. Complications were evaluated by means of gastrofibroscopy, laboratory data, and evaluation of the patients' clinical symptoms. The results obtained after six months and one year were compared within and between each group. At six months follow-up, CT findings had improved or were unchanged in 11 patients(69 %) in group A, and four patients(27 %) in group B(p = 0.032). In ten patients in each group, the level of alpha-fetoprotein was above 200 ng/ml. Its level was decreased in five patients(50 %) and three patients(30 %), respectively. The six-month survival rate was 81 % (13/16) in group A and 67% (10/15) in group B (p 0.43), while the one-year survival figures for these two groups were 50 % (8/16) and 20 % (3/15), respectively(p = 0.135). In group A, the CT findings were steady in five out of eight patients(63 %), while in groupB, CT findings showed that tumors with increased alpha-fetoprotein levels had increased in size and/or number. In group A, it was found that in two (33 %) of six

  7. Eficacia de una intervención cognitivo-conductual en el tratamiento de la hipertensión arterial

    OpenAIRE

    Fernández López, Vanesa

    2009-01-01

    Los trastornos cardiovasculares ocupan el primer puesto de la lista de causas de muerte en los países industrializados además de ser un grupo de trastornos que conlleva un largo proceso de recuperación con el consiguiente gasto económico personal y social. La hipertensión arterial (HTA) es uno de los principales factores de riesgo para el padecimiento de este tipo de trastornos que presenta una elevada incidencia en nuestro país. Es por ello, que intervenir sobre la HTA no sólo es abordar un ...

  8. Hipertensión arterial: estudio de conocimientos y adherencia terapeútica en población de Bilbao

    OpenAIRE

    Peña Sáinz de la Maza, Jaione

    2014-01-01

    La hipertensión arterial (HTA) es conocida tanto como una enfermedad como un factor de riesgo cardiovascular. Continúa siendo una de las patologías más frecuentes afectando a más del 20% de la población. A pesar de estas cifras, el nivel de cumplimentación terapéutica es bajo. En este trabajo se estudia, en una muestra de residentes en Bilbao, el grado de conocimiento y la adherencia terapéutica que tienen sobre esta enfermedad. El estudio se realizó en una muestra de 50 pacientes hip...

  9. Endovascular stenting for vertebrobasilar artery stenosis

    International Nuclear Information System (INIS)

    Objective: To summarize the experiences in endovascular stenting for vertebrobasilar artery stenosis, and to discuss its indications, technique, and perioperative management. Methods: Twenty cases presented with recurrent transient ischemic attack or with the history of infarction of posterior circulation territory. Thirteen cases complained of dizziness or headache. The locations of the stenoses were originated at vertebral artery in 13 cases, extracranial segment of vertebral artery in 3 cases, intracranial segment of vertebral artery in 5 cases, and basilar artery in 12 cases. All stenoses were more than 70% in diameter, with 2-12 mm in length. Balloon expended stents (BX, AVES670, EXPRESS, BIODIVESO) were introduced across the stenosis with the support of guide wire. Stents were deployed by inflation of the balloon slowly. Results: There were no procedural and periprocedural complications, and angiographic results showed that the stenoses returned to normal size in 29 cases, while reduced by more than 80% in 4 cases. The patients were asymptomatic and neurologically intact at the clinical follow-up for 3-10 months. Ten cases were followed by angiography, and there was no restenosis. Conclusion: Endovascular stenting for vertebrobasilar artery stenosis is effective and safe. But long-term results need further investigation

  10. Idiopathic Arterial Calcification of Infancy: Case Report.

    Science.gov (United States)

    Attia, Tarek Hamed; Abd Alhamed, Mohamed Maisara; Selim, Mohamed Fouad; Haggag, Mohamed Salah; Fathalla, Diaa

    2015-11-01

    Idiopathic arterial calcification of infancy is a rare autosomal recessive disease, characterized by deposition of calcium along the internal elastic membrane of arteries, accompanied by fibrous thickening of the intima which causes luminal narrowing. Here we are reporting a case of idiopathic arterial calcification of infancy in a Saudi female newborn of non-consanguineous pregnant woman who had polyhydramnios. The newborn baby had severe respiratory distress, systemic hypertension and persistent pulmonary hypertension of newborn. She was admitted to Neonatal Intensive Care Unit, where she was ventilated and proper treatment was provided. Molecular genetic testing was positive for mutations of ectonucleotide pyrophosphatase/phosphodiesterase1 gene which is reported in 80% of cases of Idiopathic arterial calcification of infancy. The baby died at about 5 month of age because of myocardial ischemia and cardiorespiratory arrest. Idiopathic Arterial Calcification of Infancy should be considered in any newborn who presented with persistent pulmonary hypertension of newborn, severe systemic hypertension and echogenic vessels on any radiological study. Calcifications of large and medium-sized arteries are important diagnostic finding. PMID:27252793

  11. How to manage an arterial catheter.

    Science.gov (United States)

    Parry, Andrew; Higginson, Ray

    2016-03-16

    Rationale and key points This article provides nurses with information on the safe and effective use and management of arterial catheters, the gold standard for accurate blood pressure measurement and routine serial blood gas sampling in critical care. Arterial catheters are used when real-time blood pressure monitoring is required, such as when there is a risk of significant blood loss. ▶ Arterial catheters provide real-time blood pressure monitoring, enabling rapid identification of changes in blood pressure and guiding fluid resuscitation. ▶ Arterial catheters can be used to take blood samples without having to perform multiple arterial or venous punctures. Reflective activity Clinical skills articles can help update your practice and ensure it remains evidence based. Apply this article to your practice. Reflect on and write a short account of: 1. How this article will change your practice when managing a patient with an arterial catheter. 2. Any further learning needs you have identified. Subscribers can upload their reflective accounts at: rcni.com/portfolio . PMID:26982866

  12. Microsurgical anatomy of the middle cerebral artery

    Directory of Open Access Journals (Sweden)

    Pai S

    2005-01-01

    Full Text Available Background: The microsurgical anatomy of the middle cerebral artery (MCA is of particular interest to the cerebrovascular surgeon. The purpose of this study was to define the microsurgical anatomy of the MCA and its various branches in the Indian population. Methods: Ten MCAs were studied from five cadaveric brain specimens. The authors studied the outer diameter, length, branches, perforators and site of these on the main trunk (M1, the division of the main trunk, the secondary trunks and their various cortical branches using the operating microscope under 5-20x magnification. Results: The outer diameter of the MCA main trunk ranges from 2.5 to 4 mm with a mean of 3.35 mm. The superolateral branches consisted of polar temporal artery and anterior temporal artery that had a common origin and sometimes the uncal artery or the accessory uncal artery. Perforators or lenticulostriate arteries were seen in the inferomedial surface all along the length of M1. Eight bifurcations and two trifurcations were noted. Cortical branches and their origin are discussed. Conclusion: Although the microsurgical anatomy of the MCA in Indian population correlated with the findings in the western literature, some structural and statistical variations were noted.

  13. Analysis, reconstruction and manipulation using arterial snakes

    KAUST Repository

    Li, Guo

    2010-01-01

    Man-made objects often consist of detailed and interleaving structures, which are created using cane, coils, metal wires, rods, etc. The delicate structures, although manufactured using simple procedures, are challenging to scan and reconstruct. We observe that such structures are inherently 1D, and hence are naturally represented using an arrangement of generating curves. We refer to the resultant surfaces as arterial surfaces. In this paper we approach for analyzing, reconstructing, and manipulating such arterial surfaces. The core of the algorithm is a novel deformable model, called arterial snake, that simultaneously captures the topology and geometry of the arterial objects. The recovered snakes produce a natural decomposition of the raw scans, with the decomposed parts often capturing meaningful object sections. We demonstrate the robustness of our algorithm on a variety of arterial objects corrupted with noise, outliers, and with large parts missing. We present a range of applications including reconstruction, topology repairing, and manipulation of arterial surfaces by directly controlling the underlying curve network and the associated sectional profiles, which are otherwise challenging to perform. © 2010 ACM.

  14. Idiopathic aneurysm of pulmonary artery

    Energy Technology Data Exchange (ETDEWEB)

    Pacheco, Julio B. Cota; Pimentel, Patricia N.; Knust, Beatriz S., E-mail: jcota@uol.com.br [Clinica de Cardiologia Cota Pacheco, Mogi das Cruzes, SP (Brazil)

    2015-07-15

    Because it is a very rare isolated lesion, we decided to present this case of idiopathic pulmonary artery aneurysm (IPAA) and review the cases published in the literature in order to correlate our clinical and imaging findings, as well as management based on patient data. IPAA was first described in a case of autopsy by Bristowe in 1860 and later in 1947 by Deterling and Claggett, whose prevalence was lower than eight to one hundred thousand. Although the use of diagnostic imaging methods has been applied in a very large population in recent decades, this lesion has been most often described in postmortem examinations. Therefore, it is important to be aware of possible clinical symptoms, at times non-specific, as well as the signs on imaging studies. In this study, therefore, the report of a case of an asymptomatic patient whose diagnosis was done through color Doppler echocardiography in a routine test in 2012, later confirmed by simple chest computed tomography (chest CT) and cardiac catheterization as IPAA and its branches. We discussed the literature available and the possibilities for treatment and the use of color Doppler echocardiography as an initial diagnostic tool for such a rare and intriguing disease. (author)

  15. Idiopathic aneurysm of pulmonary artery

    International Nuclear Information System (INIS)

    Because it is a very rare isolated lesion, we decided to present this case of idiopathic pulmonary artery aneurysm (IPAA) and review the cases published in the literature in order to correlate our clinical and imaging findings, as well as management based on patient data. IPAA was first described in a case of autopsy by Bristowe in 1860 and later in 1947 by Deterling and Claggett, whose prevalence was lower than eight to one hundred thousand. Although the use of diagnostic imaging methods has been applied in a very large population in recent decades, this lesion has been most often described in postmortem examinations. Therefore, it is important to be aware of possible clinical symptoms, at times non-specific, as well as the signs on imaging studies. In this study, therefore, the report of a case of an asymptomatic patient whose diagnosis was done through color Doppler echocardiography in a routine test in 2012, later confirmed by simple chest computed tomography (chest CT) and cardiac catheterization as IPAA and its branches. We discussed the literature available and the possibilities for treatment and the use of color Doppler echocardiography as an initial diagnostic tool for such a rare and intriguing disease. (author)

  16. PSEUDOANEURYSM OF INTERNAL ILIAC ARTERY

    Directory of Open Access Journals (Sweden)

    Seema Khanna

    2014-04-01

    Full Text Available An unusual cause of vaginal beeding after total abdominal hysterectomy is being reported. Histopathology revealed adenomyosis uteri and bilateral ovarian cyst. On examination there was a single lump in the hypogastrium and left iliac fossa. Auscultation revealed a faint continuous hum. On digital rectal examination, a bulge was felt, while per vaginum examination revealed mucosal congestion and bulging of mucosa. Ultrasound revealed a mass posterior to the urinary bladder. Duplex study demonstrated the yin-yang sign suggestive of a pseudo-aneurysm .CT Angiography was confirmatory and demonstrated a pseudoaneurysm arising from the left internal iliac artery. Patient underwent surgery.Postoperative period was uneventful . The commonest cause of IIA aneurysm is atherosclerosis. Other causes are arteritis ,collagen vascular disease, infection, trauma. An important subgroup is young females, who have undergone difficult delivery, forceps delivery or caesarian section or abdominal hysterectomy IIA aneurysms are usually discovered incidentally on pelvic imaging for any other indication. Surgery is the mainstay of treatment but endovascular procedures are gaining ground . [Natl J Med Res 2014; 4(2.000: 181-182

  17. Calculation of arterial wall temperature in atherosclerotic arteries: effect of pulsatile flow, arterial geometry, and plaque structure

    Directory of Open Access Journals (Sweden)

    Kim Taehong

    2007-03-01

    Full Text Available Abstract Background This paper presents calculations of the temperature distribution in an atherosclerotic plaque experiencing an inflammatory process; it analyzes the presence of hot spots in the plaque region and their relationship to blood flow, arterial geometry, and inflammatory cell distribution. Determination of the plaque temperature has become an important topic because plaques showing a temperature inhomogeneity have a higher likelihood of rupture. As a result, monitoring plaque temperature and knowing the factors affecting it can help in the prevention of sudden rupture. Methods The transient temperature profile in inflamed atherosclerotic plaques is calculated by solving an energy equation and the Navier-Stokes equations in 2D idealized arterial models of a bending artery and an arterial bifurcation. For obtaining the numerical solution, the commercial package COMSOL 3.2 was used. The calculations correspond to a parametric study where arterial type and size, as well as plaque geometry and composition, are varied. These calculations are used to analyze the contribution of different factors affecting arterial wall temperature measurements. The main factors considered are the metabolic heat production of inflammatory cells, atherosclerotic plaque length lp, inflammatory cell layer length lmp, and inflammatory cell layer thickness dmp. Results The calculations indicate that the best location to perform the temperature measurement is at the back region of the plaque (0.5 ≤ l/lp ≤ 0.7. The location of the maximum temperature, or hot spot, at the plaque surface can move during the cardiac cycle depending on the arterial geometry and is a direct result of the blood flow pattern. For the bending artery, the hot spot moves 0.6 millimeters along the longitudinal direction; for the arterial bifurcation, the hot spot is concentrated at a single location due to the flow recirculation observed at both ends of the plaque. Focusing on the

  18. Superselective intra-arterial infusion via the superficial temporal artery and occipital artery for gingival carcinoma of the mandible. Simultaneous catheter placement to the maxillary artery and facial artery

    International Nuclear Information System (INIS)

    Superselective intra-arterial infusion via the superficial temporal artery (STA) has become useful for oral cancer. Approaching via the occipital artery (OA) enables superselective intra-arterial infusion when catheter placement via the STA is impossible. Therefore, simultaneous catheter placement via the STA and OA is possible. We report a surgical method of simultaneous catheter placement via the STA and OA to achieve retrograde superselective intra-arterial infusion for gingival carcinoma of the mandible. Preoperatively, three-dimensional computed tomography angiography was performed to identify the route of the external carotid artery and branches such as the STA, OA, maxillary artery, and facial artery (FA). Thirteen patients with mandibular gingival cancer underwent catheter placement via the STA and OA under local anesthesia. Catheter placement via the STA and OA was superselectively successful in all the patients. The mean operating time was 150.8 min. Catheter placed to the FA via the OA was dislocated during the treatment in one patient, and so the catheter was replaced. This method is useful to enable superselective intra-arterial chemotherapy to the whole gingival carcinoma of the mandible from the start of treatment compared with approaching via the STA. (author)

  19. Feasibility Study of Ex Ovo Chick Chorioallantoic Artery Model for Investigating Pulsatile Variation of Arterial Geometry.

    Directory of Open Access Journals (Sweden)

    Kweon-Ho Nam

    Full Text Available Despite considerable research efforts on the relationship between arterial geometry and cardiovascular pathology, information is lacking on the pulsatile geometrical variation caused by arterial distensibility and cardiomotility because of the lack of suitable in vivo experimental models and the methodological difficulties in examining the arterial dynamics. We aimed to investigate the feasibility of using a chick embryo system as an experimental model for basic research on the pulsatile variation of arterial geometry. Optical microscope video images of various arterial shapes in chick chorioallantoic circulation were recorded from different locations and different embryo samples. The high optical transparency of the chorioallantoic membrane (CAM allowed clear observation of tiny vessels and their movements. Systolic and diastolic changes in arterial geometry were visualized by detecting the wall boundaries from binary images. Several to hundreds of microns of wall displacement variations were recognized during a pulsatile cycle. The spatial maps of the wall motion harmonics and magnitude ratio of harmonic components were obtained by analyzing the temporal brightness variation at each pixel in sequential grayscale images using spectral analysis techniques. The local variations in the spectral characteristics of the arterial wall motion were reflected well in the analysis results. In addition, mapping the phase angle of the fundamental frequency identified the regional variations in the wall motion directivity and phase shift. Regional variations in wall motion phase angle and fundamental-to-second harmonic ratio were remarkable near the bifurcation area. In summary, wall motion in various arterial geometry including straight, curved and bifurcated shapes was well observed in the CAM artery model, and their local and cyclic variations could be characterized by Fourier and wavelet transforms of the acquired video images. The CAM artery model with

  20. Feeding Arteries of Primary Tongue Cancers on Intra-arterial Infusion Chemotherapy

    Energy Technology Data Exchange (ETDEWEB)

    Kamitani, Takeshi, E-mail: kamitani@radiol.med.kyushu-u.ac.jp [Kyushu University, Department of Clinical Radiology, Graduate School of Medical Sciences (Japan); Kawanami, Satoshi, E-mail: kawanami-01@mac.com [Kyushu University, Department of Molecular Imaging and Diagnosis, Graduate School of Medical Sciences (Japan); Asayama, Yoshiki, E-mail: asayama@radiol.med.kyushu-u.ac.jp; Matsuo, Yoshio, E-mail: yymatsuo@radiol.med.kyushu-u.ac.jp; Yonezawa, Masato, E-mail: ymasato@radiol.med.kyushu-u.ac.jp; Yamasaki, Yuzo, E-mail: yyama@radiol.med.kyushu-u.ac.jp [Kyushu University, Department of Clinical Radiology, Graduate School of Medical Sciences (Japan); Nagao, Michinobu, E-mail: minagao@radiol.med.kyushu-u.ac.jp [Kyushu University, Department of Molecular Imaging and Diagnosis, Graduate School of Medical Sciences (Japan); Yamanouchi, Torahiko, E-mail: tora0228@radiol.med.kyushu-u.ac.jp [Kyushu University, Department of Clinical Radiology, Graduate School of Medical Sciences (Japan); Yabuuchi, Hidetake, E-mail: h-yabu@med.kyushu-u.ac.jp [Kyushu University, Department of Health Sciences, Graduate School of Medical Sciences (Japan); Nakamura, Katsumasa, E-mail: nakam@radiol.med.kyushu-u.ac.jp [Kyushu University, Department of Clinical Radiology, Graduate School of Medical Sciences (Japan); Nakashima, Torahiko, E-mail: nakatora@qent.med.kyushu-u.ac.jp [Kyushu University, Department of Otorhinolaryngology, Graduate School of Medical Sciences (Japan); Honda, Hiroshi, E-mail: honda@radiol.med.kyushu-u.ac.jp [Kyushu University, Department of Clinical Radiology, Graduate School of Medical Sciences (Japan)

    2016-02-15

    PurposeTo evaluate the frequency and the predictive factor of each feeding artery on intra-arterial infusion chemotherapy (IAIC) in primary tongue cancer.Materials and MethodsWe retrospectively evaluated 20 patients who received IAIC for primary tongue cancer. The main and accompanying feeding arteries were identified on super-selective angiography of the branches of the external carotid artery. Tumor diameter, and extension to the contralateral side, tongue extrinsic muscles (TEMs), and lateral mesopharyngeal wall were determined based on magnetic resonance imaging or computed tomography findings.ResultsThe main feeding artery was the ipsilateral lingual artery (LA) in 15 of the 20 examined tumors and the contralateral LA in the other 5. Ten cancers had only one feeding artery, and multiple feeding arteries were detected in the remaining 10. Tumors >4 cm (n = 9), those with extension to the contralateral side (n = 13), and those with extension to TEMs (n = 15) were supplied by significantly larger numbers of feeding arteries compared to tumors without these features (P = 0.01, 0.049, and 0.02, respectively). The frequency of feeding from the contralateral LA was 64 % (9/14) and 17 % (1/6) in tumors with and without extension to the contralateral side, respectively. Feeding from a facial artery (FA) was not detected in tumors ≤4 cm, while 5 of the 9 (56 %) tumors >4 cm were supplied by a FA (P = 0.01).ConclusionA careful search for feeding arteries is required, especially in large tumors with extension to the contralateral side or to TEMs.

  1. Dynamic contrast-enhanced ultrasound and transient arterial occlusion for quantification of arterial perfusion reserve in peripheral arterial disease

    Energy Technology Data Exchange (ETDEWEB)

    Amarteifio, E., E-mail: erick.amarteifio@med.uni-heidelberg.de [University Hospital of Heidelberg, Department of Diagnostic and Interventional Radiology, Heidelberg (Germany); Department of Radiology, German Cancer Research Center, Heidelberg (Germany); Wormsbecher, S. [University Hospital of Heidelberg, Department of Diagnostic and Interventional Radiology, Heidelberg (Germany); Department of Radiology, German Cancer Research Center, Heidelberg (Germany); Krix, M. [University Hospital of Heidelberg, Department of Diagnostic and Interventional Radiology, Heidelberg (Germany); Department of Radiology, German Cancer Research Center, Heidelberg (Germany); Bracco Imaging Germany, Konstanz (Germany); Demirel, S. [University Hospital of Heidelberg, Department of Vascular Surgery, Heidelberg (Germany); Braun, S. [Department of Biostatistics, German Cancer Research Center, Heidelberg (Germany); Delorme, S. [Department of Radiology, German Cancer Research Center, Heidelberg (Germany); Boeckler, D. [University Hospital of Heidelberg, Department of Vascular Surgery, Heidelberg (Germany); Kauczor, H.-U. [University Hospital of Heidelberg, Department of Diagnostic and Interventional Radiology, Heidelberg (Germany); Weber, M.-A. [University Hospital of Heidelberg, Department of Diagnostic and Interventional Radiology, Heidelberg (Germany); Department of Radiology, German Cancer Research Center, Heidelberg (Germany)

    2012-11-15

    Objective: To quantify muscular micro-perfusion and arterial perfusion reserve in peripheral arterial disease (PAD) with dynamic contrast-enhanced ultrasound (CEUS) and transient arterial occlusion. Materials and methods: This study had local institutional review board approval and written informed consent was obtained from all subjects. We examined the dominant lower leg of 40 PAD Fontaine stage IIb patients (mean age, 65 years) and 40 healthy volunteers (mean age, 54 years) with CEUS (7 MHz; MI, 0.28) during continuous intravenous infusion of 4.8 mL microbubbles. Transient arterial occlusion at mid-thigh level simulated physical exercise. With time-CEUS-intensity curves obtained from regions of interest within calf muscles, we derived the maximum CEUS signal after occlusion (max) and its time (t{sub max}), slope to maximum (m), vascular response after occlusion (AUC{sub post}), and analysed accuracy, receiver operating characteristic (ROC) curves, and correlations with ankle-brachial index (ABI) and walking distance. Results: All parameters differed in PAD and volunteers (p < 0.014). In PAD, t{sub max} was delayed (31.2 {+-} 13.6 vs. 16.7 {+-} 8.5 s, p < 0.0001) and negatively correlated with ankle-brachial-index (r = -0.65). m was decreased in PAD (4.3 {+-} 4.6 mL/s vs. 13.1 {+-} 8.4 mL/s, p < 0.0001) and had highest diagnostic accuracy (sensitivity/specificity, 75%/93%) for detection of diminished muscular micro-perfusion in PAD (cut-off value, m < 5{approx}mL/s). Discriminant analysis and ROC curves revealed m, and AUC{sub post} as optimal parameter combination for diagnosing PAD and therefore impaired arterial perfusion reserve. Conclusions: Dynamic CEUS with transient arterial occlusion quantifies muscular micro-perfusion and arterial perfusion reserve. The technique is accurate to diagnose PAD.

  2. Valor do escore de calcio coronariano para prever a gravidade ou complexidade da doenca arterial coronariana

    Directory of Open Access Journals (Sweden)

    Tayyar Gokdeniz

    2014-03-01

    Full Text Available FUNDAMENTO: A previsão de gravidade ou complexidade da doença arterial coronariana (DAC é valiosa devido ao aumento do risco de eventos cardiovasculares. Embora a associação entre o escore do cálcio arterial coronariano (CAC, e a gravidade da DAC pelo escore Gensini não tenha sido utilizado, já foi anteriormente demonstrado. Não há informações sobre a associação entre o escore do CAC total e a complexidade da DAC. OBJETIVOS: Investigar a associação entre a gravidade ou complexidade da doença arterial coronariana (DAC, avaliada pelo escore Gensini e SYNTAX (SS, respectivamente, e o escore do cálcio arterial coronariano (CAC, um método não invasivo para avaliação de DAC em pacientes sintomáticos com DAC significativa. MÉTODOS: Duzentos e quatorze pacientes foram incluídos. A pontuação total do CAC foi obtido antes da angiografia. A severidade e complexidade da DAC foram avaliadas pelo escore Gensini e SS, respectivamente. Foram analisadas as associações entre parâmetros clínicos e angiográficos e o escore total do CAC. RESULTADOS: A mediana do escore total do CAC foi de 192 (23,0-729,8, e correlacionou-se positivamente com ambos os escores Gensini (r: 0,299, p 809 para ES > 32 (tercil de SS alto. CONCLUSÃO: Em pacientes sintomáticos com DAC significativa, o escore total de CAC foi independentemente associado com SS e os pacientes com SS > 32 podem ser detectados através de escore Agatston alto.

  3. Typology of the arteries in the human scalenus region, with special reference to the accessory ascending cervical artery.

    OpenAIRE

    Su WD; Ohtsuka A; Taguchi T; Murakami T.

    2000-01-01

    The accessory ascending cervical artery (Murakami et al., 1996), which arises from the subclavian artery and ascends between the scalenus anterior and medius muscles, was studied in 87 Japanese adult cadavers (174 sides), with special attention being given to its origin, distribution, and relationship to other arteries at the cervical or scalenus region. In 154 sides (88.5%), the accessory ascending cervical artery was found to originate from the subclavian artery behind the scalenus anterior...

  4. Treinamento resistido controla a pressão arterial de ratos hipertensos induzidos por l-NAME Resistance training controls arterial blood pressure in rats with L-NAME- induced hypertension

    Directory of Open Access Journals (Sweden)

    Ayslan Jorge Santos de Araujo

    2013-04-01

    Full Text Available FUNDAMENTO: A hipertensão arterial é uma síndrome multifatorial, crônica, causada tanto por fatores congênitos ou adquiridos. OBJETIVO: Avaliar os efeitos do treinamento físico resistido (TR sobre pressão arterial, reatividade e morfologia vascular de ratos hipertensos induzidos por L-NAME. MÉTODOS: Ratos Wistar machos (200-250 g foram divididos em 3 grupos: normotenso sedentário (NS, hipertenso sedentário (HS e hipertenso treinado (HT. A hipertensão foi induzida pela administração de L-NAME (40 mg/kg na água de beber por 4 semanas. A pressão arterial foi avaliada antes e após o TR. O TR foi realizado utilizando 50% de 1RM, em 3 séries de 10 repetições, 3 vezes por semana, durante quatro semanas. A reatividade vascular foi mensurada em artéria mesentérica superior por curvas concentração resposta ao nitroprussiato de sódio (NPS e fenilefrina (FEN. Além disso, foram realizadas análises histológicas e estereológicas. RESULTADOS: O TR inibiu o aumento das pressões arteriais média e diastólica. Foi observada uma redução significativa na resposta máxima e na potência da FEN entre os grupos HS e HT. A análise histológica evidenciou aspecto normal para as túnicas íntima, média e adventícia em todos os grupos. Não houve diferença significativa nas áreas do lúmen, da túnica média e total das artérias dos grupos HS e HT em relação ao NS. A razão parede/lúmen arterial do grupo HS apresentou diferença significativa em relação ao NS (p BACKGROUND: Arterial hypertension is a multifactorial chronic condition caused by either congenital or acquired factors. OBJECTIVE: To evaluate the effects of Resistance Training (RT on arterial pressure, and on vascular reactivity and morphology, of L-NAME-treated hypertensive rats. METHODS: Male Wistar rats (200 - 250 g were allocated into Sedentary Normotensive (SN, Sedentary Hypertensive (SH and Trained Hypertensive (TH groups. Hypertension was induced by adding L

  5. Diferentes visões sobre a cidade

    Directory of Open Access Journals (Sweden)

    Veriano Takuji Miura

    2010-06-01

    Full Text Available A paisagem urbana sempre exerceu um fascínio sobre os homens. Ela tem sido, ao mesmo tempo, sonho e pesadelo de um tempo. Em diferentes momentos, a paisagem urbana tem sido abordada de modo a expressar as singularidades de seu tempo. Nesse sentido, o objetivo deste artigo é trazer uma discussão sobre as diferentes visões da cidade propostas por acadêmicos, cineastas e romancistas. Desde a visão romantizada das cidades da Idade Média, de Ítalo Calvino, até as “cidades virtuais” de Pierre Lévy, destaca-se o longo percurso da chamada “aventura da modernidade”.

  6. El problema de Steklov sobre el cono

    OpenAIRE

    Óscar Andrés Montaño Carreño

    2012-01-01

    Sea (Mn, g) un cono de altura 0 ≤ xn+1 ≤ 1 en R n+1, dotado con una métrica rotacionalmente invariante 2ds2 + f 2 (s)dw2 , donde dw2 representa la métrica estándar sobre S n−1 , la esfera unitaria (n − 1)-dimensional. Supongamos que Ric(g) ≥ 0. En este artículo demostramos que si h > 0 es la curvatura media sobre ∂M y ν1 es el primer valor propio del problema de Steklov, entonces ν1 ≥ h. Abstract. Let (Mn, g) be a cone of height 0 ≤ xn+1 ≤ 1 in R ...

  7. Typology of the arteries in the human scalenus region, with special reference to the accessory ascending cervical artery.

    Directory of Open Access Journals (Sweden)

    Su WD

    2000-12-01

    Full Text Available The accessory ascending cervical artery (Murakami et al., 1996, which arises from the subclavian artery and ascends between the scalenus anterior and medius muscles, was studied in 87 Japanese adult cadavers (174 sides, with special attention being given to its origin, distribution, and relationship to other arteries at the cervical or scalenus region. In 154 sides (88.5%, the accessory ascending cervical artery was found to originate from the subclavian artery behind the scalenus anterior muscle, and to branch out to the scalenus anterior and medius muscles as well as those entering the 5th and 6th intervertebral foramens along the 6th and 7th cervical nerves. This artery arose independently in 105 sides. The accessory ascending cervical artery issued off or formed a common trunk with the transverse cervical artery and/or costocervical trunk in 49 sides. In cases lacking the accessory ascending cervical artery, it was usually compensated for by the costocervial trunk and/or transverse cervical artery (18 sides. Common trunk formation with the vertebral, internal thoracic, or suprascapular arteries was not observed. The authors suggest that the accessory ascending cervical artery, the transverse cervical artery, and the costocervical trunk should be grouped into one arterial system, a system that may be a remnant of the precostal longitudinal anastomoses of intersegmental arteries of the dorsal aorta behind the scalenus anterior muscle.

  8. Productos derivados sobre bienes de consumo

    OpenAIRE

    Francisco Venegas Martinez; Salvador Cruz Ake

    2010-01-01

    Este trabajo de investigacion desarrolla un modelo de equilibrio general con expectativas racionales en tiempo continuo util para la determinacion de precios de contratos forward, contratos futuros, bonos cupon cero y opciones europeas (de compra y venta) sobre bienes de consumo. Para ello, el modelo considera un individuo representativo en una economia con dos bienes, los cuales son producidos con tecnologias estocasticas. Por ultimo, el modelo propuesto permite examinar estrategias para obt...

  9. Apuntes sobre la flora gallega, XVII

    OpenAIRE

    Amigo Vázquez, Javier; Pulgar Sañudo, Íñigo

    2005-01-01

    Presentamos un nuevo capítulo dentro de la serie de contribuciones al conocimiento actualizado de la Flora de Galicia, aportando información de interés corológico sobre 11 taxa recolectados: Bidens frondosa L., Crypsis alopecuroides (Piller & Mitterp.) Schrad., Cyperus fuscus L., Cyperus michelianus (L.) Link, Dittrichia graveolens (L.) Desf., Echinochloa crus-galli (L.) P. Beauv. subsp. hispidula (Retz.) Honda, Eragrostis curvula (Schrad.) Nees, Hypericum hirsutum L., Lindernia dubia (L.) Pe...

  10. Reflexiones sobre el concepto de justicia

    Directory of Open Access Journals (Sweden)

    Víctor C. Pascual Planchuelo

    2005-06-01

    Full Text Available Este ensayo constituye una reflexión sobre el concepto de Justicia. No se centra, como tantos estudios al respecto, en el plano teórico y metafísico, sino que atiende problemas de mayor actualidad: la opinión de los ciudadanos, la postura de los profesionales y otros asuntos controvertidos del ámbito del Derecho.

  11. Neopolares de problemas de empaquetamiento sobre semigrupos

    OpenAIRE

    Aráoz Durand, Julián Arturo

    1982-01-01

    Los neopolares permiten caracterizar las caras de un poliedro combinatorio como vértices de poliedros altamente estructurados. Esto sirve para generar planos de cortes y para obtener propiedades duales en problemas de programación entera. Gomory caracterizó neopolares para problemas sobre grupos, Aráoz en "Polyhedral Neopolarities" extendió estos resultados a semigrupos de cubrimiento. En este trabajo se caracterizan neopolares importantes de semigrupos de empaquetamiento que incluyen los pro...

  12. Consideraciones sobre la motricidad del violinista

    OpenAIRE

    Allende, Pablo

    2009-01-01

    Comienza la exposición hablando de que intenta prevenir las patologías en los violinistas mediante secuencias de ejercicios específicos, de diferentes técnicas corporales y fisioterapéuticas. Presenta datos estadísticos sobre el índice de patologías que se encuentran entre estos intérpretes para por último presentar tablas de ejercicios propiamente dichas para intentar paliar estas dolencias

  13. Maca (Lepidium meyenii Walp, una revisión sobre sus propiedades biológicas

    Directory of Open Access Journals (Sweden)

    Gustavo F Gonzales

    2014-01-01

    Full Text Available La maca (Lepidium meyenii es una planta que crece sobre los 4000 metros de altitud en los Andes Centrales del Perú, presenta diferentes variedades de acuerdo al color de su hipocótilo. La presente revisión resume los resultados de estudios sobre los efectos de la maca en la función sexual, la espermatogénesis, la función reproductiva femenina, la memoria, la depresión y la ansiedad, como energizante y contra la hiperplasia benigna de próstata, osteoporosis y síndrome metabólico. Se discute también su efecto antienvejecimiento y la seguridad en su consumo. Se han demostrado diferencias en el efecto de las variedades negra, amarilla y roja de maca. La maca negra es la que mejores resultados presenta sobre la espermatogénesis, la memoria y contra la fatiga, mientras que la maca roja es la variedad que mejor revierte la hiperplasia benigna de próstata y la osteoporosis inducida experimentalmente. Además, la maca reduce los niveles de glucosa, y su consumo se relaciona con la reducción de la presión arterial y un mejor puntaje de salud. Estudios experimentales han demostrado que el consumo a corto como a largo plazo no muestra toxicidad tanto in vivo como in vitro. A pesar que los estudios experimentales han demostrado que la maca presenta diversos efectos benéficos, son necesarios más estudios clínicos para confirmar estos resultados

  14. Maca (Lepidium meyenii Walp, una revisión sobre sus propiedades biológicas

    Directory of Open Access Journals (Sweden)

    Gustavo F Gonzales

    2014-03-01

    Full Text Available La maca (Lepidium meyenii es una planta que crece sobre los 4000 metros de altitud en los Andes Centrales del Perú, presenta diferentes variedades de acuerdo al color de su hipocótilo. La presente revisión resume los resultados de estudios sobre los efectos de la maca en la función sexual, la espermatogénesis, la función reproductiva femenina, la memoria, la depresión y la ansiedad, como energizante y contra la hiperplasia benigna de próstata, osteoporosis y síndrome metabólico. Se discute también su efecto antienvejecimiento y la seguridad en su consumo. Se han demostrado diferencias en el efecto de las variedades negra, amarilla y roja de maca. La maca negra es la que mejores resultados presenta sobre la espermatogénesis, la memoria y contra la fatiga, mientras que la maca roja es la variedad que mejor revierte la hiperplasia benigna de próstata y la osteoporosis inducida experimentalmente. Además, la maca reduce los niveles de glucosa, y su consumo se relaciona con la reducción de la presión arterial y un mejor puntaje de salud. Estudios experimentales han demostrado que el consumo a corto como a largo plazo no muestra toxicidad tanto in vivo como in vitro. A pesar que los estudios experimentales han demostrado que la maca presenta diversos efectos benéficos, son necesarios más estudios clínicos para confirmar estos resultados

  15. Giant Cavernous Aneurysm Associated with a Persistent Trigeminal Artery and Persistent Otic Artery

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Chang Wei; Xie, Xiao Dong; Yang, Zhi Gang; Wang, Chao Hua; You, Chao; Mao, Bo Yong; He, Min; Sun, Hong [West China Hospital, Sichuan University, Sichuan (China)

    2009-10-15

    Primitive trigeminal artery (PTA) and primitive otic artery (POA) is a very rare entity in adult life. We present a case of PTA and POA associated with a giant unruptured cavernous aneurysm in a 54-year-old woman. The PTA and the POA arose from the sac of the aneurysm directly, which greatly complicated endovascular therapy management

  16. Giant Cavernous Aneurysm Associated with a Persistent Trigeminal Artery and Persistent Otic Artery

    Science.gov (United States)

    Zhang, Chang-wei; Yang, Zhi-gang; Wang, Chao-hua; You, Chao; Mao, Bo-yong; He, Min; Sun, Hong

    2009-01-01

    Primitive trigeminal artery (PTA) and primitive otic artery (POA) is a very rare entity in adult life. We present a case of PTA and POA associated with a giant unruptured cavernous aneurysm in a 54-year-old woman. The PTA and the POA arose from the sac of the aneurysm directly, which greatly complicated endovascular therapy management. PMID:19721839

  17. Main pulmonary artery area limits exercise capacity in patients long-term after arterial switch operation

    NARCIS (Netherlands)

    Baggen, Vivan J M; Driessen, Mieke M P; Meijboom, Folkert J; Sieswerda, Gertjan Tj; Jansen, Nicolaas J G; van Wijk, Sebastiaan W H; Doevendans, Pieter A; Leiner, Tim; Schoof, Paul H; Takken, Tim; Breur, Johannes M P J

    2015-01-01

    OBJECTIVES: Despite excellent survival in patients after the arterial switch operation, reintervention is frequently required and exercise capacity is decreased in a substantial number of patients. This study relates right-sided imaging features in patients long-term after the arterial switch operat

  18. Congenital arteriovenous fistula between the internal mammary artery and the pulmonary artery

    OpenAIRE

    Serruys, Patrick; van Meurs-van Woezik, H

    1984-01-01

    textabstractThis is the fourth reported case of congenital arteriovenous fistula between the internal mammary artery and pulmonary artery. Precise and complete diagnostic evaluation is required to localize, delineate and appreciate the haemodynamic significance of this type of arteriovenous shunt. A brief review of the literature is given with suggestions for diagnosis.

  19. Unusual origin of the artery of Adamkiewicz from the fourth lumbar artery

    International Nuclear Information System (INIS)

    The main arterial supply of the dorso-lumbar spinal cord is usually derived from a single anterior radiculo-medullary artery called the artery of Adamkiewicz and referred to as having a middle or low location. In some cases, the artery origin is higher, and a vessel which arises in the lower part of the region supplements the supply of the anterior spinal artery. In the literature, those arteries have been described as arising from L3 upwards, and have never been previously described angiographically, to our knowledge, below this level, although Suh and Alexander and Gililan have mentioned this eventuality. Of the 4,000 spinal cord angiographies performed in our institution, we report three cases in which the fourth lumbar artery flows into the anterior spinal artery of the conus medullaris. This anatomical variant may explain the sometimes devastating post-operative neurological complications from a spinal cord infarction on surgery of the lumbar spine or the abdominal aorta below L3. (orig.)

  20. Unusual origin of the artery of Adamkiewicz from the fourth lumbar artery

    Energy Technology Data Exchange (ETDEWEB)

    Lo, D.; Vallee, J.N.; Spelle, L.; Cormier, E.; Chiras, J. [Service de Neuroradiologie Charcot, Hopital de la Salpetriere, Paris (France); Saillant, G. [Service de Chirurgie Orthopedique et de Traumatologie, Hopital de la Salpetriere, Paris (France); Rancurel, G. [Service D' urgences Cerebro-Vasculaires, Hopital de la Salpetriere, Paris (France)

    2002-02-01

    The main arterial supply of the dorso-lumbar spinal cord is usually derived from a single anterior radiculo-medullary artery called the artery of Adamkiewicz and referred to as having a middle or low location. In some cases, the artery origin is higher, and a vessel which arises in the lower part of the region supplements the supply of the anterior spinal artery. In the literature, those arteries have been described as arising from L3 upwards, and have never been previously described angiographically, to our knowledge, below this level, although Suh and Alexander and Gililan have mentioned this eventuality. Of the 4,000 spinal cord angiographies performed in our institution, we report three cases in which the fourth lumbar artery flows into the anterior spinal artery of the conus medullaris. This anatomical variant may explain the sometimes devastating post-operative neurological complications from a spinal cord infarction on surgery of the lumbar spine or the abdominal aorta below L3. (orig.)