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Sample records for enfermedad vascular cerebral

  1. ESTUDIO DEL EFECTO DE LA CRANEOACUPUNTURA EN PACIENTES CON ENFERMEDAD VASCULAR CEREBRAL. (EVC)

    OpenAIRE

    PEREZ BRAVO, MIGUEL

    2009-01-01

    LA ENFERMEDAD VASCULAR CEREBRAL (EVC) EN MEXICO ES UN IMPORTANTE PROBLEMA DE SALUD PUBLICA, ES LA TERCERA CAUSA DE MUERTE Y LA SEGUNDA EN PRODUCIR INCAPACIDAD NEUROLOGICA. EL OBJETIVO DE ESTE ESTUDIO FUE EVALUAR EL EFECTO DE LA CRANEOACUPUNTURA EN PACIENTES CON ENFERMEDAD VASCULAR CEREBRAL (ZHONG FENG). EL PRESENTE ES UN ESTUDIO EXPERIMENTAL, PROSPECTIVO Y LONGITUDINAL, REALIZADO EN EL HOSPITAL DEL ISSSTE DE LA CIUDAD DE PUEBLA, A UN GRUPO DE 11 PACIENTES DE AMBOS SEXOS, CON...

  2. ESTUDIO COMPARATIVO DEL EFECTO DE CRANEO-ACUPUNTURA VS ACUPUNTURA CORPORAL, EN PACIENTES CON SECUELAS DE ENFERMEDAD VASCULAR CEREBRAL EN EL HOSPITAL REGIONAL DEL INSTITUTO DE SEGURIDAD SOCIAL AL SERVICIO DE LOS TRABAJADORES DEL ESTADO DE PUEBLA

    OpenAIRE

    MENDEZ MENDEZ, NAZARIO CELSO

    2011-01-01

    ESTUDIO COMPARATIVO DEL EFECTO DE LA CRANEOACUPUNTURA VS ACUPUNTURA CORPORAL, EN PACIENTES CON SECUELAS DE ENFERMEDAD VASCULAR CEREBRAL EN EL HOSPITAL REGIONAL DEL INSTITUTO DE SEGURIDAD SOCIAL AL SERVICIO DE LOS TRABAJADORES DEL ESTADO DE PUEBLA. LAS SECUELAS DE EVC SON UN PROBLEMA DE SALUD PUBLICA, CON MAYOR FRECUENCIA DE LA ISQUEMIA 81.25 POR CIENTO POR CIENTO Y EN SEGUNDO LUGAR LA HEMORRÁGICA CON EL 18.75 POR CIENTO, EL SEXO FEMENINO ES LA MAS FRECUENTE Y LA EDAD MAS AFECTADA ES DE LO...

  3. Acute cerebral vascular accident associated with hyperperfusion

    International Nuclear Information System (INIS)

    Soin, J.S.; Burdine, J.A.

    1976-01-01

    Cerebral radionuclide angiography can demonstrate decreased or normal radioactivity in the affected region during the arterial phase in patients who have sustained a cerebral vascular accident and thus enhances the diagnostic specificity of the static brain image. In an occasional patient, however, a seemingly paradoxical pattern of regional hyperperfusion with a return to normal or subnormal perfusion following the acute phase has been observed. This phenomenon, called luxury perfusion, has been defined using intra-arterial 133 Xe for semiquantitative cerebral blood flow measurements and should be kept in mind as a potentially misleading cerebral imaging pattern

  4. Cerebral Vascular Injury in Traumatic Brain Injury.

    Science.gov (United States)

    Kenney, Kimbra; Amyot, Franck; Haber, Margalit; Pronger, Angela; Bogoslovsky, Tanya; Moore, Carol; Diaz-Arrastia, Ramon

    2016-01-01

    Traumatic cerebral vascular injury (TCVI) is a very frequent, if not universal, feature after traumatic brain injury (TBI). It is likely responsible, at least in part, for functional deficits and TBI-related chronic disability. Because there are multiple pharmacologic and non-pharmacologic therapies that promote vascular health, TCVI is an attractive target for therapeutic intervention after TBI. The cerebral microvasculature is a component of the neurovascular unit (NVU) coupling neuronal metabolism with local cerebral blood flow. The NVU participates in the pathogenesis of TBI, either directly from physical trauma or as part of the cascade of secondary injury that occurs after TBI. Pathologically, there is extensive cerebral microvascular injury in humans and experimental animal, identified with either conventional light microscopy or ultrastructural examination. It is seen in acute and chronic TBI, and even described in chronic traumatic encephalopathy (CTE). Non-invasive, physiologic measures of cerebral microvascular function show dysfunction after TBI in humans and experimental animal models of TBI. These include imaging sequences (MRI-ASL), Transcranial Doppler (TCD), and Near InfraRed Spectroscopy (NIRS). Understanding the pathophysiology of TCVI, a relatively under-studied component of TBI, has promise for the development of novel therapies for TBI. Published by Elsevier Inc.

  5. Cerebral radiation necrosis: vascular and glial features

    Energy Technology Data Exchange (ETDEWEB)

    Husain, M M; Garcia, J H

    1976-12-21

    Glial and vascular abnormalities in brain, simulating intracranial neoplasia, are described in a patient who received radiation to the pituitary region for treatment of an adenoma, 13 months before death. In addition to the expected changes of cerebral radionecrosis, four interesting features are cited: (1) diffuse hyperplasia of capillaries in the cerebral cortex with marked endothelial hypertrophy; (2) abundant, large multipolar bizarre cells in the perivascular connective tissues; (3) focal astrocytic proliferation with many cells resembling either Alzheimer type I astrocytes or neoplastic cells, and (4) radiation changes in the non-irradiated brain.

  6. Las enfermedades vasculares del clavel en Colombia y en el mundo

    Directory of Open Access Journals (Sweden)

    Arbeláez Torres Germán

    1993-06-01

    Full Text Available El clavel es atacado por un gran número de enfermedades
    causadas por hongos, bacterias, nemátodos, virus y micoplasmas, las cuales se presentan afectando diferentes partes de la planta. Dentro de esas enfermedades, las más importantes son las enfermedades vasculares por las altas
    perdidas que ocasionan, por la facilidad de propagación
    a través de los esquejes, por su alta persistencia en el suelo y por el alto costo de algunas de las medidas de control utilizadas. Las enfermedades vasculares del clavel son ocasionadas por hongos y bacterias y, hasta el momento,
    se han reconocido las siguientes: 1. Marchitamiento bacterial, causado por Pseudomonas caryophylli (Burkh Starr et Burkh. 2. Enanismo bacterial, causado por Erwinia chrysanthemi Burkh. pv. dianthicola. 3. Marchitamiento lento, causado por una raza del hongo Rhizoctonia solani Kuhn. 4. Marchitamiento vascular, causado por el hongo Phialophora cinerescens (wollenw van Beyma. 5. Marchitamiento vascular, causado por el hongo Fusarium oxysporum Schlecht f.sp. dianthi (Prill et Dei. Snyder et Hansen.

  7. PERFIL DA DISFAGIA APÓS UM ACIDENTE VASCULAR CEREBRAL: UMA REVISÃO INTEGRATIVA

    OpenAIRE

    CARINA TEIXEIRA PAIXÃO; LOLITA DOPICO DA SILVA; FLAVIA GIRON CAMERINI

    2010-01-01

    Este artículo trata de disfagia decurrente de una enfermedad vascular cerebral (EVC). El objetivo fue determinar el perfil de las publicaciones acerca de la disfagia en pacientes víctimas de EVC. Investigación de revisión integradora que usó los mismos descriptores en las bases Medline, Scielo e Lilacs, seleccionando 17 artículos entre 1998 a 2008. Los datos fueron analizados a partir de las categorías correspondientes a los enfoques de las publicaciones encontradas. Los resultados muestran d...

  8. Deficiency of superoxide dismutase promotes cerebral vascular hypertrophy and vascular dysfunction in hyperhomocysteinemia.

    Directory of Open Access Journals (Sweden)

    Sanjana Dayal

    Full Text Available There is an emerging consensus that hyperhomocysteinemia is an independent risk factor for cerebral vascular disease and that homocysteine-lowering therapy protects from ischemic stroke. However, the mechanisms by which hyperhomocysteinemia produces abnormalities of cerebral vascular structure and function remain largely undefined. Our objective in this study was to define the mechanistic role of superoxide in hyperhomocysteinemia-induced cerebral vascular dysfunction and hypertrophy. Unlike previous studies, our experimental design included a genetic approach to alter superoxide levels by using superoxide dismutase 1 (SOD1-deficient mice fed a high methionine/low folate diet to produce hyperhomocysteinemia. In wild-type mice, the hyperhomocysteinemic diet caused elevated superoxide levels and impaired responses to endothelium-dependent vasodilators in cerebral arterioles, and SOD1 deficiency compounded the severity of these effects. The cross-sectional area of the pial arteriolar wall was markedly increased in mice with SOD1 deficiency, and the hyperhomocysteinemic diet sensitized SOD1-deficient mice to this hypertrophic effect. Analysis of individual components of the vascular wall demonstrated a significant increase in the content of smooth muscle and elastin. We conclude that superoxide is a key driver of both cerebral vascular hypertrophy and vasomotor dysfunction in this model of dietary hyperhomocysteinemia. These findings provide insight into the mechanisms by which hyperhomocysteinemia promotes cerebral vascular disease and ischemic stroke.

  9. Cerebral blood measurements in cerebral vascular disease: methodological and clinical aspects

    International Nuclear Information System (INIS)

    Fieschi, C.; Lenzi, G.L.

    1982-01-01

    This paper is devoted mainly to studies performed on acute cerebral vascular disease with the invasive techniques for the measurement of regional cerebral blood flow (rCBF). The principles of the rCBF method are outlined and the following techniques are described in detail: xenon-133 inhalation method, xenon-133 intravenous method and emission tomography methods. (C.F.)

  10. Vascular permeability in cerebral cavernous malformations

    DEFF Research Database (Denmark)

    Mikati, Abdul G; Khanna, Omaditya; Zhang, Lingjiao

    2015-01-01

    Patients with the familial form of cerebral cavernous malformations (CCMs) are haploinsufficient for the CCM1, CCM2, or CCM3 gene. Loss of corresponding CCM proteins increases RhoA kinase-mediated endothelial permeability in vitro, and in mouse brains in vivo. A prospective case-controlled observ...

  11. LA ADICCIÓN “NO” ES UNA ENFERMEDAD CEREBRAL

    Directory of Open Access Journals (Sweden)

    Elisardo Becoña

    2016-05-01

    Full Text Available En los últimos años se ha ido consolidando la idea en el campo médico-psiquiátrico de que la adicción es una “enfermedad cerebral”, como ya así recoge el DSM-5. En este articulo se analiza cómo ha surgido y se ha consolidado esta idea, las críticas que ha recibido, las consecuencias profesionales si este modelo se hace hegemónico, junto a los intereses subyacentes al mismo. Se concluye defendiendo la necesidad de mostrar como psicólogos nuestras claras aportaciones al campo de las adicciones, como el de las variables psicológicas que son necesarias para la comprensión de las adicciones, para su prevención, junto con el papel central del tratamiento psicológico por su eficacia en las mismas. También debemos denunciar los reduccionismos, como el que representa el modelo de enfermedad cerebral frente a un modelo biopsicosocial de las adicciones.

  12. Nuclide imaging and computed tomography in cerebral vascular disease

    International Nuclear Information System (INIS)

    Chiu, L.C.; Christie, J.H.; Schapiro, R.L.

    1977-01-01

    This report presents our experience with computed tomographic and radionuclide scans in 224 patients with ischemic or hemorrhagic infarcts or intracerebral hematomas secondary to cerebral occlusive vascular diseases. The results vary according to the site of vascular occlusion. The radionuclide angiograms and static scintigrams show four distinct patterns in cases of occlusion of the middle cerebral artery. Computed tomographic scans exhibit less variation in appearance and have a higher sensitivity in cases of recent ischemic infarction. The ''tentorial confluence sign'' is an important finding on static scintigrams in patients with occipital infarction; if this sign is not present, this diagnosis should be suspect. Earlier reports have established the value of computed tomography and radionuclide scans in the evaluation of cerebral infarction. In individual cases, however, each of these modalities may render nondiagnostic or false negative findings; combining both types of examinations and comparing results yield a greater likelihood of an accurate diagnosis of cerebrovascular disease. Computed tomography is clearly more valuable than radionuclide scans in the diagnosis and follow-up of hemorrhagic infarcts or parenchymal hematomas

  13. Cerebral Vascular Disease and Neurovascular Injury in Ischemic Stroke

    Science.gov (United States)

    Hu, Xiaoming; De Silva, T. Michael; Chen, Jun; Faraci, Frank M.

    2017-01-01

    The consequences of cerebrovascular disease are among the leading health issues worldwide. Large and small cerebral vessel disease can trigger stroke and contribute to the vascular component of other forms of neurological dysfunction and degeneration. Both forms of vascular disease are driven by diverse risk factors, with hypertension as the leading contributor. Despite the importance of neurovascular disease and subsequent injury following ischemic events, fundamental knowledge in these areas lag behind our current understanding of neuroprotection and vascular biology in general. The goal of this review is to address select key structural and functional changes in the vasculature that promote hypoperfusion and ischemia, while also affecting the extent of injury and effectiveness of therapy. In addition, as damage to the blood-brain barrier (BBB) is one of the major consequences of ischemia, we discuss cellular and molecular mechanisms underlying ischemia-induced changes in BBB integrity and function, including alterations in endothelial cells and the contribution of pericytes, immune cells, and matrix metalloproteinases. Identification of cell types, pathways, and molecules that control vascular changes before and after ischemia may result in novel approaches to slow the progression of cerebrovascular disease and lessen both the frequency and impact of ischemic events. PMID:28154097

  14. La enfermedad periodontal, ¿un factor de riesgo más para el infarto cerebral isquémico aterotrombótico?

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    María Elena González Díaz

    Full Text Available De forma compactada se explica la relación biológicamente plausible que existe entre la aparición de accidentes cerebrovasculares, particularmente de infarto cerebral isquémico aterotrombótico y la precedencia de enfermedad periodontal inmuno-inflamatoria crónica. Se sugiere la necesidad de estudios que vinculen ambas entidades para conciliar los resultados de las investigaciones internacionales con las realizadas en nuestro medio. Se propone el análisis del estado periodontal en los pacientes pertenecientes a grupos de riesgo o víctimas de enfermedades cerebrovasculares. La consideración de la enfermedad periodontal inmuno-inflamatoria crónica como un factor de riesgo más para el infarto cerebral isquémico aterotrombótico, debe pasar de una interrogante a una estrategia.

  15. Autoconsumo de hierbas medicinales en usuarios con enfermedades cardio-vasculares en una comuna de Chile

    Directory of Open Access Journals (Sweden)

    Lizet Veliz-Rojas

    2015-09-01

    Full Text Available Objetivo: Caracterizar el autoconsumo de hierbas medicinales en usuarios con enfermedades cardiovasculares. Metodología: Estudio de tipo cuantitativo y transversal, con una muestra de 257 personas. Los instrumentos recolectores de datos fueron un cuestionario y la revisión de la ficha clínica. Se utilizó un análisis descriptivo univariante apoyado en SPSS. Resultados: El 80,80% de los encuestados usó hierbas medicinales, y el 72,76% señaló no informar esta práctica al equipo de salud. Las hierbas medicinales más utilizadas para el control de la enfermedad cardiovascular fueron: el limón (20,6% para bajar la presión arterial, la pata de vaca (7% para reducir la glicemia y la alcachofa (3,5% para controlar el colesterol. Conclusiones: La mayoría de los participantes recurrieron a las hierbas medicinales, pese a ser una práctica de autocuidado prevalente, no es informada al equipo de salud. Algunas hierbas utilizadas por la muestra para controlar la enfermedad cardiovascular, están descritas sus usos para otras causas. Esta situación podría reflejar el desconocimiento sobre su utilización. Se sugiere el desarrollo de estrategias para el adecuado uso de las hierbas medicinales en atención primaria, enfocado en la integralidad en salud.

  16. Vascular permeability and iron deposition biomarkers in longitudinal follow-up of cerebral cavernous malformations

    DEFF Research Database (Denmark)

    Girard, Romuald; Fam, Maged D; Zeineddine, Hussein A

    2017-01-01

    OBJECTIVE Vascular permeability and iron leakage are central features of cerebral cavernous malformation (CCM) pathogenesis. The authors aimed to correlate prospective clinical behavior of CCM lesions with longitudinal changes in biomarkers of dynamic contrast-enhanced quantitative permeability (...

  17. Effects of Mild Blast Traumatic Brain Injury on Cerebral Vascular, Histopathological, and Behavioral Outcomes in Rats

    Science.gov (United States)

    Zeng, Yaping; Deyo, Donald; Parsley, Margaret A.; Hawkins, Bridget E.; Prough, Donald S.; DeWitt, Douglas S.

    2018-01-01

    Abstract To determine the effects of mild blast-induced traumatic brain injury (bTBI), several groups of rats were subjected to blast injury or sham injury in a compressed air-driven shock tube. The effects of bTBI on relative cerebral perfusion (laser Doppler flowmetry [LDF]), and mean arterial blood pressure (MAP) cerebral vascular resistance were measured for 2 h post-bTBI. Dilator responses to reduced intravascular pressure were measured in isolated middle cerebral arterial (MCA) segments, ex vivo, 30 and 60 min post-bTBI. Neuronal injury was assessed (Fluoro-Jade C [FJC]) 24 and 48 h post-bTBI. Neurological outcomes (beam balance and walking tests) and working memory (Morris water maze [MWM]) were assessed 2 weeks post-bTBI. Because impact TBI (i.e., non-blast TBI) is often associated with reduced cerebral perfusion and impaired cerebrovascular function in part because of the generation of reactive oxygen and nitrogen species such as peroxynitrite (ONOO−), the effects of the administration of the ONOO− scavenger, penicillamine methyl ester (PenME), on cerebral perfusion and cerebral vascular resistance were measured for 2 h post-bTBI. Mild bTBI resulted in reduced relative cerebral perfusion and MCA dilator responses to reduced intravascular pressure, increases in cerebral vascular resistance and in the numbers of FJC-positive cells in the brain, and significantly impaired working memory. PenME administration resulted in significant reductions in cerebral vascular resistance and a trend toward increased cerebral perfusion, suggesting that ONOO− may contribute to blast-induced cerebral vascular dysfunction. PMID:29160141

  18. Cerebral vascular control and metabolism in heat stress

    DEFF Research Database (Denmark)

    Bain, Anthony R; Nybo, Lars; Ainslie, Philip N

    2015-01-01

    implications and pathologies known to confound cerebral functioning during hyperthermia. A reduction in cerebral blood flow (CBF), derived primarily from a respiratory-induced alkalosis, underscores the cerebrovascular changes to hyperthermia. Arterial pressures may also become compromised because of reduced...

  19. Cerebral vascular effects of hypovolemia and dopamine infusions

    DEFF Research Database (Denmark)

    Holst Hahn, Gitte; Heiring, Christian; Pryds, Ole

    2012-01-01

    Despite widespread use, effects of volume boluses and dopamine in hypotensive newborn infants remain controversial. We aimed to elucidate if hypovolemia alone impairs cerebral autoregulation (CA) and if dopamine affects cerebral vasculature.......Despite widespread use, effects of volume boluses and dopamine in hypotensive newborn infants remain controversial. We aimed to elucidate if hypovolemia alone impairs cerebral autoregulation (CA) and if dopamine affects cerebral vasculature....

  20. Modelo basado en SIG para el estudio de la mortalidad por enfermedad cerebro-vascular

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Tangarife Villa

    2013-06-01

    Full Text Available En los últimos 15 años el estudio para una de las tres primeras causas de muerte a nivel mundial –enfermedad cerebrovascular (ECV– se caracteriza por utilizar el enfoque epidemiológico tradicional y sus técnicas de análisis estadístico bivariado y multivariado orientadas a identificar su composición según variables de persona y explorar relaciones con sus determinantes pero sin impactar significativamente su ocurrencia, sin embargo, en el presente artículo se identifica como alternativa de análisis la modelación espacio-temporal con SIG a niveles de desagregación detallados; en este sentido el análisis comparativo de los modelos utilizados en los estudios conocidos, desvela el uso de datos y técnicas de análisis espacial básicas para identificar patrones como los evidenciados en los cinturones de diabetes y ECV en USA o el clúster colombiano de enfermedades del aparato circulatorio identificado en la región andina que sugiere un comportamiento similar para la ECV. El panorama anterior demanda la combinación de enfoques con énfasis en sus técnicas de análisis avanzadas –análisis multi-criterio, kriging, interpolación, correlación y regresión espacial– soportadas con SIG y por lo tanto, como contribución final se propone un modelo integrado dirigido a impactar positivamente la mortalidad por ECV.

  1. Neural Vascular Mechanism for the Cerebral Blood Flow Autoregulation after Hemorrhagic Stroke

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    Ming Xiao

    2017-01-01

    Full Text Available During the initial stages of hemorrhagic stroke, including intracerebral hemorrhage and subarachnoid hemorrhage, the reflex mechanisms are activated to protect cerebral perfusion, but secondary dysfunction of cerebral flow autoregulation will eventually reduce global cerebral blood flow and the delivery of metabolic substrates, leading to generalized cerebral ischemia, hypoxia, and ultimately, neuronal cell death. Cerebral blood flow is controlled by various regulatory mechanisms, including prevailing arterial pressure, intracranial pressure, arterial blood gases, neural activity, and metabolic demand. Evoked by the concept of vascular neural network, the unveiled neural vascular mechanism gains more and more attentions. Astrocyte, neuron, pericyte, endothelium, and so forth are formed as a communicate network to regulate with each other as well as the cerebral blood flow. However, the signaling molecules responsible for this communication between these new players and blood vessels are yet to be definitively confirmed. Recent evidence suggested the pivotal role of transcriptional mechanism, including but not limited to miRNA, lncRNA, exosome, and so forth, for the cerebral blood flow autoregulation. In the present review, we sought to summarize the hemodynamic changes and underline neural vascular mechanism for cerebral blood flow autoregulation in stroke-prone state and after hemorrhagic stroke and hopefully provide more systematic and innovative research interests for the pathophysiology and therapeutic strategies of hemorrhagic stroke.

  2. A case with post-irradiation cerebral vascular disease accompanied by Cushing's disease

    International Nuclear Information System (INIS)

    Shinoda, Keiichi; Kuriyama, Takanobu; Kimura, Fumiharu; Kawamura, Hiroshi; Takamatsu, Junta; Mozai, Toshiji

    1986-01-01

    A 37-year-old man with Cushing's disease developed cerebral infarction 13 years after Co-60 irradiation of a total dose of 60 Gy for pituitary adenoma. Cerebral angiography showed stenosis or occlusion of the bilateral carotid arteries and basilar artery which were in the radiation fields. A basophilic adenoma was resected, and symptoms of Cushing's disease have resolved. The vascular lesions are likely to be not only radiation-induced, but also stimulated by hyperlipemia and hypertension associated with Cushing's disease. It is recommended to eliminate factors, such as hyperlipemia and hypertension, stimulatig vascular damage in the management of patients treated with radiation therapy. The relevant literature is reviewed. (Namekawa, K.)

  3. Decreased expression of transient receptor potential channels in cerebral vascular tissue from patients after hypertensive intracerebral hemorrhage

    DEFF Research Database (Denmark)

    Thilo, Florian; Suess, Olaf; Liu, Ying

    2011-01-01

    , TRPC5, TRPC6, TRPM4, TRPM6, and TRPM7 channels were detected in cerebral vascular tissue by quantitative real-time RT-PCR. Control cerebral vascular tissue was obtained from normotensive patients who underwent neurosurgical operation because of brain tumor. To examine a possible relation between...

  4. Consenso sobre la clasificación de la enfermedad vascular pulmonar hipertensiva en niños: Reporte del task force pediátrico del Pulmonary Vascular Research Institute (PVRI) Panamá 2011

    OpenAIRE

    Jesús del Cerro, María; Abman, Steven; Díaz, Gabriel; Heath Freudenthal, Alexandra; Freudenthal, Franz; Harikrishnan, S.; Haworth, Sheila G.; Ivy, Dunbar; Lopes, Antonio A.; Usha Raj, J.; Sandoval, Julio; Stenmark, Kurt; Adatia, Ian; Lammers, Astrid E.

    2012-01-01

    Las clasificaciones actuales de la hipertensión pulmonar han contribuido significativamente al conocimiento de la enfermedad vascular pulmonar, han facilitado ensayos farmacológicos y han mejorado nuestro conocimiento de las cardiopatías congénitas del adulto; sin embargo estas clasificaciones no son aplicables completamente a la enfermedad en el niño. La clasificación que aquí se propone se basa principalmente en la práctica clínica. Los objetivos específicos de esta nueva clasificación son ...

  5. Fluid-attenuated inversion recovery vascular hyperintensities in predicting cerebral hyperperfusion after intracranial arterial stenting

    Energy Technology Data Exchange (ETDEWEB)

    Wan, Chih-Cheng; Chen, David Yen-Ting; Tseng, Ying-Chi; Lee, Kun-Yu; Chiang, Chen-Hua; Chen, Chi-Jen [Taipei Medical University, Department of Radiology, Shuang-Ho Hospital, New Taipei City (China); Taipei Medical University, School of Medicine, College of Medicine, Taipei (China); Yan, Feng-Xian [Taipei Medical University, Department of Radiology, Shuang-Ho Hospital, New Taipei City (China)

    2017-08-15

    No reliable imaging sign predicting cerebral hyperperfusion after intracranial arterial stenting (IAS) had been described in the literature. This study evaluated the effect of fluid-attenuated inversion recovery vascular hyperintensities (FVHs), also called hyperintense vessel sign on T2-weighted fluid-attenuated inversion recovery (T2-FLAIR) MR images, in predicting significant increase in cerebral blood flow (CBF) defined by arterial spin labeling (ASL) after IAS. We reviewed ASL CBF images and T2-FLAIR MR images before (D0), 1 day after (D1), and 3 days after (D3) IAS of 16 patients. T1-weighted MR images were used as cerebral maps for calculating CBF. The changes in CBF values after IAS were calculated in and compared among stenting and nonstenting vascular territories. An increase more than 50% of CBF was considered as hyperperfusion. The effect of FVHs in predicting hyperperfusion was calculated. The D1 CBF value was significantly higher than the D0 CBF value in stenting vascular, contralateral anterior cerebral artery, contralateral middle cerebral artery, and contralateral posterior cerebral artery (PCA) territories (all P <.05). The D1 and D3 CBF values were significantly higher than the D0 CBF value in overall vascular (P <.001), overall nonstenting vascular (P <.001), and ipsilateral PCA (P <.05) territories. The rate of more than 50% increases in CBF was significantly higher in patients who exhibited asymmetric FVHs than in those who did not exhibit these findings. FVHs could be a critical predictor of a significant increase in CBF after IAS. (orig.)

  6. Fluid-attenuated inversion recovery vascular hyperintensities in predicting cerebral hyperperfusion after intracranial arterial stenting

    International Nuclear Information System (INIS)

    Wan, Chih-Cheng; Chen, David Yen-Ting; Tseng, Ying-Chi; Lee, Kun-Yu; Chiang, Chen-Hua; Chen, Chi-Jen; Yan, Feng-Xian

    2017-01-01

    No reliable imaging sign predicting cerebral hyperperfusion after intracranial arterial stenting (IAS) had been described in the literature. This study evaluated the effect of fluid-attenuated inversion recovery vascular hyperintensities (FVHs), also called hyperintense vessel sign on T2-weighted fluid-attenuated inversion recovery (T2-FLAIR) MR images, in predicting significant increase in cerebral blood flow (CBF) defined by arterial spin labeling (ASL) after IAS. We reviewed ASL CBF images and T2-FLAIR MR images before (D0), 1 day after (D1), and 3 days after (D3) IAS of 16 patients. T1-weighted MR images were used as cerebral maps for calculating CBF. The changes in CBF values after IAS were calculated in and compared among stenting and nonstenting vascular territories. An increase more than 50% of CBF was considered as hyperperfusion. The effect of FVHs in predicting hyperperfusion was calculated. The D1 CBF value was significantly higher than the D0 CBF value in stenting vascular, contralateral anterior cerebral artery, contralateral middle cerebral artery, and contralateral posterior cerebral artery (PCA) territories (all P <.05). The D1 and D3 CBF values were significantly higher than the D0 CBF value in overall vascular (P <.001), overall nonstenting vascular (P <.001), and ipsilateral PCA (P <.05) territories. The rate of more than 50% increases in CBF was significantly higher in patients who exhibited asymmetric FVHs than in those who did not exhibit these findings. FVHs could be a critical predictor of a significant increase in CBF after IAS. (orig.)

  7. Characterisation of cerebral blood flow via determining the vascular mean transit time

    International Nuclear Information System (INIS)

    Lindner, P.; Thelen, M.

    1987-01-01

    By using a recently developed algorithm it is possible to quantify the dynamic information of a DSA sequence of the brain. The theory of algorithm allows to calculate vascular mean transit from time density curves. The algorithm minimizes the problems of densitometry with regard to 'quantitative DSA'. There is a strong correlation between vascular mean transit times and cerebral blood flow values, and therefore the results for mean transit times also correspond to the results obtained for cerebral blood flow. By computerized postprocessing of DSA-images it is possible to generate functional images of the brain with a spatial resolution that had not been attainable so far. The images represent the distribution pattern of reverse vascular mean transit times. The results from 36 patients with proven stenoses of the cervical vessels are reported. (orig.) [de

  8. Endovascular treatment of cerebral aneurysms at Altai Regional Vascular Center

    Directory of Open Access Journals (Sweden)

    Д. А. Долженко

    2015-10-01

    Full Text Available A retrospective analysis of the results of endovascular treatment of patients with the brain aneurysms was carried out at the Neurosurgical Department of Regional Clinical Hospital in Barnaul over a period from 2009 to 2011. 52 patients with 57 cerebral aneurysms were included in the study and 55 endovascular interventions were performed. Total embolization (type A was used in 77% of patients, embolization type B was performed in 19% of cases, incomplete embolization (type C occurred in 4% of cases. 14 (26,9% patients were operated in the acute period of SAH. Conclusions are made relating to the effectiveness and relative safety of intravascular treatment of aneurysms, the need for differentiated approaches to the tactics of surgical treatment of patients in the acute period of hemorrhagic stroke due to the rupture of a cerebral aneurysm.

  9. Reduced cerebral vascularization in experimental neuronopathic Gaucher disease.

    Science.gov (United States)

    Smith, Nicholas Jc; Fuller, Maria; Saville, Jennifer T; Cox, Timothy M

    2018-01-01

    The glycosphingolipidosis, Gaucher disease, in which a range of neurological manifestations occur, results from a deficiency of acid β-glucocerebrosidase, with subsequent accumulation of β-glucocerebroside, its upstream substrates, and the non-acylated congener β-glucosylsphingosine. However, the mechanisms by which end-organ dysfunction arise are poorly understood. Here, we report strikingly diminished cerebral microvascular density in a murine model of disease, and provide a detailed analysis of the accompanying cerebral glycosphingolipidome in these animals, with marked elevations of β-glucosylsphingosine. Further in vitro studies confirmed a concentration-dependent impairment of endothelial cytokinesis upon exposure to quasi-pathological concentrations of β-glucosylsphingosine. These findings support a premise for pathogenic disruption of cerebral angiogenesis as an end-organ effect, with potential for therapeutic modulation in neuronopathic Gaucher disease. Copyright © 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. Copyright © 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.

  10. Systemic and cerebral vascular endothelial growth factor levels increase in murine cerebral malaria along with increased Calpain and caspase activity and can be reduced by erythropoietin treatment

    DEFF Research Database (Denmark)

    Hempel, Casper; Hoyer, Nils; Kildemoes, Anna

    2014-01-01

    The pathogenesis of cerebral malaria (CM) includes compromised microvascular perfusion, increased inflammation, cytoadhesion, and endothelial activation. These events cause blood-brain barrier disruption and neuropathology and associations with the vascular endothelial growth factor (VEGF) signal...

  11. Vascular risk factors, atherosclerosis, cerebral white matter lesions and cerebral perfusion in a population-based study

    International Nuclear Information System (INIS)

    Claus, J.J.; Breteler, M.M.B.; Hasan, D.; Krenning, E.P.; Bots, M.L.; Grobbee, D.E.; Swieten, J.C. van; Harskamp, F. van; Hofman, A.

    1996-01-01

    We studied risk factors for cerebral vascular disease (blood pressure and hypertension, factor VIIc, factor VIIIc, fibrinogen), indicators of atherosclerosis (intima-media thickness and plaques in the carotid artery) and cerebral white matter lesions in relation to regional cerebral blood flow (rCBF) in 60 persons (aged 65-85 years) recruited from a population-based study. rCBF was assessed with single-photon emission tomography using technetium-99m d,l-hexamethylpropylene amine oxime ( 99m Tc-HMPAO). Statistical analysis was performed with multiple linear regression with adjustment for age, sex and ventricle-to-brain ratio. A significant positive association was found between systolic and diastolic blood pressure and temporo-parietal rCBF. In analysis with quartiles of the distribution, we found a threshold effect for the relation of low diastolic blood pressure (≤60 mmHg) and low temporo-parietal rCBF. Levels of plasma fibrinogen were inversely related to parietal rCBF, with a threshold effect of high fibrinogen levels (>3.2 g/l) and low rCBF. Increased atherosclerosis was related to low rCBF in all cortical regions, but these associations were not significant. No consistent relation was observed between severity of cerebral white matter lesions and rCBF. Our results may have implications for blood pressure control in the elderly population. (orig.)

  12. Case of radiation necrosis with vascular changes on main cerebral arteries

    Energy Technology Data Exchange (ETDEWEB)

    Ishibashi, Y; Okada, H; Mineura, K; Kodama, N [Tohoku Univ., Sendai (Japan). School of Medicine

    1982-03-01

    A 64-year-old woman had received radiotherapy, following surgery of a chromophobe pituitary adenoma. Six years after irradiation she began to complain of headache and dementia. Right vertebrogram demonstrated a right temporal mass lesion, stenosis and dilatation of middle cerebral artery and posterior communicating artery in the field of irradiation. CT scan showed the irregular low density area at the right temporal region, and the irregular enhancement after an intravenous injection of contrast medium was seen at the small part of affected area. From these findings, radiation necrosis at the right temporal lobe was diagnosed. Reports of vascular changes of the main cerebral arteries due to radiation are rare.

  13. Consenso sobre la clasificación de la enfermedad vascular pulmonar hipertensiva en niños: Reporte del task force pediátrico del Pulmonary Vascular Research Institute (PVRI Panamá 2011

    Directory of Open Access Journals (Sweden)

    María Jesús del Cerro

    2012-11-01

    Full Text Available Las clasificaciones actuales de la hipertensión pulmonar han contribuido significativamente al conocimiento de la enfermedad vascular pulmonar, han facilitado ensayos farmacológicos y han mejorado nuestro conocimiento de las cardiopatías congénitas del adulto; sin embargo estas clasificaciones no son aplicables completamente a la enfermedad en el niño. La clasificación que aquí se propone se basa principalmente en la práctica clínica. Los objetivos específicos de esta nueva clasificación son mejorar las estrategias diagnósticas, promover la investigación clínica, mejorar nuestro conocimiento de la patogénesis, de la fisiología y de la epidemiología de la enfermedad y orientar el desarrollo de modelos de la enfermedad humana en el laboratorio y estudios en animales; también puede servir como un recurso docente. Se hace énfasis en los conceptos de maladaptación perinatal, alteraciones del desarrollo e hipoplasia pulmonar como factores causantes de la hipertensión pulmonar pediátrica; así mismo, en la importancia de los múltiples síndromes malformativos congénitos, genéticos y cromosómicos en la presentación de la hipertensión pulmonar pediátrica. La enfermedad vascular pulmonar hipertensiva en niños se divide en diez grandes categorías.

  14. Interactive effects of vascular risk burden and advanced age on cerebral blood flow

    Directory of Open Access Journals (Sweden)

    Katherine eBangen

    2014-07-01

    Full Text Available Vascular risk factors and cerebral blood flow (CBF reduction have been linked to increased risk of cognitive impairment and Alzheimer’s disease (AD; however the possible moderating effects of age and vascular risk burden on CBF in late life remain understudied. We examined the relationships among elevated vascular risk burden, age, CBF, and cognition. Seventy-one non-demented older adults completed an arterial spin labeling MR scan, neuropsychological assessment, and medical history interview. Relationships among vascular risk burden, age, and CBF were examined in a priori regions of interest (ROIs previously implicated in aging and AD. Interaction effects indicated that, among older adults with elevated vascular risk burden (i.e., multiple vascular risk factors, advancing age was significantly associated with reduced cortical CBF whereas there was no such relationship for those with low vascular risk burden (i.e., no or one vascular risk factor. This pattern was observed in cortical ROIs including medial temporal (hippocampus, parahippocampal gyrus, uncus, inferior parietal (supramarginal gyrus, inferior parietal lobule, angular gyrus, and frontal (anterior cingulate, middle frontal gyrus, medial frontal gyrus cortices. Furthermore, among those with elevated vascular risk, reduced CBF was associated with poorer cognitive performance. Such findings suggest that older adults with elevated vascular risk burden may be particularly vulnerable to cognitive change as a function of CBF reductions. Findings support the use of CBF as a potential biomarker in preclinical AD and suggest that vascular risk burden and regionally-specific CBF changes may contribute to differential age-related cognitive declines.

  15. Primeiro consenso brasileiro do tratamento da fase aguda do acidente vascular cerebral

    Directory of Open Access Journals (Sweden)

    2001-01-01

    Full Text Available Este texto apresenta a síntese das conclusões do Iº Consenso Brasileiro do Tratamento da Fase Aguda do Acidente Vascular Cerebral (AVC. Tratou-se de reunião patrocinada e coordenada pela Sociedade Brasileira de Doenças Cerebrovasculares, com neurologistas especializados nas doenças cerebrovasculares, que analisaram os principais itens da conduta dos AVC.

  16. Effects of smoking on regional cerebral blood flow in cerebral vascular disease patients and normal subjects

    International Nuclear Information System (INIS)

    Kubota, Kazuo; Yamaguchi, Tatsuo; Fujiwara, Takehiko; Matsuzawa, Taiju

    1987-01-01

    The chronic effect of smoking on the regional cerebral blood flow (r-CBF) was studied by 133-Xenon inhalation method and described with the Initial Slope Index (ISI). Fifty-two patients as the control group who had no abnormality neurologically or with CT scan, 32 patients with old cerebral infarction and 20 patients with old cerebral hemorrhage were introduced to the present study, and these patients were divided into smokers and non-smokers in each group. Those whose smoking index of 200 or more [(number of cigarettes/day) x (years of smoking history) ≥ 200] were designated as smokers. ISI values were decreased significantly in smokers than non-smokers in all groups. Mean ISI value of unaffected hemisphere in smokers decreased by 16 % in the infarction group and 22 % in the hemorrhage group comparing to the non-smokers', respectively. In the control group, mean ISI value of right hemisphere decreased by 15 % and left 14 % in smokers compared to the non-smokers. The r-CBF values in 44 of the 47 smokers were found to be lower than the expected age matched values in non-smokers. Serum high density lipoprotein cholesterol value in smokers was significantly lower than that in non-smokers. We demonstrated preliminarily that the smoking chronically reduced the r-CBF. Advanced atherosclerosis associated with the smoker was suggested to affect the CBF. (author)

  17. Prenatal diagnosis of concurrent facial and cerebral vascular malformation which caused congestive heart failure

    Directory of Open Access Journals (Sweden)

    Behnaz Moradi

    2017-12-01

    Full Text Available Arteriovenous malformations (AVMs are rarely reported antenatally. Most in utero diagnosis of vascular malformation is related to vein of Galen malformation (VGM. We describe a case of simultaneously diagnosed pial arteriovenous fistula (AVF and facial vascular malformation in a 20 weeks old fetus. The dilated intracranial venous pouch appeared as a midline anechoic structure which was misdiagnosed as a VGM in her previous ultrasound exam. Another AVM was diagnosed in the same side of fetal face which fed by a branch of external carotid artery and communicated with the mentioned pial AVF. High output cardiac failure and hydrops were evident. To our knowledge this is the first report of prenatally detected combination of facial and cerebral vascular malformations at such as early pregnancy week.

  18. Presurgical fMRI evaluation of cerebral reorganization and motor deficit in patients with tumors and vascular malformations

    International Nuclear Information System (INIS)

    Baciu, M.; Le Bas, J.F.; Segebarth, C.; Benabid, A.L.

    2003-01-01

    The aim of this fMRI study was to evaluate the motor reorganization (cerebral plasticity) and the risk of motor deficit in patients presenting with tumors and vascular malformations, within the framework of their pre-surgical planning. Functional MR imaging data was obtained from 17 patients. Ten patients (seven with tumors and three with vascular malformations) presented with motor reorganization. The results of the present study suggest that the evaluation of the cerebral reorganization is an essential step in predicting the risk of motor deficit in patients having surgical indication for treatment. Furthermore, the cerebral reorganization constitutes an important factor for surgical decision

  19. Cerebral blood flow single-photon emission tomography with 123I-IMP in vascular dementia

    International Nuclear Information System (INIS)

    Kawahata, Nobuya; Gotoh, Chiharu; Yokoyama, Sakura; Daitoh, Nobuyuki

    2001-01-01

    Cerebral blood flow differences between patients with vascular dementia, patients with multiple lacunar infarction without cognitive dysfunction, and age-matched controls were examined. Thirty four patients with vascular dementia (VD) were selected from consecutive referrals to the Memory Clinic at Narita Memorial Hospital. All the patients had routine assessment including history, physical and neurological examinations, neuropsychological assessment, blood tests, EEG, head MRI, and single photon emission computed tomography (SPECT). All of them fulfilled the NINDS-AIREN diagnostic criteria for vascular dementia. Thirty nine patients with multiple lacunar infarction without cognitive dysfunction and 110 age-matched controls were included in this study. Mean cerebral blood flow (mCBF) and regional cerebral blood flow (rCBF) were measured using N-isopropyl-P- 123 I-iodoamphetamine ( 123 I-IMP) and SPECT imager. The mCBF in VD was 27.6±5.3 ml/100 g/min, while those in the control group and multiple lacunar infarction without cognitive dysfunction were 36.6±6.1 ml/100 g/min and 32.5±5.5 ml/100 g/min, respectively. The patients with VD demonstrated significantly reduced mCBF and rCBF in twenty regions including both cerebellar hemispheres as compared with those of the control group. Although there was no significant rCBF differences in bilateral inferior occipital regions and the right cerebellar hemisphere between patients with VD and multiple lacunar infarction without cognitive dysfunction, we could find significant lower rCBF in the remaining brain areas. In spite of the severity of VD, the diffuse decrease of cerebral blood flow was recognized in all patients with VD. (author)

  20. Cortical Cerebral Microinfarcts on 3 Tesla MRI in Patients with Vascular Cognitive Impairment.

    Science.gov (United States)

    Ferro, Doeschka A; van Veluw, Susanne J; Koek, Huiberdina L; Exalto, Lieza G; Biessels, Geert Jan

    2017-01-01

    Cerebral microinfarcts (CMIs) are small ischemic lesions that are a common neuropathological finding in patients with stroke or dementia. CMIs in the cortex can now be detected in vivo on 3 Tesla MRI. To determine the occurrence of CMIs and associated clinical features in patients with possible vascular cognitive impairment (VCI). 182 memory-clinic patients (mean age 71.4±10.6, 55% male) with vascular injury on brain MRI (i.e., possible VCI) underwent a standardized work-up including 3 Tesla MRI and cognitive assessment. A control group consisted of 70 cognitively normal subjects (mean age 70.6±4.7, 60% male). Cortical CMIs and other neuroimaging markers of vascular brain injury were rated according to established criteria. Occurrence of CMIs was higher (20%) in patients compared to controls (10%). Among patients, the presence of CMIs was associated with male sex, history of stroke, infarcts, and white matter hyperintensities. CMI presence was also associated with a diagnosis of vascular dementia and reduced performance in multiple cognitive domains. CMIs on 3 Tesla MRI are common in patients with possible VCI and co-occur with imaging markers of small and large vessel disease, likely reflecting a heterogeneous etiology. CMIs are associated with worse cognitive performance, independent of other markers of vascular brain injury.

  1. Regional cerebral blood flow in vascular depression assessed by 123I-IMP SPECT

    International Nuclear Information System (INIS)

    Kimura, Mahito; Shimoda, Kengo; Mizumura, Sunao; Tateno, Amane; Fujito, Tatsuma; Mori, Takao; Endo, Shunkichi

    2003-01-01

    As the prevalence of white matter hyperintensities detected on T2 weighted MRI scans in patients with late-onset depression is higher than that in nondepressed patients, the concept of ''vascular depression'' (VDep) was introduced in 1997. However, the pathology of vascular depression has not been clarified. This study examined the differences in functional imaging between vascular and non-vascular depression (non-VDep). We utilized 123 I-IMP single photon emission computed tomography (SPECT) to compare regional cerebral blood flows (rCBF) between 9 patients with VDep (Krishnan criteria) and 11 age- and sex-matched patients with non-VDep in both depressed and remitted states. In both VDep and non-VDep patients, mean rCBF increased significantly as depression improved, partially aided by changes in left anterior temporal blood flow. In addition, compared to non-VDep patients, the left anterior frontal rCBF for VDep patients was significantly lower in both depressed and remitted states. Left anterior temporal rCBF therefore appears to represent a state marker that increases as symptoms associated with late-onset depression improve, regardless of vascular changes. Furthermore, in VDep patients, left anterior frontal rCBF was low in both states compared to non-VDep patients, and might not only represent a trait marker, but also correlated with the duration of disease and likelihood of recurrence and relapse. (author)

  2. A theoretical framework for determining cerebral vascular function and heterogeneity from dynamic susceptibility contrast MRI.

    Science.gov (United States)

    Digernes, Ingrid; Bjørnerud, Atle; Vatnehol, Svein Are S; Løvland, Grete; Courivaud, Frédéric; Vik-Mo, Einar; Meling, Torstein R; Emblem, Kyrre E

    2017-06-01

    Mapping the complex heterogeneity of vascular tissue in the brain is important for understanding cerebrovascular disease. In this translational study, we build on previous work using vessel architectural imaging (VAI) and present a theoretical framework for determining cerebral vascular function and heterogeneity from dynamic susceptibility contrast magnetic resonance imaging (MRI). Our tissue model covers realistic structural architectures for vessel branching and orientations, as well as a range of hemodynamic scenarios for blood flow, capillary transit times and oxygenation. In a typical image voxel, our findings show that the apparent MRI relaxation rates are independent of the mean vessel orientation and that the vortex area, a VAI-based parameter, is determined by the relative oxygen saturation level and the vessel branching of the tissue. Finally, in both simulated and patient data, we show that the relative distributions of the vortex area parameter as a function of capillary transit times show unique characteristics in normal-appearing white and gray matter tissue, whereas tumour-voxels in comparison display a heterogeneous distribution. Collectively, our study presents a comprehensive framework that may serve as a roadmap for in vivo and per-voxel determination of vascular status and heterogeneity in cerebral tissue.

  3. Post-mortem assessment of hypoperfusion of cerebral cortex in Alzheimer's disease and vascular dementia.

    Science.gov (United States)

    Thomas, Taya; Miners, Scott; Love, Seth

    2015-04-01

    Perfusion is reduced in the cerebral neocortex in Alzheimer's disease. We have explored some of the mechanisms, by measurement of perfusion-sensitive and disease-related proteins in post-mortem tissue from Alzheimer's disease, vascular dementia and age-matched control brains. To distinguish physiological from pathological reduction in perfusion (i.e. reduction exceeding the decline in metabolic demand), we measured the concentration of vascular endothelial growth factor (VEGF), a protein induced under conditions of tissue hypoxia through the actions of hypoxia-inducible factors, and the myelin associated glycoprotein to proteolipid protein 1 (MAG:PLP1) ratio, which declines in chronically hypoperfused brain tissue. To evaluate possible mechanisms of hypoperfusion, we also measured the levels of amyloid-β40, amyloid-β42, von Willebrand factor (VWF; a measure of microvascular density) and the potent vasoconstrictor endothelin 1 (EDN1); we assayed the activity of angiotensin I converting enzyme (ACE), which catalyses the production of another potent vasoconstrictor, angiotensin II; and we scored the severity of arteriolosclerotic small vessel disease and cerebral amyloid angiopathy, and determined the Braak tangle stage. VEGF was markedly increased in frontal and parahippocampal cortex in Alzheimer's disease but only slightly and not significantly in vascular dementia. In frontal cortex the MAG:PLP1 ratio was significantly reduced in Alzheimer's disease and even more so in vascular dementia. VEGF but not MAG:PLP1 increased with Alzheimer's disease severity, as measured by Braak tangle stage, and correlated with amyloid-β42 and amyloid-β42: amyloid-β40 but not amyloid-β40. Although MAG:PLP1 tended to be lowest in cortex from patients with severe small vessel disease or cerebral amyloid angiopathy, neither VEGF nor MAG:PLP1 correlated significantly with the severity of structural vascular pathology (small vessel disease, cerebral amyloid angiopathy or VWF

  4. Herpes Zoster oftálmico e posterior acidente vascular cerebral: relato de caso

    Directory of Open Access Journals (Sweden)

    Carlos A. M. Guerreiro

    1984-12-01

    Full Text Available Um caso de acidente vascular cerebral (AVC 14 semanas após a instalação de herpes zoster oftálmico (HZO é apresentado. A tomografia computadorizada craniana documentou comprometimento em território de artéria cerebral média ipsilateral ao HZO. O diagnóstico de probabilidade é o de arterite por herpes zoster com posterior trombose. Os autores reviram a literatura e enfatizam o longo intervalo entre o HZO e a instalação da hemiplegia. Citam as novas drogas antivirais que tornam esta causa de AVC potencialmente passível de ser prevenida.

  5. Late radiation encephalopathy in the dog. A model for cerebral vascular disease

    International Nuclear Information System (INIS)

    Michaelson, S.M.; Kramer, M.W.

    The Research Group on Industrial and Environmental Neurology has suggested that assessment of cerebral atherosclerosis should be considered as part of its purview of problems of interest. Although the present study is not related to the ordinary environmental or industrial situation, it can apply to accidental over-exposure to external ionizing radiation or radiation therapy and describes an animal model that can be used for fundamental study of cerebral vascular conditions and encephalomalacia. Ionizing radiation damage to nervous tissue may be apparent early after irradiation or may become evident after a variable latent period. The concept of late ionizing radiation-induced neuropathy, the subject of this study, is characterized by a long latent period between exposure and initial clinical signs, an inverse relationship between radiation dose and latency of appearance of late radiation encephalopathy, and an apparent lack of demonstrable physiological, biochemical, and morphological alterations until necrosis becomes manifest. (U.S.)

  6. A case of radiation necrosis with vascular changes on main cerebral arteries

    International Nuclear Information System (INIS)

    Ishibashi, Yasuhiko; Okada, Hitoshi; Mineura, Katsuyoshi; Kodama, Namio

    1982-01-01

    A 64-year-old woman had received radiotherapy, following surgery of a chromophobe putuitary adenoma. Six years after irradiation she began to complain of headache and dementia. Right vertebrogram demonstrated a right temporal mass lesion, stenosis and dilatation of middle cerebral artery and posterior communicating artery in the field of irradiation. CT scan showed the irregular low density area at the right temporal region, and the irregular enhancement after an intravenous injection of contrast medium was seen at the small part of affected area. From these findings, radiation necrosis at the right temporal lobe was diagnosed. As vascular changes of the main cerebral arteries due to radiation are rare, we discussed on them from ever reported literature. (author)

  7. Effect of preceding exercise on cerebral and splanchnic vascular responses to mental task

    Directory of Open Access Journals (Sweden)

    Someya Nami

    2012-06-01

    Full Text Available Abstract Background To investigate the effect of preceding acute exercise on the peripheral vascular response to a mental task, we measured splanchnic and cerebral blood flow responses to performing a mental task after exercise and resting. Methods In the exercise trial, 11 males exercised for 30 min on a cycle ergometer with a workload set at 70% of the age-predicted maximal heart rate for each individual. After a 15-min recovery period, the subjects rested for 5 min for pre-task baseline measurement and then performed mental arithmetic for 5 min followed by 5 min of post-task measurement. In the resting trial, they rested for 45 min and pre-task baseline data was obtained for 5 min. Then mental arithmetic was performed for 5 min followed by post-task measurement. We measured the mean blood velocity in the middle cerebral artery and superior mesenteric artery and the mean arterial pressure. Results Mean arterial pressure and mean blood velocity in the middle cerebral artery were significantly higher than the baseline during mental arithmetic in both exercise and resting trials. Mean blood velocity in the middle cerebral artery during mental arithmetic was greater in the control trial than the exercise trial. Mean blood velocity in the superior mesenteric artery showed no significant change during mental arithmetic from baseline in both trials. Conclusion These results suggest that acute exercise can moderate the increase in cerebral blood flow induced by a mental task.

  8. Placental growth factor deficiency is associated with impaired cerebral vascular development in mice.

    Science.gov (United States)

    Luna, Rayana Leal; Kay, Vanessa R; Rätsep, Matthew T; Khalaj, Kasra; Bidarimath, Mallikarjun; Peterson, Nichole; Carmeliet, Peter; Jin, Albert; Croy, B Anne

    2016-02-01

    Placental growth factor (PGF) is expressed in the developing mouse brain and contributes to vascularization and vessel patterning. PGF is dynamically expressed in fetal mouse brain, particularly forebrain, and is essential for normal cerebrovascular development. PGF rises in maternal plasma over normal human and mouse pregnancy but is low in many women with the acute onset hypertensive syndrome, pre-eclampsia (PE). Little is known about the expression of PGF in the fetus during PE. Pgf  (-/-) mice appear normal but recently cerebral vascular defects were documented in adult Pgf  (-/-) mice. Here, temporal-spatial expression of PGF is mapped in normal fetal mouse brains and cerebral vasculature development is compared between normal and congenic Pgf  (-/-) fetuses to assess the actions of PGF during cerebrovascular development. Pgf/PGF, Vegfa/VEGF, Vegf receptor (Vegfr)1 and Vegfr2 expression were examined in the brains of embryonic day (E)12.5, 14.5, 16.5 and 18.5 C57BL/6 (B6) mice using quantitative PCR and immunohistochemistry. The cerebral vasculature was compared between Pgf  (-/-) and B6 embryonic and adult brains using whole mount techniques. Vulnerability to cerebral ischemia was investigated using a left common carotid ligation assay. Pgf/PGF and Vegfr1 are highly expressed in E12.5-14.5 forebrain relative to VEGF and Vegfr2. Vegfa/VEGF is relatively more abundant in hindbrain (HB). PGF and VEGF expression were similar in midbrain. Delayed HB vascularization was seen at E10.5 and 11.5 in Pgf  (-/-) brains. At E14.5, Pgf  (-/-) circle of Willis showed unilateral hypoplasia and fewer collateral vessels, defects that persisted post-natally. Functionally, adult Pgf  (-/-) mice experienced cerebral ischemia after left common carotid arterial occlusion while B6 mice did not. Since Pgf  (-/-) mice were used, consequences of complete absence of maternal and fetal PGF were defined. Therefore, the effects of maternal versus fetal PGF

  9. Regional cerebral blood flow analysis of vascular dementia by the single photon emission computed tomography

    International Nuclear Information System (INIS)

    Miyakawa, Kouichi; Watanabe, Sho; Suzuki, Michiyo; Kamijima, Gonbei

    1989-01-01

    In order to evaluate the relationship between the regional cerebral blood flow (CBF) and cerebrovascular dementia, eleven patients with vascular dementia and eight patients with non-demented infarction were studied and regional CBF were measured quantitatively with single photon emission computed tomography (SPECT) by using N-isopropyl-p-(I-123) iodoamphetamine. All cases were basal infarction and vascular dementia were diagnosed by less than 21.5 of the Hasegawa's dementia score and more than 7 of Hachinsk's ischemic score. The results of the present study were as follows: (1) Cerebrovascular dementia showed lower mean CBF value compared with non-demented group. (2) Regional CBF of bilateral frontal areas and affected basal ganglia were significantly reduced than occipital area in the dementia group. (3) A comparison of regional CBF and the Hasegawa's dementia score revealed a statistically significant correlation at the bilateral frontal areas in the dementia group. It is possible that measuring the regional CBF quantitatively by IMP-SPECT is useful for clinical analysis of vascular dementia. (author)

  10. Accidente cerebro-vascular en la enfermedad de Fabry: Algo más que una simple estenosis Stroke in Fabry disease: More than a simple stenosis

    Directory of Open Access Journals (Sweden)

    Juan Manuel Politei

    2006-10-01

    Full Text Available Se analiza la evidencia existente a la fecha sobre los mecanismos fisiopatológicos que pueden generar accidentes cerebrovasculares en la enfermedad de Fabry. Esta entidad es el resultado de la deficiencia de a-galactosidasa A, lo que resulta en depósito patológico de glicoesfingilípidos en distintas poblaciones celulares. Asociados a la insuficiencia renal y cardíaca, los accidentes cerebrovasculares pueden derivar en la muerte de los pacientes. Durante mucho tiempo el único mecanismo generador de daño vascular informado fue la oclusión vascular por depósito lipídico a nivel endotelial. En la actualidad se describen otros mecanismos. El advenimiento de la terapia de reemplazo enzimático ha generado gran expectativa en cuanto la posibilidad de reversión de estos mecanismos. Si bien la evidencia es escasa y son necesarios más estudios a largo plazo, algunos informes demuestran que luego de meses, el tratamiento ha logrado revertir algunos de los mecanismos implicados.The objective is to analyze the updated evidence on the physiopathological mechanisms that can generate cerebrovascular damage in Fabry disease. Fabry disease is the result of the deficiency of a-galactosidasa A, which causes pathological storage of glycosphingolipids, in different cells. Associated to renal and cardiac insufficiency, cerebrovascular complications can derive in the death of the patients. During a long time the only reported mechanism was the vascular occlusion by deposit of lipids at endothelial level. At the present time, other mechanisms are postulated. The arrival of enzyme replacement therapy has generated great expectation on the possibility of reversion of these alterations. Although the evidence is scarce and more long term studies are necessary, some reports demonstrate that after months, the treatment has managed to revert some of the mechanisms involved.

  11. Repercussão do acidente vascular cerebral na aprendizagem da criança

    OpenAIRE

    Sonia das Dores Rodrigues

    2008-01-01

    Resumo: A doença cerebrovascular (DCV) é considerada rara na infância, com incidência aproximada de 2.3 a 2.5/100.000 crianças/ano. Comparando-se aos estudos realizados na idade adulta, na infância os estudos ainda são raros e, em geral, a idéia passada pela literatura é que essa doença não traz maiores repercussões para o futuro desses indivíduos. Entretanto, pesquisas realizadas a partir da última década, principalmente, vêm demonstrando que o acidente vascular cerebral (AVC) pode compromet...

  12. Nursing diagnoses in patients with cerebral vascular accident: an integrative review.

    Science.gov (United States)

    Lima, Ana Carolina Maria Araújo Chagas Costa; Silva, Aurilene Lima da; Guerra, Débora Rodrigues; Barbosa, Islene Victor; Bezerra, Karine de Castro; Oriá, Mônica Oliveira Batista

    2016-01-01

    to verify the nursing diagnoses in patients affected by CVAs. this is an integrative review of the literature. The search was conducted on LILACS, Scielo, Medline, CINAHL, and Scopus databases between February and March 2015, using the following keywords: "Enfermagem", "Acidente Vascular Cerebral", "Diagnóstico de Enfermagem"; and "Nursing", "Stroke", and "Nursing Diagnosis". we found 9 articles published between 2009 and 2015; most of them were Brazilian, cross-sectional, and exploratory, with a level of evidence of 6. The evidence from the publications was classified as: "Evaluation and validation of specific nursing diagnoses for subjects affected by CVAs" and "Application of the nursing process on subjects affected by CVAs". we noticed the publications focused on nursing diagnoses related to motor disorders, such as risk of falls and impaired physical mobility. Domains regarding safety/protection (domain 11) and sleep/resting (domain 4) were present in most evaluated publications.

  13. The role of shear stress and arteriogenesis in maintaining vascular homeostasis and preventing cerebral atherosclerosis

    Directory of Open Access Journals (Sweden)

    David Della-Morte

    2015-01-01

    Full Text Available Shear stress (SS is a biomechanical force that is determined by blood flow, vessel geometry, and fluid viscosity. Although a wide range of known vascular risk factors promote development of atherosclerosis, atherosclerotic changes occur predominately at specific sites within the arterial tree, suggesting a critical role for local factors within the vasculature. Atherosclerotic lesions develop predominantly at branches, bends, and bifurcations in the arterial tree because these sites are exposed to low or disturbed blood flow and low SS. Low SS predisposes arteries to atherosclerosis by causing endothelial dysfunction. A natural system of preexisting cerebral collateral arteries protects against ischemia by bypassing sites of arterial occlusion through a mechanism of arteriogenesis. The main trigger for arteriogenesis is impaired vascular homeostasis (VH in response to local changes in SS induced by ischemia. VH is a critical process for maintaining the physiological function of cerebral circulation. It is regulated through a complex biological system of blood flow hemodynamic and physiological responses to flow changes. Restoration of VH by increasing arteriogenesis and SS may provide a novel therapeutic target for stroke, especially in the elderly, who are more prone to VH impairment. In this review article, we discuss the mechanisms and structures necessary to maintain VH in brain circulation, the role of SS, and risk factors leading to atherosclerosis, including the effects of aging. We also discuss arteriogenesis as an adaptive and protective process in response to ischemic injury, the imaging techniques currently available to evaluate arterogenesis such as magnetic resonance imaging/positron emission tomography (MRI/PET, and the potential therapeutic approaches against ischemic injury that target arteriogenesis.

  14. Multichannel optical brain imaging to separate cerebral vascular, tissue metabolic, and neuronal effects of cocaine

    Science.gov (United States)

    Ren, Hugang; Luo, Zhongchi; Yuan, Zhijia; Pan, Yingtian; Du, Congwu

    2012-02-01

    Characterization of cerebral hemodynamic and oxygenation metabolic changes, as well neuronal function is of great importance to study of brain functions and the relevant brain disorders such as drug addiction. Compared with other neuroimaging modalities, optical imaging techniques have the potential for high spatiotemporal resolution and dissection of the changes in cerebral blood flow (CBF), blood volume (CBV), and hemoglobing oxygenation and intracellular Ca ([Ca2+]i), which serves as markers of vascular function, tissue metabolism and neuronal activity, respectively. Recently, we developed a multiwavelength imaging system and integrated it into a surgical microscope. Three LEDs of λ1=530nm, λ2=570nm and λ3=630nm were used for exciting [Ca2+]i fluorescence labeled by Rhod2 (AM) and sensitizing total hemoglobin (i.e., CBV), and deoxygenated-hemoglobin, whereas one LD of λ1=830nm was used for laser speckle imaging to form a CBF mapping of the brain. These light sources were time-sharing for illumination on the brain and synchronized with the exposure of CCD camera for multichannel images of the brain. Our animal studies indicated that this optical approach enabled simultaneous mapping of cocaine-induced changes in CBF, CBV and oxygenated- and deoxygenated hemoglobin as well as [Ca2+]i in the cortical brain. Its high spatiotemporal resolution (30μm, 10Hz) and large field of view (4x5 mm2) are advanced as a neuroimaging tool for brain functional study.

  15. Doppler Ultrasonographic Parameters for Predicting Cerebral Vascular Reserve in Patients with Acute Ischemic Stroke

    International Nuclear Information System (INIS)

    Jung, Han Young; Lee, Hui Joong; Kim, Hye Jung; Kim, Yong Sun; Kang, Duk Sik

    2006-01-01

    We investigated Doppler ultrasonographic (US) parameters of patients with acute stroke to predict the cerebral vascular reserve (CVR) measured by SPECT. We reviewed the flow velocity and cross-sectional area of the circular vessel at the common, external, and internal carotid arteries (ICA) and the vertebral arteries (VA) in 109 acute stroke patients who underwent SPECT. Flow volume (FV) of each artery was calculated as the product of the angle-corrected time averaged flow velocity and cross-sectional area of the circular vessel. Total cerebral FV (TCBFV) was determined as the sum of the FVs of the right and left ICA and VA. We compared the Doppler US parameters between 44 cases of preserved and 65 cases of impaired CVR. In the preserved CVR group, ICA FV, anterior circulating FV (ACFV) and TCBFV were higher than in the impaired CVR group (p < 0.05, independent t-test). In the impaired CVR group, the ROC curves showed ACFV and TCBFV were suitable parameters to predict CVR (p < 0.05). Doppler US was helpful for understanding the hemodynamic state of acute stroke. FV measurement by Doppler US was useful for predicting CVR

  16. Structure and vascular function of MEKK3–cerebral cavernous malformations 2 complex

    Energy Technology Data Exchange (ETDEWEB)

    Fisher, Oriana S. [Yale Univ., New Haven, CT (United States); Deng, Hanqiang [Shanghai Jiao Tong Univ. School of Medicine (SJTU-SM), Shanghai (China); Liu, Dou [Yale Univ. School of Medicine, New Haven, CT (United States); Zhang, Ya [Yale Univ. School of Medicine, New Haven, CT (United States); Wei, Rong [Shanghai Jiao Tong Univ. School of Medicine (SJTU-SM), Shanghai (China); Deng, Yong [Yale Univ. School of Medicine, New Haven, CT (United States); Zhang, Fan [Yale Univ. School of Medicine, New Haven, CT (United States); Louvi, Angeliki [Yale Univ. School of Medicine, New Haven, CT (United States); Turk, Benjamin E. [Yale Univ., New Haven, CT (United States); Boggon, Titus J. [Yale Univ., New Haven, CT (United States); Su, Bing [Shanghai Jiao Tong Univ. School of Medicine (SJTU-SM), Shanghai (China)

    2015-08-03

    Cerebral cavernous malformations 2 (CCM2) loss is associated with the familial form of CCM disease. The protein kinase MEKK3 (MAP3K3) is essential for embryonic angiogenesis in mice and interacts physically with CCM2, but how this interaction is mediated and its relevance to cerebral vasculature are unknown. Here we report that Mekk3 plays an intrinsic role in embryonic vascular development. Inducible endothelial Mekk3 knockout in neonatal mice is lethal due to multiple intracranial haemorrhages and brain blood vessels leakage. We discover direct interaction between CCM2 harmonin homology domain (HHD) and the N terminus of MEKK3, and determine a 2.35 Å cocrystal structure. We find Mekk3 deficiency impairs neurovascular integrity, which is partially dependent on Rho–ROCK signalling, and that disruption of MEKK3:CCM2 interaction leads to similar neurovascular leakage. We conclude that CCM2:MEKK3-mediated regulation of Rho signalling is required for maintenance of neurovascular integrity, unravelling a mechanism by which CCM2 loss leads to disease.

  17. Protective or pathogenic effects of vascular endothelial growth factor (VEGF) as potential biomarker in cerebral malaria.

    Science.gov (United States)

    Canavese, Miriam; Spaccapelo, Roberta

    2014-03-01

    Cerebral malaria (CM) is the major lethal complication of Plasmodium falciparum infection. It is characterized by persistent coma along with symmetrical motor signs. Several clinical, histopathological, and laboratory studies have suggested that cytoadherence of parasitized erythrocytes, neural injury by malarial toxin, and excessive inflammatory cytokine production are possible pathogenic mechanisms. Although the detailed pathophysiology of CM remains unsolved, it is thought that the binding of parasitized erythrocytes to the cerebral endothelia of microvessels, leading to their occlusion and the consequent angiogenic dysregulation play a key role in the disease pathogenesis. Recent evidences showed that vascular endothelial growth factor (VEGF) and its receptor-related molecules are over-expressed in the brain tissues of CM patients, as well as increased levels of VEGF are detectable in biologic samples from malaria patients. Whether the modulation of VEGF is causative agent of CM mortality or a specific phenotype of patients with susceptibility to fatal CM needs further evaluation. Currently, there is no biological test available to confirm the diagnosis of CM and its complications. It is hoped that development of biomarkers to identify patients and potential risk for adverse outcomes would greatly enhance better intervention and clinical management to improve the outcomes. We review and discuss here what it is currently known in regard to the role of VEGF in CM as well as VEGF as a potential biomarker.

  18. Effects of acetazolamide on the micro- and macro-vascular cerebral hemodynamics: a diffuse optical and transcranial doppler ultrasound study.

    Science.gov (United States)

    Zirak, Peyman; Delgado-Mederos, Raquel; Martí-Fàbregas, Joan; Durduran, Turgut

    2010-11-19

    Acetazolamide (ACZ) was used to stimulate the cerebral vasculature on ten healthy volunteers to assess the cerebral vasomotor reactivity (CVR). We have combined near infrared spectroscopy (NIRS), diffuse correlation spectroscopy (DCS) and transcranial Doppler (TCD) technologies to non-invasively assess CVR in real-time by measuring oxy- and deoxy-hemoglobin concentrations, using NIRS, local cerebral blood flow (CBF), using DCS, and blood flow velocity (CBFV) in the middle cerebral artery, using TCD. Robust and persistent increases in oxy-hemoglobin concentration, CBF and CBFV were observed. A significant agreement was found between macro-vascular (TCD) and micro-vascular (DCS) hemodynamics, between the NIRS and TCD data, and also within NIRS and DCS results. The relative cerebral metabolic rate of oxygen, rCMRO(2), was also determined, and no significant change was observed. Our results showed that the combined diffuse optics-ultrasound technique is viable to follow (CVR) and rCMRO(2) changes in adults, continuously, at the bed-side and in real time.

  19. Factores de riesgo relacionados con mortalidad por enfermedad cerebro vascular. armenia 2008 = Risk factors associated with cerebrovascular disease mortality, Armenia, Colombia, 2008

    Directory of Open Access Journals (Sweden)

    Álvarez Aristizábal, Luis Carlos

    2011-03-01

    Full Text Available Introducción: La Enfermedad cerebro vascular (ECV se encuentra entre las primeras causas de morbimortalidad en adultos en todo el mundo. Comparte con la enfermedad cardiovascular factores de riesgo modificables y no modificables; constituye una prioridad para la salud pública realizar todos los esfuerzos necesarios en la prevención primaria a través del tratamiento farmacológico y no farmacológico adecuados.Objetivo: Determinar la prevalencia y la mortalidad del accidente cerebrovascular y la relación con factores de riesgo.Métodos: se realizó un estudio de cross sectional .Se revisaron 318 historias clínicas de pacientes con diagnóstico de ECV que ingresaron a IPS de tercer nivel en la ciudad de Armenia entre 2005 y 2007. Se analizó la frecuencia de los factores de riesgo y se relacionaron con la mortalidad y tipos de ECV.Resultados: La edad promedio fue 72 años; la mortalidad del 29.9%. Presentaron ECV isquémico 61.9% y hemorrágica 38.1%, con una mortalidad de 21.3% y 43.8% respectivamente. Los factores de riesgo más prevalentes fueron: hipertensión arterial (74.5%, tabaquismo (23.3%, ACV o cardiopatía isquémica previos (15.4%, y diabetes (15.1%. Se encontraron asociados a mortalidad: presión arterial media al ingreso a urgencias mayor a 105 (OR 1.6, presión arterial diastólica mayor a 100 (OR 3.1 y ECV hemorrágica (OR 2.9.Conclusiones: los eventos hemorrágicos son menos frecuentes pero ocasionan mayor mortalidad que los isquémicos; es necesario realizar programas de prevención secundaria para el adecuado control de factores como la hipertensión arterial; además impulsar la promoción para el cambio a estilos de vida saludables.

  20. Consenso sobre la clasificación de la enfermedad vascular pulmonar hipertensiva en niños: reporte del task force pediátrico del Pulmonary Vascular Research Institute (PVRI Panamá 2011 A consensus approach to the classification of pediatric pulmonary hypertensive vascular disease: Report from the PVRI Pediatric Taskforce, Panama 2011

    Directory of Open Access Journals (Sweden)

    María Jesús del Cerro

    2012-12-01

    Full Text Available Las clasificaciones actuales de la hipertensión pulmonar han contribuido significativamente al conocimiento de la enfermedad vascular pulmonar, han facilitado ensayos farmacológicos y han mejorado nuestro conocimiento de las cardiopatías congénitas del adulto; sin embargo estas clasificaciones no son aplicables completamente a la enfermedad en el niño. La clasificación que aquí se propone se basa principalmente en la práctica clínica. Los objetivos específicos de esta nueva clasificación son mejorar las estrategias diagnósticas, promover la investigación clínica, mejorar nuestro conocimiento de la patogénesis, de la fisiología y de la epidemiología de la enfermedad y orientar el desarrollo de modelos de la enfermedad humana en el laboratorio y estudios en animales; también puede servir como un recurso docente. Se hace énfasis en los conceptos de maladaptación perinatal, alteraciones del desarrollo e hipoplasia pulmonar como factores causantes de la hipertensión pulmonar pediátrica; así mismo, en la importancia de los múltiples síndromes malformativos congénitos, genéticos y cromosómicos en la presentación de la hipertensión pulmonar pediátrica. La enfermedad vascular pulmonar hipertensiva en niños se divide en diez grandes categorías.Current classifications of pulmonary hypertension have contributed a great deal to our understanding of pulmonary vascular disease, facilitated drug trials, and improved our understanding of congenital heart disease in adult survivors. However, these classifications are not applicable readily to pediatric disease. The classification system that we propose is based firmly in clinical practice. The specific aims of this new system are to improve diagnostic strategies, to promote appropriate clinical investigation, to improve our understanding of disease pathogenesis, physiology and epidemiology, and to guide the development of human disease models in laboratory and animal studies. It

  1. Relation between prognosis and collateral circulation or recanalization in occlusive cerebral vascular diseases

    International Nuclear Information System (INIS)

    Saito, Yuko

    1982-01-01

    CT images and angiograms were compared, in occlusive cerebral vascular diseases with complete stroke in the region of internal carotid artery, and following subjects were discussed. 1) Relation between size of final low density area on CT and prognosis. 2) Effectiveness of collateral circulation and recanalization to the low density area on CT in the teritorry of occluded artery. For the subject 1,100 cases of infarction of the region of middle cerebral artery were chosen at random, and the prognosis was compared with the size of low density area on CT. For the subject 2,186 cases of infarction in the region on internal carotid artery were selected, and CT images and angiograms were compared, considering the duration between stroke and angiography. With these studies, following conclusions were obtained. There is tendency that cases with the smaller low density areas on CT have the better prognosis. The low density on CT appeares inside of the teritorry of the occluded artery. When there is neither collateral circulation nor recanalization, appearance of the low density on CT is not avoided. Collateral circulation or recanalization is able to rescue the affected area from appearance of low density on CT, even if it is formed later than 6 hours after ictus. The critical period when collateral circulation or recanalization effects on the involved area is variable depending on each cases, but it is suspected to be 24 or 72 hours after onset. Blood supply which begins later than 73 hours after occlusion of artery does not effect on the involved area. (J.P.N.)

  2. Relation between prognosis and collateral circulation or recanalization in occlusive cerebral vascular diseases

    Energy Technology Data Exchange (ETDEWEB)

    Saito, Yuko (Tokyo Women' s Medical Coll. (Japan))

    1982-09-01

    CT images and angiograms were compared, in occlusive cerebral vascular diseases with complete stroke in the region of internal carotid artery, and following subjects were discussed. 1) Relation between size of final low density area on CT and prognosis. 2) Effectiveness of collateral circulation and recanalization to the low density area on CT in the territory of occluded artery. For the subject 1,100 cases of infarction of the region of middle cerebral artery were chosen at random, and the prognosis was compared with the size of low density area on CT. For the subject 2,186 cases of infarction in the region on internal carotid artery were selected, and CT images and angiograms were compared, considering the duration between stroke and angiography. With these studies, following conclusions were obtained. There is tendency that cases with the smaller low density areas on CT have the better prognosis. The low density on CT appears inside of the territory of the occluded artery. When there is neither collateral circulation nor recanalization, appearance of the low density on CT is not avoided. Collateral circulation or recanalization is able to rescue the affected area from appearance of low density on CT, even if it is formed later than 6 hours after ictus. The critical period when collateral circulation or recanalization effects on the involved area is variable depending on each cases, but it is suspected to be 24 or 72 hours after onset. Blood supply which begins later than 73 hours after occlusion of artery does not effect on the involved area.

  3. Cerebral vascular structure in the motor cortex of adult mice is stable and is not altered by voluntary exercise.

    Science.gov (United States)

    Cudmore, Robert H; Dougherty, Sarah E; Linden, David J

    2017-12-01

    The cerebral vasculature provides blood flow throughout the brain, and local changes in blood flow are regulated to match the metabolic demands of the active brain regions. This neurovascular coupling is mediated by real-time changes in vessel diameter and depends on the underlying vascular network structure. Neurovascular structure is configured during development by genetic and activity-dependent factors. In adulthood, it can be altered by experiences such as prolonged hypoxia, sensory deprivation and seizure. Here, we have sought to determine whether exercise could alter cerebral vascular structure in the adult mouse. We performed repeated in vivo two-photon imaging in the motor cortex of adult transgenic mice expressing membrane-anchored green fluorescent protein in endothelial cells (tyrosine endothelial kinase 2 receptor (Tie2)-Cre:mTmG). This strategy allows for high-resolution imaging of the vessel walls throughout the lifespan. Vascular structure, as measured by capillary branch point number and position, segment diameter and length remained stable over a time scale of months as did pericyte number and position. Furthermore, we compared the vascular structure before, during, and after periods of voluntary wheel running and found no alterations in these same parameters. In both running and control mice, we observed a low rate of capillary segment subtraction. Interestingly, these rare subtraction events preferentially remove short vascular loops.

  4. CT features on increased cerebral vascular density and its pathological mechanism in patients with cyanotic congenital disease

    International Nuclear Information System (INIS)

    Liu Hui; Zhang Xintang; Wang Jin; Tian Min; He Yuping; Zhao Jinqi; He Qian; Chen Huanjun; Li Fawei

    2012-01-01

    Objective: To investigate CT features on increased cerebral vascular density and its pathological mechanism in patients with cyanotic congenital heart disease (CCHD). Methods: Preoperative brain CT scan and clinical data in 82 patients suffering from CCHD were analyzed. According to the increased levels of vascular density, patients were divided into 4 groups: normal, mild, moderate and severe. Relationships between the increased levels of vascular density and Hb, RBC, HCT, as well as the degree of cyanosis,were studied. AVONA was carried out to test blood CT value of cerebral sinuses, Hb, RBC and HCT in different groups. Descriptive analysis and linear regression were adopted to study the correlation between blood CT value and Hb concentration. The relationship of increased vascular density to degrees of cyanosis was analysed by Spearman. Results: Among 82 patients, 12 patients (14.6%) were found in the group of normal vascular density and 70 patients (85.4%) in the increased vascular density group. Among 70 patients with increased vascular density, 22 patients (26.8% ) with (55.4 ± 2.6) HU, (169 ±6)g/L of Hb, (5.8 ±0.3) × 10 12 /L of RBC and 0.51 ±0.03 of HCT, 29 patients (35.4%) with (61.3 ± 2.9) HU, (209 ± 15 ) g/L, (7.1 ± 0.4) × 10 12 /L, 0.66 ± 0.06 and 19 patients (23.2%) with (68.8 ± 4.2) HU, (242 ± 23) g/L, (8.3 ± 0.9) × 10 12 /L, 0.78 ± 0.08 were observed in the mild,moderate and severe group,respectively. There were significant differences in distribution of blood CT value (HU), Hb, RBC and HCT in different groups (F=163.263, 134.703, 120.974, 136.541; P<0.01). Blood CT value was positively correlated with Hb concentration (r=0.98, P<0.01). Vascular density was also positively correlated with the degree of cyanosis (r=0.86, P<0.01). Conclusions: Cerebral vascular density of patients suffering from CCHD presented different levels of increases based on CT scan results due to rise of RBC stimulated by anoxia. The increased level of vascular

  5. In vivo evidence for long-term vascular remodeling resulting from chronic cerebral hypoperfusion in mice

    OpenAIRE

    Struys, Tom; Govaerts, Kristof; Oosterlinck, Wouter; Casteels, Cindy; Bronckaers, Annelies; Koole, Michel; Van Laere, Koen; Herijgers, Paul; Lambrichts, Ivo; Himmelreich, Uwe; Dresselaers, Tom

    2016-01-01

    We have characterized both acute and long-term vascular and metabolic effects of unilateral common carotid artery occlusion in mice by in vivo magnetic resonance imaging and positron emission tomography. This common carotid artery occlusion model induces chronic cerebral hypoperfusion and is therefore relevant to both preclinical stroke studies, where it serves as a control condition for a commonly used mouse model of ischemic stroke, and neurodegeneration, as chronic hypoperfusion is causati...

  6. Majewski osteodysplastic primordial dwarfism type II (MOPD II) complicated by stroke: clinical report and review of cerebral vascular anomalies.

    Science.gov (United States)

    Brancati, Francesco; Castori, Marco; Mingarelli, Rita; Dallapiccola, Bruno

    2005-12-15

    We report on a 2 9/12-year-old boy with disproportionate short stature, microcephaly, subtle craniofacial dysmorphisms, and generalized skeletal dysplasia, who developed a left hemiparesis. Brain neuroimaging disclosed a complex cerebral vascular anomaly (CVA) with stenosis of the right anterior cerebral artery and telangiectatic collateral vessels supplying the cerebral cortex, consistent with moyamoya disease. Based on clinical and skeletal features, a diagnosis of Majewski osteodysplastic primordial dwarfism type II (MOPD II) was established. Review of 16 published patients with CVA affected by either Seckel syndrome or MOPD II suggested that CVA is preferentially associated to the latter subtype affecting about 1/4 of the patients. 2005 Wiley-Liss, Inc.

  7. Confiabilidade de escalas de comprometimento neurológico em pacientes com acidente vascular cerebral

    Directory of Open Access Journals (Sweden)

    Caneda Marco Aurélio Gralha de

    2006-01-01

    Full Text Available Escalas de comprometimento neurológico são utilizadas na avaliação de novos tratamentos, no acompanhamento da evolução clínica e em decisões terapêuticas. Estudamos a confiabilidade de três escalas: a Escala de Rankin (ER, o Índice de Barthel (IB e a National Institute of Health Stroke Scale (NIHSS versadas em português, em 51 indivíduos com acidente vascular cerebral, estimando a concordância entre resultados de diferentes examinadores. Utilizamos os coeficientes de concordância Kappa e Coeficiente de Correlação Intraclasse. A ER teve coeficientes moderados, substanciais ou excelentes. No IB estes foram substanciais ou excelentes nos totais e nos itens, assim como quando foi estratificado em agrupamentos prognósticos e funcionais. A NIHSS apresentou coeficientes excelentes nos totais, substanciais nos itens e moderados e excelentes nas estratificações em grupos de pontos e de itens afins. Estes resultados indicam que as versões em português da ER, o IB e a NIHSS apresentam adequada confiabilidade.

  8. An intelligent support system for automatic detection of cerebral vascular accidents from brain CT images.

    Science.gov (United States)

    Hajimani, Elmira; Ruano, M G; Ruano, A E

    2017-07-01

    This paper presents a Radial Basis Functions Neural Network (RBFNN) based detection system, for automatic identification of Cerebral Vascular Accidents (CVA) through analysis of Computed Tomographic (CT) images. For the design of a neural network classifier, a Multi Objective Genetic Algorithm (MOGA) framework is used to determine the architecture of the classifier, its corresponding parameters and input features by maximizing the classification precision, while ensuring generalization. This approach considers a large number of input features, comprising first and second order pixel intensity statistics, as well as symmetry/asymmetry information with respect to the ideal mid-sagittal line. Values of specificity of 98% and sensitivity of 98% were obtained, at pixel level, by an ensemble of non-dominated models generated by MOGA, in a set of 150 CT slices (1,867,602pixels), marked by a NeuroRadiologist. This approach also compares favorably at a lesion level with three other published solutions, in terms of specificity (86% compared with 84%), degree of coincidence of marked lesions (89% compared with 77%) and classification accuracy rate (96% compared with 88%). Copyright © 2017. Published by Elsevier B.V.

  9. Asthma is a risk factor for acute chest syndrome and cerebral vascular accidents in children with sickle cell disease

    Directory of Open Access Journals (Sweden)

    Scott Paul J

    2005-01-01

    Full Text Available Abstract Background Asthma and sickle cell disease are common conditions that both may result in pulmonary complications. We hypothesized that children with sickle cell disease with concomitant asthma have an increased incidence of vaso-occlusive crises that are complicated by episodes of acute chest syndrome. Methods A 5-year retrospective chart analysis was performed investigating 48 children ages 3–18 years with asthma and sickle cell disease and 48 children with sickle cell disease alone. Children were matched for age, gender, and type of sickle cell defect. Hospital admissions were recorded for acute chest syndrome, cerebral vascular accident, vaso-occlusive pain crises, and blood transfusions (total, exchange and chronic. Mann-Whitney test and Chi square analysis were used to assess differences between the groups. Results Children with sickle cell disease and asthma had significantly more episodes of acute chest syndrome (p = 0.03 and cerebral vascular accidents (p = 0.05 compared to children with sickle cell disease without asthma. As expected, these children received more total blood transfusions (p = 0.01 and chronic transfusions (p = 0.04. Admissions for vasoocclusive pain crises and exchange transfusions were not statistically different between cases and controls. SS disease is more severe than SC disease. Conclusions Children with concomitant asthma and sickle cell disease have increased episodes of acute chest syndrome, cerebral vascular accidents and the need for blood transfusions. Whether aggressive asthma therapy can reduce these complications in this subset of children is unknown and requires further studies.

  10. mTOR drives cerebral blood flow and memory deficits in LDLR-/- mice modeling atherosclerosis and vascular cognitive impairment.

    Science.gov (United States)

    Jahrling, Jordan B; Lin, Ai-Ling; DeRosa, Nicholas; Hussong, Stacy A; Van Skike, Candice E; Girotti, Milena; Javors, Martin; Zhao, Qingwei; Maslin, Leigh Ann; Asmis, Reto; Galvan, Veronica

    2018-01-01

    We recently showed that mTOR attenuation blocks progression and abrogates established cognitive deficits in Alzheimer's disease (AD) mouse models. These outcomes were associated with the restoration of cerebral blood flow (CBF) and brain vascular density (BVD) resulting from relief of mTOR inhibition of NO release. Recent reports suggested a role of mTOR in atherosclerosis. Because mTOR drives aging and vascular dysfunction is a universal feature of aging, we hypothesized that mTOR may contribute to brain vascular and cognitive dysfunction associated with atherosclerosis. We measured CBF, BVD, cognitive function, markers of inflammation, and parameters of cardiovascular disease in LDLR -/- mice fed maintenance or high-fat diet ± rapamycin. Cardiovascular pathologies were proportional to severity of brain vascular dysfunction. Aortic atheromas were reduced, CBF and BVD were restored, and cognitive dysfunction was attenuated potentially through reduction in systemic and brain inflammation following chronic mTOR attenuation. Our studies suggest that mTOR regulates vascular integrity and function and that mTOR attenuation may restore neurovascular function and cardiovascular health. Together with our previous studies in AD models, our data suggest mTOR-driven vascular damage may be a mechanism shared by age-associated neurological diseases. Therefore, mTOR attenuation may have promise for treatment of cognitive impairment in atherosclerosis.

  11. Cerebral blood flow single-photon emission tomography with {sup 123}I-IMP in vascular dementia

    Energy Technology Data Exchange (ETDEWEB)

    Kawahata, Nobuya; Gotoh, Chiharu; Yokoyama, Sakura; Daitoh, Nobuyuki [Narita Memorial Hospital, Toyohashi, Aichi (Japan)

    2001-06-01

    Cerebral blood flow differences between patients with vascular dementia, patients with multiple lacunar infarction without cognitive dysfunction, and age-matched controls were examined. Thirty four patients with vascular dementia (VD) were selected from consecutive referrals to the Memory Clinic at Narita Memorial Hospital. All the patients had routine assessment including history, physical and neurological examinations, neuropsychological assessment, blood tests, EEG, head MRI, and single photon emission computed tomography (SPECT). All of them fulfilled the NINDS-AIREN diagnostic criteria for vascular dementia. Thirty nine patients with multiple lacunar infarction without cognitive dysfunction and 110 age-matched controls were included in this study. Mean cerebral blood flow (mCBF) and regional cerebral blood flow (rCBF) were measured using N-isopropyl-P-{sup 123}I-iodoamphetamine ({sup 123}I-IMP) and SPECT imager. The mCBF in VD was 27.6{+-}5.3 ml/100 g/min, while those in the control group and multiple lacunar infarction without cognitive dysfunction were 36.6{+-}6.1 ml/100 g/min and 32.5{+-}5.5 ml/100 g/min, respectively. The patients with VD demonstrated significantly reduced mCBF and rCBF in twenty regions including both cerebellar hemispheres as compared with those of the control group. Although there was no significant rCBF differences in bilateral inferior occipital regions and the right cerebellar hemisphere between patients with VD and multiple lacunar infarction without cognitive dysfunction, we could find significant lower rCBF in the remaining brain areas. In spite of the severity of VD, the diffuse decrease of cerebral blood flow was recognized in all patients with VD. (author)

  12. Beta adrenergic overstimulation impaired vascular contractility via actin-cytoskeleton disorganization in rabbit cerebral artery.

    Directory of Open Access Journals (Sweden)

    Hyoung Kyu Kim

    Full Text Available BACKGROUND AND PURPOSE: Beta adrenergic overstimulation may increase the vascular damage and stroke. However, the underlying mechanisms of beta adrenergic overstimulation in cerebrovascular dysfunctions are not well known. We investigated the possible cerebrovascular dysfunction response to isoproterenol induced beta-adrenergic overstimulation (ISO in rabbit cerebral arteries (CAs. METHODS: ISO was induced in six weeks aged male New Zealand white rabbit (0.8-1.0 kg by 7-days isoproterenol injection (300 μg/kg/day. We investigated the alteration of protein expression in ISO treated CAs using 2DE proteomics and western blot analysis. Systemic properties of 2DE proteomics result were analyzed using bioinformatics software. ROS generation and following DNA damage were assessed to evaluate deteriorative effect of ISO on CAs. Intracellular Ca(2+ level change and vascular contractile response to vasoactive drug, angiotensin II (Ang II, were assessed to evaluate functional alteration of ISO treated CAs. Ang II-induced ROS generation was assessed to evaluated involvement of ROS generation in CA contractility. RESULTS: Proteomic analysis revealed remarkably decreased expression of cytoskeleton organizing proteins (e.g. actin related protein 1A and 2, α-actin, capping protein Z beta, and vimentin and anti-oxidative stress proteins (e.g. heat shock protein 9A and stress-induced-phosphoprotein 1 in ISO-CAs. As a cause of dysregulation of actin-cytoskeleton organization, we found decreased level of RhoA and ROCK1, which are major regulators of actin-cytoskeleton organization. As functional consequences of proteomic alteration, we found the decreased transient Ca(2+ efflux and constriction response to angiotensin II and high K(+ in ISO-CAs. ISO also increased basal ROS generation and induced oxidative damage in CA; however, it decreased the Ang II-induced ROS generation rate. These results indicate that ISO disrupted actin cytoskeleton proteome network

  13. LATERALIDAD CEREBRAL Y ENFERMEDAD MENTAL

    Directory of Open Access Journals (Sweden)

    Roberto Serpa Florez

    1984-11-01

    Full Text Available

    La Academia Sueca de Ciencias al conceder en 1981 el Premio Nobel de Medicina a Roger Sperry, David Hubbel y Torsten Wiesel, no hizo más que reconocer, un poco tardíamente, quizás, la rigurosa, tenaz y admirable obra científica de muchos años, de tres eminentes
    investigadores de las neurociencias: Hubbel y Wiesel por su trabajos sobre la corteza visual del cerebro, y Sperry por su labor sobre el funcionamiento de los hemisferios cerebrales que ya desde hace veinte años se publicó en muy conocidas revistas científicas.

    El estudio experimental de las modificaciones producidas por la comisurotomía en la conducta
    de los pacientes, se hizo utilizando métodos ingeniosísimos de investigación. "Los resultados indican, en palabras de Sperry, Gazzaniga y Bogen: "una desunión funcional de los hemisferios derecho e izquierdo, para casi todas las actividades cognoscitivas y otras
    actividades psíquicas. Se ha encontrado que el aprendizaje y la memoria proceden independientemente de cada hemisferio separado. Cada hemisferio parece tener su propia esfera de conciencia para la sensación, la percepción, la ideación y otras actividades mentales y el dominio interno total de la experiencia gnóstica propia está dividida de las experiencias correspondientes del otro hemisferio, con pocas excepciones solamente"...

  14. Response of the sensorimotor cortex of cerebral palsy rats receiving transplantation of vascular endothelial growth factor 165-transfected neural stem cells

    Institute of Scientific and Technical Information of China (English)

    Jielu Tan; Xiangrong Zheng; Shanshan Zhang; Yujia Yang; Xia Wang; Xiaohe Yu; Le Zhong

    2014-01-01

    Neural stem cells are characterized by the ability to differentiate and stably express exogenous ge-nes. Vascular endothelial growth factor plays a role in protecting local blood vessels and neurons of newborn rats with hypoxic-ischemic encephalopathy. Transplantation of vascular endothelial growth factor-transfected neural stem cells may be neuroprotective in rats with cerebral palsy. In this study, 7-day-old Sprague-Dawley rats were divided into ifve groups: (1) sham operation (control), (2) cerebral palsy model alone or with (3) phosphate-buffered saline, (4) vascular en-dothelial growth factor 165 + neural stem cells, or (5) neural stem cells alone. hTe cerebral palsy model was established by ligating the letf common carotid artery followed by exposure to hypox-ia. Phosphate-buffered saline, vascular endothelial growth factor + neural stem cells, and neural stem cells alone were administered into the sensorimotor cortex using the stereotaxic instrument and microsyringe. Atfer transplantation, the radial-arm water maze test and holding test were performed. Immunohistochemistry for vascular endothelial growth factor and histology using hematoxylin-eosin were performed on cerebral cortex. Results revealed that the number of vas-cular endothelial growth factor-positive cells in cerebral palsy rats transplanted with vascular endothelial growth factor-transfected neural stem cells was increased, the time for ifnding water and the ifnding repetitions were reduced, the holding time was prolonged, and the degree of cell degeneration or necrosis was reduced. hTese ifndings indicate that the transplantation of vascu-lar endothelial growth factor-transfected neural stem cells alleviates brain damage and cognitive deifcits, and is neuroprotective in neonatal rats with hypoxia ischemic-mediated cerebral palsy.

  15. Enfermedad de Alzheimer

    OpenAIRE

    Serrano Reyes, Carlos Daniel; Fundación Valle de Lili

    2001-01-01

    ¿Cuáles son las manifestaciones de la enfermedad de Alzheimer?/ Signos de alarma de la enfermedad de Alzheimer/ ¿Cómo se diagnostica la enfermedad?/ ¿Cómo se trata la enfermedad de Alzheimer?/ ¿Qué se está investigando sobre la enfermedad?/ ¿Qué otras enfermedades se parecen al Alzheimer?

  16. Cerebral vascular disease in Hiroshima. Report of a six-year period of surveillance, 1958 to 1964

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, K G; Yano, Katsuhiko; Kato, Hiroo

    1966-08-25

    Cerebral vascular disease (CVD) in the population of Hiroshima, Japan, is described for the period 1958 to 1964. The incidence of CVD in the male population over 30 years of age was 7.4 per 1000 per year and in females 4.1, approximately twice the observed incidence of coronary heart disease. Being based on examined individuals only, these estimates are biased downward, perhaps by a factor of 10%. The frequency of cerebral thrombosis was twice that of cerebral hemorrhage. These findings on incidence and type of CVD are in accord with the known high incidence of this disease in Japan but do not suggest that any disease other than atherosclerosis of the cerebral arteries is responsible. Hypertension, cardiomegaly (ascertained by ECG or chest film), and proteinuria were important factors in the risk of subsequent CVD. The singular association between hypertension and CVD, and the evidence that CVD is declining in Japan, the US and Europe during a period of widespread use of antihypertensive agents, encourage further epidemiologic study in CVD. 30 references, 15 figures, 8 tables.

  17. Central Pulsatile Pressure and Flow Relationship in the Time and Frequency Domain to Characterise Hydraulic Input to the Brain and Cerebral Vascular Impedance.

    Science.gov (United States)

    Kim, Mi Ok; O'Rourke, Michael F; Adji, Audrey; Avolio, Alberto P

    2016-01-01

    In the time domain, pulsatile flow and pressure can be characterised as the ratio of the late systolic boost of flow or pressure to the pulse amplitude so as to estimate the hydraulic input to the brain. While vascular impedance has been widely used to represent the load presented to the heart by the systemic circulation, it has not been applied to the cerebral circulation.We set out to study the relationship between the pressure and the flow augmentation index (AIx) in the time domain and to determine cerebral vascular impedance using aortic blood pressure and cerebral blood flow waveforms in the frequency domain. Twenty-four young subjects (aged 21-39 years) were recruited; aortic pressure was derived using SphygmoCor from radial pressure. Flow waveforms were recorded from the middle cerebral artery. In three subjects, we performed the Valsalva manoeuvre to investigate their response to physiological intervention. There was a linear relationship between flow and pressure AIx, and cerebral impedance values were similar to those estimated for low resistance vascular beds. Substantial change in pressure and flow wave contour was observed during the Valsalva manoeuvre; however, the relationship in both the time and the frequency domains were unchanged. This confirms that aortic pressure and cerebral flow waveform can be used to study cerebral impedance.

  18. Rastreio cognitivo em pacientes com acidente vascular cerebral: um estudo transversal

    Directory of Open Access Journals (Sweden)

    Ana Amália Torres Souza Gandour Dantas

    2014-07-01

    Full Text Available Objetivo O estudo objetivou-se a fazer um rastreio cognitivo nos pacientes com acidente vascular cerebral (AVC, a fim de determinar pontos de corte de acordo com a idade, escolaridade e grau de comprometimento neurológico. Métodos Foi realizado um estudo transversal no qual participaram 109 pacientes ambulatoriais, sendo 61 homens, com média da idade de 59 anos (± 11, média do tempo de escolaridade de 5 anos (± 4 e do tempo de sequela de 16 meses (± 14. Os pacientes foram avaliados por meio do Miniexame do Estado Mental (MEEM e pela National Institute of Health Stroke Scale. Os dados foram analisados pela regressão linear múltipla (stepwise forward. Resultados Verificou-se que as variáveis grau de comprometimento neurológico, idade e escolaridade contribuíram significativamente para o valor global do MEEM e explicaram a variância do estado cognitivo (R2 ajustado = 0,24. Cada aumento do comprometimento neurológico representou diminuição de 0,456 no escore do MEEM. Quanto maior a idade, ocorreu uma diminuição de 0,202 no MEEM, e à medida que diminui o tempo de escolaridade, houve uma diminuição de 0,190 no MEEM. Os pontos de corte variaram de 14 a 22 de acordo com o grau de comprometimento neurológico, idade e escolaridade. Conclusão Os resultados apontaram que, por meio do rastreio positivo de déficit cognitivo, foram encontrados pontos de corte associados ao comprometimento neurológico, necessitando também serem ajustados pela idade e escolaridade, sugerindo que essas associações sejam preferencialmente levadas em consideração na planificação da reabilitação neuropsicológica dos pacientes com AVC.

  19. The arterial circle of Willis of the mouse helps to decipher secrets of cerebral vascular accidents in the human.

    Science.gov (United States)

    Okuyama, Shinichi; Okuyama, Jun; Okuyama, Junko; Tamatsu, Yuichi; Shimada, Kazuyuki; Hoshi, Hajime; Iwai, Junichi

    2004-01-01

    The human brain represents an elaborate product of hominizing evolution. Likewise, its supporting vasculature may also embody evolutionary consequences. Thus, it is conceivable that the human tendency to develop cerebral vascular accidents (CVAs) might represent a disease of hominization. In a search for hominizing changes on the arterial circle of Willis (hWAC), we attempted an anatomical comparison of the hWAC with that of the mouse (mWAC) by injecting aliquots of resin into the vasculature of the mouse and then creating vascular endocasts of the mWAC. The internal carotid artery of the mouse (mICA) unites with the mWAC midway between the middle cerebral artery (mMCA) and posterior cerebral artery (mPCA). The mWAC does not complete a circle: the mWAC nourishes the anterior portion of the circle which branches out to the olfactory artery (OlfA) and mPCA, along with the mMCA, and the basilar artery (mBA) does not connect to the mPCA. The OlfA is thicker than the mMCA. The relative brain weight of the mouse was 74 g on average for a 60 kg male and 86 g for a 60 kg female, respectively, as compared with 1424 g for a 60 kg man. These findings are consistent with the mouse being a nocturnal carnivore that lives on olfactory information in contrast to the human that lives diurnally and depends on visual and auditory information. In man, the human ICA (hICA) unites with the hWAC at a point where the human middle cerebral artery (hMCA) branches out, and thus, blood from the hICA does not flow through the hWAC but drains into the hMCA directly. The hMCA is thicker than the anterior cerebral artery. The hPCA receives blood from the hBA rather than from the hICA, and thus, the entire hWAC forms a closed circuit. Since the hICA drains directly into the hMCA without flowing a distance through the hWAC, the capacitor and equalizer functions of the WAC will be mitigated so much that the resultant hemodynamic changes would render the hMCA more likely to contribute to CVAs. Thus

  20. Panax ginseng extract attenuates neuronal injury and cognitive deficits in rats with vascular dementia induced by chronic cerebral hypoperfusion

    Directory of Open Access Journals (Sweden)

    Jun-De Zhu

    2018-01-01

    Full Text Available Panax ginseng is a slow-growing perennial plant. Panax ginseng extract has numerous biological activities, including antitumor, anti-inflammatory and antistress activities. Panax ginseng extract also has a cognition-enhancing effect in rats with alcohol-induced memory impairment. In this study, we partially occluded the bilateral carotid arteries in the rat to induce chronic cerebral hypoperfusion, a well-known model of vascular dementia. The rats were then intragastrically administered 50 or 100 mg/kg Panax ginseng extract. Morris water maze and balance beam tests were used to evaluate memory deficits and motor function, respectively. Protein quantity was used to evaluate cholinergic neurons. Immunofluorescence staining was used to assess the number of glial fibrillary acidic protein-positive cells. Western blot assay was used to evaluate protein levels of vascular endothelial growth factor, basic fibroblast growth factor, Bcl-2 and Bax. Treatment with Panax ginseng extract for 8 weeks significantly improved behavioral function and increased neuronal density and VEGF and bFGF protein expression in the hippocampal CA3 area. Furthermore, Panax ginseng extract reduced the number of glial fibrillary acidic protein-immunoreactive cells, and it decreased apoptosis by upregulating Bcl-2 and downregulating Bax protein expression. The effect of Panax ginseng extract was dose-dependent and similar to that of nimodipine, a commonly used drug for the treatment of vascular dementia. These findings suggest that Panax ginseng extract is neuroprotective against vascular dementia induced by chronic cerebral hypoperfusion, and therefore might have therapeutic potential for preventing and treating the disease.

  1. Avaliação da linguagem após acidente vascular cerebral em adultos no estado de Sergipe

    Directory of Open Access Journals (Sweden)

    João Sigefredo Arruda

    2014-06-01

    Full Text Available Objetivo analisar a ocorrência de distúrbios de linguagem nos indivíduos que sofreram Acidente Vascular Cerebral. Métodos foi avaliada a linguagem de todos os pacientes acometidos por Acidente Vascular Cerebral, atendidos de fevereiro a agosto de 2012, no setor de fisioterapia de centro de referência em educação e saúde do Estado de Sergipe. A avaliação foi baseada no Teste do Rio de Janeiro (2005. A análise dos dados foi realizada por meio de estatística descritiva e probabilística através da distribuição de frequência, cálculos da média, desvio padrão e percentis, do Teste U de Mann-Whitney e Qui-Quadrado. Resultado foram encontrados 31 indivíduos, de ambos os gêneros, com idade variando de 30 a 94 anos. Foi evidenciado que as variáveis: gênero, escolaridade e idade, influenciam no desempenho do teste, verificando-se que o gênero masculino, sujeitos abaixo de 65 anos e os com escolaridade acima de fundamental incompleto pontuam mais. Conclusão maior percentual da amostra apresenta mais alteração na compreensão do que na expressão.

  2. Vascular and parenchymal amyloid pathology in an Alzheimer disease knock-in mouse model: interplay with cerebral blood flow.

    Science.gov (United States)

    Li, Hongmei; Guo, Qinxi; Inoue, Taeko; Polito, Vinicia A; Tabuchi, Katsuhiko; Hammer, Robert E; Pautler, Robia G; Taffet, George E; Zheng, Hui

    2014-08-09

    Accumulation and deposition of β-amyloid peptides (Aβ) in the brain is a central event in the pathogenesis of Alzheimer's disease (AD). Besides the parenchymal pathology, Aβ is known to undergo active transport across the blood-brain barrier and cerebral amyloid angiopathy (CAA) is a prominent feature in the majority of AD. Although impaired cerebral blood flow (CBF) has been implicated in faulty Aβ transport and clearance, and cerebral hypoperfusion can exist in the pre-clinical phase of Alzheimer's disease (AD), it is still unclear whether it is one of the causal factors for AD pathogenesis, or an early consequence of a multi-factor condition that would lead to AD at late stage. To study the potential interaction between faulty CBF and amyloid accumulation in clinical-relevant situation, we generated a new amyloid precursor protein (APP) knock-in allele that expresses humanized Aβ and a Dutch mutation in addition to Swedish/London mutations and compared this line with an equivalent knock-in line but in the absence of the Dutch mutation, both crossed onto the PS1M146V knock-in background. Introduction of the Dutch mutation results in robust CAA and parenchymal Aβ pathology, age-dependent reduction of spatial learning and memory deficits, and CBF reduction as detected by fMRI. Direct manipulation of CBF by transverse aortic constriction surgery on the left common carotid artery caused differential changes in CBF in the anterior and middle region of the cortex, where it is reduced on the left side and increased on the right side. However these perturbations in CBF resulted in the same effect: both significantly exacerbate CAA and amyloid pathology. Our study reveals a direct and positive link between vascular and parenchymal Aβ; both can be modulated by CBF. The new APP knock-in mouse model recapitulates many symptoms of AD including progressive vascular and parenchymal Aβ pathology and behavioral deficits in the absence of APP overexpression.

  3. Characteristics of Cerebral Blood Flow in Vascular Dementia using SPM Analysis Compared to Normal Control and Alzheimer's Dementia

    International Nuclear Information System (INIS)

    Kang, Do Young; Park, Kyung Won; Kim, Jae Woo

    2003-01-01

    Cerebral perfusion pattern of vascular dementia (VD) was not well established and overlap of cerebral perfusion pattern was reported between VD and Alzheimer's dementia (AD). The aim of this study is to assess the specific patterns of SPECT finding in VD compared with normal control subjects and to disclose differences of cerebral blood flow between subjects with VD and AD were investigated using statistic parametric mapping analysis. Thirty-two VD (mean age ; 67.86.4 years, mean CDR ; 0.980.27), 51 AD (mean age ; 71.47.2 years, CDR ; 1.160.47), which were matched for age and severity of dementia, and 30 normal control subjects (mean age ; 60.17.7 years) participated in this study. The Tc-99m HMPAO brain perfusion SPECT data were analyzed by SPM99. The SPECT data of the patients with VD were compared to those of the control subjects and then compared to the patients with AD. SPM analysis of the SPECT image showed significant perfusion deficits in the both frontal (both cingulate gyrus, both inferior frontal gyrus, B no.47, right frontal rectal gyrus, left frontal subcallosal gyrus, B no.25), both temporal (right insula, B no.13, left superior temporal gyrus, left parahippocampal gyrus, B no.35), occipital (occipital lingual gyrus), right corpus callosum and right cerebellar tonsil regions in subjects with VD compared with normal control subjects (uncorrected p<0.01). Comparison of the two dementia groups (uncorrected p<0.01) revealed significant hypoperfusion in both parietal posterior central gyrus, right inferior frontal gyrus (B no.47), left insula, right thalamus (ventral lateral nucleus), right claustrum and right occipital cuneus regions in VD group compared with AD. There were no typical confined regional hypoperfusion areas but scattered multiple perfusion deficits in VD compared AD. These findings may be helpful to reflect the pathophysiological mechanisms of VD and to disclose differences of cerebral blood flow between subjects with VD and AD

  4. Enfermedad de Parkinson

    OpenAIRE

    Orozco V., Jorge Luis; Fundación Valle de Lili

    2002-01-01

    ¿Qué tan frecuente es la enfermedad de Parkinson?/ ¿Qué ocasiona la enfermedad?/ ¿Existen otras formas de Parkinsonismo?/ ¿Quién desarrolla la enfermedad de Parkinson?/ ¿Cuales son los síntomas principales?/ ¿Cómo se diagnostica la enfermedad de Parkinson?/ ¿Cómo se trata la enfermedad?/Tratamiento quirúrgico/Aspectos prácticos del tratamiento/Verdades sobre la enfermedad de Parkinson.

  5. Reduced cerebral oxygen–carbohydrate index during endotracheal intubation in vascular surgical patients

    DEFF Research Database (Denmark)

    Fabricius-Bjerre, Andreas; Overgaard, Anders; Winther-Olesen, Marie

    2015-01-01

    Brain activation reduces balance between cerebral consumption of oxygen versus carbohydrate as expressed by the so-called cerebral oxygen-carbohydrate-index (OCI). We evaluated whether preparation for surgery, anaesthesia including tracheal intubation and surgery affect OCI. In patients undergoing...... aortic surgery, arterial to internal jugular venous (a-v) concentration differences for oxygen versus lactate and glucose were determined from before anaesthesia to when the patient left the recovery room. Intravenous anaesthesia was supplemented with thoracic epidural anaesthesia for open aortic surgery...

  6. Evidencias de compromiso cerebral en el estadio crónico de la enfermedad de Chagas obtenidas por medio del potencial P300 y de electroencefalografía cuantificada

    Directory of Open Access Journals (Sweden)

    PROST JULIO OSCAR

    2000-01-01

    Full Text Available Es reconocido el compromiso del sistema nervioso periférico en la etapa crónica de la enfermedad de Chagas, incorporándose últimamente evidencias tomográficas y neuropsicológicas de compromiso cerebral. Con el objetivo de evaluar dicho compromiso por medio del potencial P 300 y la electroencefalografía cuantificada (EEGc se estudiaron 35 pacientes (26 a 55 años, comparados con un grupo control de similar número y edad (29 a 55 años. Se observó: latencia de la onda P 3 mayor en el grupo en estudio (331,24 ± 24,02 contra 318,86 ± 23,18 (p=0,01716. El EEGc mostró diferencias en la potencia relativa de la banda Beta 1, menor en los pacientes (p=1,62834E5 y en la frecuencia dominante, 1 Hz menor en los chagasicos (p=0,01077. El análisis multivariado discrimina tres subpoblaciones: una normal, una de enfermos con incremento alfa y otra de enfermos con decremento alfa e incremento delta y theta (p=0,00004. La proporción de resultados patológicos fue del 20 % en los EEGc y el 11,43 % en los potenciales cognitivos. No se correlacionó el compromiso neurológico y el cardíaco. Se concluye que existen francos indicadores electrofisiológicos de compromiso cerebral en el estadio crónico de la enfermedad de Chagas, hallazgo que refuerza a los obtenidos por otros métodos.

  7. Variação temporal no desempenho em testes de memória em pacientes com doença vascular cerebral Temporal variation in memory tests performance in cerebral vascular disease patients

    Directory of Open Access Journals (Sweden)

    Tania Fernandes Campos

    2007-01-01

    Full Text Available Buscando adequar a avaliação neuropsicológica à organização temporal do organismo humano, avaliou-se o desempenho em testes de memória em 12 pacientes pós Doença Vascular Cerebral e 12 indivíduos controle, de ambos os sexos, com idade de 45 a 65 anos. Foram aplicados dois testes de memória com estímulos visuais (figuras e dois com estímulos verbais (palavras, em 3 dias consecutivos por semana, às 08:00, 10:00 e 12:00 h na primeira semana e às 14:00 e 16:00 h na seguinte. Os pacientes apresentaram menor número de acertos do que os indivíduos controle em todos os testes aplicados (pThis study intended to investigate the performance in memory tests in order to adequate the neuropsychological evaluation to the temporal order of the human organism. Twelve cerebral vascular accident patients and 12 controls, of both sexes and 45-65 years old were studied. Two memory tests with visual stimuli (pictures and two with verbal stimuli (words were applied three times a day (08:00, 10:00 and 12:00 h during the first week and twice a day (14:00 and 16:00 h in the second week, during three consecutive days in two consecutive weeks. The patients showed lower scores than control subjects in all applied tests (p<0,05. The greater test sensitivity was at 14:00 h for the free recall test and at 16:00 h for recognition tests. According to these results, it is concluded that neuropsychological evaluations should be conducted preferably in the afternoon, as well for the first evaluation as for the re-evaluations.

  8. Reduced vascular amyloid burden at microhemorrhage sites in cerebral amyloid angiopathy

    NARCIS (Netherlands)

    van Veluw, Susanne J.; Kuijf, Hugo J.; Charidimou, Andreas; Viswanathan, Anand; Biessels, Geert Jan; Rozemuller, Annemieke J M; Frosch, Matthew P.; Greenberg, Steven M.

    Microhemorrhages are strongly associated with advanced cerebral amyloid angiopathy (CAA). Although it has been frequently proposed that the deposition of Aβ in the walls of cortical vessels directly causes microhemorrhages, this has not been studied in great detail, mainly because the ruptured

  9. Análise de custo-efetividade da trombólise com alteplase no Acidente Vascular Cerebral

    OpenAIRE

    Araújo,Denizar Vianna; Teich,Vanessa; Passos,Roberta Benitez Freitas; Martins,Sheila Cristina Ouriques

    2010-01-01

    FUNDAMENTO: Acidente Vascular Cerebral (AVC) é a principal causa de óbito no Brasil e pouca informação está disponível sobre custo do tratamento. OBJETIVO: Elaborar análise de custo-efetividade da trombólise no AVC, até três horas após o início dos sintomas, comparando o tratamento com alteplase versus conservador, sob a perspectiva do Sistema Único de Saúde (SUS). MÉTODOS: Modelo de análise de decisão foi desenvolvido para comparar os dois tratamentos. Ciclos foram considerados, durante os q...

  10. Regional cerebral blood flow before and after vascular surgery in patients with transient ischemic attacks with 133-xenon inhalation tomography

    DEFF Research Database (Denmark)

    Vorstrup, S; Hemmingsen, Ralf; Lindewald, H

    1982-01-01

    Cerebral blood flow CBF was studied in 14 patients with transient ischemic attacks TIA and arteriosclerotic neck vessel disease. CBF was measured by a rapidly rotating single photon emission computerized tomograph using Xenon-133 inhalation. This method yields images of 3 brain slices depicting CBF...... with no abnormality on the CT-scan. The abnormal blood flow pattern was found to be unchanged after clinically successful reconstructive vascular surgery. This suggests the presence of irreversible ischemic tissue damage without gross emollition (incomplete infarction). It is concluded, that TIAs are often harmful...... events, as no less than 9 of the 14 patients studied had evidence of complete and/or incomplete infarction. Thorough examination and rational therapy should be instituted as soon as possible to prevent further ischemic lesions....

  11. Vitamin D status and vascular dementia due to cerebral small vessel disease in the elderly Asian Indian population.

    Science.gov (United States)

    Prabhakar, Puttachandra; Chandra, Sadanandavalli Retnaswami; Supriya, Manjunath; Issac, Thomas Gregor; Prasad, Chandrajit; Christopher, Rita

    2015-12-15

    Vitamin D plays vital roles in human health and recent studies have shown its beneficial effect on brain functioning. The present study was designed to evaluate the association of vitamin D with vascular dementia (VaD) due to cerebral small vessel disease (SVD) in Asian Indian population. 140 VaD patients aged ≥ 60 years with neuroimaging evidence of SVD, and 132 age and gender-matched controls, were investigated. Vitamin D status was estimated by measuring serum 25-hydroxy vitamin D. Logistic regression model revealed that deficient levels of vitamin D (vitamin D deficiency and insufficiency (12-20 ng/ml), the odds were increased to 31.6-fold and 14.4-fold, respectively. However, in hypertensives with vitamin D sufficiency (>20 ng/ml), the odds of VaD were increased by 3.8-fold only. Pearson correlation showed that serum vitamin D was inversely associated with systolic and diastolic blood pressure (r=-0.401 and -0.411, pvitamin D-deficient subjects. Since the combined presence of hypertension and vitamin D deficiency increases the probability of developing VaD, screening for vitamin D status in addition to regular monitoring of blood pressure, could reduce the risk of VaD associated with cerebral SVD in the elderly Asian Indian subjects. Copyright © 2015 Elsevier B.V. All rights reserved.

  12. Effects of edaravone combined with hyperbaric oxygen on cerebral vascular dynamics, oxidative stress products and inflammatory factors in patients with acute cerebral hemorrhage

    Directory of Open Access Journals (Sweden)

    Xia Li

    2017-10-01

    therapy can effectively improve cerebral vascular dynamics, reduce oxidative stress and inflammatory response in patients with ACH, which is beneficial to the prognosis of patients.

  13. Cine gamma-angiography. Aids for the diagnosis of cerebral vascular disease

    International Nuclear Information System (INIS)

    Grasset, Gilles.

    1975-01-01

    Gamma-angioencephalography allows in a simple examination, the bilateral visualization of the injection of the main cerebral vessels, the regional measurement of transit times and, if it occurs, the observation of the diffusion of the tracer in a lesion. These different steps of the investigation are described and its diagnostic value is discussed. Sup(99m)Tc is the radioisotope used. To increase the accuracy of the qualitative data obtained from the gamma camera, a data processing system is used. Regions of interest are selected over the carotid and cerebral middle arteries. Time function curves are generated for each region of interest. From mathematical models, some pathological aspects of transit curves can be explained [fr

  14. Mechanical injury induces brain endothelial-derived microvesicle release: Implications for cerebral vascular injury during traumatic brain injury

    Directory of Open Access Journals (Sweden)

    Allison M. Andrews

    2016-02-01

    occludin following brain trauma. These results indicate that following TBI, the cerebral endothelium undergoes vascular remodeling through shedding of eMVs containing TJPs and endothelial markers. The detection of this shedding potentially allows for a novel methodology for real-time monitoring of cerebral vascular health (remodeling, BBB status and neuroinflammation following a TBI event.

  15. Mechanical Injury Induces Brain Endothelial-Derived Microvesicle Release: Implications for Cerebral Vascular Injury during Traumatic Brain Injury.

    Science.gov (United States)

    Andrews, Allison M; Lutton, Evan M; Merkel, Steven F; Razmpour, Roshanak; Ramirez, Servio H

    2016-01-01

    . These results indicate that following TBI, the cerebral endothelium undergoes vascular remodeling through shedding of eMVs containing TJPs and endothelial markers. The detection of this shedding potentially allows for a novel methodology for real-time monitoring of cerebral vascular health (remodeling), BBB status and neuroinflammation following a TBI event.

  16. Imaging findings and cerebral perfusion in arterial ischemic stroke due to transient cerebral arteriopathy in children; Achados de imagem e perfusao arterial cerebral em acidente vascular cerebral isquemico devido a arteriopatia transitoria em crianca

    Energy Technology Data Exchange (ETDEWEB)

    Barbosa Junior, Alcino Alves, E-mail: alcinojr@uol.com.br [Departamento de Diagnostico por Imagem, Hospital Israelita Albert Einstein - HIAE, Sao Paulo, SP (Brazil); Ellovitch, Saada Resende de Souza [Neuropediatria, Hospital Israelita Albert Einstein - HIAE, Sao Paulo, SP (Brazil); Pincerato, Rita de Cassia Maciel [Hospital Samaritano, Sao Paulo, SP (Brazil)

    2012-04-15

    We report the case of a 4-year-old female child who developed an arterial ischemic stroke in the left middle cerebral artery territory, due to a proximal stenosis of the supraclinoid internal carotid artery, most probably related to transient cerebral arteriopathy of childhood. Computed tomography scan, magnetic resonance imaging, perfusion magnetic resonance and magnetic resonance angiography are presented, as well as follow-up by magnetic resonance and magnetic resonance angiography exams. Changes in cerebral perfusion and diffusion-perfusion mismatch call attention. As far as we know, this is the first report of magnetic resonance perfusion findings in transient cerebral arteriopathy. (author)

  17. Use of intraoperative cerebral and spinal digital angiography as an aid to vascular neurosurgery

    International Nuclear Information System (INIS)

    Joseph, G.J.; Barrow, D.L.; Hoffman, J.C.; O'Brien, M.K.

    1990-01-01

    This paper determines the utility of intraoperative digital subtraction angiography (IODSA) in evaluating completeness of resection/clipping of vascular abnormalities of the central nervous system. IODSA was performed in 61 patients undergoing resection of intracranial arteriovenous malformation (AVMs) (n = 25), aneurysms (n = 33), and spinal AVMs (n = 3). Results were reviewed immediately; if further surgery was required, additional studies were performed until resection was considered radiographically and surgically complete. All patients with AVM and 15 with aneurysm underwent postoperative angiography for confirmation of IODSA findings

  18. Both acute and prolonged administration of EPO reduce cerebral and systemic vascular conductance in humans

    DEFF Research Database (Denmark)

    Rasmussen, Peter; Kim, Yu-Sok; Krogh-Madsen, Rikke

    2012-01-01

    Administration of erythropoietin (EPO) has been linked to cerebrovascular events. EPO reduces vascular conductance, possibly because of the increase in hematocrit. Whether EPO in itself affects the vasculature remains unknown; here it was evaluated in healthy males by determining systemic...... and cerebrovascular variables following acute (30,000 IU/d for 3 d; n=8) and chronic (5000 IU/week for 13 wk; n=8) administration of EPO, while the responsiveness of the vasculature was challenged during cycling exercise, with and without hypoxia. Prolonged administration of EPO increased hematocrit from 42.5 ± 3...

  19. A study of radiation-induced cerebral vascular injury in nasopharyngeal carcinoma patients with radiation-induced temporal lobe necrosis.

    Directory of Open Access Journals (Sweden)

    Jianhong Ye

    Full Text Available To investigate radiation-induced carotid and cerebral vascular injury and its relationship with radiation-induced temporal lobe necrosis in nasopharyngeal carcinoma (NPC patients.Fifty eight NPC patients with radiation-induced temporal lobe necrosis (TLN were recruited in the study. Duplex ultrasonography was used to scan bilateral carotid arterials to evaluate the intima-media thickness (IMT and occurrence of plaque formation. Flow velocities of bilateral middle cerebral arteries (MCAs, internal carotid arteries (ICAs and basal artery (BA were estimated through Transcranial Color Doppler (TCD. The results were compared with data from 33 patients who were free from radiation-induced temporal lobe necrosis after radiotherapy and 29 healthy individuals.Significant differences in IMT, occurrence of plaques of ICAs and flow velocities of both MCAs and ICAs were found between patients after radiotherapy and healthy individuals (p<0.05. IMT had positive correlation with post radiation interval (p = 0.049. Compared with results from patients without radiation-induced TLN, the mean IMT was significantly thicker in patients with TLN (p<0.001. Plaques were more common in patients with TLN than patients without TLN (p = 0.038. In addition, flow velocities of MCAs and ICAs in patients with TLN were much faster (p<0.001, p<0.001. Among patients with unilateral TLN, flow velocity of MCAs was significantly different between ipsilateral and contralateral sides to the lesion (p = 0.001.Thickening of IMT, occurrence of plaque formation and hemodynamic abnormality are more common in patients after radiotherapy, especially in those with TLN, compared with healthy individuals.

  20. FLAIR vascular hyperintensities and 4D MR angiograms for the estimation of collateral blood flow in anterior cerebral artery ischemia.

    Directory of Open Access Journals (Sweden)

    Matthias Gawlitza

    Full Text Available To assess FLAIR vascular hyperintensities (FVH and dynamic (4D angiograms derived from perfusion raw data as proposed magnetic resonance (MR imaging markers of leptomeningeal collateral circulation in patients with ischemia in the territory of the anterior cerebral artery (ACA.Forty patients from two tertiary care university hospitals were included. Infarct volumes and perfusion deficits were manually measured on DWI images and TTP maps, respectively. FVH and collateral flow on 4D MR angiograms were assessed and graded as previously specified.Forty-one hemispheres were affected. Mean DWI lesion volume was 8.2 (± 13.9; range 0-76.9 ml, mean TTP lesion volume was 24.5 (± 17.2, range 0-76.7 ml. FVH were observed in 26/41 (63.4% hemispheres. Significant correlations were detected between FVH and TTP lesion volume (ρ = 0.4; P<0.01 absolute (ρ = 0.37; P<0.05 and relative mismatch volume (ρ = 0.35; P<0.05. The modified ASITN/SIR score correlated inversely with DWI lesion volume (ρ = -0.58; P<0.01 and positively with relative mismatch (ρ = 0.29; P< 0.05. ANOVA of the ASITN/SIR score revealed significant inter-group differences for DWI (P<0.001 and TTP lesion volumes (P<0.05. No correlation was observed between FVH scores and modified ASITH/SIR scores (ρ = -0.16; P = 0.32.FVH and flow patterns on 4D MR angiograms are markers of perfusion deficits and tissue at risk. As both methods did not show a correlation between each other, they seem to provide complimentary instead of redundant information. Previously shown evidence for the meaning of these specific MR signs in internal carotid and middle cerebral artery stroke seems to be transferrable to ischemic stroke in the ACA territory.

  1. Can vascular risk factors influence number and size of cerebral metastases? A 3D-MRI study in patients with different tumor entities.

    Science.gov (United States)

    Nagel, Sandra; Berk, Benjamin-Andreas; Kortmann, Rolf-Dieter; Hoffmann, Karl-Titus; Seidel, Clemens

    2018-02-01

    There is increasing evidence that cerebral microangiopathy reduces number of brain metastases. Aim of this study was to analyse if vascular risk factors (arterial hypertension, diabetes mellitus, smoking, and hypercholesterolemia) or the presence of peripheral arterial occlusive disease (PAOD) can have an impact on number or size of brain metastases. 200 patients with pre-therapeutic 3D-brain MRI and available clinical data were analyzed retrospectively. Mean number of metastases (NoM) and mean diameter of metastases (mDM) were compared between patients with/without vascular risk factors (vasRF). No general correlation of vascular risk factors with brain metastases was found in this monocentric analysis of a patient cohort with several tumor types. Arterial hypertension, diabetes mellitus, hypercholesterolemia and smoking did not show an effect in uni- and multivariate analysis. In patients with PAOD the number of BM was lower than without PAOD. This was the case independent from cerebral microangiopathy but did not persist in multivariate analysis. From this first screening approach vascular risk factors do not appear to strongly influence brain metastasation. However, larger prospective multi-centric studies with better characterized severity of vascular risk are needed to more accurately detect effects of individual factors. Copyright © 2018 Elsevier B.V. All rights reserved.

  2. Perfil Clínico-Epidemiológico de Pacientes que inician Terapia Intensiva con Estatinas para La Prevención Secundaria de Enfermedad Vascular en España

    Directory of Open Access Journals (Sweden)

    Diego Macías Saint Gerons

    2015-01-01

    Full Text Available Las nuevas recomendaciones respecto a la utilización de estatinas potentes y/o dosis altas (terapia intensiva para el tratamiento de la enfermedad cardiovascular se han basado en la extrapolación de los resultados de los ensayos clínicos. El objetivo fue describir el perfil clínico-epidemiológico de los pacientes que inician tratamiento con estatinas para la prevención secundaria en España y estudiar qué factores determinan la utilización de estatinas en terapia intensiva. Métodos: Estudio transversal a partir de 88.751 pacientes ≥45 años con enfermedad cardiovascular que iniciaron tratamiento con estatinas (enero 2007-diciembre 2011. Los tratamientos con dosis superiores a 40 mg/día de simvastatina (o estatina equipotente se consideraron terapia intensiva. Se construyeron modelos de regresión logística multivariante con el fin de examinar la asociación de las variables relacionadas con la prescripción de terapia intensiva respecto al uso de la terapia moderada. Resultados: Se identificó a 16.857 personas adultas que iniciaron tratamiento con estatinas para la prevención secundaria. Los factores predictores para el inicio de terapia intensiva fueron el año de prescripción, sexo masculino (odds ratio ajustada: 1,70; IC95%: 1,44-2,00, edad >75 años (1,39; 1,15-1,69, historia previa de enfermedad isquémica coronaria (1,71; 1,44-2,04, accidente isquémico transitorio de cualquier localización (1,24; 0,97-1,59, tabaquismo (1,62; 1,34-1,95, hipertensión (1,41; 1,20-1,65 y tratamiento reciente con fibratos (2,32; 1,27-4,26. Conclusiones: La utilización de terapia intensiva con estatinas está determinada por el tipo de evento vascular previo y con la edad (>75 años, en los que el balance beneficio-riesgo podría ser discutible. No se encuentran diferencias estadísticamente significativas en función del c-LDL.

  3. Temporal variation in memory tests performance in cerebral vascular disease patients / Variação temporal no desempenho em testes de memória em pacientes com doença vascular cerebral

    Directory of Open Access Journals (Sweden)

    Tania Fernandes Campos

    2007-01-01

    Full Text Available This study intended to investigate the performance in memory tests in order to adequate the neuropsychological evaluation to the temporal order of the human organism. Twelve cerebral vascular accident patients and 12 controls, of both sexes and 45-65 years old were studied. Two memory tests with visual stimuli (pictures and two with verbal stimuli (words were applied three times a day (08:00, 10:00 and 12:00 h during the first week and twice a day (14:00 and 16:00 h in the second week, during three consecutive days in two consecutive weeks. The patients showed lower scores than control subjects in all applied tests (p<0,05. The greater test sensitivity was at 14:00 h for the free recall test and at 16:00 h for recognition tests. According to these results, it is concluded that neuropsychological evaluations should be conducted preferably in the afternoon, as well for the first evaluation as for the re-evaluations.

  4. [Processes of logical thought in a case of cerebral vascular lesion].

    Science.gov (United States)

    Blanco Men ndez, R; Aguado Balsas, A M

    Reasoning and logical thought processes have traditionally been attributed to frontal lobe function or,on the other hand, have been considered as diffuse functions of the brain. However, there is today evidence enough about the possibility to find dissociations in thought processes, depending on logical structure of the experimental tasks and referring to different areas of the brain, frontal and post rolandic ones. To study possible dissociations between thought structures corresponding to categorical and relational logic, on one hand, and propositional logic on the other hand. The case of a brain injured patient with vascular etiology, localized in left frontal parietal cortex, is presented. A specific battery of reasoning tests has been administered. . A differential performance at some reasoning experimental tasks has been found depending on such logical conceptual structures. The possibility of establishing dissociations among certain logical thought and intelectual functions depending on localization of possible brain lesion (frontal versus temporal) is discussed.

  5. [Medical and socio-economic effects of early rehabilitation of patients with acute cerebral vascular accidents].

    Science.gov (United States)

    Popov, A V; Cherednichenko, T V; Lishnevskiĭ, S A; Khomenko, T V; Prigornitskaia, Ia I

    2012-01-01

    Acute ischemic brain injury (stroke, stroke), a leader among the causes of morbidity and mortality in the world. This pathology is one of the most pressing health and social problems that cause enormous economic damage to society, due to the high fatality rate, significant disability and social maladjustment of patients, which is based in most cases are the motor and cognitive impairment. Despite the fact that, currently established risk factors and pathophysiological basis of this disease, the availability of effective methods of diagnosing illness, still a practicing neurologist in some cases difficult to find adequate therapy that could effectively reach a well-established neurological deficit. Therefore the search for treatments that effectively reduce the health and social consequences of vascular damage to the brain, is one of the priority areas of neurology.

  6. MR imaging assessment of cerebral vascular disease: A combination of angiographic and parenchymal techniques

    International Nuclear Information System (INIS)

    Masaryk, T.J.; Modic, M.T.; Ross, J.S.; Ruggieri, P.; Laub, G.; Haacke, E.M.

    1988-01-01

    This study tested the accuracy and clinical utility of a three-dimensional MR angiographic technique of the cervical carotids in combination with a routine spin-echo examination of the brain as a screening examination for cerebrovascular disease in 23 patients. The technique used a fast low-angle shot sequence with a reduced echo time and voxel size, gradient refocusing, and time of flight effects to minimize signal loss secondary to phase dispersion and maximize vessel contrast. Subsequent multiplanar three-dimensional reconstructions were obtained at 5 0 increments about the z-axis via ray-tracing linear thresholding algorithms. Examinations were compared with IV/IA-digital subtraction angiography or Doppler US as the objective of accuracy. Results of this ongoing study indicate that an MR angiographic screening examination can be coupled with routine brain MR imaging with only a 10-14 minute extension of examination time, providing both a vascular and a parenchymal evaluation

  7. Relationship of serum S1P and HC-II levels with vasoactive substances and cytokines in patients with cerebral vascular restenosis after stent implantation

    Directory of Open Access Journals (Sweden)

    Yong Liu

    2017-04-01

    Full Text Available Objective: To study the relationship of serum sphingosine 1-phosphate (S1P and heparin cofactor II (HCII levels with vasoactive substances and cytokines in patients with cerebral vascular restenosis after stent implantation. Methods: 52 patients who received cerebrovascular stent implantation and developed restenosis in our hospital between May 2012 and December 2015 were collected as observation group, and 40 healthy patients with cerebrovascular stent implantation who had re-examination in our hospital during the same period were selected as control group. ELISA method was used to detect serum S1P and HC-II levels as well as vasoactive substance and inflammatory factor contents. Spearman correlation analysis was used to evaluate the relationship of serum S1P and HC-II levels with vasoactive substances and inflammatory factors. Results: Serum S1P and HC-II levels of observation group were lower than those of control group (P<0.05; serum vasoactive substances endothelin (ET, angiotensin II (AngII and thromboxane B2 (TXB2 contents of observation group were higher than those of control group while nitric oxide (NO content was lower than that of control group (P<0.05; serum inflammatory factors hypersensitive C-reactive protein (hs-CRP, interleukin-1 (IL-1, IL-6, IL-8 and IL-11 contents of observation group were higher than those of control group (P<0.05. Serum S1P and HC-II levels in patients with cerebral vascular restenosis after stent implantation were directly correlated with vasoactive substance and inflammatory factor contents. Conclusion: Serum S1P and HC-II levels decrease in patients with cerebral vascular restenosis after stent implantation, and it is an important cause of cerebral vascular dysfunction and systemic inflammatory response.

  8. Regional cerebral blood flow analysis of vascular dementia by the 133Xe inhalation method

    International Nuclear Information System (INIS)

    Watanabe, Sho; Maruyama, Michiyuki; Miyakawa, Koichi; Kamijima, Gonbei; Sasaki, Yasuto.

    1987-01-01

    Eighty-one cases of ischemic cerebrovascular disease were investigated using the 133 Xe inhalation method. Fifty-six were male and 25 were female. ages ranged from 25 to 84, with a mean age of 65.4 years. Thirty-two had cerebrovascular dementia and 49 had non dementia infarction. Two criteria were used for a diagnosis of cerebrovascular dementia: 1) the presense of cerebrovascular disease and 2) a score of less than 21.5 Hasegawa's dementia scale. By computed tomographic findings all cases were classified into three groups: lesion on a right hemisphere, a left hemisphere and bilateral hemispheres. Regional cerebral blood flow (rCBF) was calculated by 2-compartmental analysis and initial slope index method. The results are as follows: 1) Cases of cerebrovascular dementia tended to have a lower mean rCBF value. (p < 0.001). 2)rCBF patterns showed lower values in the central area for cases of laterality as determined by CT scan. 3) Both interhemispheric mean rCBF and mean rCBF classified from main lesion were no significant different between dementia group and non dementia group. 4) A comparison of mean rCBF with Hasegawa's dementia scale revealed a statistically significant correlation. (p < 0.001). (author)

  9. Enfermedad acido-peptica

    OpenAIRE

    Echavarría, Hector Raúl; Fundación Valle de Lili; Mendoza, Alfredo

    1999-01-01

    ¿En qué consisten las enfermedades que se denominan con el término genérico de enfermedad acido-péptica?/ ¿Cuáles son sus síntomas?/ ¿Cómo se comporta la enfermedad acido-péptica y cuáles son sus causas?/ ¿Cómo se evitan estas enfermedades y como se tratan?

  10. Occult cerebral vascular malformation: High-field (2.0 T) MR imaging and comparison with CT

    International Nuclear Information System (INIS)

    Chang, Kee Hyun; Chung, Jin Wook; Han, Moon Hee; Kang, Heung Sik; Han, Man Chung; Kim, Chu Wan

    1989-01-01

    Extensive experience with CT has led to the recognition of criteria for the diagnosis of occult cerebral vascular malformation. MR demonstrated all lesions as hemorrhage foci. The most common and typical MR findings of OVCM was circumscribed thick hypointense rim on T2-weighted images (T2-Wls) representing hemosiderin deposit with various central intensities suggesting the presence of hematomas in different stages (11 lesions). Among these. the recurrent hemorrhage in small amount produced the characteristic 'a bunch of grape' appearance. But, small OCVM less than 1 cm in diameter was identified as a small homogeneous hypointense nodule on T2-Wls with sharp (6 lesions) or fade-out (1 lesions) border. There were 2 lesions showing atypical findings such as dense hemosiderin rin with central lacuma or bilobed subacute hematoma. As the associated MR findings which strongly suggest the diagnosis of OCVM signal void due to feeding or draining vessels was found in 4, lesions and the surrounding focal cortical atrophy or leukomalacia in 2 lesions. The predilection site of OCVM was subcortical (8 lesions) and periventricular (6 cases) location. CT depicted 16 of the 20 lesions, but missed 4 lesions of small OCVM. CT alone did not permit definitive diagnosis of OCVM is most cases. Fifteen lesions demonstrated on CT contained somewhat hyperdense area in central or peripheral locations. Peripheral hyperdense area corresponded to the dense hemosiderin deposit on MR and central one to the hematoma formed by recent hemorrhage. Low density area on CT usually corresponded to liquefied subacute hematoma on MR

  11. Detection of vascular cell adhesion molecule-1 expression with USPIO-enhanced molecular MRI in a mouse model of cerebral ischemia

    International Nuclear Information System (INIS)

    Frechou, M.; Beray-Berthat, V.; Plotkine, M.; Marchand-Leroux, C.; Margaill, I.; Raynaud, J.S.; Gombert, F.; Lancelot, E.; Ballet, S.; Robert, P.; Louin, G.; Meriaux, S.

    2013-01-01

    Vascular damage plays a critical role after stroke, leading notably to edema, hemorrhages and stroke recurrence. Tools to characterize the vascular lesion are thus a real medical need. In this context, the specific nano-particular contrast agent P03011, an USPIO (ultra-small superparamagnetic iron oxide) conjugated to a peptide that targets VCAM-1 (vascular cell adhesion molecule-1), was developed to detect this major component of the vascular inflammatory response. This study aimed to make the proof of concept of the capacity of this targeted USPIO to detect VCAM-1 with MRI after cerebral ischemia in mouse. The time course of VCAM-1 expression was first examined by immunohistochemistry in our model of cerebral ischemia-reperfusion. Secondly, P03011 or non-targeted USPIO P03007 were injected 5 h after ischemia (100 mmol iron kg -1 ; i.v.) and in vivo and ex vivo MRI were performed 24 h after ischemia onset. Double labeling immunofluorescence was then performed on brain slices in order to detect both USPIO and VCAM-1. VCAM-1 expression was significantly up-regulated 24 h after ischemia in our model. In animals receiving P03011, both in vivo and ex vivo MRI performed 24 h after ischemia onset showed hypointense foci which could correspond to iron particles. Histological analysis showed a co-localization of the targeted USPIO and VCAM-1. This study demonstrates that VCAM-1 detection is possible with the USPIO P03011 in a model of cerebral ischemia. This kind of contrast agent could be an interesting clinical tool to characterize ischemic lesions in terms of vascular damage. (authors)

  12. Effects of acetazolamide on the micro- and macro-vascular cerebral hemodynamics: A diffuse optical and transcranial doppler ultrasound study

    OpenAIRE

    Zirak P.; Delgado-Mederos R.; Marti-Fabregas J.; Durduran T.

    2010-01-01

    Acetazolamide (ACZ) was used to stimulate the cerebral vasculature on ten healthy volunteers to assess the cerebral vasomotor reactivity (CVR). We have combined near infrared spectroscopy (NIRS), diffuse correlation spectroscopy (DCS) and transcranial Doppler (TCD) technologies to non-invasively assess CVR in real-time by measuring oxy- and deoxy-hemoglobin concentrations, using NIRS, local cerebral blood flow (CBF), using DCS, and blood flow velocity (CBFV) in the middle cerebral artery, usi...

  13. Diagonal Earlobe Crease (Frank's Sign): A Predictor of Cerebral Vascular Events.

    Science.gov (United States)

    Nazzal, Saleh; Hijazi, Basem; Khalila, Luai; Blum, Arnon

    2017-11-01

    Frank's sign was first described in 1973 by an American physician (Sonders T. Frank). It is a diagonal crease in the earlobe that starts from the tragus to the edge of the auricle in an angle of 45° in varying depths. Frank's sign was described as a predictor of future coronary heart disease and peripheral vascular diseases. The aim of the study was to examine the association between Frank's sign and the development of ischemic stroke. This was a prospective study that enrolled consecutive patients admitted with an acute ischemic stroke. Frank's sign was tested in both ears. Clinical data included age, gender, type 2 diabetes mellitus, and hypertension. The study was approved by the institutional review board (the institutional ethics committee). A total of 241 consecutive patients who were hospitalized with an acute stroke and were eligible to take part in the study were recruited. Frank's sign was present in 190 patients (78.8%). Patients were divided according to clinical findings and the findings from brain computed tomography. There were 153 patients with transient ischemic attacks (63.6% of the patients) and 88 with cerebrovascular accidents (36.4% of the patients). A total of 112 patients with transient ischemic attacks had Frank's sign (73.2%), and 78 patients with cerebrovascular accidents had Frank's sign (88.6%), with a statistically significant difference (P <.01). Frank's sign could predict ischemic cerebrovascular events. Patients with classical cardiovascular risk factors had Frank's sign at a higher frequency. Copyright © 2017 Elsevier Inc. All rights reserved.

  14. Enfermedades de la pobreza, enfermedades tropicales desatendidas

    OpenAIRE

    Pecoul, Bernard; Alvarado, J.

    2014-01-01

    Las enfermedades tropicales desatendidas (ETDs) se caracterizan por su altísima incidencia en países de renta baja haciendo bueno el nefasto ciclo pobreza-enfermedad-pobreza. Las ETDs son ajenas al mundo occidental por lo que no son consideradas prioritarias, pero tampoco lo son para los gobiernos de los países endémicos al afectar a las poblaciones rurales sin voz política. Los escasos beneficios que proporcionan los medicamentos para estas enfermedades las hacen poco atractivas para la inve...

  15. Study of cerebral vascular diseases with radioisotopes in cerebral atherosclerotical subjects and/for subjects with sequelae of cerebral stroke, before and after use of the association piracetam-dihydroergotoxine

    International Nuclear Information System (INIS)

    Lara, P.F.; Ferreira, A.; Paulillo, L.F.; Cukierman, M.

    1985-01-01

    Twently subjects with cerebral sclerosis and/or sequelas of cerebral stroke were studied, before and after use of piracetam-dihydroergotoxine. We performed the complete hemispheric cerebral blood flow and cerebral scintigraphy, beyond clinical and neurological examination. Scintigraphies were unchanged. Cerebral circulation times, or both hemispheres, diminished. This occurred, probably, in relation with metabolic effects of both pharmaceutical drugs. The alpha sympatolytic and modulatory effects of dihydroergotoxine should be considered. (author) [pt

  16. Monitoring of cerebral haemodynamics in newborn infants

    DEFF Research Database (Denmark)

    Liem, K Djien; Greisen, Gorm

    2010-01-01

    The most important cerebrovascular injuries in newborn infants, particularly in preterm infants, are cerebral haemorrhage and ischemic injury. The typical cerebral vascular anatomy and the disturbance of cerebral haemodynamics play important roles in the pathophysiology. The term 'cerebral haemod...

  17. Single Sustained Inflation followed by Ventilation Leads to Rapid Cardiorespiratory Recovery but Causes Cerebral Vascular Leakage in Asphyxiated Near-Term Lambs.

    Directory of Open Access Journals (Sweden)

    Kristina S Sobotka

    Full Text Available A sustained inflation (SI rapidly restores cardiac function in asphyxic, bradycardic newborns but its effects on cerebral haemodynamics and brain injury are unknown. We determined the effect of different SI strategies on carotid blood flow (CaBF and cerebral vascular integrity in asphyxiated near-term lambs.Lambs were instrumented and delivered at 139 ± 2 d gestation and asphyxia was induced by delaying ventilation onset. Lambs were randomised to receive 5 consecutive 3 s SI (multiple SI; n = 6, a single 30 s SI (single SI; n = 6 or conventional ventilation (no SI; n = 6. Ventilation continued for 30 min in all lambs while CaBF and respiratory function parameters were recorded. Brains were assessed for gross histopathology and vascular leakage.CaBF increased more rapidly and to a greater extent during a single SI (p = 0.01, which then decreased below both other groups by 10 min, due to a higher cerebral oxygen delivery (p = 0.01. Blood brain barrier disruption was increased in single SI lambs as indicated by increased numbers of blood vessel profiles with plasma protein extravasation (p = 0.001 in the cerebral cortex. There were no differences in CaBF or cerebral oxygen delivery between the multiple SI and no SI lambs.Ventilation with an initial single 30 s SI improves circulatory recovery, but is associated with greater disruption of blood brain barrier function, which may exacerbate brain injury suffered by asphyxiated newborns. This injury may occur as a direct result of the initial SI or to the higher tidal volumes delivered during subsequent ventilation.

  18. The contribution of CXCL12-expressing radial glia cells to neuro-vascular patterning during human cerebral cortex development

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    Mariella eErrede

    2014-10-01

    Full Text Available This study was conducted on human developing brain by laser confocal and transmission electron microscopy to make a detailed analysis of important features of blood-brain barrier microvessels and possible control mechanisms of vessel growth and differentiation during cerebral cortex vascularization. The blood-brain barrier status of cortex microvessels was examined at a defined stage of cortex development, at the end of neuroblast waves of migration and before cortex lamination, with blood-brain barrier-endothelial cell markers, namely tight junction proteins (occludin and claudin-5 and influx and efflux transporters (Glut-1 and P-glycoprotein, the latter supporting evidence for functional effectiveness of the fetal blood-brain barrier. According to the well-known roles of astroglia cells on microvessel growth and differentiation, the early composition of astroglia/endothelial cell relationships was analysed by detecting the appropriate astroglia, endothelial, and pericyte markers. GFAP, chemokine CXCL12, and connexin 43 (Cx43 were utilized as markers of radial glia cells, CD105 (endoglin as a marker of angiogenically activated endothelial cells, and proteoglycan NG2 as a marker of immature pericytes. Immunolabeling for CXCL12 showed the highest level of the ligand in radial glial fibres in contact with the growing cortex microvessels. These specialized contacts, recognizable on both perforating radial vessels and growing collaterals, appeared as CXCL12-reactive en passant, symmetrical and asymmetrical vessel-specific RG fibre swellings. At the highest confocal resolution, these RG varicosities showed a CXCL12-reactive dot-like content whose microvesicular nature was confirmed by ultrastructural observations. A further analysis of radial glial varicosities reveals colocalization of CXCL12 with connexin Cx43, which is possibly implicated in vessel-specific chemokine signalling.

  19. Neurofibromatosis, stroke and basilar impression: case report Neurofibromatose, acidente vascular cerebral e impressão basilar: relato de caso

    Directory of Open Access Journals (Sweden)

    ELCIO JULIATO PIOVESAN

    1999-06-01

    Full Text Available Neurofibromatosis type 1 (NF1 can virtually affect any organ, presenting most frequently with "cafe au lait" spots and neurofibromas. Vasculopathy is a known complication of NF1, but cerebrovascular disease is rare. We report the case of a 51-year-old man admitted to the hospital with a history of stroke four months before admission. On physical examination, he presented various "cafe au lait" spots and cutaneous neurofibromas. Neurologic examination demonstrated right-sided facial paralysis, right-sided hemiplegia, and aphasia. Computed tomography scan of head showed hypodense areas in the basal ganglia and centrum semiovale. Radiographs of cranium and cervical spine showed basilar impression. Angiography revealed complete occlusion of both vertebral and left internal carotid arteries, and partial stenosis of the right internal carotid artery. A large network of collateral vessels was present (moyamoya syndrome. It is an uncommon case of occlusive cerebrovascular disease associated with NF1, since most cases described in the literature are in young people, and tend to spare the posterior cerebral circulation. Basilar impression associated with this case may be considered a pure coincidence, but rare cases of basilar impression and NF1 have been described.A neurofibromatose tipo 1 (NF1 pode acometer qualquer órgão mas as apresentações mais frequente são manchas café com leite e neurofibromas. O envolvimento de vasos é complicação conhecida da NF1, mas a doença cerebrovascular é rara. Relatamos o caso de paciente do sexo masculino de 51 anos com história de acidente vascular cerebral há quatro meses da admissão. Ao exame físico apresentava várias manchas café com leite e neurofibromas cutâneos. O exame neurológico demonstrou acometimento facial direito, hemiplegia direita e afasia. Tomografia computadorizada de crânio mostrou áreas hipodensas nos gânglios basais e centros semi-ovais. Radiografias do crânio e coluna cervical

  20. Clinical implication and prognosis of normal baseline cerebral blood flow with impaired vascular reserve in patients with major cerebral artery occlusive disease

    International Nuclear Information System (INIS)

    Isozaki, Makoto; Arai, Yoshikazu; Kubota, Toshihiko; Kikuta, Ken-ichiro; Kudo, Takashi; Kiyono, Yasushi; Kobayashi, Masato; Okazawa, Hidehiko

    2010-01-01

    To investigate the prognosis of patients with cerebrovascular steno-occlusive disease who have preserved baseline cerebral blood flow (CBF) and reduced cerebral vasoreactivity (CVR), they were followed up after scans of positron emission tomography (PET). Fifty-seven patients with symptomatic unilateral major cerebral arterial occlusion or severe stenosis underwent O-15 gas and water PET scans to measure cerebral blood volume, metabolic rate of oxygen, oxygen extraction fraction (OEF), and CBF at the baseline and after acetazolamide administration. Thirty of them (mean age 60±10 years) had normal ipsilateral CBF, and were followed prospectively at least 30 months from the last ischemic event. They were medically treated for cerebral circulation and underlying diseases during follow-up periods. The primary endpoint was determined as stroke recurrence during the follow-up. Thirty patients were divided into two groups of reduced CVR (N=16, 63±8 years) and normal CVR (N=14, 56±10 years) on the basis of CVR values from healthy volunteers. None of them showed significant laterality in baseline CBF and OEF between the hemispheres although patients with reduced CVR showed a tendency of ipsilateral increases in OEF and CBV. Patients were followed up for 50.5±19.0 and 48.1±12.4 months in the reduced and normal CVR groups, respectively. Although one patient with reduced CVR died of heart disease, there was no incidence of ischemic events during follow-up periods for either group. In the present prospective study, patients with sufficient baseline CBF showed good prognosis and no difference in recurrent stroke risks even though they had poor CVR in the affected hemisphere, indicating that these patients can be treated by medication for cerebral circulation and baseline diseases if they have high risk factors for neurosurgical treatment. (author)

  1. O espessamento da íntima-média associa-se independentemente ao Acidente Vascular Cerebral Isquêmico

    Directory of Open Access Journals (Sweden)

    Dário Freitas

    2012-06-01

    Full Text Available FUNDAMENTO: O Acidente Vascular Cerebral (AVC constitui uma das primeiras causas de morte a nível mundial. A importância do espessamento da íntima-média na estratificação de risco cardiovascular tem sido recorrentemente estudada; contudo, essa relação gera ainda alguma controvérsia. OBJETIVOS: Determinar se o espessamento da íntima-média na Artéria Carótida Comum (ACC pode ser utilizado como um marcador independente de alto risco para a ocorrência do AVC. MÉTODOS: A amostra compreende um grupo de 948 doentes consecutivamente estudados por Triplex Scan Cervical no período compreendido entre janeiro de 2004 e junho de 2009. Esses doentes foram agrupados em razão da presença ou ausência de AVC recente, do que resultou um grupo de doentes com AVC Isquémico (AVC I (n = 452, 48%, outro com AVC Hemorrágico (AVC H (n = 22, 2% e um grupo de doentes Sem Eventos (n = 474, 50%. RESULTADOS: Na análise de regressão logística ajustada para fatores de risco cardiovascular clássicos, o espessamento da íntima-média na ACC associou-se significativamente e de forma aproximadamente linear com o AVC I (Odds Ratio = 1.808, Intervalo de Confiança: 1.291-2.534, p = 0,01, mas não com o AVC H (p = ns. Uma interação significativa com a idade foi também encontrada, demonstrando-se uma capacidade discriminativa do risco de AVC I maior em indivíduos com idade inferior a 50 anos. CONCLUSÕES: O espessamento da íntima-média na ACC revelou-se um preditor de risco independente para o AVC I, mas não para AVC H reforçando assim a utilidade da sua avaliação na prática clínica. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0

  2. Characteristic pattern of cerebral perfusion in patients with the early stage of subcortical vascular dementia compared with Alzheimer's disease

    International Nuclear Information System (INIS)

    Jeong, Young Jin; Kang, Do Young; Park, Kyung Won; Cheon, Sang Myung; Kim, Jong Kuk; Kim, Jae Woo

    2004-01-01

    Brain perfusion SPECT has been commonly used to evaluate several different types of dementia. The aim of this study is to assess the specific patterns of regional cerebral blood flow (rCBF) in patients with the early stage of subcortical vascular dementia (SVD) and Alzheimer's disease (AD) using Tc-99m HMPAO SPECT, and to compare the differences between the two conditions. Sixteen SVD (mean age; 68.0±7.0 years, educational period; 6.3±5.6 years, CDR; 0.80±0.26). 46 AD (mean age; 69.9±7.4 years, educational period; 5.4±4.7 years, CDR; 0.86±0.23) and 12 normal control subjects (mean age; 67.1±7.7 years, educational period; 6.2±4.2 years) participated in this study. We included the patients with SVD and AD according to NINCDS-ADRDA criteria for probable AD and NINDS-AIREN criteria for probable or possible VD. They were all matched for age, education and clinical dementia scale scores. SPM analysis of the SPECT image showed significant perfusion deficits on the right temporal region and right thalamus, left insula and superior temporal gyrus, both cingulate gyri and frontal subgyral regions in patients with SVD and on the left supramarginal gyrus, superior temporal gyrus, postcentral gyrus and inferior parietal lobule, right fugiform gyrus and both cingulate gyri in patients with AD compared with control subjects (uncorrected p<0.01). SVD patients revealed significant hypoperfusion in the right parahippocampal gyrus, right cingulated gyrus, left insula, and both frontal subgyral regions compared with AD patients (uncorrected p<0.01). SVD patients revealed significant hyperperfusion in right superior frontal gyrus, left pre- and postcentral gyri, left paracentral lobule, left precuneus and both medial frontal gyri compared with AD patients (uncorrected p<0.01). Our study shows characteristic and different pattern of perfusion deficits in patients with SVD and AD, and these results may be helpful to discriminate the two conditions in the early stage of illness

  3. Modeling Cerebral Vascular Injury

    Science.gov (United States)

    2016-01-01

    epidural hematoma , 16% had a subdural hematoma , 11% had an intraventricular hemorrhage, and 14% had mixed hemorrhages (Armonda et al. 2006). In order... hematoma , 16% had a subdural hematoma , 11% had an intraventricular hemorrhage, and 14% had mixed hemorrhages (Armonda et al. 2006). Injuries such as...vasospasm and pseudoaneurysm can lead to further damage to the brain over time. Intracranial hemorrhages and hematomas can be life threatening and

  4. The Serial Change of Cerebral Hemodynamics by Vascular Territory after Extracranial-Intracranial Bypass Surgery in Patients with Atherosclerosis of Cerebral Arteries

    International Nuclear Information System (INIS)

    Hong, Il Ki; Kim, Jae Seung; Ahn, Jae Sung; Kwon, Sun Uck; Im, Ki Chun; Lee, Jai Hyuen; Moon, Dae Hyuk

    2008-01-01

    To assess the effect of extracranial-intracranial (EC-IC) bypass surgery on hemodynamic improvement, we evaluated serial regional cerebral hemodynamic change of the middle cerebral artery (MCA) in symptomatic patients with atherosclerotic occlusion of the internal carotid artery (ICA) or MCA using 99m Tc-ECD acetazolamide stress brain perfusion SPECT (Acetazolamide SPECT). The patients who had suffered a recent stroke with atherosclerotic ICA or MCA occlusion underwent EC-IC bypass surgery and Acetazolamide SPECT at 1 week before and three to six months after surgery. For image analysis, attenuation corrected images were spatially normalized to SPECT templates with SPM2. Anatomical automated labeling was applied to calculate mean counts of each Volume-Of-Interest (VOI). Seven VOIs of bilateral frontal, parietal, temporal regions of the MCA territory and the ipsilateral cerebellum were defined. Using mean counts of 7 VOIs, cerebral perfusion index and perfusion reserve index were calculated. Seventeen patients (M:F=12:5, mean age: 53±2yr) were finally included in the analysis. The cerebral blood flow of the parietal region increased at 1 week (p=0.003) and decreased to the preoperative level at 3-6 months (p=0.003). The cerebrovascular reserve of the frontal and parietal regions increased significantly at 1 week after surgery (p<0.01) and improved further at 3-6 months. Cerebrovascular reserve of the MCA territory was significantly improved at early postoperative period after EC-IC bypass and kept improved state during long-term follow-up, although cerebral blood flow did not significantly improved. Therefore, cerebrovascular reserve may be a good indicator of postoperative hemodynamic improvement resulted from bypass effect

  5. The Serial Change of Cerebral Hemodynamics by Vascular Territory after Extracranial-Intracranial Bypass Surgery in Patients with Atherosclerosis of Cerebral Arteries

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Il Ki; Kim, Jae Seung; Ahn, Jae Sung; Kwon, Sun Uck; Im, Ki Chun; Lee, Jai Hyuen; Moon, Dae Hyuk [Asan Medial Center, Ulsan University School of Medicine, Seoul (Korea, Republic of)

    2008-02-15

    To assess the effect of extracranial-intracranial (EC-IC) bypass surgery on hemodynamic improvement, we evaluated serial regional cerebral hemodynamic change of the middle cerebral artery (MCA) in symptomatic patients with atherosclerotic occlusion of the internal carotid artery (ICA) or MCA using {sup 99m}Tc-ECD acetazolamide stress brain perfusion SPECT (Acetazolamide SPECT). The patients who had suffered a recent stroke with atherosclerotic ICA or MCA occlusion underwent EC-IC bypass surgery and Acetazolamide SPECT at 1 week before and three to six months after surgery. For image analysis, attenuation corrected images were spatially normalized to SPECT templates with SPM2. Anatomical automated labeling was applied to calculate mean counts of each Volume-Of-Interest (VOI). Seven VOIs of bilateral frontal, parietal, temporal regions of the MCA territory and the ipsilateral cerebellum were defined. Using mean counts of 7 VOIs, cerebral perfusion index and perfusion reserve index were calculated. Seventeen patients (M:F=12:5, mean age: 53{+-}2yr) were finally included in the analysis. The cerebral blood flow of the parietal region increased at 1 week (p=0.003) and decreased to the preoperative level at 3-6 months (p=0.003). The cerebrovascular reserve of the frontal and parietal regions increased significantly at 1 week after surgery (p<0.01) and improved further at 3-6 months. Cerebrovascular reserve of the MCA territory was significantly improved at early postoperative period after EC-IC bypass and kept improved state during long-term follow-up, although cerebral blood flow did not significantly improved. Therefore, cerebrovascular reserve may be a good indicator of postoperative hemodynamic improvement resulted from bypass effect.

  6. The somatotopic localisation of the descending cortical tract in the cerebral peduncle: a study using MRI of changes following Wallerian degeneration in the cerebral peduncle after a supratentorial vascular lesion

    International Nuclear Information System (INIS)

    Waragai, M.; Watanabe, H.; Iwabuchi, S.

    1994-01-01

    We studied the effects of Wallerian degeneration in the cerebral peduncle shown by magnetic resonance imaging (MRI) following a supratentorial vascular lesion, to identify the somatotopic localisation of the descending cortical tracts. Patients with a lesion involving a large area of a cerebral hemisphere has an area of abnormal signal intensity in the whole cerebral peduncle, suggesting Wallerian degeneration of all the whole descending cortical tracts. With a small lesion confined to the precentral gyrus, corona radiata, or posterior limb of the internal capsule there was an abnormal signal at the centre of the peduncle, suggesting degeneration of the precentrospinal tract. Those with a small lesion confined to the paracentral gyrus had an abnormal area slightly lateral to the centre of the peduncle, suggesting degeneration of the parietospinal tract. Patients with a lesion of the parietal or temporal lobes, not including the paracentral or precentral gyri, corona radiata, or the posterior limb of the internal capsule, had an abnormal area laterally in the peduncle, suggesting degeneration of the parietopontine or temporopontine tract. (orig.)

  7. A problemática do cuidador familiar do portador de acidente vascular cerebral La problemática del cuidador familiar con el portador de accidente cerebral vascular The problematic aspects of the family caregiver of people who suffered strokes

    Directory of Open Access Journals (Sweden)

    Luciene Miranda de Andrade

    2009-03-01

    Full Text Available Objetivou-se identificar a problemática da família de pessoas acometidas de acidente vascular cerebral hospitalizadas e discutir as dificuldades do cuidador familiar para o cuidado no âmbito domiciliar. A amostra constou de 154 famílias de pacientes internados em um hospital da rede pública de saúde, Fortaleza-CE. Conforme os resultados denotam, a maioria dos cuidadores são mulheres, 104 (67,5%; 122 casos (79,2% apresentam comprometimento familiar e alterações na vida diária em 115 dos acompanhantes (74,7%; 150 (97,4% não receberam orientações acerca dos cuidados, mas 143 (92,9% sentem-se seguros para acompanhá-los. O sentimento predominante foi a tristeza, 125 (81,2%, e as dúvidas principais foram: alimentação, 64 (41,6%, administração de medicamentos, 49 (29,9%, e possíveis complicações clínicas após a alta, 49 (29,9%. Estes resultados alertam para o papel do enfermeiro como educador, não somente na prevenção das doenças crônico-degenerativas, mas, também, na orientação aos cuidadores familiares sobre os cuidados dispensados após a alta hospitalar.El objetivo fue identificar la problemática de la familia de personas acometidas de accidente vascular cerebral hospitalizadas y discutir las dificultades del cuidador familiar en el ámbito domiciliar. La muestra fue constituida por 154 familias de pacientes internados en un hospital de la red pública de salud, en Fortaleza, CE. Conforme los resultados denotan, la mayoría de los cuidadores son mujeres, 104 (67,5%, 122 casos (79,2% presentan comprometimiento familiar y alteraciones en la vida diaria en 115 de los acompañantes (74,7%; 150 (97,4% no recibieron orientaciones acerca de los cuidados; sin embargo 143 (92,9% se sienten seguros para acompañarlos. El sentimiento predominante fue la tristeza, 125 (81,2%, y las dudas principales fueron: alimentación, 64 (41,6%, administración de medicamentos, 49 (29,9%, y posibles complicaciones clínicas después del

  8. TUBERCULOSIS COMO ENFERMEDAD OCUPACIONAL

    Science.gov (United States)

    Mendoza-Ticona, Alberto

    2014-01-01

    Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Perú están normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos aún no han sido suficientemente socializados. En este trabajo se presenta información sobre el riesgo de adquirir tuberculosis en el lugar de trabajo, se revisan las evidencias para declarar a la tuberculosis como enfermedad ocupacional en trabajadores de salud y se presenta la legislación peruana vigente al respecto. PMID:22858771

  9. Clinical value of detection on ser um monocyte chemotactant protein-1 and vascular endothelial cadher in levels in patients with acute cerebral infarction

    Directory of Open Access Journals (Sweden)

    Xia Zhou

    2016-11-01

    Full Text Available Objective: To study the correlation of serum monocyte chemotactant protein-1 (MCP-1 and vascular endothelia cadherin (VE-cadherin levels in patients with acute cerebral infarction, and nerve injury molecules, interleukins and matrix metalloproteinases. Methods: A total of 86 patients with acute cerebral infarction treated in our hospital from April 2012 to October 2015 were selected as the observation group and 50 healthy subjects in the same period treated in our hospital were selected as the control group. The serums were collected and the contents of MCP-1, VE-cadherin, heart-type fatty acid binding protein (H-FABP, S100 calcium binding protein B (S100B, neuron-specific enolase (NSE, interleukin-lb (IL-1b, IL-6, IL-17, IL-18, matrix metalloproteinase-2 (MMP2, MMP3 and MMP9 were measured. Results: The serum contents of MCP-1, VE-cadherin, H-FABP, S100B, NSE, IL-1b, IL- 6, IL-17, IL-18, MMP2, MMP3 and MMP9 in observation group were significantly higher than those of control group. Carotid artery plaque formation and unstable plaque properties will increase the serum contents of MCP-1, VE-cadherin, H-FABP, S100B, NSE, IL-1b, IL-6, IL-17, IL-18, MMP2, MMP3 and MMP9 in patients with cerebral infarction. The serum levels of MCP-1, VE-cadherin and the contents of H-FABP, S100B, NSE, IL-1b, IL-6, IL-17, IL-18, MMP2, MMP3 and MMP9 were positively correlated. Conclusions: The serum levels of VE-cadherin and MCP-1 were significantly increased in patients with acute cerebral infarction. MCP-1 and VE-cadherin can increase the secretion of interleukins and matrix metalloproteinases, which can result in the carotid artery plaque formation, unstable plaque properties and the injury of nerve function.

  10. Characteristics of Cerebral Blood Flow in Vascular Dementia using SPM Analysis Compared to Normal Control and Alzheimer's Dementia

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Do Young; Park, Kyung Won; Kim, Jae Woo [College of Medicine, Univ. of Donga, Busan (Korea, Republic of)

    2003-07-01

    Cerebral perfusion pattern of vascular dementia (VD) was not well established and overlap of cerebral perfusion pattern was reported between VD and Alzheimer's dementia (AD). The aim of this study is to assess the specific patterns of SPECT finding in VD compared with normal control subjects and to disclose differences of cerebral blood flow between subjects with VD and AD were investigated using statistic parametric mapping analysis. Thirty-two VD (mean age ; 67.86.4 years, mean CDR ; 0.980.27), 51 AD (mean age ; 71.47.2 years, CDR ; 1.160.47), which were matched for age and severity of dementia, and 30 normal control subjects (mean age ; 60.17.7 years) participated in this study. The Tc-99m HMPAO brain perfusion SPECT data were analyzed by SPM99. The SPECT data of the patients with VD were compared to those of the control subjects and then compared to the patients with AD. SPM analysis of the SPECT image showed significant perfusion deficits in the both frontal (both cingulate gyrus, both inferior frontal gyrus, B no.47, right frontal rectal gyrus, left frontal subcallosal gyrus, B no.25), both temporal (right insula, B no.13, left superior temporal gyrus, left parahippocampal gyrus, B no.35), occipital (occipital lingual gyrus), right corpus callosum and right cerebellar tonsil regions in subjects with VD compared with normal control subjects (uncorrected p<0.01). Comparison of the two dementia groups (uncorrected p<0.01) revealed significant hypoperfusion in both parietal posterior central gyrus, right inferior frontal gyrus (B no.47), left insula, right thalamus (ventral lateral nucleus), right claustrum and right occipital cuneus regions in VD group compared with AD. There were no typical confined regional hypoperfusion areas but scattered multiple perfusion deficits in VD compared AD. These findings may be helpful to reflect the pathophysiological mechanisms of VD and to disclose differences of cerebral blood flow between subjects with VD and AD.

  11. Dynamic digitized cerebral parenchymography

    International Nuclear Information System (INIS)

    Theron, J.; Alachkar, F.; Nelson, M.; Mazia, D.

    1992-01-01

    Aortic arch injections centred on the head have been performed routinely in patients with cerebral ischaemia. Digital angiograms with modified windowing (low and narrow) have been used. This 'cerebral' arch injection allows much improved analysis of the cerebral parenchymal vascularization, giving better understanding of hemispheric ischaemia and making the decision about revascularization more rational. (orig.)

  12. Acidente vascular cerebral e outras complicações do sistema nervoso central nas doenças falciformes Stroke and other vascular complications of the central nervous system in sickle cell disease

    Directory of Open Access Journals (Sweden)

    Ivan L. Angulo

    2007-09-01

    Full Text Available A principal complicação da doença falciforme na infância é a das artérias cerebrais, mas após os 20 anos também pode se manifestar, como seqüela de lesões anteriores ou neoformadas. A vasculopatia tem a maior importância no desenvolvimento da criança e na qualidade de vida. Além do acidente vascular cerebral completo ou incompleto ("silencioso", existem outras complicações do sistema nervoso central, porém não exclusivas. O diagnóstico da vasculopatia cerebral falciforme necessita auxílio neurorradiológico. O tratamento se faz basicamente com transfusões de eritrócitos contendo hemoglobina A. O objetivo deste trabalho é rever a literatura médica, procurando selecionar a melhor conduta em diagnóstico e tratamento que seja possível empregar de imediato, para reduzir a morbidade e mortalidade da vasculopatia cerebral e elevar a qualidade de vida dos pacientes, principalmente na infância. Os fatores de risco clínicos e laboratoriais, incluindo a triagem por ultra-sonografia Doppler das artérias cerebrais e imagens de ressonância magnética, devem influenciar a decisão de instituir transfusões crônicas e a quelação do ferro transfusional deve acompanhar este tratamento.In children with sickle cell disease, cerebral arteries are prone to lesions that may cause deficiencies and poor quality of life. After the age of 20, new lesions may also occur. Besides stroke and silent cerebral ischemia, other lesions may occur. Radiologic images are necessary to diagnose and blood transfusions to treat. We reviewed the literature to choose best practices and guidelines to reduce morbidity and mortality and improve the quality of life of children with sickle cell disease. Risk factors identified from clinical and laboratory data and screening by Doppler ultrasonography and magnetic resonance must be used in order to make decisions about transfusion and iron chelation therapy.

  13. Cerebral metabolism and vascular reactivity during breath-hold and hypoxic challenge in freedivers and healthy controls

    DEFF Research Database (Denmark)

    Vestergaard, Mark B.; Larsson, Henrik B.W.

    2017-01-01

    blood flow (CBF) and metabolic rate of oxygen (CMRO2), and magnetic resonance spectroscopy was used to measure the cerebral lactate, glutamate+glutamine, N-acetylaspartate and phosphocreatine+creatine concentrations in the occipital lobe. Fifteen freedivers and seventeen non-diver controls participated...

  14. Immediate CT findings following embolization of cerebral aneurysms: suggestion of blood-brain barrier or vascular permeability change

    International Nuclear Information System (INIS)

    Baik, Seung Kug; Kim, Yong Sun; Lee, Hui Jung; Kim, Gab Chul; Park, Jaechan

    2008-01-01

    Although endovascular techniques are widely used for the treatment of cerebral aneurysms, the immediate postprocedural brain CT findings have not been reported. Therefore, in the present study we assessed the immediate postprocedural brain CT findings following the uneventful coil embolization of cerebral aneurysms. Included in the study were 59 patients with 61 cerebral aneurysms after uncomplicated coil embolization. Acute subarachnoid hemorrhage was present with 32 of the 61 aneurysms. All patients underwent a brain CT scan just before and within 2 h after the endovascular treatment. If the postprocedural CT scan revealed any new findings, a follow-up CT scan and/or MRI were performed within 24 h. The variables related to the abnormal CT findings were also evaluated. Among the 61 immediate brain CT scans, 26 (43%) showed abnormal findings, including cortical contrast enhancement (n=21, 34%), subarachnoid contrast enhancement (n=8, 13%), intraventricular contrast enhancement (n=5, 8%), and striatal contrast enhancement (n=2, 3%). Single or mixed CT findings were also seen. None of the 61 aneurysms was associated with new neurological symptoms after endovascular treatment, and all patients made an uneventful recovery. Abnormal findings were more likely to be found with lower body weight and with increased corrected amounts of contrast material and heparin (P<0.05). After uneventful endovascular treatment of cerebral aneurysms, the immediate brain CT findings can reveal various patterns of abnormal contrast enhancement. Recognizing the immediate brain CT findings is important, as they can mimic various diseases. (orig.)

  15. Prevalência de disfagia orofaríngea no acidente vascular cerebral após cirurgia cardíaca

    OpenAIRE

    Tatiana Magalhães de Almeida; Paula Cristina Cola; Daniel Magnoni; João Ítalo Dias França; Roberta Gonçalves da Silva

    2015-01-01

    Resumo: OBJETIVO: determinar a prevalência de disfagia orofaríngea em indivíduos submetidos à cirurgia cardíaca e que evoluíram com Acidente Vascular Cerebral em Hospital Público de Referência. MÉTODOS: estudo clínico descritivo, retrospectivo, realizado por meio da coleta de dados de protocolos de avaliação clínica da deglutição orofaríngea, no período de novembro de 2010 á novembro de 2011. Foram incluídos os 25 protocolos de avaliação clínica para disfagia orofaríngea de indivíduos que f...

  16. Predictors of short-term outcome in patients with acute middle cerebral artery occlusion: unsuitability of fluid-attenuated inversion recovery vascular hyperintensity scores

    Directory of Open Access Journals (Sweden)

    Chan-chan Li

    2018-01-01

    Full Text Available Fluid-attenuated inversion recovery (FLAIR vascular hyperintensity (FVH is used to assess leptomeningeal collateral circulation, but clinical outcomes of patients with FVH can be very different. The aim of the present study was to assess a FVH score and explore its relationship with clinical outcomes. Patients with acute ischemic stroke due to middle cerebral artery M1 occlusion underwent magnetic resonance imaging and were followed up at 10 days (National Institutes of Health Stroke Scale and 90 days (modified Rankin Scale to determine short-term clinical outcomes. Effective collateral circulation indirectly improved recovery of neurological function and short-term clinical outcome by extending the size of the pial penumbra and reducing infarct lesions. FVH score showed no correlation with 90-day functional clinical outcome and was not sufficient as an independent predictor of short-term clinical outcome.

  17. Segmentação das áreas isquêmicas no acidente vascular cerebral utilizando imagens de tomografia computadorizada de perfusão

    OpenAIRE

    Lilian Contin

    2011-01-01

    As técnicas de processamento digital de imagens têm sido vastamente aplicadas às imagens médicas. Um dos benefícios ocasionado por estas ferramentas é o de prover medidas de parâmetros que são difíceis de estimar e suscetíveis a viés do médico. O presente trabalho teve por objetivo desenvolver um software semi-automático de segmentação das áreas isquêmicas, core e penumbra, no acidente vascular cerebral, utilizando técnicas de segmentação por limiarização e baseada em regiões. Os dois algorit...

  18. Statin therapy exacerbates alcohol-induced constriction of cerebral arteries via modulation of ethanol-induced BK channel inhibition in vascular smooth muscle.

    Science.gov (United States)

    Simakova, Maria N; Bisen, Shivantika; Dopico, Alex M; Bukiya, Anna N

    2017-12-01

    Statins constitute the most commonly prescribed drugs to decrease cholesterol (CLR). CLR is an important modulator of alcohol-induced cerebral artery constriction (AICAC). Using rats on a high CLR diet (2% CLR) we set to determine whether atorvastatin administration (10mg/kg daily for 18-23weeks) modified AICAC. Middle cerebral arteries were pressurized in vitro at 60mmHg and AICAC was evoked by 50mM ethanol, that is within the range of blood alcohol detected in humans following moderate-to-heavy drinking. AICAC was evident in high CLR+atorvastatin group but not in high CLR diet+placebo. Statin exacerbation of AICAC persisted in de-endothelialized arteries, and was blunted by CLR enrichment in vitro. Fluorescence imaging of filipin-stained arteries showed that atorvastatin decreased vascular smooth muscle (VSM) CLR when compared to placebo, this difference being reduced by CLR enrichment in vitro. Voltage- and calcium-gated potassium channels of large conductance (BK) are known VSM targets of ethanol, with their beta1 subunit being necessary for ethanol-induced channel inhibition and resulting AICAC. Ethanol-induced BK inhibition in excised membrane patches from freshly isolated myocytes was exacerbated in the high CLR diet+atorvastatin group when compared to high CLR diet+placebo. Unexpectedly, atorvastatin decreased the amount and function of BK beta1 subunit as documented by immunofluorescence imaging and functional patch-clamp studies. Atorvastatin exacerbation of ethanol-induced BK inhibition disappeared upon artery CLR enrichment in vitro. Our study demonstrates for the first time statin's ability to exacerbate the vascular effect of a widely consumed drug of abuse, this exacerbation being driven by statin modulation of ethanol-induced BK channel inhibition in the VSM via CLR-mediated mechanism. Copyright © 2017 Elsevier Inc. All rights reserved.

  19. Regional cerebral blood flow levels as measured by xenon-CT in vascular territorial low-density areas after subarachnoid hemorrhage are not always ischemic

    International Nuclear Information System (INIS)

    Fainardi, E.; Tagliaferri, M.F.; Compagnone, C.; Tanfani, A.; Cocciolo, F.; Targa, L.; Chieregato, A.; Battaglia, R.; Frattarelli, M.; Pascarella, R.

    2006-01-01

    The aim of this study was to assess regional cerebral blood flow (rCBV) in areas of CT hypoattenuation appearing in the postoperative period in patients treated for aneurysmal subarachnoid hemorrhage (SAH) using xenon-enhanced CT scanning (Xe-CT). We analyzed 15 patients (5 male and 10 female; mean age 49.7±12.1 years) with SAH on CT performed on admission to hospital and who showed a low-density area within a well-defined vascular territory on CT scans after clipping or coiling of a saccular aneurysm. All zones of hypoattenuation were larger than 1 cm 2 and showed signs of a mass effect suggesting a subacute phase of evolution. Two aneurysms were detected in two patients. Aneurysms were located in the middle cerebral artery (n=7), in the anterior communicating artery (n=6), in the internal carotid artery (n=3), and in the posterior communicating artery (n=1). Treatments were surgical (n=8), endovascular (n=2) or both (n=1). A total of 36 Xe-CT studies were performed and rCBF values were measured in two different regions of interest (ROI): the low-density area, and an area of normal-appearing brain tissue located symmetrically in the contralateral hemisphere. rCBF levels were significantly lower in the low-density area than in the contralateral normal-appearing area (P 55 ml/100 g per minute) in 2/36 lesions (5.6%). Our study confirmed that rCBF is reduced in new low-density lesions related to specific vascular territories. However, only about one-third of the lesions showed rCBF levels consistent with irreversible ischemia and in a relatively high proportion of lesions, rCBF levels indicated penumbral, oligemic and hyperemic areas. (orig.)

  20. Simultaneous Vascular Targeting and Tumor Targeting of Cerebral Breast Cancer Metastases Using a T-Cell Receptor Mimic Antibody

    Science.gov (United States)

    2014-05-01

    in May 2013, the difference between nude mice (which lack T- cells , but still have a partially functional adaptive and innate immune system) and NSG...Mangada J, Greiner DL, Handgretinger R. Human lymphoid and myeloid cell development in NOD/LtSz-scid IL2R gamma null mice engrafted with mobilized human...Targeting of Cerebral Breast Cancer Metastases Using a T- Cell Receptor Mimic Antibody PRINCIPAL INVESTIGATOR: Ulrich Bickel

  1. Proteólisis cerebral del péptido amiloide-ß: Relevancia de la enzima degradadora de insulina en la enfermedad de Alzheimer Cerebral proteolysis of amyloid-ß peptide: Relevance of insulin-degrading enzyme in Alzheimer's disease

    Directory of Open Access Journals (Sweden)

    María Celeste Leal

    2009-10-01

    Full Text Available El aumento global de la expectativa de vida convierte a la enfermedad de Alzheimer (EA en un problema creciente. Una de las características distintivas de EA es la acumulación excesiva del péptido amiloide ß (Aß en el cerebro. En los últimos años se ha fortalecido el concepto de que la degradación de Aß por proteasas in situ es un mecanismo importante que previene su acumulación cerebral. Datos bioquímicos y genéticos mostraron que la enzima degradadora de insulina (IDE participa en la homeostasis de Aß e insulina. La expresión y la actividad de IDE están significativamente disminuidas en cerebros con EA comparados con controles de igual edad. Además, IDE se deposita con Aß en placas seniles y vasos, indicando un grosero cambio conformacional producto de distintos mecanismos post-traduccionales. Estas alteraciones en la distribución y actividad de IDE resultan en una insuficiente degradación de Aß e insulina y promueven la formación de oligómeros de Aß y la resistencia a la hormona, procesos que convergen hacia la neurodegeneración. El estudio de los mecanismos de eliminación de Aß cerebral no sólo ayudará a comprender la patogenia de EA sino que permitirá una mejor interpretación de los ensayos clínicos en curso y el desarrollo de nuevas estrategias terapéuticas.The global increase in life expectancy turns Alzheimer's disease (AD into a growing problem. One of the distinctive features of AD is the excessive accumulation of amyloid-ß (Aß peptide in the brain. In recent years, a concept that has gained strength is that degradation of Aß by proteases in situ is an important mechanism that prevents cerebral peptide accumulation. Biochemical and genetic data have shown that insulin-degrading enzyme (IDE participates in Aß and insulin homeostasis. IDE expression and activity are significantly decreased in AD brains compared to age-matched controls. Also, IDE is deposited with Aß in senile plaques and blood vessels

  2. Cerebral blood flow and oxygen metabolism in senile dementia of Alzheimer's type and vascular dementia with deep white matter changes

    International Nuclear Information System (INIS)

    Tohgi, H.; Yonezawa, H.; Takahashi, S.; Sato, N.; Kato, E.; Kudo, M.; Hatano, K.; Sasaki, T.

    1998-01-01

    Regional cerebral blood flow (rCBF), cerebral metabolic rate of oxygen (rCMRO 2 ), oxygen extraction fraction (rOEF), and cerebral blood volume (rCBV) were investigated using positron emission tomography (PET) in 16 patients with senile dementia of Alzheimer's type (SDAT), and compared with those of 6 nondemented and 3 demented patients with deep white matter high signal (DWMH) on T2-weighted MRI and 6 controls. rCBF, rCMRO 2 and rCBV were determined using C 15 O 2 , 15 O 2 and C 15 O, respectively. rCBF and CMRO 2 were significantly decreased in the frontal, parietal and temporal cortex (P 2 was significantly reduced in only the frontal and temporal cortex of demented patients (P < 0.05). rOEF was significantly increased in the parietal cortex of patients with SDAT and in the white matter of patients with SDAT or DWMH (P < 0.05), and the increase in the frontal white matter significantly paralleled the progression of dementia in patients with SDAT (P < 0.05). rCBV was significantly decreased in the parietal and temporal cortex of patients with SDAT (P < 0.05), but not in any areas of those with DWMH. (orig.)

  3. Enfermedad de Kawasaki

    Directory of Open Access Journals (Sweden)

    Carlos Coronel Carvajal

    2003-09-01

    Full Text Available Se realizó una revisión actualizada de la enfermedad de Kawasaki, con el objetivo de familiarizar a pediatras y médicos de la familia con los elementos clínicos de la enfermedad, para que de esta manera pueda ser diagnosticada y manejada oportunamente. La enfermedad de Kawasaki fue descrita por Tomisaki Kawasaki en 1967, y se manifiesta como un síndrome febril en la niñez temprana. La enfermedad se diagnostica con mayor frecuencia en los menores de 5 años, a través de una serie de criterios clínicos establecidos. La forma típica de la enfermedad tiene 3 fases de duración variable. La afectación cardíaca es la manifestación más importante de la enfermedad, del 10 al 40 % de los niños muestran signos de vasculitis coronaria, manifestada por aneurismas de las arterias coronarias.An updated review of Kawasaki disease was carried out to make pediatricians and family physicians familiar with the clinical elements of the disease so that it can be properly diagnosed and managed. Kawasaki disease was described by Tomisaki Kawasaki in 1967 and manifests as a febrile syndrome at early childhood. The disease is very often diagnosed in under five years-old children on the basis of a series of set clinical criteria. The typical form of the disease had 3 phases of variable duration. The cardiac effect is the most important manifestation of the disease since 10 to 40 % of children show signs of coronary vasculitis in the form of coronary arterial aneurysms.

  4. Exercise Training Could Improve Age-Related Changes in Cerebral Blood Flow and Capillary Vascularity through the Upregulation of VEGF and eNOS

    Directory of Open Access Journals (Sweden)

    Sheepsumon Viboolvorakul

    2014-01-01

    Full Text Available This study aimed to investigate the effect of exercise training on age-induced microvascular alterations in the brain. Additionally, the association with the protein levels of vascular endothelial growth factor (VEGF and endothelial nitric oxide synthase (eNOS was also assessed. Male Wistar rats were divided into four groups: sedentary-young (SE-Young, n=5, sedentary aged (SE-Aged, n=8, immersed-aged (IM-Aged, n=5, and exercise trained-aged (ET-Aged, 60 minutes/day and 5 days/week for 8 weeks, n=8 rats. The MAPs of all aged groups, SE-Aged, IM-Aged, and ET-Aged, were significantly higher than that of the SE-Young group. The regional cerebral blood flow (rCBF in the SE-Aged and IM-Aged was significantly decreased as compared to SE-Young groups. However, rCBF of ET-Aged group was significantly higher than that in the IM-Aged group (P<0.05. Moreover, the percentage of capillary vascularity (%CV and the levels of VEGF and eNOS in the ET-Aged group were significantly increased compared to the IM-Aged group (P<0.05. These results imply that exercise training could improve age-induced microvascular changes and hypoperfusion closely associated with the upregulation of VEGF and eNOS.

  5. Attenuated flow‐induced dilatation of middle cerebral arteries is related to increased vascular oxidative stress in rats on a short‐term high salt diet

    Science.gov (United States)

    Cosic, Anita; Jukic, Ivana; Stupin, Ana; Mihalj, Martina; Mihaljevic, Zrinka; Novak, Sanja; Vukovic, Rosemary

    2016-01-01

    Key points Recent studies have shown that high salt (HS) intake leads to endothelial dysfunction and impaired vascular reactivity in different vascular beds in both animal and human models, due to increased oxidative stress.The objective of this study was to assess vascular response to flow‐induced dilatation (FID) and to elucidate the role of vascular oxidative stress/antioxidative capacity in middle cerebral arteries (MCAs) of HS‐fed rats in vitro.The novelty of this study is in demonstrating impaired flow‐induced dilatation of MCAs and down‐regulation of vascular antioxidant genes with HS intake, leading to increased levels of oxidative stress in blood vessels and peripheral lymph organs, which together contribute to impaired FID.In addition, results show increased oxidative stress in leukocytes of peripheral lymph organs, suggesting the occurrence of inflammatory processes due to HS intake.Recirculation of leukocytes might additionally increase vascular oxidative stress in vivo. Abstract The aim of this study was to determine flow‐induced dilatation (FID) and the role of oxidative stress/antioxidative capacity in isolated, pressurized middle cerebral arteries (MCAs) of high salt (HS)‐fed rats. Healthy male Sprague‐Dawley rats (11 weeks old) were fed low salt (0.4% NaCl; LS group) or high salt (4% NaCl; HS group) diets for 1 week. Reactivity of MCAs in response to stepwise increases in pressure gradient (Δ10–Δ100 mmHg) was determined in the absence or presence of the superoxide dismutase (SOD) mimetic TEMPOL and/or the nitric oxide synthases (NOS) inhibitor N ω‐nitro‐l‐arginine methyl ester (l‐name). mRNA levels of antioxidative enzymes, NAPDH‐oxidase components, inducible (iNOS) and endothelial nitric oxide synthases (eNOS) were determined by quantitative real‐time PCR. Blood pressure (BP), antioxidant enzymes activity, oxidative stress in peripheral leukocytes, lipid peroxidation products and the antioxidant capacity of plasma

  6. Enfermedades de notificación obligatoria

    OpenAIRE

    Instituto Nacional de Salud

    2005-01-01

    Presenta enfermedades inmunoprevenibles como: Sarampión y rubéola, Tos Ferina; Enfermedades trnasmitidas por vectores: dengue, Fiebre amarilla, Leismaniosis; Enfermedades de transmisión sexual: VIH/SIDA; Enfermedades zoonóticas: rabia animal

  7. Sleep Apnea, Sleep Duration and Brain MRI Markers of Cerebral Vascular Disease and Alzheimer's Disease: The Atherosclerosis Risk in Communities Study (ARIC).

    Science.gov (United States)

    Lutsey, Pamela L; Norby, Faye L; Gottesman, Rebecca F; Mosley, Thomas; MacLehose, Richard F; Punjabi, Naresh M; Shahar, Eyal; Jack, Clifford R; Alonso, Alvaro

    2016-01-01

    A growing body of literature has suggested that obstructive sleep apnea (OSA) and habitual short sleep duration are linked to poor cognitive function. Neuroimaging studies may provide insight into this relation. We tested the hypotheses that OSA and habitual short sleep duration, measured at ages 54-73 years, would be associated with adverse brain morphology at ages 67-89 years. Included in this analysis are 312 ARIC study participants who underwent in-home overnight polysomnography in 1996-1998 and brain MRI scans about 15 years later (2012-2013). Sleep apnea was quantified by the apnea-hypopnea index and categorized as moderate/severe (≥15.0 events/hour), mild (5.0-14.9 events/hour), or normal (sleep duration was categorized, in hours, as sleep study participants were 61.7 (SD: 5.0) years old and 54% female; 19% had moderate/severe sleep apnea. MRI imaging took place 14.8 (SD: 1.0) years later, when participants were 76.5 (SD: 5.2) years old. In multivariable models which accounted for body mass index, neither OSA nor abnormal sleep duration were statistically significantly associated with odds of cerebral infarcts, WMH brain volumes or regional brain volumes. In this community-based sample, mid-life OSA and habitually short sleep duration were not associated with later-life cerebral markers of vascular dementia and Alzheimer's disease. However, selection bias may have influenced our results and the modest sample size led to relatively imprecise associations.

  8. Sleep Apnea, Sleep Duration and Brain MRI Markers of Cerebral Vascular Disease and Alzheimer's Disease: The Atherosclerosis Risk in Communities Study (ARIC.

    Directory of Open Access Journals (Sweden)

    Pamela L Lutsey

    Full Text Available A growing body of literature has suggested that obstructive sleep apnea (OSA and habitual short sleep duration are linked to poor cognitive function. Neuroimaging studies may provide insight into this relation.We tested the hypotheses that OSA and habitual short sleep duration, measured at ages 54-73 years, would be associated with adverse brain morphology at ages 67-89 years.Included in this analysis are 312 ARIC study participants who underwent in-home overnight polysomnography in 1996-1998 and brain MRI scans about 15 years later (2012-2013. Sleep apnea was quantified by the apnea-hypopnea index and categorized as moderate/severe (≥15.0 events/hour, mild (5.0-14.9 events/hour, or normal (<5.0 events/hour. Habitual sleep duration was categorized, in hours, as <7, 7 to <8, ≥8. MRI outcomes included number of infarcts (total, subcortical, and cortical and white matter hyperintensity (WMH and Alzheimer's disease signature region volumes. Multivariable adjusted logistic and linear regression models were used. All models incorporated inverse probability weighting, to adjust for potential selection bias.At the time of the sleep study participants were 61.7 (SD: 5.0 years old and 54% female; 19% had moderate/severe sleep apnea. MRI imaging took place 14.8 (SD: 1.0 years later, when participants were 76.5 (SD: 5.2 years old. In multivariable models which accounted for body mass index, neither OSA nor abnormal sleep duration were statistically significantly associated with odds of cerebral infarcts, WMH brain volumes or regional brain volumes.In this community-based sample, mid-life OSA and habitually short sleep duration were not associated with later-life cerebral markers of vascular dementia and Alzheimer's disease. However, selection bias may have influenced our results and the modest sample size led to relatively imprecise associations.

  9. Chronic Supplementation of Paeonol Combined with Danshensu for the Improvement of Vascular Reactivity in the Cerebral Basilar Artery of Diabetic Rats

    Science.gov (United States)

    Hu, Jing; Li, Ya-Ling; Li, Zi-Lin; Li, Hua; Zhou, Xuan-Xuan; Qiu, Peng-Cheng; Yang, Qian; Wang, Si-Wang

    2012-01-01

    One of the leading causes of death in the world is cerebrovascular disease. Numerous Chinese traditional medicines, such as Cortex Moutan (root bark of Paeonia suffruticosa Andrew) and Radix Salviae miltiorrhizae (root and rhizome of Salvia miltiorrhiza Bunge), protect against cerebrovascular diseases and exhibit anti-atherosclerotic effects. Traditional medicines have been routinely used for a long time in China. In addition, these two herbs are prescribed together in clinical practice. Therefore, the pharmacodynamic interactions between the active constituents of these two herbs, which are paeonol (Pae) and danshensu (DSS), should be particularly studied. The study of Pae and DSS can provide substantial foundations in understanding their mechanisms and empirical evidence to support clinical practice. This study investigated the effects and possible mechanisms of the pharmacodynamic interaction between Pae and DSS on cerebrovascular malfunctioning in diabetes. Experimental diabetes was induced in rats, which was then treated with Pae, DSS, and Pae + DSS for eight weeks. Afterward, cerebral arteries from all groups were isolated and equilibrated in an organ bath with Krebs buffer and ring tension. Effects of Pae, DSS, and Pae + DSS were observed on vessel relaxation with or without endothelium as well as on the basal tonus of vessels from normal and diabetic rats. Indexes about oxidative stress were also determined. We report that the cerebral arteries from diabetic rats show decreased vascular reactivity to acetylcholine (ACh) which was corrected in Pae, DSS, and Pae + DSS treated groups. Furthermore, phenylephrine (PE)-induced contraction response decreased in the treated groups. Phenylephrine and CaCl2-induced vasoconstrictions are partially inhibited in the three treated groups under Ca2+-free medium. Pre-incubated with tetraethylammonium, a non-selective K+ channel blocker, the antagonized relaxation responses increased in DSS and Pae + DSS treated diabetic

  10. Enfermedad de Hirschsprung

    Directory of Open Access Journals (Sweden)

    K A Santos-Jasso

    2017-01-01

    Full Text Available El diagnóstico de la enfermedad de Hirschsprung se debe sospechar en el recién nacido que presenta datos de obstrucción intestinal: vómito, distensión abdominal y falla para el paso de meconio, en la primera semana de vida, lo que sustenta su origen congénito. Los pacientes con esta enfermedad son predominantemente del sexo masculino (84%; suelen presentar impactación fecal colónica y en la valoración abdominal muestran desimpactación, que puede ser explosiva en el examen digital del recto con vaciamiento en el 96% de los pacientes.

  11. Non-invasive assessment of intratumoral vascularity using arterial spin labeling: A comparison to susceptibility-weighted imaging for the differentiation of primary cerebral lymphoma and glioblastoma

    International Nuclear Information System (INIS)

    Furtner, J.; Schöpf, V.; Preusser, M.; Asenbaum, U.; Woitek, R.; Wöhrer, A.; Hainfellner, J.A.; Wolfsberger, S.; Prayer, D.

    2014-01-01

    Using conventional MRI methods, the differentiation of primary cerebral lymphomas (PCNSL) and other primary brain tumors, such as glioblastomas, is difficult due to overlapping imaging characteristics. This study was designed to discriminate tumor entities using normalized vascular intratumoral signal intensity values (nVITS) obtained from pulsed arterial spin labeling (PASL), combined with intratumoral susceptibility signals (ITSS) from susceptibility-weighted imaging (SWI). Thirty consecutive patients with glioblastoma (n = 22) and PCNSL (n = 8), histologically classified according to the WHO brain tumor classification, were included. MRIs were acquired on a 3 T scanner, and included PASL and SWI sequences. nVITS was defined by the signal intensity ratio between the tumor and the contralateral normal brain tissue, as obtained by PASL images. ITSS was determined as intratumoral low signal intensity structures detected on SWI sequences and were divided into four different grades. Potential differences in the nVITS and ITSS between glioblastomas and PCNSLs were revealed using statistical testing. To determine sensitivity, specificity, and diagnostic accuracy, as well as an optimum cut-off value for the differentiation of PCNSL and glioblastoma, a receiver operating characteristic analysis was used. We found that nVITS (p = 0.011) and ITSS (p = 0.001) values were significantly higher in glioblastoma than in PCNSL. The optimal cut-off value for nVITS was 1.41 and 1.5 for ITSS, with a sensitivity, specificity, and accuracy of more than 95%. These findings indicate that nVITS values have a comparable diagnostic accuracy to ITSS values in differentiating glioblastoma and PCNSL, offering a completely non-invasive and fast assessment of tumoral vascularity in a clinical setting

  12. Non-invasive assessment of intratumoral vascularity using arterial spin labeling: A comparison to susceptibility-weighted imaging for the differentiation of primary cerebral lymphoma and glioblastoma.

    Science.gov (United States)

    Furtner, J; Schöpf, V; Preusser, M; Asenbaum, U; Woitek, R; Wöhrer, A; Hainfellner, J A; Wolfsberger, S; Prayer, D

    2014-05-01

    Using conventional MRI methods, the differentiation of primary cerebral lymphomas (PCNSL) and other primary brain tumors, such as glioblastomas, is difficult due to overlapping imaging characteristics. This study was designed to discriminate tumor entities using normalized vascular intratumoral signal intensity values (nVITS) obtained from pulsed arterial spin labeling (PASL), combined with intratumoral susceptibility signals (ITSS) from susceptibility-weighted imaging (SWI). Thirty consecutive patients with glioblastoma (n=22) and PCNSL (n=8), histologically classified according to the WHO brain tumor classification, were included. MRIs were acquired on a 3T scanner, and included PASL and SWI sequences. nVITS was defined by the signal intensity ratio between the tumor and the contralateral normal brain tissue, as obtained by PASL images. ITSS was determined as intratumoral low signal intensity structures detected on SWI sequences and were divided into four different grades. Potential differences in the nVITS and ITSS between glioblastomas and PCNSLs were revealed using statistical testing. To determine sensitivity, specificity, and diagnostic accuracy, as well as an optimum cut-off value for the differentiation of PCNSL and glioblastoma, a receiver operating characteristic analysis was used. We found that nVITS (p=0.011) and ITSS (p=0.001) values were significantly higher in glioblastoma than in PCNSL. The optimal cut-off value for nVITS was 1.41 and 1.5 for ITSS, with a sensitivity, specificity, and accuracy of more than 95%. These findings indicate that nVITS values have a comparable diagnostic accuracy to ITSS values in differentiating glioblastoma and PCNSL, offering a completely non-invasive and fast assessment of tumoral vascularity in a clinical setting. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

  13. Non-invasive assessment of intratumoral vascularity using arterial spin labeling: A comparison to susceptibility-weighted imaging for the differentiation of primary cerebral lymphoma and glioblastoma

    Energy Technology Data Exchange (ETDEWEB)

    Furtner, J., E-mail: julia.furtner@meduniwien.ac.at [Department of Biomedical Imaging und Image-guided Therapy, Medical University of Vienna (Austria); Comprehensive Cancer Center-Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna (Austria); Schöpf, V., E-mail: veronika.schoepf@meduniwien.ac.at [Department of Biomedical Imaging und Image-guided Therapy, Medical University of Vienna (Austria); Preusser, M., E-mail: matthias.preusser@meduniwien.ac.at [Department of Medicine I, Division of Oncology, Medical University of Vienna (Austria); Comprehensive Cancer Center-Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna (Austria); Asenbaum, U., E-mail: ulrika.asenbaum@meduniwien.ac.at [Department of Biomedical Imaging und Image-guided Therapy, Medical University of Vienna (Austria); Woitek, R., E-mail: ramona.woitek@meduniwien.ac.at [Department of Biomedical Imaging und Image-guided Therapy, Medical University of Vienna (Austria); Wöhrer, A., E-mail: adelheid.woehrer@meduniwien.ac.at [Institute of Neurology, Medical University of Vienna (Austria); Comprehensive Cancer Center-Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna (Austria); Hainfellner, J.A., E-mail: johannes.hainfellner@meduniwien.ac.at [Institute of Neurology, Medical University of Vienna (Austria); Comprehensive Cancer Center-Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna (Austria); Wolfsberger, S., E-mail: stefan.wolfsberger@meduniwien.ac.at [Department of Neurosurgery, Medical University of Vienna (Austria); Comprehensive Cancer Center-Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna (Austria); Prayer, D., E-mail: daniela.prayer@meduniwien.ac.at [Department of Biomedical Imaging und Image-guided Therapy, Medical University of Vienna (Austria); Comprehensive Cancer Center-Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna (Austria)

    2014-05-15

    Using conventional MRI methods, the differentiation of primary cerebral lymphomas (PCNSL) and other primary brain tumors, such as glioblastomas, is difficult due to overlapping imaging characteristics. This study was designed to discriminate tumor entities using normalized vascular intratumoral signal intensity values (nVITS) obtained from pulsed arterial spin labeling (PASL), combined with intratumoral susceptibility signals (ITSS) from susceptibility-weighted imaging (SWI). Thirty consecutive patients with glioblastoma (n = 22) and PCNSL (n = 8), histologically classified according to the WHO brain tumor classification, were included. MRIs were acquired on a 3 T scanner, and included PASL and SWI sequences. nVITS was defined by the signal intensity ratio between the tumor and the contralateral normal brain tissue, as obtained by PASL images. ITSS was determined as intratumoral low signal intensity structures detected on SWI sequences and were divided into four different grades. Potential differences in the nVITS and ITSS between glioblastomas and PCNSLs were revealed using statistical testing. To determine sensitivity, specificity, and diagnostic accuracy, as well as an optimum cut-off value for the differentiation of PCNSL and glioblastoma, a receiver operating characteristic analysis was used. We found that nVITS (p = 0.011) and ITSS (p = 0.001) values were significantly higher in glioblastoma than in PCNSL. The optimal cut-off value for nVITS was 1.41 and 1.5 for ITSS, with a sensitivity, specificity, and accuracy of more than 95%. These findings indicate that nVITS values have a comparable diagnostic accuracy to ITSS values in differentiating glioblastoma and PCNSL, offering a completely non-invasive and fast assessment of tumoral vascularity in a clinical setting.

  14. Cuidador familiar de seqüelados de acidente vascular cerebral: significado e implicações Family caregiver of stroke sequel patients: meanings and implications

    Directory of Open Access Journals (Sweden)

    Fernanda de Freitas Mendonça

    2008-01-01

    Full Text Available O acidente vascular cerebral (AVC está entre as principais causas de morte no mundo. Diante das incapacidades impostas pelo AVC, surge o cuidador familiar. O objetivo desta pesquisa foi analisar o significado e as implicações de se tornar cuidador de um indivíduo seqüelado de AVC. Trata-se de um estudo qualitativo, realizado com cinco cuidadores, em Londrina-PR, no período de agosto a dezembro de 2005. Os dados foram coletados por meio de entrevistas semi-estruturadas e submetidos à análise de discurso proposta por Martins e Bicudo. Da análise das entrevistas emergiram sete categorias: voltando-se para o Ser cuidado, descrevendo os cuidados, apresentando as mudanças, o apoio da espiritualidade, compreendendo o significado do cuidado, expressando as necessidades para cuidar e perspectivas para o futuro. Os resultados revelaram que ser cuidador familiar é um fenômeno complexo, que gera nos sujeitos sentimentos de alegria e felicidade concomitantes aos sentimentos de medo, ansiedade e revolta.The brain vascular accident (BVA is one of the main death causes worldwide. Due to the impairments imposed by the BVA, there is the family caregiver. This work aims to analyze the meaning and implications of being a caregiver of a stroke sequel person. It is a qualitative research, carried out with five caregivers in Londrina-PR, from August to December 2005. Data were collected in semi-structured interviews and were subjected to discourse analysis proposed by Martins and Bicudo. From the analysis of interviews seven categories arouse: turning to the being cared, describing care, presenting changes, spirituality support, understanding the meaning of care, expressing the needs to take care and future perspectives. Results revealed that being a family caregiver is a complex phenomenon, that creates in the subjects feelings of happiness and along with feelings of fear, anxiety and revolt.

  15. Features of cerebral vascular reactivity in patients with different clinical course of a high degree of myopia

    Directory of Open Access Journals (Sweden)

    G. V. Shkrebets

    2014-07-01

    Full Text Available Purpose: to examine the state rate parameters of cerebral and ocular vessels in patients with glaucoma combined with myopia of high degree.Methods: the study involved 3 groups of patients aged 16-32 years: 1st — 30 patients (60 eyes — with a stationary myopia of 6.5 to 9.0 D and normal intraocular pressure (IOP; 2nd — 23 patients (46 eyes — with a high degree of progressive myopia and glaucoma with normalized intraocular pressure during instillation Azopt included 2 subgroups: subgroup A — 14 patients (28 eyes — with ischemic variant of glaucoma; subgroup B — 9 patients (18 eyes — with dyscirculatory variant of glaucoma; 3rd group (control — 10 somatically healthy individuals of similar age. Following a standard ophthalmic examination techniques, as well as color Doppler mapping of the main arteries of the brain and the eyeball on the unit Acuson 128 HR/10 (USA and hypocapnic (with O2 and hypercapnic (CO2 probe.Results: In subgroup 2A patients showed significant (p <0.05 decrease in Vs in the central retinal artery and short posterior cili- ary arteries respectively 38.0% and 32.8% and increase the resistance index (RI of vessels in 21.8% and 22.6%, increase Vs in the middle cerebral artery (MCA at 11.5% and RI by 11.8% compared to the patients the third and first groups, with а hypocapnic test Vs in the MCA decreased by 35.4%, and increased with hypercapnic test for 23.0%; of the subgroup B in central retinal vein to 33.9% and 19.6%, lower Vs and RI in the vertebral artery (VA by 20,0% and 9,1% respectively, with a hypercapnic test Vs in the MCA increased by 32.2%, and decreased during hypocapnic sample at 26.0%.Conclusion: the predominance of the ability of MCA to vasoconstriction combined with reduced blood flow in central retinal artery and short posterior ciliary arteries and cause ischemica variant of glaucoma, slowing blood flow in the vertebrobasilar basin combined with a reduction of venous outflow of the of the

  16. Vascular mechanism of axonal degeneration in peripheral nerves in hemiplegic sides after cerebral hemorrhage: An experimental study

    Directory of Open Access Journals (Sweden)

    Bayram Ednan

    2008-04-01

    Full Text Available Abstract Background Though retrograde neuronal death and vascular insufficiency have been well established in plegics following intracerebral hemorrhage, the effects of plegia on arterial nervorums of peripheral nerves have not been reported. In this study, the histopathological effects of the intracerebral hemorrhage on the dorsal root ganglions and sciatic nerves via affecting the arterial nervorums were investigated. Methods This study was conducted on 13 male hybrid rabbits. Three animals were taken as control group and did not undergo surgery. The remaining 10 subjects were anesthetized and were injected with 0.50 ml of autologous blood into their right sensory-motor region. All rabbits were followed-up for two months and then sacrificed. Endothelial cell numbers and volume values were estimated a three dimensionally created standardized arterial nervorums model of lumbar 3. Neuron numbers of dorsal root ganglions, and axon numbers in the lumbar 3 nerve root and volume values of arterial nervorums were examined histopathologically. The results were analyzed by using a Mann-Whitney-U test. Results Left hemiplegia developed in 8 animals. On the hemiplegic side, degenerative vascular changes and volume reduction in the arterial nervorums of the sciatic nerves, neuronal injury in the dorsal root ganglions, and axonal injury in the lumbar 3 were detected. Statistical analyses showed a significant correlation between the normal or nonplegic sides and plegic sides in terms of the neurodegeneration in the dorsal root ganglions (p Conclusion Intracerebral hemorrhage resulted in neurodegeneration in the dorsal root ganglion and axonolysis in the sciatic nerves, endothelial injury, and volume reduction of the arterial nervorums in the sciatic nerves. The interruption of the neural network connection in the walls of the arterial nervorums in the sciatic nerves may be responsible for circulation disorders of the arterial nervorums, and arterial

  17. Dieta DASH na redução dos níveis de pressão arterial e prevenção do acidente vascular cerebral = DASH diet in reducing blood pressure and preventing stroke

    Directory of Open Access Journals (Sweden)

    Piper, Vanessa Alves

    2012-01-01

    Conclusões: As evidências disponíveis sugerem que modificações no estilo de vida, incluindo a adoção de uma dieta tipo DASH, são estratégias eficazes no controle da hipertensão arterial e na redução de eventos cardiovasculares, como o acidente vascular cerebral

  18. Malaria cerebral Cerebral malaria

    Directory of Open Access Journals (Sweden)

    Carlos Hugo Zapata Zapata

    2003-03-01

    Full Text Available La malaria Cerebral (MC es la complicación más frecuente de la malaria por P. falciparum; aproximadamente el 90% de las personas que la han padecido se recuperan completamente sin secuelas neurológicas. Aún no se conoce con claridad su patogénesis pero se han postulado cuatro hipótesis o mecanismos posibles: 1 citoadherencia y secuestro de glóbulos rojos parasitados en la microvasculatura cerebral; 2 formación de rosetas y aglutinación de glóbulos rojos parasitados; 3 producción de citoquinas y activación de segundos mensajeros y, 4 apertura de la barrera hematoencefálica. Sin embargo, queda un interrogante sin resolver aún: ¿qué proceso se lleva a cabo para que el parásito, desde el espacio microvascular, pueda interferir transitoriamente con la función cerebral? Recientemente se ha utilizado el precursor de la proteína b-Amiloide como un marcador de daño neuronal en MC; este precursor será de gran ayuda en futuras investigaciones realizadas en nuestro medio que aporten información para comprender la patogénesis de la MC. Is the most common complication of P. falciparum malaria; nearly 90% of people who have suffered CM can recover without neurological problems. Currently there are four hypotheses that explain pathogenesis of CM: cytoadherence and sequestering of parasitized red blood cells to cerebral capillaries; rosette formation and parasitized red blood cells agglutination; production of cytokines and activation of second messengers and opening of the blood-brain barrier. However the main question remains to be answered; how the host-parasite interaction in the vascular space interferes transiently with cerebral function? Recently, the beta amyloid precursor peptide has been employed as marker of neural injury in CM. It is expected that the beta amyloid precursor peptide will help to understand the pathogenesis of CM in complicated patients of endemic areas of Colombia.

  19. Transition of care for the elderly after cerebrovascular accidents - from hospital to the home Transición del cuidado del adulto mayor despues del accidente cerebral vascular del hospital para casa Transição do cuidado com o idoso após acidente vascular cerebral do hospital para casa

    Directory of Open Access Journals (Sweden)

    Rosalina Aparecida Partezani Rodrigues

    2013-02-01

    Full Text Available OBJECTIVE: to examine the transition of care in families caring for elderly persons who suffered the first episode of a cerebrovascular accident. METHODOLOGY: an instrumental ethnographic case study was used. The sample comprised 20 subjects: 10 caregivers and 10 elderly persons aged 65 or over, of both sexes, with diagnoses of first episode of cerebrovascular accident, capable of communicating, and requiring care from a main carer in their family. The data was collected through interviews, observation, existing documentation and field notes. Qualitative analysis techniques were used to codify and classify the data and to formulate significant categories, which generated typologies of care. RESULTS AND DISCUSSION: The central idea was the Transition of Care and showed the context in three typologies: The care process for the dependent elderly person, Strategies for the care process and Impact and acceptance of the limitations. CONCLUSION: The data indicates that caring for an elderly person after a cerebrovascular accident is a challenge for the family. The data permitted it possible to elaborate a proposal for a model for the organization of the work, with a view to holistic care delivery in the health services, forming a care network, which constitutes an advance for the area of nursing.OBJETIVO: examinar la transición del cuidado en familias que cuidan de adultos mayores que sufrieron el primer episodio de accidente cerebral vascular. METODOLOGÍA: Fue utilizado el estudio de caso etnográfico instrumental. La muestra fue constituida de 20 sujetos, siendo 10 cuidadores y 10 adultos con 65 años y más, de ambos sexos, con diagnóstico de primer episodio de accidente cerebral vascular, capaces de comunicarse, demandando cuidado de un cuidador principal en la familia. Los datos fueron colectados por medio de entrevistas, observaciones, documentos existentes y notas de campo. Fueron utilizadas las técnicas de análisis cualitativo para

  20. A stepwise approach to stroke surveillance in Brazil: the EMMA (Estudo de Mortalidade e Morbidade do Acidente Vascular Cerebral) study.

    Science.gov (United States)

    Goulart, Alessandra C; Bustos, Iara R; Abe, Ivana M; Pereira, Alexandre C; Fedeli, Ligia M; Benseñor, Isabela M; Lotufo, Paulo A

    2010-08-01

    Stroke mortality rates in Brazil are the highest in the Americas. Deaths from cerebrovascular disease surpass coronary heart disease. To verify stroke mortality rates and morbidity in an area of São Paulo, Brazil, using the World Health Organization Stepwise Approach to Stroke Surveillance. We used the World Health Organization Stepwise Approach to Stroke Surveillance structure of stroke surveillance. The hospital-based data comprised fatal and nonfatal stroke (Step 1). We gathered stroke-related mortality data in the community using World Health Organization questionnaires (Step 2). The questionnaire determining stroke prevalence was activated door to door in a family-health-programme neighbourhood (Step 3). A total of 682 patients 18 years and above, including 472 incident cases, presented with cerebrovascular disease and were enrolled in Step 1 during April-May 2009. Cerebral infarction (84.3%) and first-ever stroke (85.2%) were the most frequent. In Step 2, 256 deaths from stroke were identified during 2006-2007. Forty-four per cent of deaths were classified as unspecified stroke, 1/3 as ischaemic stroke, and 1/4 due to haemorrhagic subtype. In Step 3, 577 subjects over 35 years old were evaluated at home, and 244 cases of stroke survival were diagnosed via a questionnaire, validated by a board-certified neurologist. The population demographic characteristics were similar in the three steps, except in terms of age and gender. By including data from all settings, World Health Organization stroke surveillance can provide data to help plan future resources that meet the needs of the public-health system.

  1. Neuropsychology and its correlation with cerebral blood flow in patients with Alzheimer's disease, vascular dementia and normal seniors

    International Nuclear Information System (INIS)

    Ang Qiuqing; Jiang Kaida; Huang Yanyan; Zhang Mingyuan; Zhao Jinghua; Lin Xiangtong; He Fengfeng; Gu Niufan

    1999-01-01

    Objective: To study the psychological, functional imaging findings and the relationship between them in patients with Alzheimer's disease (AD), vascular dementia (VD) and normal seniors (NS). Methods: Psychological evaluation with rating scales and functional imaging examination with single photon emission computed tomography were conducted to AD, VD (both met the DSM-IV diagnostic criteria) and NS. Results: In psychological examination, AD and VD showed significantly lower scores in every scale than NS, and in Fuld goods memory test (FOM), AD appeared even worse than VD. In functional imaging examination, at most brain areas, radioactive ratio (RAR) in AD and VD were obviously lower than that in NS. While in right parietal lobe and bilateral frontal lobes, RAR in AD showed significantly lower than in VD. FOM score of NS was correlated with RAR in several brain areas. RARs of right parietal lobe in AD and of left parietal lobe in VD showed correlation with scores of most rating scales. Conclusions: Hypoperfusion in right parietal lobe of AD and in left parietal lobe of VD contributes mainly to their cognitive deficiency, this may further suggest the different right or left hemisphere mechanism in AD and VD

  2. Cerebrovascular accident in the aged: changes in family relations El anciano tras accidente cerebrovascular: alteraciones en el relacionamento familiar O idoso após acidente vascular cerebral: alterações no relacionamento familiar

    Directory of Open Access Journals (Sweden)

    Sueli Marques

    2006-06-01

    desarrollar un plan de acción que pueda favorecer las relaciones y la adaptación de la familia a las demandas, con vistas a mejorar las condiciones de vida de sus miembros, incluso el anciano.Os objetivos deste estudo foram: identificar os idosos atendidos, na Unidade de Emergência de um hospital governamental do município de Ribeirão Preto-SP, com diagnóstico médico de acidente vascular cerebral, e suas respectivas famílias, bem como identificar as alterações, no relacionamento familiar, que ocorreram após o evento. Utilizou-se a Técnica de Incidentes Críticos adaptada para identificar as alterações no relacionamento familiar ocorridas após a doença e, para a análise, a reflexão do Caminho do Pensamento. A amostra constou de 11 famílias, totalizando 34 participantes. A análise das conseqüências revelou as alterações no relacionamento familiar, que constituíram 13 subcategorias, 5 positivas e 8 negativas, perfazendo o total de 58 alterações, sendo 30 positivas e 28 negativas. O estudo revelou a necessidade de trabalhar com a família para identificar as alterações e desenvolver um plano de ações que possa favorecer as relações e a adaptação da família às demandas, com vistas a melhorar as condições de vida de seus membros, inclusive o idoso.

  3. Enfermedad de Hashimoto

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    Hernando Latorre

    1956-01-01

    Full Text Available Se describe un caso de enfermedad de hashimoto en una enferma de 47 años y se hacen algunos comentarios sobre la interpretación y relaciones de esta entidad con el coto de riedel y el coto linfadenoide. La lesión al examen clínico simuló un tumor maligno de tiroides, diagnóstico con el cual fue remitido el órgano al laboratorio de anatomía patológica.

  4. Acromegalia y enfermedad cardiovascular

    OpenAIRE

    Perel, Cecilia; Echin, Mónica

    2011-01-01

    La acromegalia es producida por un adenoma hipofisario en más del 99% de los casos. Es una enfermedad desfigurante e inhabilitante, que al no ser tratada adecuadamente reduce la expectativa de vida en un promedio de diez años. Las complicaciones son secundarias al aumento de la hormona de crecimiento (GH: growth hormone) y del factor de crecimiento insulínico tipo 1 (IGF-1: insulin-like growth factor 1). Tanto la GH como la IGF-1 tienen receptores a nivel del miocito cardíaco, por el cual el ...

  5. Enfermedad periodontal en adolescentes

    OpenAIRE

    Navarro Napóles, Josefa

    2017-01-01

    Introducción: durante mucho tiempo se creyó que la enfermedad periodontal era una afección de la adultez, sin embargo la falta de motivación en la práctica de la higiene oral en la etapa de la adolescencia condiciona su aparición. Objetivo: identificar el estado periodontal en adolescentes de la escuela Secundaria Básica Urbana ¨Raúl Pujols¨, en la ciudad de Santiago de Cuba, en el periodo de septiembre 2014 hasta marzo 2015. Materiales y Métodos: se realizó un estudio observacional, descript...

  6. Enfermedad Diverticular del Colon

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    Gonzalo López Escobar

    1991-06-01

    Full Text Available

    Los divertículos del colon han sido reconocidos por varios observadores desde hace más de un siglo, pero en su mayor parte se trataba de casos aislados, hoy se la considera como la enfermedad del siglo XX, la de la era moderna y de los países industrializados y de avanzada tecnología (5,18,33.

    Según el diccionario de la Real Academia Española (11, divertículo, del latín, diverticulum, quiere decir desviación de un camino; y desde el punto de vista anatómico, apéndice hueco y terminado en fondo de saco. (Gráfica No. 1.

    Goligher (17 lo define como la “posada al borde del camino, probablemente un lugar, a menudo, de mala reputación”.

    Historia

    Según Hackford (18, el proceso fué descrito brevemente por Littre a comienzos del siglo XVIII; pero se le atribuye a Cruveilhier la primera descripción como proceso patológico en 1849, quien, además, mencionó: “encontramos, no rara vez, en el sigmoide, entre las bandas de fibras musculares longitudinales, una serie de pequeños tumores piriformes oscuros, que están formados por hernias de la mucosa a través de brechas en la capa muscular” (17.

    Fleischman en 1815 hizo la primera observación de la enfermedad y empleó el término divertículo (45.

    Rokitansky en 1.849, habló de una enfermedad adquirida y consideró que su causa consistía en la constipación (45.

    Virchowen 1853 describió la perisigmoiditis (45.

    En 1859 Sidney Jones informó de una fístula colo-vesical debida a diverticulitis (5,45.

    Loomis en 1870 describe una peritonitis como resultante de una diverticulitis (45.

    En 1877 Ball describió la anatomía patológica de la enfermedad y presentó dos casos de fístula colovesical debidas a diverticulitis (9. Cripps en 1.888 popularizó la colostomía de desviación como tratamiento para la fístula colovesical(18...

  7. Diabetes y enfermedad ocular

    OpenAIRE

    Flores Ojeda, Desireé

    2016-01-01

    En el presente trabajo se lleva a cabo una revisión bibliográfica de la diabetes en relación con las diferentes patologías oculares a las que está asociada. La diabetes, es una enfermedad crónica que comporta un importante problema sanitario y social, que afecta a muchos órganos. De entre todos ellos, el ojo parece afectarse especialmente por los cambios de glucosa en sangre. Una vez entendida la estructura del ojo humano, el trabajo estudia las partes especialmente afectadas en pacientes ...

  8. Enfermedad de Hirschsprung

    OpenAIRE

    K A Santos-Jasso

    2017-01-01

    Definición
    La enfermedad de Hirschsprung, megacolon congénito o agangliónico, o Aganglionosis Intestinal Congénita, es una anomalía caracterizada por la ausencia congénita de células ganglionares del sistema parasimpático de los piejos intermientéricos de Auerbach, situado entre las capas musculares, circular y longitudinal, y el submucoso de Meissner; con conducción inefectiva del peristaltismo, ocasionando obstrucción funcional (24, 37, 65, 8...

  9. Enfermedades de notificación obligatoria

    OpenAIRE

    Instituto Nacional de Salud

    2008-01-01

    Presenta datos estadísticos de Enfermedades inmunoprevenibles como: Rubéola y sarampión, Tos ferina, Influenza A H1N1; Enfermedades transmitidas por vectores como: Dengue, Fiebre amarilla, Enfermedad de Carrión, Leismaniosis; Enfermedades zoonóticas como: Rabia anima y por último enfermedades de Transmisión sexual como: VIH - SIDA

  10. Enfermedades de notificación obligatoria

    OpenAIRE

    Instituto Nacional de Salud

    2009-01-01

    Presenta datos estadísticos de Enfermedades inmunoprevenibles como: Rubéola y sarampión, Tos ferina, Influenza A H1N1; Enfermedades transmitidas por vectores como: Dengue, Fiebre amarilla, Enfermedad de Carrión, Leismaniosis; Enfermedades zoonóticas como: Rabia animal y por último enfermedades de Transmisión sexual como: VIH - SIDA

  11. Enfermedades de notificación obligatoria

    OpenAIRE

    Instituto Nacional de Salud

    2008-01-01

    Presenta datos estadísticos de Enfermedades inmunoprevenibles como: Rubéola y sarampión, Tos ferina, Influenza A H1N1; Enfermedades transmitidas por vectores como: Dengue, Fiebre amarilla, Enfermedad de Carrión, Leismaniosis; Enfermedades zoonóticas como: Rabia animal y por último enfermedades de Transmisión sexual como: VIH - SIDA

  12. Morbimortalidad por enfermedad cerebrovascular de tipo isquémica Morbimortality from ischemic stroke

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    Adianis González González

    2007-12-01

    Full Text Available Las enfermedades cerebrovasculares constituyen la tercera causa de muerte en Cuba y en la mayoría de los países desarrollados. Tiene estrecha relación su aparición y tórpida evolución con la existencia de enfermedades o factores de riesgo como: diabetes mellitus, hipertensión arterial, enfermedades cardíacas, accidentes vasculares encefálicos previos, tabaquismo y obesidad. La isquemia cerebral constituye la causa de la mayoría de los ictus, tanto de tipo trombótico como embólico; sus consecuencias causan postración e incapacidad. Se realizó un estudio transversal y descriptivo de aquellos pacientes admitidos en la Sala de Cuidados Especiales del Hospital “General Calixto García” en el período de enero a julio de 2006, con diagnóstico de enfermedad cerebrovascular, para identificar los factores de riesgo más frecuentes, evaluar los protocolos de actuación, definir grado de incapacidad al egreso, así como las causas más frecuentes de muerte. Encontramos que la enfermedad tuvo mayor incidencia en la 7ma. y 8va. décadas de la vida, los factores de riesgo más frecuentes fueron la hipertensión arterial y el antecedente de enfermedad cerebrovascular previa, los protocolos de actuación no fueron cumplidos debidamente por múltiples causas. Solo un 26,2 % estaba asintomático al alta desde el punto de vista funcional, el resto presentaba algún tipo de discapacidad. La causa de muerte más frecuente fue extraneurológica.Strokes are the third cause of death in Cuba and in most of the developed countries. Its appearance and torpid evolution are closely related to the existence of diseases or risk factors, such as: diabetes mellitus, arterial hypertension, previous vascular encephalic accidents, smoking and obesity. Ischemic stroke is the cause of most of thrombotic and embolic strokes, whose consequences are prostration and disability. A cross-sectional descriptive study of those patients admitted in the special care ward of

  13. Associations between cerebral amyloid and changes in cognitive function and falls risk in subcortical ischemic vascular cognitive impairment.

    Science.gov (United States)

    Dao, Elizabeth; Best, John R; Hsiung, Ging-Yuek Robin; Sossi, Vesna; Jacova, Claudia; Tam, Roger; Liu-Ambrose, Teresa

    2017-06-28

    To determine the association between amyloid-beta (Aβ) plaque deposition and changes in global cognition, executive functions, information processing speed, and falls risk over a 12-month period in older adults with a primary clinical diagnosis of subcortical ischemic vascular cognitive impairment (SIVCI). This is a secondary analysis of data acquired from a subset of participants (N = 22) who were enrolled in a randomized controlled trial of aerobic exercise (NCT01027858). The subset of individuals completed an 11 C Pittsburgh compound B (PIB) scan. Cognitive function and falls risk were assessed at baseline, 6-months, and 12-months. Global cognition, executive functions, and information processing speed were measured using: 1) ADAS-Cog; 2) Trail Making Test; 3) Digit Span Test; 4) Stroop Test, and 5) Digit Symbol Substitution Test. Falls risk was measured using the Physiological Profile Assessment. Hierarchical multiple linear regression analyses determined the unique contribution of Aβ on changes in cognitive function and falls risk at 12-months after controlling for experimental group (i.e. aerobic exercise training or usual care control) and baseline performance. To correct for multiple comparisons, we applied the Benjamini-Hochberg procedure to obtain a false discovery rate corrected threshold using alpha = 0.05. Higher PIB retention was significantly associated with greater decrements in set shifting (Trail Making Test, adjusted R 2  = 35.3%, p = 0.002), attention and conflict resolution (Stroop Test, adjusted R 2  = 33.4%, p = 0.01), and information processing speed (Digit Symbol Substitution Test, adjusted R 2  = 24.4%, p = 0.001) over a 12-month period. Additionally, higher PIB retention was significantly associated with increased falls risk (Physiological Profile Assessment, adjusted R 2  = 49.1%, p = 0.04). PIB retention was not significantly associated with change in ADAS-Cog and Verbal Digit Span Test (p > 0.05). Symptoms

  14. In-hospital mortality risk factors for patients with cerebral vascular events in infectious endocarditis. A correlative study of clinical, echocardiographic, microbiologic and neuroimaging findings.

    Science.gov (United States)

    González-Melchor, Laila; Kimura-Hayama, Eric; Díaz-Zamudio, Mariana; Higuera-Calleja, Jesús; Choque, Cinthia; Soto-Nieto, Gabriel I

    2015-01-01

    Cardiac complications in infectious endocarditis (IE) are seen in nearly 50% of cases, and systemic complications may occur. The aim of the present study was to determine the characteristics of inpatients with IE who suffered acute neurologic complications and the factors associated with early mortality. From January 2004 to May 2010, we reviewed clinical and imaging charts of all of the patients diagnosed with IE who presented a deficit suggesting a neurologic complication evaluated with Computed Tomography or Magnetic Resonance within the first week. This was a descriptive and retrolective study. Among 325 cases with IE, we included 35 patients (10.7%) [19 males (54%), mean age 44-years-old]. The most common underlying cardiac disease was rheumatic valvulopathy (n=8, 22.8%). Twenty patients survived (57.2%, group A) and 15 patients died (42.8%, group B) during hospitalization. The main cause of death was septic shock (n=7, 20%). There was no statistical difference among groups concerning clinical presentation, vegetation size, infectious agent and vascular territory. The overall number of lesions was significantly higher in group B (3.1 vs. 1.6, p=0.005) and moderate to severe cerebral edema were more frequent (p=0.09). Sixteen patients (45.7%) (12 in group A and 4 in group B, p=0.05) were treated by cardiac surgery. Only two patients had a favorable outcome with conservative treatment (5.7%). In patients with IE complicated with stroke, the number of lesions observed in neuroimaging examinations and conservative treatment were associated with higher in-hospital mortality. Copyright © 2014 Instituto Nacional de Cardiología Ignacio Chávez. Published by Masson Doyma México S.A. All rights reserved.

  15. A New Computational Model for Neuro-Glio-Vascular Coupling: Astrocyte Activation Can Explain Cerebral Blood Flow Nonlinear Response to Interictal Events.

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    Solenna Blanchard

    Full Text Available Developing a clear understanding of the relationship between cerebral blood flow (CBF response and neuronal activity is of significant importance because CBF increase is essential to the health of neurons, for instance through oxygen supply. This relationship can be investigated by analyzing multimodal (fMRI, PET, laser Doppler… recordings. However, the important number of intermediate (non-observable variables involved in the underlying neurovascular coupling makes the discovery of mechanisms all the more difficult from the sole multimodal data. We present a new computational model developed at the population scale (voxel with physiologically relevant but simple equations to facilitate the interpretation of regional multimodal recordings. This model links neuronal activity to regional CBF dynamics through neuro-glio-vascular coupling. This coupling involves a population of glial cells called astrocytes via their role in neurotransmitter (glutamate and GABA recycling and their impact on neighboring vessels. In epilepsy, neuronal networks generate epileptiform discharges, leading to variations in astrocytic and CBF dynamics. In this study, we took advantage of these large variations in neuronal activity magnitude to test the capacity of our model to reproduce experimental data. We compared simulations from our model with isolated epileptiform events, which were obtained in vivo by simultaneous local field potential and laser Doppler recordings in rats after local bicuculline injection. We showed a predominant neuronal contribution for low level discharges and a significant astrocytic contribution for higher level discharges. Besides, neuronal contribution to CBF was linear while astrocytic contribution was nonlinear. Results thus indicate that the relationship between neuronal activity and CBF magnitudes can be nonlinear for isolated events and that this nonlinearity is due to astrocytic activity, highlighting the importance of astrocytes in

  16. Study on the change and relationship between plasma D-dimer and homocysteine levels in patients with acute cerebral vascular accident

    International Nuclear Information System (INIS)

    Lu Ye; Pan Xiangtao; Yan Min

    2009-01-01

    Objective: To study the clinical significance of the changes and the relationships between plasma D-dimer (D-D) and Homocysteine (Hcy) expression in patients with acute cerebral infarction and acute cerebral hemorrhage. Methods: Plasma D-D (with ELISA) and Hcy (with CLIA) levels were measured in 397 patients with cerebral infarction, 122 patients with cerebral hemorrhage and 30 controls.Results 1) The mean level of the plasma D-D and Hcy in patients with acute cerebral infarction was 5.20±0.92μg/L and 21.23±13.54 μmol/L respectively, which was significant higher than that in controls and patients with acute cerebral hemorrhage. 2) Higher expressing of D-D and Hcy was found in 101 (25.4%) and 140 (35.3%) cases of acute cerebral infarction patients. The data in acute cerebral hemorrhage group was 17 (13.9%) and 27 (22.1%) respectively. There was significant difference between two groups, P<0.01. 3) There was not correlations with the expression level of D-D and Hcy in patients with acute cerebral infarction and patients with acute cerebral hemorrhage. 4) The expressing level of the Plasma D-D in acute cerebral infarction patients was not significant difference in both age and sex. The expressing level of Hcy in male was higher than that in female. There was not significant difference in the expressing level of Hcy in different age. Conclusion: The levels of plasma D-D and Hcy in patients with acute cerebral infarction significantly in creased, but there were not correlations between the levels of the two parameters. (authors)

  17. Valor pronóstico del mapeo cerebral en la recuperación funcional del paciente con enfermedad cerebrovascular isquémica Pronostic value of brain mapping in the functional recovery of patients with ischemic cerebrovascular disease

    Directory of Open Access Journals (Sweden)

    Freddy Torres Candebat

    2012-10-01

    Full Text Available Se efectuó un estudio descriptivo longitudinal y prospectivo de 22 pacientes con ictus isquémico, que fueron ingresados en el Hospital General Docente "Dr. Juan Bruno Zayas Alfonso" de Santiago de Cuba desde enero de 2010 hasta igual mes de 2011, con vistas a establecer un pronóstico de recuperación funcional a partir del mapeo cerebral. Se realizó la valoración neurofisiológica y funcional mediante el índice de Barthel. En la serie estudiada la edad media fue de 57,2 años y predominó el sexo masculino. El mapeo cerebral se caracterizó por la presencia de actividad lenta (theta, delta y disminución de beta y alfa en regiones corticales ipsilaterales y contralaterales al territorio afectado por el foco isquémico; asimismo, la magnitud de estas alteraciones se correlacionó estrechamente con la ganancia funcional. La disminución de energía en las bandas alfa, asociada al incremento de esta en las bandas theta y delta, de tipo global, constituyeron índices de mal pronóstico rehabilitador.A longitudinal and prospective descriptive study was made in 22 patients with ischemic ictus that were admitted to "Dr. Juan Bruno Zayas Alfonso" Teaching General Hospital in Santiago de Cuba from January, 2010 to the same month of 2011, aimed at establishing a prognosis of functional recovery from the cerebral mapping. A neurophysiological and functional evaluation was carried out by means of Barthel index. In the studied series the mean age was 57.2 years and the male sex prevailed. Cerebral mapping was characterized by the presence of slow activity (theta, delta and beta and alpha decreases in cortical ipsilateral and contralateral regions to the territory affected by the ischemic focus; likewise, the magnitude of these changes was closely correlated with the functional gain. The energy decrease in the alpha bands associated with its increment in the theta and delta bands, of global type, constituted rates of bad rehabilitation prognosis.

  18. Estudo de fatores clínicos preditivos para crises epilépticas após acidente vascular cerebral isquêmico Preditive clinical factors for epileptic seizures after ischemic stroke

    Directory of Open Access Journals (Sweden)

    Marcia Maiumi Fukujima

    1996-06-01

    Full Text Available Apresentamos aspectos clínicos de 35 pacientes com acidente vascular cerebral isquêmico que evoluíram com crises epilépticas (Grupo 1, comparando-os a 35 pacientes com AVCI sem crises epilépticas (Grupo 2. A comparação das idades entre os grupos não mostrou diferença significante. O sexo masculino e a raça branca predominaram em ambos os grupos. Diabetes melito, hipertensão arterial, ataque isquêmico transitório, acidente vascular cerebral pregresso, enxaqueca, doença de Chagas, embolia cerebral cardiogênica e uso de anticoncepcional oral não diferiram significantemente entre os grupos. Tabagismo e etilismo foram significantemente mais freqüentes no Grupo 1 (pPreditive clinical factors for epileptic seizures after ischemic stroke. Clinical features of 35 patients with ischemic stroke who developed epilepsy (Group 1 were compared with those of 35 patients with ischemic stroke without epilepsy (Group 2. The age of the patients did not differ between the groups. There were more men than women and more white than other races in both groups. Diabetes melitus, hypertension, transient ischemic attack, previous stroke, migraine, Chagas disease, cerebral embolism of cardiac origin and use of oral contraceptive did not differ between the groups. Smokers and alcohol users were more frequent in Group 1 (p<0,05. Most patients of Group 1 presented with hemiparesis; none presented cerebellar or brainstem involvement. Perhaps strokes in smokers have some different aspects, that let them more epileptogenic than in non smokers.

  19. Análise das barreiras à utilização de trombolíticos em casos de acidente vascular cerebral isquêmico em um hospital privado do Rio de Janeiro, Brasil

    OpenAIRE

    Fonseca,Luiz Henrique de Oliveira; Rosa,Maria Luiza Garcia; Silva,Arthur Carvalho; Maciel,Renan Marchesi; Volschan,André; Mesquita,Evandro Tinoco

    2013-01-01

    O acidente vascular cerebral isquêmico (AVCi) é uma importante causa de sequela e morte. A correta utilização do trombolítico enfrenta várias barreiras. O objetivo foi discutir as barreiras à terapia trombolítica em pacientes que chegam, com sintomas de AVCi agudo, à emergência de um hospital privado do Rio de Janeiro, Brasil. Coorte retrospectiva de pacientes entre 2009 e 2011. Foram admitidos 257 pacientes com suspeita de AVCi. Dos pacientes com diagnóstico confirmado (156), 11,5% (18) fora...

  20. Treino de vibração de corpo inteiro na função motora em pacientes acometidos por acidente vascular cerebral : Whole body vibration training in motor function in patients affected with stroke

    OpenAIRE

    Adriana Teresa Silva

    2015-01-01

    Resumo: O Acidente Vascular Cerebral (AVC) é um problema de saúde pública relevante em virtude de sua alta frequência e de grande impacto na população. Os sobreviventes apresentam sequelas que implicam algum grau de dependência e um elevado custo social. Minimizar as sequelas e aumentar a recuperação funcional tem sido um ponto importante para os profissionais da reabilitação. O objetivo do artigo 1 foi verificar os efeitos do treino de vibração de corpo inteiro nos pacientes acometidos por A...

  1. Chlamydia pneumoniae and stroke: is there a direct relationship? Chlamydia pneumoniae e acidente vascular cerebral aterotrombótico: existe relação direta?

    Directory of Open Access Journals (Sweden)

    Rubens J. Gagliardi

    2009-09-01

    Full Text Available OBJECTIVE: To investigate the possible relationship between atherothrombotic stroke and Chlamydia pneumoniae. METHOD: 150 patients with carotid atherothrombosis were enrolled. The casuistic was divided in three groups: ischemic stroke (IS: 65 patients; transient ischemic attack (TIA: 26 patients; and control: 59. The IS or TIA onset was up to 30 days from the beginning of the study. Carotid atheromatoses was diagnosed by Doppler-ultrasonography. Patients with cardioembolic risk or non-atherothrombotic origin were excluded. Comparisons were done between the three groups, and within each group according to the different age sub-groups, to the main arteries affected, and to the atherogenic risk factors. Bacteria detection was done using polimerase chain reaction. RESULTS: Only one patient tested positive for C. pneumoniae belonging to the control group. CONCLUSION: These results do not suggest that C. pneumoniae participated in the onset of IS or TIA or that it has a role in carotid plaque destabilization.OBJETIVO: Investigar a possível relação entre Chlamydia pneumoniae e acidente vascular cerebral aterotrombótico (AVC. MÉTODO: 150 pacientes com aterotrombose carotídea foram estudados. A casuística foi dividida em 3 grupos: AVC: 65 pacientes; ataque isquêmico transitório (AIT: 26 pacientes e controles: 59. O início do AVC ou AIT era até 30 dias da inclusão no estudo. A ateromatose carotídea foi diagnosticada por ultrassonografia com Doppler. Os pacientes com risco cárdio-embólico ou sem evidência de aterotrombose foram excluídos. Foram estabelecidas comparações entre os 3 grupos e dentro de cada grupo, formado sub-grupos de acordo com diferentes idades, território arterial comprometido e fatores de risco. A detecção da bactéria foi feita por reação de polimerização em cadeia. RESULTADOS: Somente um paciente, pertencente ao grupo controle, teve resultado positivo. CONCLUSÃO: Estes achados não sugerem que a C. pneumoniae

  2. Ischemic stroke in children: a study of the associated alterations Acidente vascular cerebral isquêmico na infância: estudo das alterações associadas

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    Josiane Ranzan

    2004-09-01

    Full Text Available Arterial ischemic stroke (AIS in children is a relatively rare disease, not yet clearly understood and with a multifactored etiology. It can cause a severe impact on the child and be the first manifestation of a systemic disease. Delayed diagnosis is still common and research on the subject in our field practically does not exist. Prothrombotic disorders have been described as important causative factors of the ischemic event in children. Forty-six patients from zero to 18 years of age diagnosed with AIS were studied in the period between March 2002 and September 2003. Laboratory tests were realised including coagulation proteins and echocardiogram. AIS of the newborn occurred in 37% of the cases. Focal seizures and hemiparesis were the most frequent symptoms; 40% of the patients presented prior pathologies. Abnormalities of the S and C proteins occurred in 22% and 17%. Associated alterations, particularly those that generate a hypercoagulability state, indicate more than one risk factor for this disease in childhood.Acidente vascular cerebral Isquêmico (AVCI na infância é relativamente raro, de conhecimento ainda obscuro, e com etiologia multifatorial. Pode causar grave impacto na criança e ser a primeira manifestação de doença sistêmica. O subdiagnóstico ainda é comum e são praticamente inexistentes as pesquisas sobre o assunto no nosso meio. Desordens protrombóticas têm sido descritas como importantes fatores causais do evento isquêmico na infância. Foram estudados 46 pacientes de zero a 18 anos, com diagnóstico de AVCI, no período de março/2002 a setembro/2003. Exames laboratoriais, incluindo proteínas de coagulação e ecocardiograma foram realizados. AVCI neonatal ocorreu em 35% dos casos. Crise focal e hemiparesia foram os sintomas iniciais mais freqüentes; 40% dos casos apresentaram patologia prévia. Anormalidades nas proteínas S e C ocorreram em 22% e 17% da amostra. Alterações associadas, principalmente as que

  3. Characteristic pattern of cerebral perfusion in patients with the early stage of subcortical vascular dementia compared with Alzheimer's disease

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Young Jin; Kang, Do Young; Park, Kyung Won; Cheon, Sang Myung; Kim, Jong Kuk; Kim, Jae Woo [Dong-A University School of Medicine, Busan (Korea, Republic of)

    2004-07-01

    Brain perfusion SPECT has been commonly used to evaluate several different types of dementia. The aim of this study is to assess the specific patterns of regional cerebral blood flow (rCBF) in patients with the early stage of subcortical vascular dementia (SVD) and Alzheimer's disease (AD) using Tc-99m HMPAO SPECT, and to compare the differences between the two conditions. Sixteen SVD (mean age; 68.0{+-}7.0 years, educational period; 6.3{+-}5.6 years, CDR; 0.80{+-}0.26). 46 AD (mean age; 69.9{+-}7.4 years, educational period; 5.4{+-}4.7 years, CDR; 0.86{+-}0.23) and 12 normal control subjects (mean age; 67.1{+-}7.7 years, educational period; 6.2{+-}4.2 years) participated in this study. We included the patients with SVD and AD according to NINCDS-ADRDA criteria for probable AD and NINDS-AIREN criteria for probable or possible VD. They were all matched for age, education and clinical dementia scale scores. SPM analysis of the SPECT image showed significant perfusion deficits on the right temporal region and right thalamus, left insula and superior temporal gyrus, both cingulate gyri and frontal subgyral regions in patients with SVD and on the left supramarginal gyrus, superior temporal gyrus, postcentral gyrus and inferior parietal lobule, right fugiform gyrus and both cingulate gyri in patients with AD compared with control subjects (uncorrected p<0.01). SVD patients revealed significant hypoperfusion in the right parahippocampal gyrus, right cingulated gyrus, left insula, and both frontal subgyral regions compared with AD patients (uncorrected p<0.01). SVD patients revealed significant hyperperfusion in right superior frontal gyrus, left pre- and postcentral gyri, left paracentral lobule, left precuneus and both medial frontal gyri compared with AD patients (uncorrected p<0.01). Our study shows characteristic and different pattern of perfusion deficits in patients with SVD and AD, and these results may be helpful to discriminate the two conditions in the

  4. Diabetes y Enfermedad Coronaria

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    Alfredo Jácome Roca

    1997-06-01

    Full Text Available

    La Diabetes Mellitus es un síndrome con etiología multifactorial y con variadas expresiones en la clínica y en las complicaciones. Las formas más comunes son la diabetes tipo 11 o diabetes no insulino dependiente (DMNID y la tipo 1 (antigua juvenil o insulino-dependiente (DMID. Las más notables diferencias entre la frecuencia e intensidad de sus manifestaciones clínicas y complicaciones así como de su etiología son muy conocidas pero las anotaremos a manera de repaso.

    En la DMID o tipo 1 (la menos frecuente al menos dos genes localizados en el sistema HLA, región de antígenos de histocompatibilidad en el brazo corto del cromosoma 6, aumentan el riesgo. Se observa la presencia en el haplotipo de los antígenos B8/BWI5 y DW3/DW4. Posteriormente un virus (paperas, sarampión, mononucleosis, Cocksakie B desencadenarían una destrucción autoinmune de islotes!.

    En la DMNID o tipo II influyen la herencia y la obesidad como factores más notorios. Como en la DMID la producción de insulina es cerca a cero o cero, hay mayor tendencia a hiperglicemias marcadas, coma diabético y complicaciones microvasculares (nefropatía, retinopatía y neuropatía, pero también pueden haber complicaciones “macrovasculares” o aterogénicas, como enfermedad coronaria y arterioesclerosis periférica. La DMNID o tipo 11 presenta mayor incidencia de la última clase de complicaciones y menos de las primeras y generalmente hay “hiperinsulinemia” y obesidad asociadas. Los tipo 1generalmente mueren de falla renal y ciegos mientras los de tipo 11 mueren de infarto

    Como noticias recientes en diabetes, se ha comprobado que el control estricto de la hiperglicemia (manifestado por normalización de la hemoglobina glicosilada Al en la diabetes tipo 1previene o retarda la presencia de complicaciones microvasculares; esto se logra con un manejo intensivo, que incluye también uso intensivo de regímenes de insulina.

    Pero ¿qué pasa con la

  5. [Cerebral protection].

    Science.gov (United States)

    Cattaneo, A D

    1993-09-01

    metabolic standpoint, exposure to isoflurane at concentration of 2 MAC is credited with providing the same potential for protection as high dose barbiturate (isoelectric EEG). A possible major difference between barbiturates and isoflurane is the modest cerebral vasodilation induced by the latter while barbiturates are associated with decreased CBF. This suggests that in focal ischemia isoflurane may elicit an intracerebral steal. 3) Calcium entry blockers. Some calcium entry blockers with the distinctive feature of acting preferably on cerebral as opposed to systemic vascular smooth muscles may exert beneficial effects during or after brain ischemia. Two such drugs which have shown promise are nimodipine and lidoflazine. In animal and human studies nimodipine has been reported to improve the neurologic outcome of both the cerebral vasospasm and the postischemic hypoperfusion state.(ABSTRACT TRUNCATED AT 400 WORDS)

  6. Enfermedades de notificación obligatoria

    OpenAIRE

    Instituto Nacional de Salud

    2009-01-01

    Artículo online Presenta datos estadísticos de Enfermedades inmunoprevenibles como: Rubéola y sarampión, Tos ferina, Influenza A H1N1; Enfermedades transmitidas por vectores como: Dengue, Fiebre amarilla, Enfermedad de Carrión, Leismaniosis; Enfermedades zoonóticas como: Rabia animal y por último enfermedades de Transmisión sexual como: VIH - SIDA

  7. Enfermedades de notificación obligatoria

    OpenAIRE

    Instituto Nacional de Salud

    2011-01-01

    Presenta datos estadísticos de las enfermedades inmunoprevenibles como: Rubéola y sarampión, Tos ferina, Influenza A H1N1; enfermedades transmitidas por vectores como: Dengue, Fiebre amarilla, Enfermedad de Carrión, Leismaniosis; enfermedades zoonóticas como: Rabia animal y Rabia humana y por último enfermedades de Transmisión sexual como: VIH - SIDA

  8. Enfermedades de notificación obligatoria

    OpenAIRE

    Instituto Nacional de Salud

    2010-01-01

    Artículo online Presenta datos estadísticos de Enfermedades inmunoprevenibles como: Rubéola y sarampión, Tos ferina, Influenza A H1N1; Enfermedades transmitidas por vectores como: Dengue, Fiebre amarilla, Enfermedad de Carrión, Leismaniosis; Enfermedades zoonóticas como: Rabia animal y Rabia humana y por último enfermedades de Transmisión sexual como: VIH - SIDA

  9. La mortalidad por enfermedades del corazón y por reumatismo en la ciudad de bogotá

    OpenAIRE

    Bejarano, Jorge

    2012-01-01

    La alta cifra de mortalidad por enfermedades cardio-vasculares está indicando la urgencia de una campana para contener sus avances. De todas las adquisiciones sanitarias, ninguna ha tenido el alcance y los resultados admirables de los centros o dispensarios destinados al tratamiento de una enfermedad y a la educación del enfermo. Nadie podrá pues, dudar que los dispensarios o consultorios de enfermedades cardio-vasculares, sea una de las armas más eficaces en la lucha contra la mortalidad por...

  10. Reabilitação de déficits comunicativos pós-acidente vascular cerebral Rehabilitation of post-stroke communication impairments

    Directory of Open Access Journals (Sweden)

    Gigiane Gindri

    2012-01-01

    Full Text Available Os processamentos comunicativos discursivo, léxico-semântico, pragmático-inferencial e/ou prosódico podem apresentar-se deficitários após um acidente vascular cerebral. Esses prejuízos demandam métodos e programas de intervenção para uma reabilitação efetiva da comunicação. Neste contexto, o objetivo desta revisão sistemática foi identificar e descrever métodos utilizados para reabilitação neuropsicológica da comunicação de adultos acometidos por lesão cerebrovascular, mais especificamente, abordagens sistematizadas de intervenção para cada um dos processamentos comunicativos. Foram avaliados resumos publicados nos últimos dez anos na base de dados PubMed, utilizando palavras-chave relacionadas aos construtos reabilitação, acidente vascular cerebral (AVC e comunicação. Para o construto comunicação foram utilizadas, ainda, palavras específicas dos quatro processamentos comunicativos. Inicialmente, foram encontrados 914 abstracts, dos quais, após exclusão dos repetidos, 460 foram analisados. Os critérios de inclusão de abstracts para análise de seus textos completos foram ser estudo empírico, ter a participação de pelo menos um indivíduo adulto pós-AVC, tratar de reabilitação da comunicação, apresentar intervenção para pelo menos um dos quatro processamentos comunicativos, ter avaliação pré e pós-tratamento, estar escrito em inglês, francês ou português, e ter sido publicado nos últimos dez anos. Apenas quatro artigos empíricos cumpriram tais critérios, sendo conduzidos predominantemente com adultos afásicos ou com aprosódia. Assim, tais achados podem ser considerados surpreendentes e alarmantes frente à escassez de estudos sistemáticos de reabilitação de componentes comunicativos. Ressalta-se a necessidade de descrição detalhada de procedimentos de intervenção com objetivos específicos para que estudos possam ser replicados, contribuindo também para a verificação do efeito

  11. Effects on cerebral circulation of decimeter wave therapy and variable magnetic field in patients with hemiparesis of vascular and traumatic origin

    Energy Technology Data Exchange (ETDEWEB)

    Strelkova, N.I.; Gavrilkov, A.T.; Dyuzhilova, N.F.; Strel' tsova, Ye.N.

    1981-08-01

    Both the artherosclerotic process in the case of cerebrovascular accident and cerebral trauma lead to impairment of cerebral hemodynamics, blood and spinal fluid circulation, macroscopic and microscopic disturbances. Electromagnetic waves in the decimeter range (decimeter waves - DMW) and a variable magnetic field (VMF) were used to treat these processes. Treatment was delivered directly to the region of the cerebral lesion, on the basis of the penetrating capacity of DMW and VMF to a relatively great depth (7 to 9 and 4 to 7 cm, respectively). Results of these treatments are discussed.

  12. Prevalência e correlatos de doença vascular no exame de ultrassom em pacientes em hemodiálise Prevalencia y correlatos de enfermedad vascular en el examen de ultrasonido en pacientes en hemodiálisis Prevalence and correlates of vascular disease at ultrasound examination in patients on hemodialysis

    Directory of Open Access Journals (Sweden)

    Sebastião Baptista Miguel

    2011-04-01

    % eran diabéticos. EIM > 0,9mm fue encontrada en 57% de los casos y calcificaciones arteriales en la US en 48%. Envejecimiento (décadas y tabaquismo estaban asociados a aumento de la EIM (odds ratio ajustado [aOR] = 3,4, p BACKGROUND: Patients on hemodialysis present an increased risk of cardiovascular death. Intimal media thickness (IMT and presence of arterial calcifications are well-known risk factors for cardiovascular death in hemodialysis patients. OBJECTIVE: To assess the prevalence of IMT and arterial calcifications in HD patients and to correlate image findings with clinical and laboratory data. METHODS: Cross-sectional study involving 75 patients on dialysis for >12 months. Patients underwent B-mode ultrasound scan (US for determination of IMT of the distal third of the common carotid arteries. Arterial calcifications were assessed by US of carotids, femoral and tibial arteries, and labeled positive if calcification was found in any arterial site. RESULTS: Patients were 52±13 years old, 57% were males and 16% were diabetics. IMT > 0.9 mm was found in 57% of cases and arterial calcifications at US in 48%. Aging (decades and smoking were associated with both increased IMT (adjusted odds ratio [aOR] = 3.4, p < 0.001; aOR = 4.4, p = 0.045, respectively and presence of vascular calcifications (aOR = 3.0, p < 0.001; aOR = 6.8, p = 0.011, respectively. High intact parathyroid hormone levels (per each 100 pg/ml were significantly associated with increased IMT (aOR = 1.7, p = 0.021, but not with vascular calcification. In contrast, Diabetes and time on dialysis (years were significant determinants for calcifications at US (aOR = 15.0, p = 0.009; aOR = 1.39, p = 0.020, but not for increased IMT. CONCLUSION: Increased IMT and calcifications at US are common findings in hemodialysis patients. Aging and smoking are consistent determinants for both image alterations. Parathyroid hormone elevation is associated with increased IMT. Diabetes and time on dialysis

  13. Enfermedad de Hirschsprung

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    Gonzalo López Escobar

    1990-04-01

    Full Text Available

    Definición
    La enfermedad de Hirschsprung, megacolon congénito o agangliónico, o Aganglionosis Intestinal Congénita, es una anomalía caracterizada por la ausencia congénita de células ganglionares del sistema parasimpático de los piejos intermientéricos de Auerbach, situado entre las capas musculares, circular y longitudinal, y el submucoso de Meissner; con conducción inefectiva del peristaltismo, ocasionando obstrucción funcional (24, 37, 65, 82, 120, 130, 134.

    Historia
    La descripción del megacolon congénito fue hecha por e! pediatra danés, HARALD HIRSCHSPRUNG, en 1886, en el Congreso de Pediatría de Berlín, donde describió dos casos, un niño de 7, Y otro de II meses de edad, quienes murieron, y al practicar la autopsia observó “dilatación enorme del colon”, con fecalomas en su interior y ulceraciones de la mucosa. Su informe apareció en la literatura médica un año después, en 1887.

    Sin embargo, la prime¡a anotación de esta alteración se le asigna a FREDERICK RUYSCH, quien en 1691, publicó en Amsterdam, en la Revista “Observationum AnatomiciChirurgicarum Centuria”, la descripción de la autopsia de una niña de cinco años quien había sido tratada por dolor y distensión abdominal, y flatos, finalmente murió; al abrir el cadáver pudo apreciar “todas las vísceras abdominales cubiertas por el colon distendido desde el recto”, descartó lo demás por considerarlo normal. (67, 129.

    En 1825, Parry hizo la primera descripción en la literatura inglesa, de un joven de 23 años quien sufría de estreñimiento. (69, 129.

    En 1829, Billar, informó dos casos similares.

    En 1867, Lewitt, en Ann Arbor, Michigan, informó el primer caso en la literatura americana, de un joven de 21 años, con dolores abdominales y distensión, y al practicar el tacto anal encontró gran masa que ocupaba toda la pelvis, al parecer un fecaloma. (129.

  14. El anisakis y sus enfermedades como enfermedad profesional

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    José Manuel Vicente Pardo

    Full Text Available El anisakis es un parásito complejo de los animales marinos. El hombre no es el hospedador adecuado, ya que en él la larva L3 no puede completar su ciclo vital, siendo por tanto un hospedador accidental u ocasional, que se interpone en el ciclo vital del nemátodo, y al que el anisakis le puede causar tanto la parasitación como la alergia, cuando ingiere pescado o cefalópodos crudos o poco cocinados: tales como sushi, sashimi, ceviche gravlax noruego, lomi-lomi hawaiano, así como pescados en escabeche, vinagre, desecado, ahumados, semiconservas, o en salazón que contengan este parásito en su forma de larva en estadio tres L3. Las enfermedades por anisakis constituyen un problema de salud pública, generalizado y que ha aumentado su incidencia en los últimos años. En 2012, se notificaron 20.000 casos de anisakiasis en todo el mundo. España es el segundo país con mayor número de intoxicaciones por Anisakis después de Japón. Diversos estudios en España sobre la prevalencia de la sensibilización reflejan una elevada prevalencia entre pacientes que han sufrido episodios de reacciones alérgicas. El 50 por ciento de quienes manipulan directamente el pescado presentan sensibilidad a anisakis. Siendo por tanto cada vez más común la afectación por y en el desarrollo del trabajo, constituyendo entonces procesos considerados como enfermedad profesional cuando se dan las circunstancias determinantes causales de trabajo, riesgo y exposición que para ello deben concurrir. La afección puede presentarse tanto por contacto laboral como por contacto en el consumo ordinario de pescado infestado, lo que hará difícil el estimar como causa exclusiva o consecuente la aparición de la enfermedad a consecuencia del desempeño del trabajo. Los sectores laborales de riesgo por enfermedades por anisakis, son los pescadores, pescaderos ("pescateros" y cocineros. En general todos aquellos que trabajan tanto en la captura, limpieza, manipulación, venta

  15. Uso incorreto de medicamentos por pacientes após acidente vascular cerebral Uso incorrecto de medicamentos por pacientes después de un accidente cerebro vascular Incorrect use of medicines by patients post cerebrovascular accident

    Directory of Open Access Journals (Sweden)

    Lolita Dopico da Silva

    2011-07-01

    Full Text Available Objetivo. Avaliar o emprego de medicamentos no lar pelos pacientes vítimas de um acidente vascular cerebral (AVC. Metodologia. Estudo transversal de uma mostra representativa de 30 pacientes que recebiam atendimento público domiciliário no Rio de Janeiro (Brasil em 2008. Por meio de entrevista estruturada aos pacientes se tomou informação sobre os fatores de risco para AVC, os medicamentos que estavam tomando e o uso correto ou incorreto dos mesmos, utilizando para isto a classificação de DRUGDEX® System. Resultados. Os participantes de idade avançada e com predomínio de mulheres. A média de medicamentos por foi 3.3. As causas do erro mais comuns foram: a tomada do medicamento com alimentos e com outras medicações. As proporções mais altas de uso incorreto de medicamento em mais de 50% das doses foram: espironolactona, glibenclamida e atenolol (a cada uma com 100.0%, sinvastatina (87.5%, furosemida (83.3%, captropril (72.5% e insulina NPH (66.7%. Conclusão. Uma grande proporção de pacientes depois de um AVC usam incorretamente os medicamentos prescritos para o tratamento no lar.Objetivo. Evaluar el empleo de medicamentos en el hogar por los pacientes víctimas de un accidente cerebrovascular (ACV. Metodología. Estudio transversal de una muestra representativa de 30 pacientes que recibían atención pública domiciliario en Río de Janeiro (Brasil en 2008. En la muestra predominaron las mujeres y los pacientes de edad avanzada. Por medio de entrevista estructurada a los pacientes se tomó información sobre los factores de riesgo para ACV, los medicamentos que estaban tomando y el uso correcto o incorrecto de los mismos, utilizando para esto la clasificación de DRUGDEX® System. Resultados. El promedio de medicamentos por fue 3.3. Las causas más comunes de error fueron la toma del medicamento con alimentos y con otras medicaciones. Las proporciones más altas de uso incorrecto de medicamento en más del 50% de las dosis

  16. Cerebral infarcts resulting from trauma

    International Nuclear Information System (INIS)

    Busch, G.

    1985-01-01

    Vascular occlusions due to cerebral trauma have always been regarded as great rarities. However, we have found hypo-dense foci of vascular distribution in 3.5% of 3500 CT examinations for trauma during the late phase. Lesions in the vascular territory of the posterior cerebral artery are usually the result of supratentorial pressure rise from epidural and subdural haematomas, leading to compression of the vessels against the edge of the tentorium. Typical infacts in the territory of the medial and anterior cerebral arteries were found only rarely by CT after cerebral trauma. Infarcts at the watersheds between the three vascular territories were found with surprising frequency and small infarcts were found in the basal ganglia. It is assumed that these were due to ischaemic or hypoxic events due to cardiac or pulmonary complications during the initial phase. (orig.) [de

  17. Enfermedad de Chagas en Nicaragua

    Directory of Open Access Journals (Sweden)

    Carlos N. Talavera - López

    2008-04-01

    Full Text Available LA ENFERMEDAD DE CHAGAS ES UN PROBLEMA DE SALUD pública en toda Latinoamérica; alrededor de 20 millones de personas están infectadas y 200 millones están en riesgo de contraer la enfermedad. En 2006, la prevalencia en Centroamérica era del 7%. Actualmente no existe vacuna contra el protozoo y el tratamiento disponible resulta, aparte de poco efectivo, muy tóxico para el paciente. Los programas de control de vectores han ayudado a reducir los índices de infestación en Latinoamérica, pero aún falta mucho por hacer. En Nicaragua, la enfermedad de Chagas está subvalorada y los trabajos publicados son muy pocos. Es necesario investigar sobre esta enfermedad en nuestro país con otro enfoque, uno que no subvalore la enfermedad y ayude a desarrollar métodos diagnósticos y posibles tratamientos. Este artículo recopila información sobre los trabajos realizados porlos grupos más importantes de investigación en Chagas de Nicaragua en cuanto a epidemiología, control vectorial, diagnóstico y caracterización molecular.

  18. Função vestibular no acidente vascular cerebral do território carot��deo Vestibular function in carotid territory stroke patients

    Directory of Open Access Journals (Sweden)

    Anna Paula Batista de Ávila Pires

    2013-02-01

    Full Text Available Pacientes após Acidente Vascular Cerebral (AVC podem apresentar sintomas otoneurológicos. OBJETIVO: Avaliar a função vestibular de pacientes com antecedente pessoal de AVC no território carotídeo. Desenho científico: estudo de coorte histórica com corte transversal. MÉTODO: Quarenta pacientes foram submetidos à anamnese, exame otorrinolaringológico, Dizziness Handicap Inventory e vectoeletronistagmografia. RESULTADOS: Anormalidades discretas dos movimentos sacádicos foram encontradas em 20 pacientes (50,0%; nove referiram desequilíbrio e um tontura. O ganho do rastreio pendular foi anormal em 17 casos (42,5%; seis referiram desequilíbrio e um tontura. Preponderância direcional anormal do nistagmoperrotatório ocorreu em dois casos (5,0%, que referiram desequilíbrio. A prova calórica identificou três casos (7,5% com predomínio labiríntico anormal e dois (5,0% com preponderância direcional anormal do nistagmo; os cinco casos relataram desequilíbrio. Dos 11 pacientes que não referiram manifestações de alteração do equilíbrio corporal, 10 apresentaram alterações nos movimentos sacádicos e no rastreio pendular e um apresentou exame vestibular normal. CONCLUSÃO: Pacientes com antecedente pessoal de AVC no território carotídeo podem apresentar tontura ou desequilíbrio corporal e sinais de comprometimento da motilidade ocular e da função vestibular.Stroke patients may present otoneurological symptoms. OBJECTIVE: To assess the vestibular function of subjects with a history of carotid territory stroke. METHOD: This historical cohort cross sectional study enrolled 40 patients; subjects answered the Dizziness Handicap Inventory, were interviewed and submitted to ENT examination and vectorelectronystagmography. RESULTS: Mild saccadic movement anomalies were seen in 20 patients (50.0%; nine complained of imbalance and dizziness. Abnormal smooth pursuit gain was seen in 17 cases (42.5%; six subjects reported imbalance and

  19. Sobrecarga dos cuidadores de idosos com acidente vascular cerebral Sobrecarga de los cuidadores de ancianos con accidente cerebrovascular Burden on caregivers of elderly victims of cerebrovascular accident

    Directory of Open Access Journals (Sweden)

    Roberta Amorim Pereira

    2013-02-01

    Full Text Available O objetivo deste estudo foi avaliar a sobrecarga dos cuidadores de idosos com acidente vascular cerebral (AVC, assim como correlacioná-la com as horas de cuidado, a idade e a independência funcional dos idosos. Trata-se de estudo transversal feito com 62 idosos com AVC e seus cuidadores. O instrumento continha variáveis sociodemográficas e econômicas, Mini-Exame do Estado Mental, Medida da Independência Funcional (MIF e a Escala de Zarit. A possível correlação entre os escores da escala de Zarit e as outras variáveis foi avaliada por meio do Coeficiente de Correlação de Pearson. A maioria dos cuidadores era adultos, filhos, casados e do sexo feminino. A média do escore de Zarit foi 34,92 (15,8. A MIF apresentou correlação negativa com a sobrecarga do cuidador, porém, não houve correlação com a idade e as horas de cuidado. A sobrecarga da maioria dos cuidadores variou de moderada a severa e parece estar relacionada ao nível de independência funcional dos idosos.Se objetivó evaluar la sobrecarga de cuidadores de ancianos con accidente cerebrovascular (ACV, y correlacionarla con horas de cuidado, edad e independencia funcional de los ancianos. Estudio transversal con 62 ancianos con ACV y sus cuidadores. El instrumento contenía variables sociodemográficas y económicas, Mini-Examen del Estado Mental, Medida de la Independencia Funcional (MIF y la Escala de Zarit. La posible correlación entre los puntajes de la escala de Zarit y las otras variables fue evaluada por Coeficiente de Correlación de Pearson. La mayoría de los cuidadores eran adultos, hijos, casados y de sexo femenino. El promedio de puntaje de Zarit fue 34,92 (15,8. La MIF presentó correlación negativa con la sobrecarga del cuidador, sin embargo no hubo correlación con edad y horas de cuidado. La sobrecarga de la mayoría de los cuidadores varió entre moderada y severa, y parece relacionarse con el nivel de independencia funcional del anciano.The aim was to

  20. Genetic modification of cerebral arterial wall: implications for prevention and treatment of cerebral vasospasm.

    Science.gov (United States)

    Vijay, Anantha; Santhanam, R; Katusic, Zvonimir S

    2006-10-01

    Genetic modification of cerebral vessels represents a promising and novel approach for prevention and/or treatment of various cerebral vascular disorders, including cerebral vasospasm. In this review, we focus on the current understanding of the use of gene transfer to the cerebral arteries for prevention and/or treatment of cerebral vasospasm following subarachnoid hemorrhage (SAH). We also discuss the recent developments in vascular therapeutics, involving the autologous use of progenitor cells for repair of damaged vessels, as well as a cell-based gene delivery approach for the prevention and treatment of cerebral vasospasm.

  1. La prevención primaria con aspirina de enfermedades cardiovasculares en personas diabéticas. Revisión de las pruebas disponibles

    Directory of Open Access Journals (Sweden)

    Carmen Maciá Bobes

    2006-01-01

    Full Text Available El beneficio del tratamiento con aspirina en la reducción del riesgo de infarto de miocardio, accidente vascular cerebral y muerte de origen vascular, está bien documentado en personas con enfermedad cardiovascular previa, incluido el subgrupo portador de una diabetes mellitus. Sin embargo el papel de la aspirina en prevención primaria es menos claro y objeto de discusión: los resultados de los ensayos clínicos disponibles no son consistentes, aunque los meta-análisis son favorables en algunos aspectos. Parece existir una disparidad entre el tipo de beneficio (cuando se observa y el sexo. Y en particular los resultados son contradictorios en personas diabéticas, las cuales representan un pequeño porcentaje de la muestra de población incluida en los estudios. A pesar de esto, la American Diabetes Association desde 1997, y otras sociedades científicas (incluidas varias españolas desde tiempos más recientes, recomiendan el uso de aspirina a dosis bajas en prevención primaria en todo paciente diabético mayor de 40 años, tipo 1 o tipo 2; y en todos los menores de 40 y mayores de 21 años que presenten otro factor de riesgo cardiovascular, además de la diabetes (antecedentes familiares de enfermedad vascular, hipertensión arterial, tabaquismo, dislipidemia o albuminuria. En este trabajo se revisan los resultados de los ensayos clínicos randomizados y controlados sobre la prevención cardiovascular primaria con aspirina, en los que se podrían apoyar las directrices oficiales de la American Diabetes Association, y se llega a la conclusión de que no existen actualmente pruebas científicas suficientes para sostenerlas.

  2. Cerebral aneurysms – an audit

    African Journals Online (AJOL)

    Enrique

    Abstract. We performed an audit to determine the profile of cerebral aneurysms at the Universitas Hospital Bloem- fontein, the only government hospital with a vascular suite in the Free State and Northern Cape area. Two hun- dred and twenty-three government patients, diagnosed with cerebral aneurysms during the period.

  3. Intervenção fonoaudiológica e fisioterapêutica em uma mulher após acidente vascular cerebral isquêmico = Speech therapy and physiotherapy intervention in a woman after ischemic stroke

    Directory of Open Access Journals (Sweden)

    Rosa, Tábada Samantha Marques

    2015-01-01

    Full Text Available Objetivos: Relatar um caso em que houve intervenção conjunta entre fonoaudiólogo e fisioterapeuta na reabilitação de uma paciente com acidente vascular cerebral isquêmico. Descrição do caso: Paciente de 48 anos de idade, sexo feminino, acometida por acidente vascular cerebral do tipo isquêmico, há sete meses. Apresentou-se com disartrofonia e alterações do sistema estomatognático e sua funcionalidade, comprometimento sensorial, parestesia da mão direita, diminuição da coordenação motora grossa e fina em ambos os membros superiores, dificuldade na preensão palmar e fraqueza da musculatura intrínseca da mão direita, diminuição da consciência corporal e da propriocepção. Foi submetida a 12 sessões com a periodicidade de uma vez por semana de tratamento fonoterápico e fisioterapêutico. Após as intervenções a paciente apresentou aumento dos tempos máximos de fonação; melhora da coordenação pneumofonoarticulatória, da qualidade vocal e do foco de ressonância vertical; adequação e modulação da loudness; modulação do pitch; melhora da coordenação motora grossa e fina, da sensibilidade tátil e dolorosa, da oposição dos dedos, da preensão palmar, da consciência corporal, da propriocepção e da postura corporal global; e aumento da força muscular dos membros superiores. Conclusões: A intervenção interdisciplinar da fonoaudiologia e fisioterapia proporcionou benefícios à paciente acometida por acidente vascular cerebral isquêmico, sendo que a mesma voltou a exercer sua atividade profissional e suas atividades de vida diária com efetividade e melhorou a comunicação com seus familiares

  4. Bem-estar subjetivo e senso de ajustamento psicológico em idosos que sofreram acidente vascular cerebral: uma revisão Subjective well being and perceived psychological adjustment among old people affected by stroke: a review

    Directory of Open Access Journals (Sweden)

    Dóris Firmino Rabelo

    2006-08-01

    Full Text Available Foi feito um levantamento dos estudos brasileiros e estrangeiros publicados entre 1996 e 2005 que relacionavam bem-estar subjetivo, senso de ajustamento psicológico e acidente vascular cerebral, com o objetivo de identificar variáveis mediadoras dessa relação em idosos. Estudos transversais e prospectivos indicaram que os afetados por acidente vascular cerebral apresentam menor bem-estar subjetivo quando comparados com a população geral. Boa capacidade cognitiva, suporte social efetivo, continuidade de uma ocupação produtiva, manutenção da competência em atividades instrumentais de vida diária e humor positivo são fatores que podem melhorar o bem-estar subjetivo e psicológico. Variáveis que podem piorar o bem-estar subjetivo e psicológico são incapacidade funcional, déficits cognitivos, depressão, dificuldade em restabelecer a identidade e restrição à possibilidade de desempenhar atividades e papéis que contribuem para a auto-definição. O conhecimento das implicações psicológicas de sofrer acidente vascular cerebral pode beneficiar pacientes, familiares e profissionais no gerenciamento do evento.We gathered data from Brazilian and foreign studies published between 1996 and 2005 which related subjective well-being, sense of psychological adjustment and stroke. The objective was identifying mediator variables of this relation among old people. Prospective and cross-sectional studies indicated that those affected by stroke showed less subjective well-being than the general population. Good cognitive capacity, effective social support, continuity of a productive occupation, keeping the competence in instrumental activities of daily living and good mood are factors which can affect positively the subjective and psychological well-being. Variables which can affect negatively the subjective and psychological well-being are functional incapacity, cognitive deficits, depression, difficulty in re-establishing the identity and

  5. Disfunção intestinal em pacientes com lesão cerebral decorrente de acidente vascular cerebral e traumatismo craniencefálico: estudo retrospectivo de uma série de casos

    Directory of Open Access Journals (Sweden)

    Cinthia Carlos Dourado

    2012-01-01

    Full Text Available La disfunción del intestino es una queja común entre los pacientes con daño cerebral debido a una lesión cerebral traumática y accidente cerebrovascular. Este estudio tuvo como objetivo investigar la prevalencia de disfunción del intestino (incontinencia y constipación en pacientes con daño cerebral debido a una lesión cerebral traumática y accidente cerebrovascular admitidos para la rehabilitación. Este es un estudio retrospectivo de una serie de casos a partir del análisis de los datos de 138 expedientes de los pacientes ingresados en el primer semestre de 2009. La prevalencia de disfunción del intestino fue de 41%, siendo 33 (24% incontinencia anal y 37 (27%, constipación. El comprometimiento motor, ayuda a la movilidad, cambios en la memoria y la comunicación se asocian con la presencia de la incontinencia anal. La prevalencia de disfunción del intestino es alta en esta población, identificar en forma temprana los factores relacionados, y promover el reentrenamiento intestinal pueden ayudar a mejorar la calidad de sus vidas.

  6. Vascular malformations in pediatrics

    International Nuclear Information System (INIS)

    Reith, W.; Shamdeen, M.G.

    2003-01-01

    Vascular malformations are the cause of nearly all non-traumatic intracranial hemorrhage in children beyond the neonatal stage. Therefore, any child presenting with spontaneous intracranial hemorrhage should be evaluated for child abuse and for vascular malformations. Intracerebral malformations of the cerebral vasculature include vein of Galen malformations, arteriovenous malformation (AVM), cavernomas, dural arteriovenous fistulas, venous anomalies (DVA), and capillary teleangiectasies. Although a few familial vascular malformation have been reported, the majority are sporadic. Clinical symptoms, diagnostic and therapeutic options are discussed. (orig.) [de

  7. Enfermedad trofoblástica gestacional

    Directory of Open Access Journals (Sweden)

    Ariel Labrada Salas

    2014-09-01

    Full Text Available Se presenta un caso con enfermedad trofoblástica gestacional de diagnóstico tardío, que debutó con manifestaciones respiratorias, producidas por metástasis pulmonares. Los datos se obtuvieron de la historia clínica de la paciente y, además, se revisó la literatura. Se trata de una paciente de 23 años de edad, con antecedentes de dos abortos espontáneos recientes, que ingresó por manifestaciones clínicas y radiológicas sugestivas de neumonía de la comunidad, con derrame pleural paraneumónico, siendo tratada con antibióticos de amplio espectro sin respuesta adecuada. Después del ingreso apareció dolor en hipogastrio y se le realizó un ultrasonograma ginecológico, que mostró quistes de ovario bilaterales, y una laparoscopía que informó quiste de ovario con compromiso vascular, por lo que se le practicó histerectomía total. Se determinaron niveles elevados de gonadotropina coriónica humana en sangre. En la tomografía axial computarizada de pulmón se observaron imágenes nodulares en ambos campos pulmonares, de aspecto metastásico. El estudio citológico del líquido pleural fue positivo de células neoplásicas. Se planteó el diagnostico de enfermedad trofoblástica con metástasis pulmonares y se inició quimioterapia con metotrexato, con respuesta favorable

  8. Acidente vascular cerebral hemorrágico associado à acidente ofídico por serpente do gênero bothrops: relato de caso Hemorrhagic stroke related to snakebite by bothrops genus: a case report

    Directory of Open Access Journals (Sweden)

    Amanda Silva Machado

    2010-10-01

    Full Text Available Este trabalho tem como objetivo relatar um caso de acidente vascular cerebral hemorrágico, associado à acidente ofídico por serpente do gênero bothrops e hipertensão arterial sistêmica grave. Apesar do ofidismo botrópico ser frequente no Estado do Pará, tais associações são incomuns, necessitando de uma abordagem especializada e precoce, visando menores complicações.This research reports a clinical case of hemorrhagic stroke due to envenomation by bothrops snakebite associated with severe hypertension. Although bothrops snakebites are frequent in the State of Pará, such associations are uncommon, requiring specialized and early management to avoid severe complications.

  9. BREVE ESTUDO DO ESTADO DA ARTE SOBRE ACIDENTE VASCULAR CEREBRAL E SERIOUS GAMES PARA APLICAÇAO NO PROJETO “AVC” DO NÚCLEO DE TECNOLOGIA ASSISTIVA DA UFS

    Directory of Open Access Journals (Sweden)

    Saulo Lordão Andrade Barros

    2013-03-01

    Full Text Available O Acidente Vascular Cerebral é uma das principais causas de morte e de sequelas no mundo. A doença atinge cerca de 16 milhões de pessoas anualmente, dessas, seis milhões morrem. No Brasil, é a principal causa de morte e incapacidade, gerando impactos econômicos e sociais. O trabalho de recuperação desses pacientes é de suma importância para diminuir os impactos causados. Para isto, o presente artigo traz uma revisão da literatura existente sobre a doença e seu tratamento, com foco na utilização de novas tecnologias, como o uso de jogos eletrônicos sérios, a fim de aprimorar o trabalho de recuperação tanto no âmbito físico quanto no emocional.

  10. Nutrición del Niño con Enfermedades Neurológicas Prevalentes: An Update

    OpenAIRE

    LE ROY O, CATALINA; REBOLLO G, MARÍA JESÚS; MORAGA M, FRANCISCO; DÍAZ SM, XIMENA; CASTILLO-DURÁN, CARLOS

    2010-01-01

    En este artículo se revisan algunas enfermedades neurológicas en donde el manejo nutricional tiene un rol relevante, como son la parálisis cerebral, epilepsia, autismo y síndrome de déficit atencional (SDAH). La nutrición frecuentemente es afectada en niños con parálisis cerebral por factores como la enfermedad de base, la dificultad en ingerir alimentos por alteraciones sensoriales, motoras y/o gastrointestinales y las deficiencias nutricionales específicas relacionadas con la ingesta insufi...

  11. Infarto do miocárdio e acidente vascular cerebral associados à alta temperatura e monóxido de carbono em área metropolitana do sudeste do Brasil Miocardic infarcts and cerebral-vascular accidents associated with high temperature and carbon monoxide in an metropolitan area of Southeastern Brazil

    Directory of Open Access Journals (Sweden)

    Davi Rumel

    1993-02-01

    Full Text Available Muito se tem publicado e discutido acerca de fatores de risco ligados a estilo de vida e a fatores hereditários em Acidente Vascular Cerebral (AVC e Infarto do Miocárdio (IM. Porém o estudo da influência de fatores ambientais como poluição por monóxido de carbono e temperatura na determinação nas ocorrências dessas patologias ainda é pouco discutido em nosso meio. Visando preencher esta lacuna, foi verificada a associação existente entre os valores de temperaturas máximas diárias e valores médio e máximo diários de monóxido de carbono e AVC e IM no Município de São Paulo, SP (Brasil. Foi coletada uma série histórica do número de casos novos de AVC e IM atendidos em Pronto Socorro de um hospital de clínicas e valores de temperatura e monóxido de carbono. Conclui-se que das internações anuais por IM, 2,1% são devidos à poluição atmosférica e 4,9% a altas temperaturas. Das internações anuais por AVC, 2,8% são devidas a altas temperaturas. Não foi identificado associação entre monóxido de carbono e AVC.Many studies have been published about the relationship between life style and genetic risk factors and stroke and heart attack, but there have been few about the relationship between atmospheric pollution, specifically with carbon monoxide, and temperature and stroke and heart attack. With a view to filling this gap the relationship between values of carbon monoxide concentration in the air, maximum and average by day, and maximum temperature by day and the number of new cases of CVA and IM admitted as emergencies at the biggest hospital complex of S. Paulo city was analysed. If was concluded, by the use of multivariable regression analysis, that 2.1% and 4.9% of heart attack admissions were due to carbon monoxide air pollution and high temperature, respectively. 2.8% of stroke admissions were due high temperature. Stroke and carbon monoxide were not associated in this population.

  12. Enfermedad de Chagas en Colombia

    Directory of Open Access Journals (Sweden)

    Fernando Serpa Florez

    1985-12-01

    Full Text Available

    Generalidades.

    La tripanosomiasis americana o enfermedad de Chagas se halla ampliamente distribuida en Centro y Sur América. La Organización Mundial de la Salud considera que pueden haber doce millones de casos de esta dolencia en el continente (1, estudiados principalmente en Argentina, Brasil y Venezuela. Se calcula que en Colombia tendríamos una incidencia muy alta de casos, (Marinkelle (2 estima que 7.140/0 de la población podría estar infectada o sea cerca de dos millones de personas, distribuidos en las zonas rurales del nordeste del país (cuenca del Catatumbo Magdalena Medio y Llanos Orientales (Piedemonte, Macarena y Meta cercano (3 (4 (5 Y que seis millones de nuestros compatriotas -22.30/0 de la población total- (2 corren el riesgo de adquirir la enfermedad pues habitan en regiones donde se dan las condiciones para que ésta se propague.


    RESEÑA HISTORICA DE LA ENFERMEDAD EN COLOMBIA
    La existencia de casos de tripanosomiasis americana y de sus vectores fue comprobada en Colombia desde 1929 cuando César Uribe Piedrahita (6 encontró en Prado, Tolima, vectores del mal infectados con T.

    cruzi e Ignacio Moreno Pérez observó dicho hemoflagelado en sangre de seres humanos en Cali (4. En los años siguientes Hernando Ucrós, Benjamín Otálora, Hernando Groot, Santiago Renjifo, Hernando Osorno, Carlos Duarte Rangel, C.J. Marinkelle, Augusto Corredor, Ernesto Suescún y varios otros investigadores colomb iano s describieron diversos focos de la enfermedad en Colombia y estudiaron la distribución de sus vectores y huéspedes intermediarios. En 1947 1. Caicedo y C. Hernández publicaron su informe sobre los primeros casos crónicos de enfermedad de Chagas comprobados en nuestro país, procedentes de la región de Fusagasugá, Cundinamarca (7 en tanto que, en 1961, Marcos Duque inicia los estudios sobre cardiopatía chagásica (8 y Hernando Rocha, en 1971, comunica

  13. Masaje circulatorio superficial en la enfermedad arterial periférica

    OpenAIRE

    Cebrià Iranzo, M. Àngels

    2010-01-01

    En la enfermedad arterial periférica crónica se indica el masaje circulatorio superficial por producir una vasodilatación refleja en las zonas afectadas. Este masaje manual tiene dos objetivos fundamentales: 1) Favorecer la vasodilatación refleja e hiperemia local; 2) Drenar el retorno vascular sanguíneo y linfático.

  14. Análise de custo-efetividade da trombólise com alteplase no Acidente Vascular Cerebral Análisis de costo-efectividad de la trombólisis con alteplase en el accidente vascular cerebral Analysis of the cost-effectiveness of thrombolysis with alteplase in stroke

    Directory of Open Access Journals (Sweden)

    Denizar Vianna Araújo

    2010-07-01

    Full Text Available FUNDAMENTO: Acidente Vascular Cerebral (AVC é a principal causa de óbito no Brasil e pouca informação está disponível sobre custo do tratamento. OBJETIVO: Elaborar análise de custo-efetividade da trombólise no AVC, até três horas após o início dos sintomas, comparando o tratamento com alteplase versus conservador, sob a perspectiva do Sistema Único de Saúde (SUS. MÉTODOS: Modelo de análise de decisão foi desenvolvido para comparar os dois tratamentos. Ciclos foram considerados, durante os quais pacientes poderiam transitar entre cinco estágios de incapacidade pós-AVC, baseados na escala modificada de Rankin. A probabilidade de apresentar hemorragia intracerebral no primeiro ano foi obtida do ensaio NINDS. Para os anos subsequentes, ciclos de um ano foram considerados, para contabilizar a mortalidade dos pacientes. O desfecho foi expresso em Anos de Vida Ajustados pela Qualidade (QALY. Tanto os custos diretos quanto os indiretos foram considerados na análise. Custos e desfecho foram descontados em 5% ao ano. RESULTADOS: No primeiro ano, o QALY ganho foi de 0,06 para ambos os gêneros, com custo incremental de R$ 2.558 para homens e R$ 2.312 para mulheres. A razão de custo-efetividade incremental em um ano foi de R$ 40.539 / QALY (USD 28.956 para homens e R$ 36.640 / QALY (USD 26.171 para mulheres. Após o segundo ano, o tratamento com alteplase reduziu o custo do tratamento (índice de Paridade do Poder de Compra US$ 1 = R$ 1,4. CONCLUSÃO: Terapia trombolítica com alteplase nas primeiras três horas após o AVC é custo-efetiva no cenário do Sistema Único de Saúde.FUNDAMENTO: Accidente Vascular Cerebral (AVC es la principal causa de óbito en el Brasil y poca información está disponible sobre el costo del tratamiento. OBJETIVO: Elaborar análisis de costo-efectividad de la trombólisis en el AVC, hasta tres horas después del comienzo de los síntomas, comparando el tratamiento con alteplase versus conservador, bajo la

  15. Burden and modifications in life from the perspective of caregivers for patients after stroke Sobrecarga y modificaciones de vida en la perspectiva de los cuidadores de pacientes con accidente vascular cerebral Sobrecarga e modificações de vida na perspectiva dos cuidadores de pacientes com acidente vascular cerebral

    Directory of Open Access Journals (Sweden)

    Huana Carolina Cândido Morais

    2012-10-01

    Full Text Available OBJECTIVE: to analyze the impact that caring has on a member of the family caring for a patient after a cerebrovascular accident, correlating life modifications and mental suffering with the perceived burden. METHOD: a cross-sectional, quantitative study, undertaken in January-April 2010 in Fortaleza, Ceará, Brazil. RESULT: 61 individuals were investigated, monitored by three hospitals' Home Care Program. Data collection was through interviews for identifying life changes, and through the application of three scales for investigating perceived burden, mental state and mental suffering. Respectively these were the Caregiver Burden Scale (CBS, the Mini-Mental State Examination (MMSE and the Self Reported Questionnaire (SRQ. The majority of the carers were female, married, and the children of the stroke patients. The average age was 48.2 years (±12.4. The most-cited life modifications referred to the daily routine, to leisure activities, and to exhaustion or tiredness. Regarding burden, the dimensions of General tension, Isolation and Disappointment stood out. It was ascertained that overload was more severe when the carer presented more symptoms of psychological distress, in the absence of a secondary carer, and when the principal carers reported perceiving changes in their bodies and health. CONCLUSION: an association between burden and the carer's mental state was not observed. Understanding the care, through analysis of the burden and of the knowledge of the biopsychosocial situation will provide support for the nurse's work in reducing the overload for family caregivers.OBJETIVO: analizar el impacto del cuidar para el cuidador familiar de paciente después de accidente vascular cerebral, correlacionando modificaciones de vida y sufrimiento psíquico con la sobrecarga percibida. MÉTODO: estudio transversal, cuantitativo, realizado de enero a abril de 2010, en Fortaleza, Ceará, Brasil. RESULTADO: se investigaron 61 individuos, acompa

  16. Vivendo o acidente vascular encefálico agudo: significados da doença para pessoas hospitalizadas Viviendo el accidente cerebrovascular agudo: significado de la enfermedad para personas hospitalizadas Experiencing acute stroke: the meaning of the illness for hospitalized patients

    Directory of Open Access Journals (Sweden)

    Samia Jardelle Costa de Freitas Maniva

    2013-04-01

    Full Text Available Objetivou-se compreender o significado da experiência vivenciada pela pessoa adoecida por acidente vascular encefálico agudo. Trata-se de estudo qualitativo, fundamentado nos pressupostos teóricos do interacionismo simbólico, realizado em uma unidade especializada no tratamento de acidente vascular encefálico de um hospital terciário, situado na cidade de Fortaleza, CE. Participaram do estudo 10 pacientes. A coleta de dados ocorreu por meio de entrevista aberta e os dados foram organizados e analisados segundo a técnica de enunciação. Cumpriram-se todos os aspectos éticos. O significado da experiência de adoecimento foi construído com base na percepção dos sentimentos surgidos durante a hospitalização, caracterizados por medo da morte e das sequelas da doença; tristeza pelo distanciamento do lar; alívio, ao evidenciar-se melhora do quadro clínico, e desejo de mudança dos hábitos de vida. Apreendeu-se que a experiência de adoecimento por acidente vascular encefálico é complexa, e nela os significados são elaborados com base em sentimentos, ações e comportamentos dos sujeitos.Se objetivó comprender el significado de la experiencia de la persona que padeció accidente cerebrovascular agudo. Estudio cualitativo, fundamentado en los presupuestos teóricos del interaccionismo simbólico, realizado en unidad especializada en tratamiento de accidente cerebrovascular de un hospital terciario en Fortaleza-CE. Participaron diez pacientes. Datos recolectados mediante entrevista abierta, organizados y analizados según técnica de enunciación. Se cumplió con todos los aspectos éticos. El significado de la experiencia del padecimiento fue construido en base a la percepción de los sentimientos surgidos durante la internación, caracterizados por el miedo a la muerte y a las secuelas de la enfermedad; tristeza por alejarse del hogar; alivio al evidenciarse mejoras del cuadro clínico; e intención de cambio de hábitos de vida

  17. Use of decompressive craniectomy in the treatment of hemispheric infarction Uso da craniectomia descompressiva no tratamento do acidente vascular cerebral isquêmico hemisférico

    Directory of Open Access Journals (Sweden)

    José Antonio Fiorot Jr.

    2008-06-01

    Full Text Available Decompressive craniectomy (DC has demonstrated efficacy in reducing mortality in hemispheric infarction of the middle cerebral artery. The aim of our study was to compare the outcome of patients submitted to DC to patients treated in a conservative way. Eighteen patients were submitted to DC and 14 received conservative treatment. Neurological status was assessed by the Glasgow Coma Score and National Institutes of Health Stroke Scale score. Mortality, modified Rankin Scale and Barthel Index scores were assessed at 90 days to evaluate outcome. We did not observe reduction in overall mortality and functional outcome in patients submitted to DC. The differences between our group and previously published series are probably related to the neurological status of the patients at the time of therapeutic decision.Craniectomia descompressiva (CD tem demonstrado eficácia em reduzir a mortalidade em pacientes com infarto hemisférico (IH da artéria cerebral média. Este estudo avaliou o prognóstico dos pacientes submetidos a CD comparando a pacientes com IH tratados de maneira conservadora. Dezoito pacientes foram submetidos a CD e 14 receberam tratamento conservador. Escala de Coma de Glasgow e Escala de AVC do National Institutes of Health foram utilizadas para graduar o déficit neurológico. A mortalidade, bem como os escores obtidos na escala modificada de Rankin e índice de Barthel foram avaliados em 90 dias. Não foi observada redução de mortalidade nos pacientes submetidos a CD. Essa diferença entre os nossos resultados e os estudos publicados previamente se deve, provavelmente, à decisão cirúrgica tardia em pacientes com sinais clínicos de herniação cerebral.

  18. Protein kinase C inhibition prevents upregulation of vascular ET(B) and 5-HT(1B) receptors and reverses cerebral blood flow reduction after subarachnoid haemorrhage in rats

    DEFF Research Database (Denmark)

    Beg, Saema S; Hansen-Schwartz, Jacob A; Vikman, Petter J

    2007-01-01

    with Western blot; only PKCdelta and PKCalpha subtypes were increased after SAH RO-31-7549 treatment abolished this. At 2 days after the SAH basilar and middle cerebral arteries were harvested and the contractile response to endothelin-1 (ET-1; ET(A) and ET(B) receptor agonist) and 5-carboxamidotryptamine (5......-CT; 5-HT(1) receptor agonist) were investigated with a myograph. The contractile responses to ET-1 and 5-CT were increased (Poperated rats. In parallel, the ET(B) and 5-HT(1B) receptor mRNA and protein expression were significantly elevated after SAH, as analysed...

  19. Major Vascular Neurocognitive Disorder: A Reappraisal to Vascular Dementia

    Directory of Open Access Journals (Sweden)

    Emre Kumral

    2017-03-01

    Full Text Available Major vascular neurocognitive disorder (NCD is the second leading form of dementia after Alzheimer’s disease, accounting for 17-20% of all dementias. Vascular NCD is a progressive disease caused by reduced cerebral blood flow related to multiple large volume or lacunar infarcts that induce a sudden onset and stepwise decline in cognitive abilities. Despite its prevalence and clinical importance, there is still controversy in the terminology of vascular NCD. Only after the release of Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5 (2013 did the American Psychiatric Association define vascular dementia as “major vascular NCD”. This review includes an overview of risk factors, pathophysiology, types, diagnostic and clinical features of major vascular NCD, and current treatment options of vascular NCD regarding to DSM-5 criteria

  20. Enfermedad, lenguaje y vida animal

    Directory of Open Access Journals (Sweden)

    Miguel Martínez García

    2017-07-01

    Full Text Available En este artículo planteamos una aproximación crítica a la «cuestión animal» desde la perspectiva de la enfermedad. El problema de la «animalidad», en efecto, y de su relación con lo humano, constituye un problema clave en las experiencias modernas de «lo patológico». Es frecuente, ciertamente, que en un contexto de enfermedad grave o ante un proceso patológico agudo se produzca un efecto de acercamiento o de asimilación entre el sujeto enfermo y el animal. En la mayoría de los casos, dicha animalización está íntimamente relacionada con el discurso y la práctica médica. Sin embargo, creemos que «lo animal» está irrumpiendo también de otro modo en nuestras experiencias de enfermedad. Para entender esta irrupción, creemos que es adecuado volver a recurrir a la idea del «devenir animal» de Deleuze. Con esta herramienta, nos enfrentamos a un corpus de textos literarios recientes en los se aprecia un «devenir animal» del enfermo que contesta a los procesos de animalización ligados a la clínica. El «devenir animal» del enfermo se materializa específicamente, en estos casos, en relación con un particular «devenir animal de la lengua».

  1. Atresia biliar: una enfermedad grave

    OpenAIRE

    Ramonet, Margarita; Ciocca, Mirta; Alvarez, Fernando

    2014-01-01

    La atresia biliar es una grave enfermedad que se manifiesta en los recién nacidos, y se desconoce su causa. La inflamación y destrucciónprogresiva de los conductos biliares conducen a la aparición de ictericia, coluria y acolia entre la segunda y sexta semana de vida. Como existen múltiples causas de colestasis neonatal en esta etapa de la vida, es necesario realizar un diagnóstico y derivación precoz para ofrecer un tratamiento quirúrgico, con el fin de restablecer el flujo biliar. Alrededor...

  2. Principales enfermedades bucodentales en embarazadas

    OpenAIRE

    Méndez de Varona, Yuliet B; Batista Sánchez, Tamara; Peña Marrero, Yamilet; Torres Acosta, Raúl

    2016-01-01

    Introducción: el embarazo constituye un proceso natural que provoca una serie de cambios fisiológicos, patológicos y psicológicos que las convierten en pacientes especiales que demandan cuidados exclusivos. Objetivo: determinar las principales enfermedades bucodentales que afectan a las embarazadas del Policlínico Pedro Díaz Coello. Métodos: Se realizó un estudio transversal de enero de 2014 a enero de 2015 en el Policlínico Pedro Díaz Coello de Holguín a un total de 395 embarazadas que acudi...

  3. Comparison of MEK/ERK pathway inhibitors on the upregulation of vascular G-protein coupled receptors in rat cerebral arteries

    DEFF Research Database (Denmark)

    Sandhu, Hardip; Ansar, Saema; Edvinsson, Lars

    2010-01-01

    on translational level and increased respective contractions. The prostanoid TP receptor mediated contraction curve was left-wards shifted by organ culture. Organ culture was associated with elevated pERK1/2 in the vascular smooth muscle cells: the MEK1/2 inhibitor U0126 attenuated the endothelin ET(B) receptor...... mediated contraction at post-translational level or by changing the receptor affinities. The serotonin 5-HT(1B) receptor and prostanoid TP receptor mediated contractions were abolished by U0126. Administration of U0126 6h after start of incubation blocked the receptor upregulation. In conclusion, MEK...

  4. Discussion of the oxygen inhalation technique with O15 for the evaluation of cerebral metabolism/flow relationships in cerebro-vascular diseases

    International Nuclear Information System (INIS)

    Lenzi, G.L.; Jones, T.; Frackowiak, R.S.J.; Fieschi, C.

    1980-01-01

    The use of short lived radioisotopes, particularly 15 O, has opened up the possibility of studying both oxygen metabolism and blood flow in patients non-invasively. The results obtained with the oxygen inhalation technique (O.I.T.) and two dimensional imaging have been reported since 1976. Positron emission tomography represents an important technical advance on these initial studies. It permits the evaluation of regional CBF and cerebral metabolic rate of oxygen (CMRO 2 ) qualitatively and hopefully in the near future, in absolute quantitative terms using an essentially non-invasive technique. It will thus be possible to examine rCBF and rCMRO 2 across the spectrum of central nervous disorders systematically and longitudinally, though the necessity for having a cyclotron to produce the positron emitters will limit this to some extent. (Auth.)

  5. La Tuberculosis, Una Enfermedad Modificada*

    Directory of Open Access Journals (Sweden)

    Valentin Malagón Castro

    1993-12-01

    Full Text Available

    Con ocasión de un estudio de revisión que hemos llevado a cabo recientemente sobre la tuberculosis osteoarticular, *** se ha apreciado un cambio notable en las características y manifestaciones de esta enfermedad.

    Hemos sido testigos del comportamiento de la tuberculosis en los últimos 40 años. Realizamos la tesis profesional en el Hospital de niños de la Misericordia de Bogotá en el año 1950 (86, basada en el análisis de más de 300 enfermos de Mal de Pott tratados con pobres resultados en esa institución en la época prequimioterápica. Efectuamos estudios de control del tratamiento quirúrgico de esa afección en el Hospital Infantil Lorencita Villegas de Santos y publicamos sus resultados en los años 1975,1980 Y1987 (85-87-88. Los pacientes correspondientes a estas nuevas series, ya en la época de la quimioterapia moderna, presentaban un mejor pronóstico vital y funcional. Cuadro 1A.

    En el decenio 1978-1988 asistimos al descenso espectacular de la frecuencia de tuberculosis osteoarticular en las salas de nuestros hospitales. Posteriormente hemos sido igualmente testigos de su lenta y progresiva reaparición.

    El estudio actual nos ha mostrado profundos cambios, como ya se ha dicho, en el comportamiento de la entidad, por lo que estamos de acuerdo en denominarla: La tuberculosis, una enfermedad modificada, diferente a la que hasta hace un década parecía derrotada, vencida por las nuevas drogas y las recientes técnicas quirúrgicas.

    La actual es una enfermedad diferente que ha tomado una fuerza avasalladora que amenaza con volverse resistente al tratamiento específico y dar lugar a una pandemia de incalculables proporciones y de terribles consecuencias para la humanidad.

    El objeto de publicar este estudio es recordar a nuestros colegas, en especial a aquellos de las nuevas promociones que quizás no han tenido la oportunidad de estar en contacto con pacientes de tuberculosis osteoarticular, de

  6. Enfermedad de Tay-Sachs

    Directory of Open Access Journals (Sweden)

    Albia Josefina Pozo Alonso

    Full Text Available La enfermedad de Tay-Sachs es un trastorno neurodegenerativo progresivo de herencia autosómica recesiva. Se debe a la deficiencia de la enzima β-hexosaminidasa A, que provoca una acumulación de gangliósidos GM2 en los lisosomas. Se incluye dentro de las esfingolipidosis. De las esfingolipidosis que presentan mancha rojo cereza en la mácula, la enfermedad de Tay-Sachs es la única en la que no se evidencia hepatoesplenomegalia. La variante más frecuente se inicia en la lactancia. Se presenta un lactante del sexo masculino al que se le realizó el diagnóstico de esta entidad a los 8 meses de edad. A partir de los 4 meses comenzó a presentar una reacción de sobresalto. A los 6 meses comenzó a perder habilidades previamente adquiridas y crisis epilépticas mioclónicas. Se constató una disminución de la actividad específica de la enzima hexosaminidasa A en leucocitos.

  7. Comparison of MEK/ERK pathway inhibitors on the upregulation of vascular G-protein coupled receptors in rat cerebral arteries

    DEFF Research Database (Denmark)

    Sandhu, Hardip; Ansar, Saema; Edvinsson, Lars

    2010-01-01

    on translational level and increased respective contractions. The prostanoid TP receptor mediated contraction curve was left-wards shifted by organ culture. Organ culture was associated with elevated pERK1/2 in the vascular smooth muscle cells: the MEK1/2 inhibitor U0126 attenuated the endothelin ET(B) receptor......Organ culture is an in vitro method for investigating cellular mechanisms involved in upregulation of vasocontractile G-protein coupled receptors. We hypothesize that mitogen-activated-protein kinase (MEK) and/or extracellular-signal-regulated kinase (ERK) specific inhibitors will attenuate the G......), prostanoid TP receptor, and angiotensin II receptor type 1 and type 2 were investigated. Results were verified by measurement of mRNA with real time PCR and by protein immunohistochemistry. Organ culture induced transcriptional upregulation of endothelin ET(B) receptor and of serotonin 5-HT(1B) receptor...

  8. Clinical application of cerebral dynamic perfusion studies

    International Nuclear Information System (INIS)

    DeLand, F.H.

    1975-01-01

    Radionuclide cerebral perfusion studies are assuming a far greater importance in the detection and differential diagnosis of cerebral lesions. Perfusion studies not only contribute to the differential diagnosis of lesions but in certain cases are the preferred methods by which more accurate clinical interpretations can be made. The characteristic blood flow of arterio-venous malformations readily differentiates this lesion from neoplasms. The decreased perfusion or absent perfusion observed in cerebral infarctions is diagnostic without concurrent evidence from static images. Changes in rates and direction of blood flow contribute fundamental information to the status of stenosis and vascular occlusion and, in addition, offer valuable information on the competency and routes of collateral circulation. The degree of cerebral perfusion after cerebral vascular accidents appears to be directly related to patient recovery, particularly muscular function. Cerebral perfusion adds a new parameter in the diagnosis of subdural haematomas and concussion and in the differentiation of obscuring radioactivity from superficial trauma. Although pictorial displays of perfusion blood flow will offer information in most cerebral vascular problems, the addition of computer analysis better defines temporal relationships of regional blood flow, quantitative changes in flow and the detection of the more subtle increases or decreases in cerebral blood flow. The status of radionuclide cerebral perfusion studies has taken on an importance making it the primary modality for the diagnosis of cerebral lesions. (author)

  9. Vascular territories and watersheds: a zonal frequency analysis of the gyral and sulcal extent of cerebral infarcts. Part I: the anatomic template

    International Nuclear Information System (INIS)

    Naidich, T.P.; Brightbill, T.C.

    2003-01-01

    Our purpose was to establish a template of upper cerebral anatomy suitable for analysis of infarct distribution and for comparison among infarct types. We made a standard diagram of the key gyri and sulci of the supraventricular and occipital regions, partitioned the gray matter and white matter into specific zones useful for analyzing infarcts by CT and MRI, and numbered each zone uniquely in to establish a template suitable for tabulating the precise regions affected by each infarct and for analyzing differences among infarcts. The template provides a method for extracting a standardized set of data from CT or MRI performed at any angle, reconfiguring those data into a standard image, and characterizing the specific portions of infarcted brain in terms of unique numbers suitable for tabulation, collation and comparison. Standardization of the format provides for later computer analysis of increasing numbers of diverse infarcts. This method may be extended to any other type of pathology, although successful analysis of different lesions may require partitioning the gray and white matter zones in different ways. (orig.)

  10. Acidente vascular cerebral isquêmico em uma enfermaria de neurologia: complicações e tempo de internação Stroke in a neurology ward: etiologies, complications and length of stay

    Directory of Open Access Journals (Sweden)

    Rodrigo Bomeny de Paulo

    2009-01-01

    Full Text Available OBJETIVOS: Os objetivos deste trabalho foram: avaliar as complicações e o tempo de internação de doentes com acidente vascular cerebral isquêmico (AVCI na fase aguda ou subaguda em uma enfermaria de Neurologia geral em São Paulo; investigar a influência de idade, fatores de risco para doença vascular, território arterial acometido e etiologia sobre as complicações e o tempo de internação. MÉTODOS: Foram coletados prospectivamente dados de 191 doentes com AVCI e posteriormente analisados. RESULTADOS: Cinquenta e um doentes (26,7% apresentaram alguma complicação clínica durante a internação. A pneumonia foi a complicação mais frequente. O tempo médio de internação na enfermaria foi de 16,8±13,8 dias. Na análise multivariável, o único fator que se correlacionou significativamente com menor taxa de complicações foi idade mais jovem (OR=0,92-0,97, p INTRODUCTION: Purposes of this study were: evaluate complications and length of stay of patients admitted with diagnosis of ischemic stroke (IS in the acute or subacute phase, in a general Neurology ward in São paulo, Brazil; investigate the influence of age, risk factors for vascular disease, arterial territory and etiology. METHODS: Data from 191 IS patients were collected prospectively. RESULTS: Fifty-one patients (26.7% presented at least one clinical complication during stay. pneumonia was the most frequent complication. Mean length of stay was 16.8+-13.8 days. Multivariate analysis revealed a correlation between younger age and lower complication rates (OR=0.92-0.97, p < 0.001. presence of complications was the only factor that independently influenced length of stay (OR=4.20; CI=1.928.84; p<0.0001. CONCLUSION: These results should be considered in the planning and organization of IS care in Brazil.

  11. Análise das barreiras à utilização de trombolíticos em casos de acidente vascular cerebral isquêmico em um hospital privado do Rio de Janeiro, Brasil

    Directory of Open Access Journals (Sweden)

    Luiz Henrique de Oliveira Fonseca

    2013-12-01

    Full Text Available O acidente vascular cerebral isquêmico (AVCi é uma importante causa de sequela e morte. A correta utilização do trombolítico enfrenta várias barreiras. O objetivo foi discutir as barreiras à terapia trombolítica em pacientes que chegam, com sintomas de AVCi agudo, à emergência de um hospital privado do Rio de Janeiro, Brasil. Coorte retrospectiva de pacientes entre 2009 e 2011. Foram admitidos 257 pacientes com suspeita de AVCi. Dos pacientes com diagnóstico confirmado (156, 11,5% (18 foram trombolisados. Dos 30 pacientes com diagnóstico de AVCi, dentro da janela terapêutica e com NIHSS na faixa para trombólise, 20 não foram trombolisados, 9 por barreiras administrativas (45%. Neste trabalho o percentual de trombólise foi superior ao observado nos Estados Unidos, mas barreiras impediram o tratamento de 45% dos pacientes com indicação à trombólise. Imagina-se que na rede pública brasileira a situação seja ainda mais desfavorável.

  12. Application of histogram analysis for the evaluation of vascular permeability in glioma by the K2 parameter obtained with the dynamic susceptibility contrast method: Comparisons with Ktrans obtained with the dynamic contrast enhance method and cerebral blood volume.

    Science.gov (United States)

    Taoka, Toshiaki; Kawai, Hisashi; Nakane, Toshiki; Hori, Saeka; Ochi, Tomoko; Miyasaka, Toshiteru; Sakamoto, Masahiko; Kichikawa, Kimihiko; Naganawa, Shinji

    2016-09-01

    The "K2" value is a factor that represents the vascular permeability of tumors and can be calculated from datasets obtained with the dynamic susceptibility contrast (DSC) method. The purpose of the current study was to correlate K2 with Ktrans, which is a well-established permeability parameter obtained with the dynamic contrast enhance (DCE) method, and determine the usefulness of K2 for glioma grading with histogram analysis. The subjects were 22 glioma patients (Grade II: 5, III: 6, IV: 11) who underwent DSC studies, including eight patients in which both DSC and DCE studies were performed on separate days within 10days. We performed histogram analysis of regions of interest of the tumors and acquired 20th percentile values for leakage-corrected cerebral blood volume (rCBV20%ile), K2 (K220%ile), and for patients who underwent a DCE study, Ktrans (Ktrans20%ile). We evaluated the correlation between K220%ile and Ktrans20%ile and the statistical difference between rCBV20%ile and K220%ile. We found a statistically significant correlation between K220%ile and Ktrans20%ile (r=0.717, pK220%ile showed a statistically significant (pK2 value calculated from the DSC dataset, which can be obtained with a short acquisition time, showed a correlation with Ktrans obtained with the DCE method and may be useful for glioma grading when analyzed with histogram analysis. Copyright © 2016 Elsevier Inc. All rights reserved.

  13. Terapia baseada em realidade virtual usando o leap motion controller para reabilitação do membro superior após acidente vascular cerebral = Virtual reality therapy using the leap motion controller for post-stroke upper limb rehabilitation Virtual reality therapy using the Leap Motion Controller for post-stroke upper limb rehabilitation

    Directory of Open Access Journals (Sweden)

    Soares, Nayron Medeiros

    2017-01-01

    Full Text Available OBJETIVOS: Avaliar a aplicabilidade de um sensor de movimento, baseado em realidade virtual, para promover a reabilitação do membro superior após um acidente vascular cerebral. RELATO DOS CASOS: Três pacientes após acidente vascular cerebral realizaram um treino para reabilitação do membro superior com realidade virtual usando a tecnologia Leap Motion Controller e o jogo Playground 3D®, durante três dias consecutivos. No primeiro e no terceiro dia, foram avaliados com os testes Caixa e Blocos, Coordenação Óculo-Manual de Melo e Estimulação Magnética Transcraniana. No último dia, foram aplicadas Fichas de Avaliação da Experiência do paciente. Após o treinamento proposto, observou-se diminuição do limiar motor em ambos os hemisférios cerebrais e melhores desempenhos nos testes que avaliaram a habilidade manual e óculo-manual. A terapia proposta foi bem recebida pelos pacientes testados. CONCLUSÕES: Não foram observados efeitos adversos e os resultados mostram-se promissores e precisos no treinamento realizado com realidade virtual usando a tecnologia Leap Motion Controller e o jogo Playground 3D®. O treinamento proporcionou uma participação ativa dos pacientes na reabilitação das sequelas de extremidade superior após um acidente vascular cerebral

  14. Neuroimaging of cerebral vasculitis

    International Nuclear Information System (INIS)

    Wengenroth, M.; Saam, T.; Haehnel, S.

    2016-01-01

    Cerebral vasculitis can have a variety of origins. Furthermore, there are no vasculitis-specific symptoms or imaging signs and vasculitis of the CNS can mimic many other neurological diseases, which require different treatment approaches. Thus, the clinical and radiological diagnosis of cerebral vasculitis is challenging. Magnetic resonance imaging (MRI) and MR angiography (MRA) should be the radiological imaging methods of choice to assess the degree of parenchymal damage and to detect vessel wall changes. If the results are unclear digital subtraction angiography (DSA) should be pursued in order to also detect changes in medium sized vessels. Vasculitis of small vessels cannot be detected by vascular imaging and requires brain or leptomeningeal biopsy. In this review we present the current diagnostic approach and a variety of imaging findings in cerebral vasculitis and discuss the main radiological differential diagnoses. (orig.) [de

  15. MR vascular fingerprinting: A new approach to compute cerebral blood volume, mean vessel radius, and oxygenation maps in the human brain.

    Science.gov (United States)

    Christen, T; Pannetier, N A; Ni, W W; Qiu, D; Moseley, M E; Schuff, N; Zaharchuk, G

    2014-04-01

    In the present study, we describe a fingerprinting approach to analyze the time evolution of the MR signal and retrieve quantitative information about the microvascular network. We used a Gradient Echo Sampling of the Free Induction Decay and Spin Echo (GESFIDE) sequence and defined a fingerprint as the ratio of signals acquired pre- and post-injection of an iron-based contrast agent. We then simulated the same experiment with an advanced numerical tool that takes a virtual voxel containing blood vessels as input, then computes microscopic magnetic fields and water diffusion effects, and eventually derives the expected MR signal evolution. The parameter inputs of the simulations (cerebral blood volume [CBV], mean vessel radius [R], and blood oxygen saturation [SO2]) were varied to obtain a dictionary of all possible signal evolutions. The best fit between the observed fingerprint and the dictionary was then determined by using least square minimization. This approach was evaluated in 5 normal subjects and the results were compared to those obtained by using more conventional MR methods, steady-state contrast imaging for CBV and R and a global measure of oxygenation obtained from the superior sagittal sinus for SO2. The fingerprinting method enabled the creation of high-resolution parametric maps of the microvascular network showing expected contrast and fine details. Numerical values in gray matter (CBV=3.1±0.7%, R=12.6±2.4μm, SO2=59.5±4.7%) are consistent with literature reports and correlated with conventional MR approaches. SO2 values in white matter (53.0±4.0%) were slightly lower than expected. Numerous improvements can easily be made and the method should be useful to study brain pathologies. Copyright © 2013 Elsevier Inc. All rights reserved.

  16. Change of cerebral blood flow distribution and vascular reserver according to age in Koreans measured by Tc-99m HMPAO brain SPECT

    International Nuclear Information System (INIS)

    Song, Ho Cheon; Bom, Hee Seung; Sohn, Hye Kyung; Jeong, Hwan Jeong; Min, Jung Jun; Kim, Ji Yeol; Lee Jae Tae; Moon, Dae Hyuk; Lee, Hee Kyung

    1999-01-01

    The aim of this study was to evaluate the normal values of regional cerebral blood flow (rCBF) and cerebrovascular reserve (CVR) in normal children to aged volunteers using Tc-99m HMPAO. Thirty four right-handed normal volunteers (20 males, 14 females, mean age 40.3±24.9 years, range 4 to 82 years) were underwent rest/acetazolamide (ACZ) brain SPECT using Tc-99m HMPAO and the sequential injection and subtraction method. rCBF was estimated on the basis of a semiquantitative approach by means of right/left ratio, region/cerebellum and region to whole brain ratios in frontal, parietal, temporal, and occipital lobes, basal ganglia, thalami, and cerebellum. CVR was measured by means of % perfusion increase calculated as % mean count change compared to rest rCBF in each regions. Mean values of right to left ratios range from 1.004 to 1.018. rCBF was highest in cerebellum and lowest in basal ganglia and thalami. Frontal and temporal rCBF decreased while occipital and thalamic rCBF increased according to age. No sexual difference of rCBF was noted. Mean CVR was 29.9±12.9%. Mean CVR significantly increased to late teens, and declined thereafter. After 6th decade, CVR in both frontal lobes, left parietal lobe and right basal ganglia decreased significantly with advancing age. There was no sexual difference of CVR. Quantitative assessment of CVR was possible by ACZ Tc-99m MHPAO brain SPECT. It revealed that rCBF and CVR changed according to age in normal Korean volunteers. There was no sexual difference

  17. Genomic and non-genomic regulation of PGC1 isoforms by estrogen to increase cerebral vascular mitochondrial biogenesis and reactive oxygen species protection

    Science.gov (United States)

    Kemper, Martin F.; Stirone, Chris; Krause, Diana N.; Duckles, Sue P.; Procaccio, Vincent

    2014-01-01

    We previously found that estrogen exerts a novel protective effect on mitochondria in brain vasculature. Here we demonstrate in rat cerebral blood vessels that 17β-estradiol (estrogen), both in vivo and ex vivo, affects key transcriptional coactivators responsible for mitochondrial regulation. Treatment of ovariectomized rats with estrogen in vivo lowered mRNA levels of peroxisome proliferator-activated receptor-γ coactivator-1 alpha (PGC-1α) but increased levels of the other PGC-1 isoforms: PGC-1β and PGC-1 related coactivator (PRC). In vessels ex vivo, estrogen decreased protein levels of PGC-1α via activation of phosphatidylinositol 3-kinase (PI3K). Estrogen treatment also increased phosphorylation of forkhead transcription factor, FoxO1, a known pathway for PGC-1α downregulation. In contrast to the decrease in PGC-1α, estrogen increased protein levels of nuclear respiratory factor 1, a known PGC target and mediator of mitochondrial biogenesis. The latter effect of estrogen was independent of PI3K, suggesting a separate mechanism consistent with increased expression of PGC-1β and PRC. We demonstrated increased mitochondrial biogenesis following estrogen treatment in vivo; cerebrovascular levels of mitochondrial transcription factor A and electron transport chain subunits as well as the mitochondrial/ nuclear DNA ratio were increased. We examined a downstream target of PGC-1β, glutamate-cysteine ligase (GCL), the rate-limiting enzyme for glutathione synthesis. In vivo estrogen increased protein levels of both GCL subunits and total glutathione levels. Together these data show estrogen differentially regulates PGC-1 isoforms in brain vasculature, underscoring the importance of these coactivators in adapting mitochondria in specific tissues. By upregulating PGC-1β and/or PRC, estrogen appears to enhance mitochondrial biogenesis, function and reactive oxygen species protection. PMID:24275351

  18. Clinical significance of determination of plasma NPY levels and serum lipid profile in patients with cerebral hemorrhage and cerebral infarction

    International Nuclear Information System (INIS)

    Huang Fujuan; Shen Airong; Yang Yongqing

    2010-01-01

    Objective: To study the clinical significance of changes of plasma NPY levels and serum lipid profile in patients with cerebral hemorrhage and cerebral infarction. Methods: Plasma NPY levels (with RIA) and serum lipid profile (with biochemistry) were determined in (1) 48 patients with acute cerebral hemorrhage (2) 46 patients with acute cerebral infarction and (3) controls.Results Plasma NPY levels in both patients with cerebral hemorrhage and patients with cerebral infarction were significantly higher than those in controls (P 0.05). Conclusion: NPY played important roles in the development and pathogenesis of cerebral vascular accidents. Lipid profile changes was the basic etiological factor. (authors)

  19. Cerebral emboli and depressive symptoms in dementia.

    NARCIS (Netherlands)

    Purandare, N.; Oude Voshaar, R.C.; Hardicre, J.; Byrne, J.; McCollum, C.N.; Burns, A.

    2006-01-01

    BACKGROUND: The vascular depression hypothesis and our recent findings of increased frequency of spontaneous cerebral emboli in dementia suggest that such emboli may be involved in the causation of depressive symptoms in dementia. AIMS: To evaluate the association between spontaneous cerebral emboli

  20. MRI of sickle cell cerebral infarction

    International Nuclear Information System (INIS)

    Zimmerman, R.A.; Goldberg, H.I.; Bilaniuk, L.T.; Hackney, D.B.; Johnson, M.; Grossman, R.I.; Hecht-Leavitt, C.; Gill, F.; Pennsylvania Univ., Philadelphia

    1987-01-01

    Eleven patients with sickle cell disease and neurological symptoms underwent MRI examination. Cerebral infarcts of two types were found, those in the vascular distribution of the middle cerebral artery and those in the deep white matter. In the patient whose hydration and whose oxygenation of erythrocytes has been treated, MRI offers diagnostic advantages over arteriography and CT. (orig.)

  1. The effect of Scutellaria baicalensis stem-leaf flavonoids on spatial learning and memory in chronic cerebral ischemia-induced vascular dementia of rats.

    Science.gov (United States)

    Cao, Yanjing; Liang, Lizhen; Xu, Jian; Wu, Jiali; Yan, Yongxing; Lin, Ping; Chen, Qiang; Zheng, Fengming; Wang, Qin; Ren, Qian; Gou, Zengmei; Du, Yifeng

    2016-05-01

    Flavonoids have been shown to improve cognitive function and delay the dementia progression. However, the underlying mechanisms remain elusive. In the present study, we examined the effect of Scutellaria baicalensis stem-leaf total flavonoids (SSTFs) extracted from S. baicalensis Georgi on spatial learning and memory in a vascular dementia (VaD) rat model and explored its molecular mechanisms. The VaD rats were developed by permanent bilateral occlusion of the common carotid artery. Seven days after recovery, the VaD rats were treated with either 50 or 100 mg/kg of SSTF for 60 days. The spatial learning and memory was evaluated in the Morris water maze (MWM) test. The tau hyperphosphorylation and the levels of the related protein kinases or phosphatases were examined by western blot analysis. In VaD rats, SSTF treatment at 100 mg/kg significantly reduced the escape latency in training trial in MWM test. In the probe trial, SSTF treatment increased the searching time and travel distance in the target quadrant. SSTF treatment inhibited the tau phosphorylation in both cortex and hippocampus in VaD rats. Meanwhile, SSTF reduced the activity of glycogen synthase kinase 3β and cyclin-dependent kinase 5 in VaD rats. In contrast, SSTF treatment increased the level of the protein phosphatase 2A subunit B in VaD rats. SSTF treatment significantly improved the spatial cognition in VaD rats. Our results suggest that SSTF may alleviate tau-hyperphosphorylation-induced neurotoxicity through coordinating the activity of kinases and phosphatase after a stroke. SSTF may be developed into promising novel therapeutics for VaD. © The Author 2016. Published by ABBS Editorial Office in association with Oxford University Press on behalf of the Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences.

  2. Cerebral Palsy

    Science.gov (United States)

    Cerebral palsy is a group of disorders that affect a person's ability to move and to maintain balance ... do not get worse over time. People with cerebral palsy may have difficulty walking. They may also have ...

  3. Enfermedad pulmonar intersticial asociada a rituximab

    Directory of Open Access Journals (Sweden)

    Marcelo Fernández Casares

    2013-08-01

    Full Text Available La introducción en la práctica clínica del anticuerpo anti-CD20 rituximab ha mejorado sustancialmente el pronóstico de diversas enfermedades autoinmunes y hematológicas. Con el incremento de su uso ha aumentado el registro de efectos adversos, entre ellos la toxicidad pulmonar. Una de sus complicaciones más serias es la enfermedad pulmonar intersticial, entidad potencialmente fatal que debe ser considerada en pacientes que han recibido rituximab y presentan disnea, fiebre y tos sin clara evidencia de infección. Presentamos un caso de enfermedad pulmonar intersticial asociada a rituximab.

  4. Cerebral Vasculitis

    Directory of Open Access Journals (Sweden)

    Fariborz Khorvash

    2017-02-01

    protocol for cerebral vasculitis should include initial MRI to assess the degree of parenchymal damage and to detect vessel wall changes, in particular in large-vessel vasculitis. If the results are ambiguous or medium-sized arteries are affected (beyond the spatial resolution of MRI DSA should follow. Small-vessel vasculitides entirely evade detection by vascular imaging and consequently require brain or leptomeningeal biopsy . Exclusion of differential diagnoses: Important differential diagnoses include RCVS,  intracranial atherosclerosis Moyamoy disease, autoimmune encephalopathies and infectious disorder such as varicella zoster virus (VZV vasculopathies or endocarditis. Therapy: Vasculitis is a serious disease that is potentially fatal or leads to permanent disability and requires rapid institution of immunosuppressive treatment. Possible therapeutic options include glucocorticoids, cyclophosphamide, azathioprine, intravenous immunoglobulins and mycophenolate mofetil.

  5. Cerebral microangiopathies

    International Nuclear Information System (INIS)

    Linn, Jennifer

    2011-01-01

    Cerebral microangiopathies are a very heterogenous group of diseases characterized by pathological changes of the small cerebral vessels. They account for 20 - 30 % of all ischemic strokes. Degenerative microangiopathy and sporadic cerebral amyloid angiography represent the typical acquired cerebral microangiopathies, which are found in over 90 % of cases. Besides, a wide variety of rare, hereditary microangiopathy exists, as e.g. CADASIL (Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy), Fabrys disease and MELAS syndrome (Mitochondrial myopathy, Encephalopathy, Lactic Acidosis, and Stroke-like episodes). (orig.)

  6. Correlation study between cerebral vascular pulsation index and hypertensive retinopathy%脑血管搏动指数与高血压视网膜病变的相关性研究

    Institute of Scientific and Technical Information of China (English)

    庄雪芬; 窦汝香; 刘源

    2016-01-01

    Objective To study the correlation between cerebral vascular pulsation index(PI) and hypertensive retinopathy in order to guide the early diagnosis and treatment of disease. Methods Ninety-one patients with hypertension from September 2015 to July 2014 and 85 healthy vol-unteers were included. They were divided into several groups:group A,healthy volunteers;group B,pa-tients with retinopathy but without retinopathy;group C,patients with retinopathy complicated with reti-nopathy of grade Ⅰ;group D,patients with retinopathy complicated with retinopathy of grade Ⅱ;group E,patients with retinopathy complicated with retinopathy of grade Ⅲ;group F,patients with retinopathy complicated with retinopathy of grade IV according to Keith-Wagnar standard group. PI values were de-tected,and the statistical analysis was carried out. Results The diagnostic sensitivity and specificity of PI to hypertensive retinopathy were respectively 0. 876 and 0. 807,and the accurate rate of detection was 85. 7% . PI was significantly correlated with the grade of hypertensive retinopathy,the correlation coeffi-cient rs = 0. 858 (P ﹤ 0. 05). The difference was significant( P ﹤ 0. 05 )among each group. Conclusions The cerebral vascular pulsation index PI is positively correlated with the severity of hyper-tension retinopathy,and has the early prediction value of retinopathy.%目的:研究脑血管搏动指数(PI)与高血压视网膜病变的相关性。方法纳入高血压住院患者91例、健康志愿者85例,入院时间均在2014年7月至2015年9月。参考 Keith-Wagnar 标准分组:A 组为健康志愿者,B 组为高血压未合并视网膜病变患者,C 组为高血压合并视网膜病变Ⅰ级患者,D 组为高血压合并视网膜病变Ⅱ级患者,E 组为高血压合并视网膜病变Ⅲ级患者,F 组为高血压合并视网膜病变Ⅳ级患者。检测各组 PI 值,行统计分析。结果 PI 对高血压视网膜病变的诊断敏感性为0.876

  7. ENFERMEDAD CELIACA: REVISIÓN

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    FELIPE MOSCOSO J., DR.

    2015-09-01

    Full Text Available La Enfermedad Celiaca (EC tiene una prevalencia cercana al 1% de la población general y se considera que hay un número importante de pacientes asintomáticos no diagnosticados. Su presentación clínica es variable comprendiendo el clásico síndrome de malabsorción, formas menores y la EC silente. El diagnóstico serológico tiene una elevada sensibilidad y especificidad y siempre debe confirmarse con biopsia. El diagnóstico en pacientes en dieta libre de gluten incluye test de tipificación de HLA y prueba de dieta con gluten con estudio serológico e histológico posterior. El pilar del tratamiento es la dieta libre de gluten, que debe ser supervisada por un nutriólogo con experiencia. La monitorización de la terapia debe realizarse con serología. La EC mal controlada puede determinar complicaciones como linfoma y adenocarcinoma de intestino delgado. En el futuro es probable que nuevas terapias farmacológicas sean de utilidad en el manejo de la EC.

  8. Actividad sexual y enfermedad cardiovascular

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    José Manuel Sosa Rosado

    2012-10-01

    Full Text Available La prevalencia de las enfermedades crónicas no transmisibles se está incrementando en nuestro medio, ya sea por una mayor esperanza de vida de la población o de adopción de estilos de vida menos saludables, lo que se acompaña de un aumento en la prevalencia de obesidad, hipertensión arterial y diabetes, así como una incidencia mayor de eventos coronarios en pacientes jóvenes. Por lo que, el reinicio de la actividad sexual luego de un evento coronario y el uso de inhibidores de la fosfodiesterasa es un tema que cada vez debemos tratar con más frecuencia con nuestros pacientes y sus cónyuges. Ello tiene un efecto positivo en la salud mental y calidad de vida de nuestros pacientes. En este artículo se plantea las preguntas más frecuentes que debemos resolver los cardiólogos con nuestros pacientes.

  9. Desigualdades entre pacientes hospitalizados por doenças cardíacas e vasculares-cerebrais em localidade do Estado de São Paulo (Brasil, 1986 Inequalities among patients hospitalized for cardiac and cerebral-vascular diseases in the City of the State of S. Paulo, Brazil, 1986

    Directory of Open Access Journals (Sweden)

    Juan Stuardo Yazlle Rocha

    1989-10-01

    Full Text Available Valendo-se de um sistema de informações sobre hospitalizações no Município de Ribeirão Preto, SP (Brasil foram estudadas as características clínico-epidemiológicas referidas dos pacientes internados, em 1986, por doenças cardíacas e vasculares-cerebrais (DCVC. De 43.499 hospitalizações ocorridas naquele ano, 4.673 foram ocasionadas por doenças cardíacas e vasculares-cerebrais. Utilizando a fonte de financiamento da internação como indicador do estrato social ao qual pertence o paciente, foram compostos 4 grupos de estudo: particulares, "outros", previdenciários e "não pagantes"; estes grupos apresentaram diferenças significativas quanto a coeficiente de internações por DCVC, média e mediana de idade na hospitalização, perfil ocupacional, duração da internação, freqüência dos sub-grupos diagnósticos, coeficientes de mortalidade e a idade média e mediana nos casos de óbitos. Estas diferenças foram atribuídas às disparidades sociais no nível de vida e condições de trabalho dos grupos estudados o que determina diferenças no adoecer, ser assistido e no morrer.The clinical and epidemiological characteristics of hospitalizations due to cardiac and cerebral-vascular diseases (CCVD - ICD 390 - 438, which occurred in 1986, were studied on the basis of data from an information system relating to medical care in the City of Ribeirão Preto, State of S. Paulo, Brazil. These causes accounted for 4,673 of the annual total of 43,449 hospital admissions. Using the sources of payment of the hospitalization as an indicator of the patients' social strata, the following four study groups were defined: private, social insurance, non-paying and "others". These groups showed significant differences in relation to the following variables: hospitalization rates due to CCVD, mean and median age at admission and time of death, occupation, average length of stay in the hospital, mortality rates and relative frequencies of specific

  10. [Cerebral aspergillosis].

    Science.gov (United States)

    Tattevin, P; Jauréguiberry, S; Gangneux, J-P

    2004-05-01

    The brain is almost always a localization of invasive aspergillosis, after hematogenous spread from pulmonary aspergillosis. Brain aspergilosis is not rare and is one of the worst prognosis factors of invasive aspergillosis. The incidence of this severe mycosis is currently on the rise due to the development of major immunosuppressive treatments. Brain aspergillosis is noteworthy for its vascular tropism, leading to infectious cerebral vasculitis, mainly involving thalamoperforating and lenticulostriate arteries, with a high frequency of thalamic or basal nuclei lesions. Extra-neurologic features that suggest this diagnosis are: i) risk factors for invasive aspergillosis (major or prolonged neutropenia, hematologic malignancies, prolonged corticosteroid treatment, bone marrow or solid organ transplant, AIDS); ii) persistent fever not responding to presumptive antibacterial treatment; iii) respiratory signs (brain aspergillosis is associated with pulmonary aspergillosis in 80 to 95 p. 100 of cases). Perspectives. Two recent major improvements in brain aspergillosis management must be outlined: i) for diagnostic purposes, the development of testing for Aspergillus antigenemia (a non-invasive procedure with good diagnostic value for invasive aspergillosis); ii) for therapeutic purposes, the demonstration that voriconazole is better than amphotericin B in terms of clinical response, tolerance and survival, for all types of invasive aspergillosis, the benefit being probably even greater in case of brain aspergillosis because of the good diffusion of voriconazole into the central nervous system. Brain aspergillosis is a severe emerging opportunistic infection for which diagnostic and therapeutic tools have recently improved. Thus, this diagnostic must be suspected early, especially in the immunocompromised patient, in the event of respiratory symptoms and when the brain lesions are localized in the central nuclei and the thalamus.

  11. Transient acute renal failure and functional hemispheric depression after cerebral arteriography in diabetic patients

    DEFF Research Database (Denmark)

    Olsen, Tom Skyhøj; Lund, P; Praestholm, J

    1981-01-01

    Cerebral angiography was carried out in two diabetic patients in the evaluation of minor vascular ischemic episodes. A transient acute renal failure following cerebral angiography was accompanied by a transient comatose episode with severe unilateral neurological deficits. A functional depression...

  12. El Artista y la Enfermedad

    Directory of Open Access Journals (Sweden)

    Hernán Urbina Joiro

    2011-07-01

    Full Text Available

    «Pienso asumir sin rodeos mi oficio de loco, así como Degas ha tomado la forma de un notario.»

    Van Gogh en carta a su hermano Théo (24 de marzo de 1889.

    Virginia Woolf y Vincent Van Gogh, trágicos genios del arte, son quizá las figuras que más encarnan ante el público occidental la antigua pregunta que todavía permanece: ¿La enfermedad crea al artista? Tras un brote psicótico, Virginia Woolf dijo haber escuchado cantar a los pájaros en griego, y años más tarde lo incluyó en la caracterización de Septimus, protagonista en La Señora Dalloway:

    Los hombres no deben cortar los árboles. Hay un Dios. (Anotaba estas revelaciones al dorso de sobres. Cambia el mundo. Nadie mata por odio. Hazlo saber (lo escribió. Esperó. Escuchaba. Un gorrión, encaramado en la barandilla de enfrente, canturreó: «¡Septimus, Septimus!», cuatro o cinco veces, y, siguió cantando, sacando una a una las notas, cantando con voz nueva y también penetrante, con palabras griegas… 

    Por su parte, Van Gogh escribió en la segunda carta a su hermano Théo, en septiembre de 1889:

    El segador está terminado […] Es todo amarillo, salvo unas líneas de colinas violetas, de un amarillo pálido y rubio. A mí eso me divierte, después de haberlo visto así a través de las rejas de hierro de una casa de locos. 

  13. The influence of the day of the week of hospital admission on the prognosis of stroke patients Influencia del día de la semana de admisión hospitalaria en el pronóstico de pacientes con accidente vascular cerebral O dia da semana de admissão hospitalar influenciando o prognóstico de pacientes com acidente vascular cerebral

    Directory of Open Access Journals (Sweden)

    Paulo A. Lotufo

    2013-04-01

    Full Text Available This study aimed to evaluate the weekday and weekend distribution of stroke case hospital admissions and their respective prognosis based on a sample from the Estudo de Mortalidade e Morbidade do Acidente Vascular Cerebral (EMMA, a cohort of stroke patients admitted to a community hospital in the city of São Paulo, Brazil. We ascertained all consecutive cases of first-time strokes between April 2006 and December 2008 and performed a subsequent one-year follow-up. No association was found between frequency of hospital admissions due to ischemic and hemorrhagic strokes and the specific day of the week on which the admission occurred. However, ten-day and twelve-month case-fatality was higher in hemorrhagic stroke patients admitted at the weekend. We also found that intracerebral hemorrhage patients admitted on weekends had a worse survival rate (50% compared with those admitted during weekdays (25.6%, P log-rank = 0.03. We found a multivariate hazard ratio of 2.49 (95%CI: 1.10-5.81, P trend = 0.03 for risk of death at the weekend compared to weekdays for intracerebral hemorrhage cases. No difference in survival was observed with respect to the overall sample of stroke or ischemic stroke patients.El estudio evaluó la distribución de casos incidentes de accidente vascular cerebral (AVC que fueron al hospital de lunes a viernes o durante los fines de semana en el Estudio de Mortalidad y Morbilidad del AVC (EMMA. El EMMA es una cohorte de pacientes con AVC en un hospital comunitario de la ciudad de São Paulo, Brasil. Casos consecutivos de primer episodio de AVC internados, entre abril de 2006 y diciembre de 2008, fueron seguidos prospectivamente durante un año. No hubo diferencia en la frecuencia de las internaciones por AVC isquémico o hemorrágico durante los días de la semana. Sin embargo, la letalidad en 10 días y tras un año había aumentado en el AVC hemorrágico. En el análisis de supervivencia de un año, pacientes admitidos los

  14. Enfermedades fungosas y bacteriales del clavel en Colombia

    Directory of Open Access Journals (Sweden)

    Arbelaez Torres Germán

    1987-12-01

    Full Text Available Carnation is the most important ornamental grown in colombian greenhouses. Among the fungal diseases, one of the pathogen with great importance is Fusaríum oxysporum f. sp, dianthi. The vascular wilt pathogen Phíalophora cinerescens is also found but with a very narrow distribution.
    Stem rot caused by Fusaríum roseum is found is greenhouses with poor management and mainly after harvesting. Other soil
    pathogens as Rhízoctonía sotsni, Sclerotínia scterotiorum, Phythium sp, and Phytophthora sp. ha ve been ocasionally recognized. Among diseases than affect the foliage, the most important pathogen is Heterosporium echinulatum particularly in miniature carnation and in some mediterranean standard varieties. Carnation rust caused by Uromyces caryophyllinus causes important losses in some areas at the Bogotá plateau,
    specially during the rainy season. Leaf spot caused by Alternaría dianthi has a very little importance and it is present at cutting rooting periodo Peronospora diathicola is also
    found with low incidence. Flower rooting produced by Botrytis cinerea has been reported with a mild incidence particularly
    during rainy season on some varieties. The importance of this pathogen on carnation is minor comparad to its importance on other ornamental crops, such as statice and chrysanthemum.
    Among bacterial diseases only the leaf spot caused by Pseudomonss woodsii has been recorded with a very low incidence.
    El clavel es el cultivo más importante dentro de las flores de exportación cultivadas en Colombia. Dicho cultivo es afectado por un número importante de enfermedades fungosas. La enfermedad más importante y de mayor distribución en Colombia es la ocasionada por Fusaríum oxysporum f. so, dianthi, en forma similar a como ocurre en la mayoría de los países productores de clavel en el mundo. La enfermedad vascular ocasionada por Phíalophora cinerescens se presenta también pero con una distribuci

  15. Enfermedad coronaria en pacientes con psoriasis

    Directory of Open Access Journals (Sweden)

    Walter Masson

    2013-10-01

    Full Text Available Comunicaciones previas asociaron la psoriasis con la enfermedad coronaria. Desconocemos si en nuestro país o región existe dicha asociación. Se realizó un estudio transversal analizando los datos de la historia clínica electrónica de un sistema de salud de Buenos Aires. Analizamos todos los pacientes mayores de 18 años con diagnóstico de psoriasis entre el 1 de enero de 2003 y el 31 de julio de 2011 y los comparamos con un grupo control, en una relación 2:1, obtenido en forma aleatoria del mismo sistema de salud, apareados por edad y sexo. Determinamos la prevalencia de los factores de riesgo cardiovascular y de enfermedad coronaria. Analizamos la asociación entre la enfermedad coronaria y la psoriasis mediante análisis uni y multivariado. Se incluyeron 3 833 sujetos (1 286 pacientes con psoriasis y 2 547 controles. La prevalencia de hipertensión arterial (50% vs. 38%, p < 0.001, tabaquismo (25% vs. 17%, p < 0.001, diabetes (12% vs. 8%, p < 0.001 y enfermedad coronaria (4.98% vs. 3.06%, p = 0.003 fue mayor en los sujetos con psoriasis en comparación con el grupo control. Independientemente de la edad, la presencia de diabetes, hipertensión arterial o tabaquismo, hubo una asociación significativa entre la enfermedad coronaria y la psoriasis (OR 1.48, IC95% 1.04-2.11, p = 0.03. En conclusión, en esta población de Buenos Aires, los pacientes con psoriasis tuvieron una mayor prevalencia de diabetes, hipertensión arterial, tabaquismo y enfermedad coronaria. La asociación entre la psoriasis y la enfermedad coronaria fue independiente de los factores de riesgo explorados.

  16. Desintegración de las praxias en la enfermedad de Alzheimer

    Directory of Open Access Journals (Sweden)

    Carlos A. Bardeci

    1972-03-01

    Full Text Available Se describe la sintomatologia clínica, los resultados de métodos auxiliares y de la punción biopsia cerebral de una paciente con enfermedad de Alzheimer. Se analizan los diversos aspectos clínicos, sosteniendose como posible determinar la individualidad clínica de la enfermedad de Alzheimer, dentro del capítulo de las demencias preseniles y su diagnóstico en vida. Las formas de apraxia presentes en esta observación confirman la correlación estrecha que existe entre los distintos niveles de su desintegración, à su relación con las perturbaciones del espacio al cual están genéticamente vinculadas; el espacio euclidiano para la apraxia constructiva, el espacio centrado en el propio cuerpo para la ideomotora y el concreto de manipulación de objetos para la ideatoria.

  17. Vascular cognitive impairment

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    N.V. Vakhnina

    2014-01-01

    Full Text Available Vascular pathology of the brain is the second most common cause of cognitive impairment after Alzheimer's disease. The article describes the modern concepts of etiology, pathogenetic mechanisms, clinical features and approaches to diagnosis and therapy of vascular cognitive impairment (VCI. Cerebrovascular accident, chronic cerebral circulatory insufficiency and their combination, sometimes in combination with a concomitant neurodegenerative process, are shown to be the major types of brain lesions leading to VCI. The clinical presentation of VCI is characterized by the neuropsychological status dominated by impairment of the executive frontal functions (planning, control, attention in combination with focal neurological symptoms. The diagnosis is based on comparing of the revealed neuropsychological and neurological features with neuroimaging data. Neurometabolic, acetylcholinergic, glutamatergic, and other vasoactive drugs and non-pharmacological methods are widely used to treat VCI. 

  18. Patent foramen ovale in a cohort of young patients with cryptogenic ischemic stroke Forame oval patente em uma coorte de pacientes jovens com acidente vascular cerebral isquêmico

    Directory of Open Access Journals (Sweden)

    Marcus Tulius T. Silva

    2005-06-01

    Full Text Available OBJECTIVE: Although its role is a matter of debate, some studies described a higher prevalence of patent foramen ovale (PFO and atrial septal aneurysm (ASA in young stroke patients, with higher risk with PFO / ASA association (OR 4.96. The aim of this study was determine the prevalence of PFO and ASA in a cohort of cryptogenic ischemic stroke (IS patients younger than 55 years and to follow-up after surgical or percutaneous endovascular closure (PEC. METHOD: In 21 months we identified all patients less than 55 years old with IS who were admitted to our hospital. Cryptogenic IS was considered if there is not an identifiably cause to cerebral ischemia. Transesophageal echocardiography (TEE was performed in all patients. After interatrial septal abnormalities diagnosis, percutaneous device closure was offered to all. Patients were followed monthly and keeped with oral AAS or Clopidogrel. RESULTS: We identified 189 patients with IS and 32 were less than 55 years old (16.9%. In 29 the IS was cryptogenic. TEE was performed in all patients and some form of interatrial septal abnormality was identified in 12 (12/29 - 41.3%; 5 had a PFO and in 7 there was PFO plus ASA. Ten patients were submitted to PEC and 2 were submitted to surgical closure. In mid-term follow-up (28 months no ischemic events occurred and 2 patients related disappearance of migraine symptoms. CONCLUSION: Our small series description is in accordance with other studies and suggests a possible relation between interatrial septal abnormalities and IS in a cohort of young patient.OBJETIVO: A associação das anormalidades do septo interatrial - forame oval patente (FOP e aneurisma de septo interatrial (ASA - com acidente vascular cerebral isquêmico (AVCI ainda é questão de incerteza para muitos autores. No entanto, vários estudo mostram que em pacientes jovens tais anormalidades podem estar relacionadas à gênese de eventos isquêmicos. Nosso objetivo é descrever a prevalência do

  19. Cerebral Amyloid Angiopathy

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    Mahmut Edip Gürol

    2009-03-01

    Full Text Available Cerebral amyloid angiopathy (CAA is characterized by the accumulation of amyloid beta-peptides (Ab in the walls of leptomeningeal arteries, arterioles, and veins. Despite the fact that these pathological changes were first described in 1909, major advancement in our understanding of the clinicoradiological manifestations, neurobiology, and course of CAA has occurred only during the last 30 years. No significant associations have been shown between CAA and other systemic/visceral amyloidoses or vascular risk factors, including hypertension. CAA is well known as the most common cause of spontaneous and anticoagulant-related lobar parenchymal ICH in the elderly. It also causes lobar cerebral microbleeds (CMBs, small dot-like dark susceptibility artifacts visible with gradient recalled echo (GRE-magnetic resonance imaging (MRI. CMBs are important markers of disease severity and predictors of CAA progression. Amyloid angiopathy is also a common cause of ischemic microvascular white matter disease (WMD and deep cerebral infarctions. Such WMD is defined as subcortical and periventricular white matter changes without obvious infarction, as well as a dark appearance on computerized tomography (CT and a bright appearance on fluid attenuated inversion recovery (FLAIR-MRI. CAA-related vascular dysfunction, with its hemorrhagic and ischemic complications, is a recognized contributor to vascular cognitive impairment in the elderly, an independent effect that is synergistically increased by Alzheimer pathologies, such as plaques and tangles. A set of clinicoradiological criteria was established for the accurate diagnosis of CAA. According to the Boston Criteria, patients aged 55 years and older with multiple hemorrhages (on CT or GRE-MRI restricted to the lobar, cortical, or corticosubcortical regions (cerebellar hemorrhage allowed are diagnosed as probable CAA when no other etiology is found; a single hemorrhage in the same region is classified as possible

  20. Enfermedad de Chagas o Tripanosomiasis Americana.

    Directory of Open Access Journals (Sweden)

    Felipe Guhl

    2000-08-01

    Full Text Available

    Situación Actual de Colombia.

    La enfermedad de Chagas o tripanosomiasis americana es una enfermedad parasitaria crónica causada por un protozoario flagelado el Trypanosoma cruzi, descrito por primera vez por Carlos Chagas, médico brasileño, a comienzos de este siglo y en su honor se denominó la enfermedad que lleva su nombre.

    Este parásito normalmente se transmite al ser humano a través de insectos triatomíneos estrictamente hematófagos de la familia Reduviidae, en el momento en que perforan la piel para succionar la sangre que los alimenta.

    Sin embargo, no se inocula directamente por intermedio de las estructuras bucales del insecto en el momento de la picadura como en el caso de las tripanosomiasis africanas, si no que se deposita pasivamente en la piel a través de las heces del insecto, penetrando en el cuerpo por la herida que causa la picadura u otras abrasiones de la piel o de la mucosa. El T. cruzi, también puede transmitirse por infección congénita, por transfusión de sangre contaminada o por el transplante de órganos contaminados. El ciclo vital del parásito es largo y complejo y su desarrollo tiene varias etapas, tanto en el vector triatomineo como en el huésped vertebrado .

    La Enfermedad de Chagas constituye una amenaza permanente para casi la cuarta parte de toda la población de América Latina. Si bien la enfermedad se encuentra presente en toda América Central y del Sur, sus manifestaciones y características epidemiológicas son altamente variables entre una y otra zona endémica. Existe una gran diversidad en las tasas de prevalencia, formas de transmisión, características parasitarias, patología clínica, vectores y reservorios.

    Más que cualquier otra enfermedad parasitaria, la enfermedad de Chagas se relaciona con el desarrollo económico y social de la población: los insectos triatomineos y las enfermedades que ellos transmiten existirán mientras en

  1. Tratamiento de la enfermedad de Graves Basedow

    Directory of Open Access Journals (Sweden)

    Hernando Vargas-Uricoechea

    2014-05-01

    Full Text Available Se realizó una revisión narrativa rigurosa de la literatura inglesa y en español sobre diferentes aspectos de la Enfermedad de Graves-Basedow e hipertiroidismo. Esta patología –parte de la llamada “enfermedad tiroidea autoinmune”- se produce como consecuencia de la presencia de anticuerpos circulantes que se unen y activan al receptor de tirotropina, desencadenándose generalmente el hipertiroidismo en asociación con un estrés agudo. En este artículo actualizamos tanto el manejo de hipertiroidismo como el de problemas especiales con el que puede estar asociado. La fisiopatología y el diagnóstico de la Enfermedad de Graves-Basedow son motivo de otra publicación.

  2. Estudo das freqüências dos principais fatores de risco para acidente vascular cerebral isquêmico em idosos Study of the main risk factors frequencies for ischemic cerebrovascular disease in elderly patients

    Directory of Open Access Journals (Sweden)

    Sueli Luciano Pires

    2004-09-01

    Full Text Available Foram estudados retrospectivamente 262 pacientes com diagnóstico clínico de acidente vascular cerebral isquêmico (AVCi permanente, com idade igual ou superior a 60 anos, selecionados dos 1015 registros da Liga de Aterosclerose da Clínica Neurológica da ISCMSP, de 1990 a 2002. O estudo focalizou as freqüências dos fatores de risco modificáveis para AVCi nesta população idosa, considerando-se sexo e faixa etária dos pacientes. Os resultados evidenciaram que a hipertenção arterial sistêmica é significativamente freqüente (87,8% entre pacientes idosos com AVCi, independentemente do sexo e da faixa etária. Tabagismo (46,9% e etilismo (35,1% revelaram-se fatores de riscos modificáveis freqüentes especialmente entre os homens. As cardiopatias (27,0%, o Diabete Melito (19,9% e as dislipidemias (15,6% também se revelaram fatores de risco modificáveis freqüentes em pacientes idosos com AVCi, em ambos os sexos e em ambas as faixas etárias estudadas (60 a 70 anos e mais que 71 anos. Foi relativamente baixa a freqüência de hiperuricemia nesta amostra.Two hundred and sixty two patients with clinical diagnosis of permanent ischemic stroke, all of them aged 60 or more were retrospectively studied from the 1015 cerebrovascular diseases (CVD records of the Atherosclerosis Ligue of the Neurology Clinics of the ISCMSP, from 1990 to 2002. The study emphasized modifiable risk factors frequencies for ischemic stroke in this population, considering gender and age of the patients. Results have evidenced that systemic arterial hypertension is a main risk factor significantly frequent in old people (87.8%, independently of gender and age. Smoking (46.9% and alcohol consumption (35.1% have revealed to be very frequent important modifiable risk factors especially among men. Lower frequencies have been presented for cardiac diseases (27.0%, Diabetes Melitus (19.9%, and dislipidemia (15.6% as risk factors for ischemic stroke in old people of both

  3. Cerebral vasculitis

    International Nuclear Information System (INIS)

    Greenan, T.J.; Grossman, R.I.

    1990-01-01

    This paper reviews retrospectively MR, CT, and angiographic findings in patients with cerebral vasculitis in order to understand the strengths and weaknesses of the various imaging modalities, as well as the spectrum of imaging abnormalities in this disease entity. Studies were retrospectively reviewed in 12 patients with cerebral vasculitis proved by means of angiography and/or brain biopsy

  4. Cerebrovascular disorders in childhood: etiology, clinical presentation, and neuroimaging findings in a case series study Acidente vascular cerebral na infância: etiologia, apresentação clínica e achados de neuroimagem em um estudo de série de casos

    Directory of Open Access Journals (Sweden)

    André P.C. Matta

    2006-06-01

    Full Text Available OBJECTIVE: To describe the main etiologies, neurological manifestations and neuro-imaging findings among children with sequelae of cerebrovascular disorders. METHOD: Case series study of children whose diagnosis was stroke sequelae. Variables studied were age at the time of first episode, number of episodes, etiology, motor deficits, epilepsy, and effected vascular territory. RESULTS: Twenty three patients were studied. Average age at first episode was 6.91 (±2.08 years. Fourteen patients were female. The number of stroke events per patient ranged from one to five. The most frequent etiologies were heart disease and sickle cell anemia. The most frequent neurological deficit was right hemiparesis. Nine patients experienced seizures. The left middle cerebral artery was the most affected vascular area. CONCLUSION: Our findings are similar to those described in the literature. Despite a careful investigation, some causes of stroke remain unidentified.OBJETIVO: Descrever as principais etiologias, manifestações neurológicas e achados de neuroimagem entre crianças com seqüela de acidente vascular cerebral (AVC. MÉTODO: Estudo de série de casos de crianças com seqüela de AVC isquêmico ou hemorrágico, analisando-se as variáveis: idade no primeiro episódio, número de eventos, etiologia, déficit motor, epilepsia e território vascular acometido. RESULTADO: Vinte e três pacientes foram incluídos, sendo 14 do sexo feminino. A idade do primeiro episódio foi 6.91 (±2,08 anos. O número de eventos por paciente variou entre 1 e 5. As etiologias mais freqüentes foram cardiopatia e anemia falciforme. O déficit mais encontrado foi a hemiparesia direita. Nove pacientes apresentaram convulsões. A artéria cerebral média esquerda foi o território vascular mais afetado. COCLUSÃO: Os achados deste trabalho estão de acordo com a literatura em geral. Apesar de extensa investigação, alguns casos permanecem sem definição etiológica.

  5. Tratamiento de la enfermedad de Graves Basedow

    OpenAIRE

    Hernando Vargas-Uricoechea; Carlos Hernán Sierra-Torres; Ivonne Alejandra Meza-Cabrera

    2014-01-01

    Se realizó una revisión narrativa rigurosa de la literatura inglesa y en español sobre diferentes aspectos de la Enfermedad de Graves-Basedow e hipertiroidismo. Esta patología –parte de la llamada “enfermedad tiroidea autoinmune”- se produce como consecuencia de la presencia de anticuerpos circulantes que se unen y activan al receptor de tirotropina, desencadenándose generalmente el hipertiroidismo en asociación con un estrés agudo. En este artículo actualizamos tanto el manejo de hipertiroid...

  6. Disfagia asociada a la enfermedad de Parkinson

    OpenAIRE

    Rodríguez Alonso, Alexandra

    2017-01-01

    La disfagia orofaríngea es un síntoma que se asocia a la enfermedad de Parkinson, se define como la dificultad o el impedimento al avance normal del bolo alimenticio desde la cavidad oral hasta el estómago, contribuyendo a una deglución ineficaz e insegura. Este proyecto de investigación tiene como objetivo principal detectar disfagia en pacientes con Enfermedad de Parkinson. Se realizó una encuesta que fue distribuida entre los EP que acuden a rehabilitación a la Asociación de Parkinson V...

  7. IMPUESTOS QUE PREVIENEN LA ENFERMEDAD

    Directory of Open Access Journals (Sweden)

    Alfredo Jácome Roca

    2016-12-01

    ómico.

    Así pues, se trata de un impuesto progresivo que busca proteger la salud, en especial la de los niños, disminuyendo la aparición de enfermedades como la diabetes y la obesidad. Existen múltiples estudios en la literatura médica internacional que confirman lo anterior (2- 4. Las investigaciones demuestran que el consumo frecuente de bebidas azucaradas se ha asociado con el riesgo de sufrir sobrepeso y obesidad, el desarrollo de síndrome metabólico, diabetes de tipo 2 y con la aparición de cardiopatías. Si bien la obesidad consiste en un proceso multicausal, requiere de un conjunto de medidas estratégicas como advertencias en las etiquetas, la limitación del tamaño de los envases o la restricción del uso de máquinas dispensadoras de bebidas azucaradas como gaseosas; y, teniendo en cuenta que el precio constituye uno de los principales factores influyentes en la elección de esos alimentos, se espera que el impuesto disminuya el consumo, particularmente entre las clases populares en las cuales el riesgo de adquirir las patologías mencionadas es mayor.

    Siguiendo esta línea, los nuevos impuestos a este consumo conforman una tendencia mundial que ha sido recomendada por la Organización Mundial de la Salud (OMS como medida clave para evitar la expansión de enfermedades no transmisibles. Incluso varios países han intentado gravar con impuestos los alimentos con alto contenido en grasas saturadas y sal, ya que se podría moderar su consumo (2. De forma que, la discusión se puede extender a contemplar el pago de impuestos que graven sustancias nocivas o potencialmente nocivas para la salud de los colombianos como el tabaco y el alcohol. En la actualidad, se ha comprobado la eficacia de la medida de aumentar los gravámenes al tabaco para mejorar la salud pública y el impacto sería mejor si los dineros captados se invierten en programas de control y educación, como se ha hecho desde hace varias décadas en el país, financiando programas de medicina

  8. Propuesta de Plan de Cuidado a la Persona con Aneurisma Cerebral

    Directory of Open Access Journals (Sweden)

    Jully Catherine Acevedo Arguello

    2012-08-01

    Full Text Available Objetivo: Describir el plan de cuidado a la persona con Aneurisma Cerebral. Métodos: Se identificaron los dominios de Enfermería alterados y las necesidades frecuentes en el proceso de salud-enfermedad (Aneurisma Cerebral; también se estableció el juicio (Diagnóstico de enfermería NANDA que orientó la implementación de objetivos (NOC y desarrollo de actividades e intervenciones de enfermería (NIC; todo ello con el fin de brindar cuidados integrales a la persona, la familia y la comunidad, conservar el funcionamiento neurológico y prevenir el riesgo de complicaciones en la persona al cuidado de enfermería con una enfermedad cerebrovascular. Resultados y Conclusiones: Los aneurismas cerebrales son dilataciones localizadas de la pared del vaso arterial y por lo general se encuentran en puntos de bifurcación o en relación con el origen de una rama arterial; todos los aneurismas cerebrales tienen potencial de ruptura y causan complicaciones serias como el accidente cerebro-vascular hemorrágico, situación clínica crítica conocida como hemorragia subaracnoidea. Debido al impacto que tiene dicha patología tanto en la persona, la familia y la comunidad, el profesional de Enfermería requiere fortalecer los conocimientos acerca de la patología, el cuidado propio de Enfermería y desarrollar las habilidades que permitan un cuidado integral de éste tipo de personas. El PAE es una herramienta fundamental utilizada en la práctica asistencial de la disciplina de enfermería. Éste fa vorece la perspectiva del profesional de enfermería hacia la planificación y el desarrollo de cuidados sistematizados, lógicos y racionales centrados en respuestas humanas dentro del proceso de salud-enfermedad, estos cuidados buscan obtener logros tanto en la persona, la familia y la comunidad sana o enferma, permitiendo tener una visión holística en el proceso del cuidado diario tanto en áreas clínicas como comunitarias.

  9. ¿Qué es una enfermedad rara?

    OpenAIRE

    Dirección General de Salud Pública y Participación. Gobierno del Principado de Asturias

    2014-01-01

    Enfermedades Raras en Asturias. Dirección General de Salud Pública y Participación. Informes breves 01 Defining what is meant by rare diseases. Definición de lo que se entiende por enfermedades raras.

  10. PSA (:30) Enfermedades diarreicas (Diarrheal Diseases)

    Centers for Disease Control (CDC) Podcasts

    2017-10-25

    Este anuncio de servicio público de 30 segundos habla sobre cómo prevenir las enfermedades diarreicas después de una emergencia.  Created: 10/25/2017 by Centers for Disease Control and Prevention (CDC).   Date Released: 10/25/2017.

  11. Enfermedad injerto contra huesped: sus manifestaciones bucales

    Directory of Open Access Journals (Sweden)

    Claudia Marcela Hernández Cancino

    Full Text Available La enfermedad injerto contra huésped es la principal complicación que sufren los pacientes que han recibido trasplante alogénico. Se produce como consecuencia de una reacción inflamatoria exagerada mediada por los linfocitos del donante y estimulada por aquellos tejidos que han sido lesionados por la enfermedad de base, por las infecciones previas o por el tratamiento de acondicionamiento. El diagnóstico es clínico e histopatológico. Los pacientes presentan rash maculopapular pruriginoso y doloroso que puede extenderse por toda la superficie corporal, fiebre, vómito, náuseas, diarrea y anorexia. En la mucosa bucal se observan erosiones ulceradas, extremamente dolorosas y pueden ser la primera o la única manifestación detectable clínicamente de esta enfermedad. El objetivo es presentar un caso de enfermedad de injerto contra huésped. Se trata de una mujer de 54 años de edad con linfoma no-Hodgking, que recibió tratamiento con quimioterapia, radioterapia y trasplante de células madre hematopoyéticas en el 2009. Tres meses después, presentó lesiones en la piel diagnosticadas como enfermedad injerto contra huésped y tratadas con corticoesteroides, a los seis meses fue remitida al odontólogo porque se quejaba de ardor en la boca, xerostomía y dificultad para masticar, tenía úlceras en la mucosa bucal y en la lengua. En la ocasión recibió tratamiento con corticoesteroides, clorhexidina, orientaciones de higiene bucal y controles clínicos permanentes. Aunque existen protocolos para la prevención y el tratamiento de la enfermedad injerto contra el huésped, su frecuencia ha aumentado en los últimos años debido al incremento en el número de trasplantes. Por esta razón, es fundamental que el odontólogo forme parte del grupo multidisciplinario que asiste al paciente y que esté familiarizado con los signos y síntomas de esta enfermedad en la mucosa bucal, pues las manifestaciones clínicas pueden ser las únicas para

  12. Anestesia e paralisia cerebral Anestesia y parálisis cerebral Anesthesia and cerebral palsy

    Directory of Open Access Journals (Sweden)

    Március Vinícius M Maranhão

    2005-12-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: A paralisia cerebral (PC é uma doença não progressiva decorrente de lesão no sistema nervoso central, levando a um comprometimento motor do paciente. O portador de PC freqüentemente é submetido a procedimentos cirúrgicos devido a doenças usuais e situações particulares decorrentes da paralisia cerebral. Foi objetivo deste artigo revisar aspectos da paralisia cerebral de interesse para o anestesiologista, permitindo um adequado manuseio pré, intra e pós-operatório neste tipo de paciente. CONTEÚDO: O artigo aborda aspectos da paralisia cerebral como etiologia, classificação, fatores de risco, fisiopatologia, quadro clínico, diagnóstico, terapêuticas utilizadas bem como avaliação pré-operatória, medicação pré-anestésica, manuseio intra e pós-operatório, analgesia pós-operatória e dor crônica. CONCLUSÕES: O anestesiologista desempenha um papel importante na diminuição da morbidade e mortalidade anestésico-cirúrgica em pacientes portadores de paralisia cerebral. O conhecimento da fisiopatologia dos diferentes tipos de paralisia cerebral bem como das doenças associadas e suas terapêuticas é imprescindível, pois permite ao anestesiologista antecipar e prevenir complicações intra e pós-operatórias neste tipo de paciente.JUSTIFICATIVA Y OBJETIVOS: La parálisis cerebral (PC es una enfermedad no progresiva consecuente de una lesión en el sistema nervioso central, llevando a un comprometimiento motor del paciente. El portador de PC, frecuentemente es sometido a procedimientos quirúrgicos debido a enfermedades usuales y situaciones particulares consecuentes de la parálisis cerebral. El objetivo de este artículo, fue revisar aspectos de la parálisis cerebral de interés para el anestesista, permitiendo un adecuado manoseo pre, intra y posoperatorio en este tipo de paciente. CONTENIDO: El artículo aborda aspectos de la parálisis cerebral como etiología, clasificación, factores de

  13. Are the angiotensin-converting enzime gene and acticity risk factors for stroke? São fatores de risco para acidente vascular cerebral o gene e a atividade da enzima conversora de angiotensina ?

    Directory of Open Access Journals (Sweden)

    Miris Dikmen

    2006-06-01

    Full Text Available Stroke is a multifactorial disease in which genetic factors play an important role. This study was carried out to determine angiotensin-converting enzyme (ACE gene polymorphism in Turkish acute stroke patients and to establish whether there is an association of angiotensin-converting enzyme gene I/D polymorphism with clinical parameters. In this study 185 patients and 50 controls were recruited. We have investigated the association among the allelic distribution of the insertion/deletion (I/D polymorphism of the ACE gene identified by polymerase chain reaction. Distribution of ACE gene I/D genotypes and allele frequencies in patients were not significantly different from controls. D allele frequencies were 57.8% in patients versus 53.0% in controls and I allele 42.2% versus 47% respectively. History of hypertension, stroke, renal, heart and vessel diseases incidence and age, gender, systolic-diastolic blood pressures and creatinine levels were significantly high in patients. But these results and ACE activities had no significant differences among the ACE genotypes in patients and controls. Our results suggest that the ACE gene polymorphism is not associated with the pathogenesis of stroke in Turkish stroke patients.O acidente vascular cerebral (AVC é doença multifatorial em que fatores genéticos desempenham papel importante. Este estudo foi desenvolvido para verificar o polimorfismo do gene da enzima conversora da angiotensina (ECA em pacientes turcos com AVC agudo e estabelecer se existe associação do gene I/D da ECA com parâmetros clínicos. O estudo foi realizado com 185 pacientes e 50 controles. A associação entre a distribuição alélica da inserção / deleção (I/D do polimorfismo do gene da ECA foi estudada pela reação em cadeia da polimerase. A distribuição dos genótipos I/D do gene da ECA e suas freqüências não apresentaram significância estatística quando comparados os pacientes e controles. As freqüências dos

  14. Does botulinum toxin improve the function of the patient with spasticity after stroke? Toxina botulínica proporciona melhora funcional em pacientes com espasticidade secundária a acidente vascular cerebral?

    Directory of Open Access Journals (Sweden)

    Eduardo Cardoso

    2007-09-01

    Full Text Available Post-stroke spasticity is an important cause of disability in adults, due to muscle hyperactivity, which results in limb stiffness and muscle spasm. The prognosis for these patients depends on several features such as early management and adequate physical therapy to avoid muscle shortening, pain, and their consequences. Although several papers have shown that intramuscular injections of botulinum toxin type A (BT-A decreases spasticity in post-stroke patients, few authors have demonstrated functional improvement after this therapy. In order to assess if individualized BT-A injections improves upper limb function in post-stroke spastic patients, we prospectively followed 20 consecutive patients of 18 years of age or more with spastic hemiparesis secondary to stroke. Fulg-Meyer scale modified for upper limbs, measure of functional independence (MFI, Ashworth modified scale, and goniometry were applied in the beginning of the investigation and in the 16th and 32nd weeks. BT-A was applied at baseline and in the 16th week. All subjects were submitted to rehabilitation therapy. All patients showed improvement according to Ashworth modified scale and increase in the range of motion, which were sustained until the 32nd week (pEspasticidade secundária a acidente vascular cerebral (AVC é importante causa de incapacidade em adultos. O prognóstico para estes pacientes depende de vários fatores como tratamento precoce e terapia física adequada, evitando encurtamento muscular, dor e outras conseqüências. Vários estudos têm demonstrado que aplicacões intramusculares de toxina botulínica do tipo A (TxB-A reduzem a espasticidade após AVC, entretanto poucos autores observaram melhora funcional de membros superiores com esta terapêutica. Para determinar se aplicações individualizadas de TxB-A melhoram a função no membro superior espástico de pacientes com hemiparesia secundária a AVC, acompanhamos 20 pacientes com história de AVC entre 6 meses

  15. Qualidade de vida em sobreviventes de acidente vascular cerebral: instrumentos de avaliação e seus resultados Quality of life in stroke survivors: assessment instruments and their outcomes

    Directory of Open Access Journals (Sweden)

    Juliana Ferreira Mota

    2008-01-01

    Full Text Available OBJETIVOS: Os objetivos deste estudo foram identificar os instrumentos genéricos e específicos utilizados na avaliação da qualidade de vida (QV e os seus resultados em sobreviventes de acidente vascular cerebral (AVC. MÉTODOS: Realizou-se revisão da literatura dos últimos dez anos, com população acima de 18 anos, nos bancos de dados MedLine e Lilacs, cujas publicações utilizassem instrumentos padronizados e validados no país de origem. Combinaram-se os descritores quality of life, cerebrovascular accident, stroke, QV e acidente cerebrovascular. RESULTADOS: Consideraram-se relevantes 96 estudos e 31 entram neste trabalho, de acordo com os critérios de inclusão. Foram encontrados cinco tipos diferentes de instrumentos genéricos/perfil, nove genérico/utility e dois específicos. O mais freqüente foi o SF-36, em 45,2% dos estudos. Observou-se que a baixa QV relacionou-se, principalmente, ao déficit da função física, à presença de depressão ou de seus sintomas, ser do sexo feminino e ser mais idoso. De modo geral, os sujeitos no pós-AVC possuíam pior QV do que aqueles que não sofreram o evento. CONCLUSÃO: Foram encontrados 16 instrumentos para avaliação da QV. A baixa QV foi prevalente nos sobreviventes pós-AVC e se correlacionou com a função física, a depressão, o sexo e a idade.OBJECTIVE: The purpose of this study is to identify generical and specific instruments used for valueing quality of life (QOL and their outcomes in stroke survivors. METHODS: Review of literature of last 10 years, with people above 18 years old, in MedLine and Lilacs database. The instruments used on the studies were validated for the their countries. 96 articles have been considered relevant and 31 were in accordance with inclusion criteria. Five kind of generic/profile, nine generic/utility and two specific instruments were found. The more frequent was SF-36, on the 45,2% of the studies. It has been observed that poverty in quality of

  16. Spinal vascular malformations in non-perimesencephalic subarachnoid hemorrhage

    NARCIS (Netherlands)

    Germans, M. R.; Pennings, F. A.; Sprengers, M. E. S.; Vandertop, W. P.

    2008-01-01

    OBJECTIVE: In patients with non-traumatic subarachnoid hemorrhage (SAH) and no evidence for a cerebral aneurysm on angiography, a frequent cause of the hemorrhage is perimesencephalic hemorrhage or other cerebral vascular pathology. In some patients no cause is found. The exact incidence of a spinal

  17. Non operative management of cerebral abscess

    Science.gov (United States)

    Batubara, C. A.

    2018-03-01

    Cerebral abscess is a focal intracerebral infection that begins as a localized area of cerebritis and develops into a collection of pus surrounded by a well-vascularized capsule. Patients typically present with varying combinations of aheadache, progressive neurologic deficits, seizures, and evidence of infection. Computed Tomography and Magnetic Resonance Imagingare the most important diagnostic tools in diagnosing cerebral abscess. The treatment of cerebral abscess has been a challenge. Small cerebralabscesses (managed by the use of intravenous mannitol (or hypertonic saline) and dexamethasone. Acute seizures should be terminated with the administration of intravenous benzodiazepines or by intravenous fosphenytoin. Anticonvulsants prophylaxis must be initiated immediately and continued at least one year due to high risk in the cerebral abscesses. Easier detection of underlying conditions, monitoring of the therapeutic progress, and recognition of complications have probably contributed to the improved prognosis.

  18. Cerebral monitoring during carotid endarterectomy – a comparison ...

    African Journals Online (AJOL)

    All patients had general anaesthesia and were operated on by the same vascular surgeon (JvM). All patients were evaluated preoperatively by an experienced sonographer. Cerebral monitoring during carotid endarterectomy – a comparison between electroencephalography, transcranial cerebral oximetry and carotid ...

  19. Hyperacute unilateral contrast-induced parotiditis during cerebral angiography

    Directory of Open Access Journals (Sweden)

    Song J. Kim, MD

    2018-02-01

    Full Text Available An uncommon complication of iodinated contrast administration is the development of bilateral sialadenitis. We report a unique case of hyperacute unilateral parotiditis during diagnostic cerebral angiography of the external carotid artery, which mimicked possible iatrogenic vascular event associated with cerebral endovascular procedures. Discussion includes the differential diagnosis, diagnostic studies, and treatments for this unusual condition.

  20. Cerebral aneurysms – an audit | Louw | SA Journal of Radiology

    African Journals Online (AJOL)

    We performed an audit to determine the profile of cerebral aneurysms at the Universitas Hospital Bloemfontein, the only government hospital with a vascular suite in the Free State and Northern Cape area. Two hundred and twenty-three government patients, diagnosed with cerebral aneurysms during the period 1 January ...

  1. Paradoxical embolisation and cerebral white matter lesions in dementia.

    NARCIS (Netherlands)

    Purandare, N.; Oude Voshaar, R.C.; McCollum, C.; Jackson, A.; Burns, A.

    2008-01-01

    The study aimed to examine the relationship between spontaneous cerebral emboli (SCE), patent foramen ovale (PFO) and white matter hyperintensities (WMH) on cerebral MRI in patients with Alzheimer's disease (AD) and vascular dementia (VaD). SCE were identified by transcranial Doppler of the middle

  2. Cerebral vasculitis associated with Schistosoma mansoni infection

    Directory of Open Access Journals (Sweden)

    Camuset Guillaume

    2012-09-01

    Full Text Available Abstract Background Cerebral involvement in schistosomiasis is not rare, but it is underdiagnosed because of the lack of clinical suspicion and the frequency of asymptomatic forms. Neurologic complications are generally supported by granuloma formation around ectopic eggs which have migrated to the brain. Moreover, vascular lesions and cerebral arteritis have been well documented in histopathological studies. Nevertheless, cerebral vasculitis in later stages of the Schistosoma mansoni infection have not yet been described in living subjects. Case presentation A 28-year-old french woman had a stroke linked with cerebral vasculitis, 6 monthes after returning from Burkina-Faso. At the same time, a S. mansoni disseminated infection was diagnosed. She suffered from a new stroke after undertaking praziquantel therapy, which lead us to associate the S. mansoni infection and cerebral vasculitis. Conclusion This is the first report of such association, since cerebral vasculitis has never been described in later stages of the S. mansoni infection. Although the causal link between the two pathologies could not be proved, we suggest that S. mansoni is able to cause severe vascular damage in cerebral vessels. Schistosomiasis must be investigated in the event of a brain infarct in young people, particularly in patients originating or returning from an endemic area.

  3. Demencia en la enfermedad de Alzheimer: un enfoque integral Dementia in Alzheimer's disease: a comprehensive approach

    Directory of Open Access Journals (Sweden)

    Víctor T. Pérez Martínez

    2005-08-01

    Full Text Available El substrato patológico de la principal de las demencias, lo constituyen las siguientes lesiones: la degeneración neurofibrilar abundante y difusa, las placas neuríticas y el depósito anormal de sustancia amiloide en el cerebro, causante de la toxicidad cerebral. La demencia en la enfermedad de Alzheimer cumple con un patrón clínico-topográfico de tipo cortical característico. Su diagnóstico definitivo es anatomopatológico, pero se puede establecer un diagnóstico probable basado en la clínica y en la evaluación neuropsicológica. No existe tratamiento efectivo concluyente para el deterioro cognitivo de la enfermedad de Alzheimer.The pathological substrate of the main dementia is composed of the following lesions: the diffuse and abundant neurofibrillar degeneration, the neuritic plaques and the abnormal deposit of amyloid substance in the brain, causing cerebral toxicity. Dementia in Alzheimer's disease accomplishes a clinicotopographic pattern of characteristic cortical type. Its definitive diagnosis is anatomopathological, but a probable diagnosis based on the clinic and the neuropsychological evaluation can be established. There is no a concluding effective treatment for the cognitive deterioration of Alzheimer's disease.

  4. Errores innatos del metabolismo: Enfermedades lisosomales

    Directory of Open Access Journals (Sweden)

    Caridad Menéndez Saínz

    2002-03-01

    Full Text Available Dentro de los errores innatos del metabolismo se encuentran las enfermedades de almacenamiento lisosomal o enzimopatías lisosomales, las cuáles se caracterizan por un déficit enzimático específico, la excreción de metabolitos por la orina y la acumulación de los compuestos no degradados en diferentes órganos y tejidos que ocasionan la disfución de éstos. Tienen un patrón de herencia autosómico recesivo, excepto para la enfermedad de Fabry y la enfermedad de Hunter en las que el patrón de herencia está ligado al cromosoma X. Estas enfermedades tienen una baja incidencia en general, aunque hay poblaciones donde algunas de ellas tienen una alta incidencia. Su importancia radica en la magnitud que representan como problema de salud, por la pobre calidad de vida de esos pacientes, así como su fallecimiento prematuro, motivo por el cual hay que evitar los nacimientos de nuevos niños afectados.Among the metabolism inborn errors, there are the lysosomal storage diseases or lysosomal enzymopathies that are characterized by an specific enzymatic deficiency, excretion of metabollites in urine and accumulation of non-degraded compounds in various organs and tissues causing their dysfunction. These diseases have a recessive autosomal heredity, except for Fabry´s disease and Hunter’s disease in which the pattern of heredity is chromosome X-linked. These diseases have a low incidence in general although there are populations where they show a high incidence. Their importance lies in what they represent as a health problem because of the poor quality of life of these patients and their early death, therefore, it is necessary to prevent the birth of new infants affected with these diseases.

  5. Las enfermedades de Ludwing Van Beethoven

    Directory of Open Access Journals (Sweden)

    Osvaldo Llanos López

    2007-08-01

    Full Text Available La extraordinaria genialidad y productividad musical de Beethoven no fue disminuida por la influencia de sus múltiples dolencias, sino que por el contrario, en períodos críticos, esta se vio incluso exacerbada. A la sordera, su enfermedad más conocida, pero de causa todavía no precisada, se agregaron otras enfermedades, algunas demostradas en la autopsia, como la cirrosis hepática, la nefropatía, la pancreatitis crónica y otros síndromes sin etiología demostrada, como sus alteraciones gastrointestinales, bronquiales, articulares y oculares. Estas enfermedades, que mortificaron seriamente su vida, pero que no frenaron su creatividad, no pudieron ser controladas por los mejores médicos de la época, con los limitados tratamientos disponibles. Los estudios y especulaciones acerca de su historia médica son abundantes en la literatura y no logran establecer tampoco una patología sistémica que explique al menos la mayoría de sus síndromes. El conocimiento más preciso apunta a que su sordera era de causa mixta, que su cirrosis hepática fue provocada por exceso de alcohol y que la causa de su muerte fue una insuficiencia hepática.

  6. A clinical study of cerebral vaso paralysis during a period of cerebral vasospasm after subarachnoid hemorrhage

    International Nuclear Information System (INIS)

    Watanabe, Toshiichi; Sasaki, Takehiko; Nakagawara, Jyoji

    2011-01-01

    We employ the 123 I-infinitum (Imp) single photon emission computed tomography (SPECT) dual table autoradiography (Arg) method and stereotactic extraction estimation (SEE) analysis 7 or 8 days after subarachnoid hemorrhage (SAH) onset to predict cerebral vasospasm. We report new findings of cerebral vasoparalysis during a period of cerebral vasospasm after SAH. From January 1, 2005 to April 30, 2008, we encountered 330 cases of aneurysmal SAH, and treated 285 cases. Of these, 65 were excluded as unsuitable for this study, for reasons such as lack of SPECT data, external decompression, admission over 7 days from SAH onset. We studied 220 cases treated by microsurgical clipping (n=178) or endovascular coil embolization (n=42). Vasoparalysis was defined as a rise in resting cerebral blood flow (CBF) and a loss of vascular reserve on SEE analysis of CBF-SPECT. Vasoparalysis occurred in 15 cases (6.8%). Of these, 9 cases (60.0%) had cerebral hematoma, temporary clips had been used in the operation for 8 cases (53.3%), 9 cases (60.0%) experienced postoperative cerebral infarction, and 3 cases (20.0%) had postoperative convulsions. Vasoparalysis occurs in relation to perioperative cerebral damage. In terms of the loss of vascular reserve following SAH, vasoparalysis resembles hemodynamic cerebral ischemia, although the conditions are quite different. Differentiating between these 2 conditions is important, as different forms of management are required. Dual table ARG and SEE analysis are very useful for the evaluating these 2 conditions. (author)

  7. Hydrostatic determinants of cerebral perfusion

    International Nuclear Information System (INIS)

    Wagner, E.M.; Traystman, R.J.

    1986-01-01

    We examined the cerebral blood flow response to alterations in perfusion pressure mediated through decreases in mean arterial pressure, increases in cerebrospinal fluid (CSF) pressure, and increases in jugular venous (JV) pressure in 42 pentobarbital anesthetized dogs. Each of these three pressures was independently controlled. Cerebral perfusion pressure was defined as mean arterial pressure minus JV or CSF pressure, depending on which was greater. Mean hemispheric blood flow was measured with the radiolabeled microsphere technique. Despite 30-mm Hg reductions in mean arterial pressure or increases in CSF or JV pressure, CBF did not change as long as the perfusion pressure remained greater than approximately 60 mm Hg. However, whenever perfusion pressure was reduced to an average of 48 mm Hg, cerebral blood flow decreased 27% to 33%. These results demonstrate the capacity of the cerebral vascular bed to respond similarly to changes in the perfusion pressure gradient obtained by decreasing mean arterial pressure, increasing JV pressure or increasing CSF pressure, and thereby support the above definition of cerebral perfusion pressure

  8. Absceso intramedular en paciente con enfermedad de Rendu-Osler-Weber Spinal abscess in a patient with hereditary hemorrhagic telangiectasia

    Directory of Open Access Journals (Sweden)

    Lorena V Maldonado

    2007-12-01

    Full Text Available La enfermedad de Rendu-Osler-Weber es una enfermedad autosómica dominante que se manifiesta por telangiectasias en piel y mucosas y malformaciones arteriovenosas en diversos órganos. El compromiso neurológico puede ocurrir por la presencia de malformaciones arterio-venosas cerebrales, hemorragia intracraneal, y más habitualmente por accidentes cerebrovasculares isquémicos y abscesos cerebrales secundarios a embolia paradojal, en pacientes con malformaciones arteriovenosas pulmonares. El absceso intramedular es una entidad rara, inusual como complicación de la enfermedad de Rendu-Osler-Weber. Presentamos el caso de una mujer de 56 años de edad, con antecedentes familiares de enfermedad de Rendu-Osler- Weber, que ingresó a Terapia Intensiva con cuadriplejia aguda e hipoxemia, en quien se diagnosticó fístulas arteriovenosas pulmonares y un absceso intramedular cervical.Rendu-Osler-Weber syndrome is an autosomal dominant disorder characterized by multiple skin and mucosal telangiectasis and multiorgan arteriovenous malformations. Neurological manifestations may occur because of cerebral arteriovenous malformations, intracranial hemorrhage, and most commonly by ischemic stroke and brain abscess secondary to paradoxical embolization in patients with pulmonary arteriovenous malformations. Intramedullary abscess is a rare, unusual condition, in Rendu-Osler-Weber syndrome. We report the case of a 56 years old woman, with a familial history of Rendu-Osler-Weber syndrome, admitted to intensive care with acute quadriplegia and hypoxemia. Our diagnosis was pulmonary arteriovenous malformations and intramedullary abscess.

  9. Cerebral energy metabolism in streptozotocin-diabetic rats

    NARCIS (Netherlands)

    Biessels, G.J.; Braun, K.P.J.; Graaf, de R.A.; Eijsden, van P.; Gispen, W.H.; Nicolaij, K.

    2001-01-01

    Aims/hypothesis. It is increasingly evident that the brain is another site of diabetic end-organ damage. The pathogenesis has not been fully explained, but seems to involve an interplay between aberrant glucose metabolism and vascular changes. Vascular changes, such as deficits in cerebral blood

  10. Pathological review of late cerebral radionecrosis

    International Nuclear Information System (INIS)

    Yoshii, Yoshihiko

    2008-01-01

    Late cerebral radionecrosis may be considered to be a specific chronic inflammatory response, although it is unknown whether the initial damage by brain irradiation is to an endothelial cell or a glial cell. I discuss the pathological specificity of late cerebral radionecrosis by studying the published literature and a case that I experienced. In late cerebral radionecrosis, there are typical coagulation necrosis areas containing fibrinoid necrosis with occlusion of the lumina and poorly active inflammatory areas with many inflammatory ghost cells, focal perivascular lymphocytes, hyalinized vessels, and telangiectatic vascularization near and in the necrotic tissue, and more active inflammatory areas formed as a partial rim of the reactive zone by perivascular lymphocytes, much vascularization, and glial fibrillary acidic protein (GFAP)-positive astrocytes at the corticomedullary border adjacent to necrotic tissue in the white matter. It is difficult to believe that coagulation necrosis occurs without first disordering the vascular endothelial cells because fibrinoid necrosis is a main feature and a diffusely multiple lesion in late cerebral radionecrosis. Because various histological findings do develop, progress, and extend sporadically at different areas and times in the irradiated field of the brain for a long time after radiation, uncontrolled chronic inflammation containing various cytokine secretions may also play a key role in progression of this radionecrosis. Evaluation of the mechanism of the development/aggravation of late cerebral radionecrosis requires a further study for abnormal cytokine secretions and aberrant inflammatory reactions. (author)

  11. Proposal for a universal definition of cerebral infarction.

    Science.gov (United States)

    Saver, Jeffrey L

    2008-11-01

    Cerebral infarction is a leading cause of disability and death worldwide but has no uniform international definition. Recent diagnostic advances have revised fundamental concepts in cerebral and cardiac ischemia. Cardiologists, already possessed of a nosologic framework distinguishing myocardial infarction from unstable angina on the basis of tissue state, promulgated a new "universal" tissue definition of myocardial infarction incorporating insights afforded by assays of cardiac troponin, a serum biomarker exquisitely sensitive to myocardial injury. Concurrently, vascular neurologists proposed a new tissue, rather than time, criterion to distinguish transient ischemia attack from cerebral infarction, responding to perspectives provided by diffusion MRI and cerebral blood volume CT, imaging biomarkers highly sensitive to neuronal injury. To complete this conceptual realignment, vascular neurology must now advance a clear, uniform, and operationalizable tissue definition of cerebral infarction. This review proposes cerebral infarction be defined as brain or retinal cell death due to prolonged ischemia. This definition categorizes both pannecrosis and neuronal dropout ("complete" and "incomplete" infarcts in classic neuropathologic terminology) as cerebral infarcts. Making the presence of any neuronal or glial cell death essential yields a definition of cerebral infarction that has high relevance to patients, physicians, and policymakers; is more easily applied in clinical practice; fosters action in acute care; harmonizes with myocardial ischemia classification; and focuses diagnostic evaluation on the cause of brain ischemia and the occurrence of end organ injury. The term cerebral infarction should be used when there is evidence of brain or retinal cell death due to cerebral ischemia.

  12. Enfermedades poco comunes: una prioridad de los sistemas de salud

    OpenAIRE

    RAP

    2017-01-01

    Las enfermedades poco comunes, incluidas las de origen genético, son aquellas enfermedades que tienen una prevalencia baja, menor de 5 casos por cada 10.000 habitantes en la comunidad, según la definición de la Unión Europea. Estas enfermedades tienen ciertas características comunes. Son, en su mayor parte, degenerativas y constituyen una prioridad de los sistemas de salud.

  13. Enfermedad periodental y nutrición

    OpenAIRE

    Abascal, Micaela

    2015-01-01

    Aunque no ponen en peligro la vida, las enfermedades dentales tienen un efecto pernicioso en la calidad de vida desde la infancia hasta la ancianidad, pues influyen en la autoestima, la capacidad para alimentarse, la nutrición y la salud. La salud bucal significa algo más que dientes en buen estado ,donde el estado nutricional cumple un rol importante dado que afecta a los dientes antes de que broten, aunque esa influencia es mucho menos importante que el efecto local de la die...

  14. La Enfermedad Celíaca

    OpenAIRE

    Cueto Rua, Eduardo Ángel; Nanfito, Gabriela; Guzmán, Luciana

    2006-01-01

    La Enfermedad Celíaca (EC) es la intolerancia alimentaria de orden genético más frecuente de la especie humana. En nuestro Servicio de Gastroenterología hemos diagnosticado más de 1900 casos en los últimos 34 años, y 92 y 73 nuevos casos en los años 2004 y 2005, respectivamente. La EC es el resultado de la interacción entre factores genéticos (constante absoluta) expresados en la mucosa intestinal y la respuesta i...

  15. Enfermedades del Aguacate en La Florida

    Directory of Open Access Journals (Sweden)

    Stevens H. E.

    1942-04-01

    Full Text Available El aguacate cultivado bajo las condiciones ambienciales de La Florida, está sujeto a ser atacado por varias enfermedades parasitarias. Algunas de estas son de menor importancia y no requieren métodos de represión especiales; otras al contrario son más severas y requieren atención cada año; y otras además están sujetas a las condiciones climatológicas, y su intensidad dependerá principalmente de las condiciones meteorológicas durante algunos períodos críticos en el crecimiento del árbol.

  16. Tuberculosis una enfermedad prevenible y curable

    OpenAIRE

    García-Goez, José Fernando; Bedoya Quintero, Yamile

    2013-01-01

    La tuberculosis (TB) es una de las infecciones mas importante a nivel mundial, pues causa un número importante de muertes a pesar de ser prevenible y curable La Organización Mundial de la Salud (OMS) estima que 1/3 de la población mundial se encuentra infectada por el Mycobacterium tuberculosis causante de la TB y anualmente se reportan 8.8 millones de casos nuevos de TB, que fallecen 3 millones de personas a consecuencia de esta enfermedad y entre un 10% y 12% de los pac...

  17. VASCULAR SURGERY

    African Journals Online (AJOL)

    2016-06-02

    Jun 2, 2016 ... with the literature from South Africa over the last four decades, and reflects the high rate of interpersonal violence in the country.14,15 As expected, cervical ... via the intact circle of Willis in young patients is the most likely explanation for the lack of strokes. Five patients were referred to the Durban vascular ...

  18. Vascular Disorders

    Science.gov (United States)

    ... All Topics A-Z Videos Infographics Symptom Picker Anatomy Bones Joints Muscles Nerves Vessels Tendons About Hand Surgery What is a Hand Surgeon? What is a Hand Therapist? Media Find a Hand Surgeon Home Anatomy Vascular Disorders Email to a friend * required fields ...

  19. Repercussão da pressão positiva expiratória final na pressão de perfusão cerebral em pacientes adultos com acidente vascular hemorrágico

    OpenAIRE

    Lima,Wildberg Alencar; Campelo,Antônio Roberto Leite; Gomes,Rodrigo Luís Mousinho; Brandão,Daniella Cunha

    2011-01-01

    A pressão positiva intratorácica pode levar a alterações hemodinâmicas com repercussão no compartimento intracraniano, alterando a pressão intracraniana e a pressão de perfusão cerebral. Esse efeito pode se tornar mais intenso quando utilizados elevados valores de pressão positiva expiratória final. OBJETIVO: Medir o impacto que diferentes valores de pressão positiva expiratória final causam na pressão intracraniana, na pressão de perfusão cerebral e pressão arterial média. MÉTODO: O estudo f...

  20. Enfermedad hipertensiva gestacional, algunos factores de riesgo

    Directory of Open Access Journals (Sweden)

    Karen Luz Torres Rojas

    2015-11-01

    Full Text Available Se realizó un estudio descriptivo de corte transversal, con el objetivo de describir  algunos factores de riesgo asociados a la Enfermedad Hipertensiva Gestacional (EHG, en la Clínica Comoro, del distrito  Dili,  en el período comprendido del 1 de junio de 2006 al 31 de mayo de 2007.  La muestra quedó constituida por 99 embarazadas  con diagnóstico  de hipertensión gestacional. Las variables estudiadas fueron: edad, paridad, factores de riesgo (antecedentes  familiares de  hipertensión arterial,  pielonefritis, obesidad, antecedentes de eclampsia, alcoholismo y tabaquismo, enfermedades crónicas asociadas y formas clínicas presentadas.  La EHG se presentó con más frecuencia en las pacientes del grupo de edad de 35 años y más, seguido por el grupo de 15-19 años. La nuliparidad predominó en las gestantes estudiadas. El factor de riesgo más frecuente fue el antecedente familiar de hipertensión arterial. La forma clínica que prevaleció fue la pre eclampsia-eclampsia.

  1. DIAGNÓSTICO CLÍNICO Y MANEJO DE LA TROMBOSIS VENOSA CEREBRAL. PRESENTACIÓN DE UN CASO CLÍNICO.

    Directory of Open Access Journals (Sweden)

    Yorman Rafael Flores Molina

    2011-01-01

    Full Text Available La Trombosis de los Senos Durales y/o Trombosis Venosa Cerebral, se considera una entidad poco frecuente de accidente cerebro vascular que usualmente ocurre en individuos jóvenes. Cada año, afecta a 5 personas por millón a nivel mundial y representa el 0.5 al 1% de todos los episodios de enfermedad cerebrovascular. Se describe el caso de un paciente masculino de 31 años, sin antecedentes patológicos conocidos, que consultó en el servicio de urgencias por cefalea holocraneana y movimientos tónico-clónicos generalizados; se le practicó Tomografía Axial Computarizada Cerebral y Arteriografía de 4 vasos, descartándose malformaciones arteriovenosas y/o aneurismas cerebrales. Se solicita Angioresonancia, que revela Imágenes de defecto sugestivas a Trombosis del Seno Longitudinal Superior, por lo que se indica anticoagulación con Heparina de Bajo Peso Molecular y Warfarina Sódica, obteniéndose una evolución favorable. A propósito de este caso, se realiza una revisión de la literatura, haciendo especial énfasis en su diagnóstico, factores de riesgo y controversias terapéuticas.

  2. United Cerebral Palsy

    Science.gov (United States)

    ... your local affiliate Find your local affiliate United Cerebral Palsy United Cerebral Palsy (UCP) is a trusted resource for individuals with Cerebral Palsy and other disabilities and their networks. Individuals with ...

  3. Employees with Cerebral Palsy

    Science.gov (United States)

    ... Resources Home | Accommodation and Compliance Series: Employees with Cerebral Palsy (CP) By Eddie Whidden, MA Preface Introduction Information ... SOAR) at http://AskJAN.org/soar. Information about Cerebral Palsy (CP) What is CP? Cerebral palsy is a ...

  4. Birth Defects: Cerebral Palsy

    Science.gov (United States)

    ... Loss > Birth defects & other health conditions > Cerebral palsy Cerebral palsy E-mail to a friend Please fill in ... this page It's been added to your dashboard . Cerebral palsy (also called CP) is a group of conditions ...

  5. Enfermedad valvular degenerativa canina: reporte de caso

    Directory of Open Access Journals (Sweden)

    Carmenza Janneth Benavides Melo

    2014-07-01

    Full Text Available En caninos, la enfermedad valvular degenerativa o endocardiosis es la patología cardiovascular con mayor prevalencia. Se caracteriza por regurgitación de la sangre hacia las aurículas, con disminución del gasto cardiaco, lo que lleva a sobrecarga de volumen con hipertrofia excéntrica e insuficiencia cardiaca congestiva. Este reporte tiene como objetivo describir los hallazgos clínicos y de necropsia de un canino, sugestivos de una endocardiosis valvular. El paciente ingresó por consulta externa a la Clínica Veterinaria Carlos Martínez Hoyos, de la Universidad de Nariño (Pasto, Colombia. Su propietario lo reportó enfermo desde hacía dos meses, con signos de enfermedad respiratoria, pérdida de peso y decaimiento. En el examen clínico se encontraron membranas mucosas muy pálidas, disnea inspiratoria, estertores, desdoblamiento de S2, soplo de regurgitación mesosistólico grado 4 y dilatación abdominal con signo de choque de onda positivo. En la necropsia se evidenció abundante cantidad de material de aspecto acuoso traslúcido en cavidad abdominal, torácica y pericárdica, corazón severamente aumentado de tamaño, redondeado, con engrosamiento de válvulas atrioventriculares, hígado con moderada disminución de tamaño y evidencia de lobulillación, riñones severamente disminuidos de tamaño y pálidos de superficie irregular con presencia de múltiples áreas quísticas en región corticomedular. Se tomaron muestras de estos tejidos y se fijaron en formol bufferado al 10 %, para después ser procesadas para análisis histopatólogico en el Laboratorio de Patología de la Universidad de Nariño, mediante la técnica de hematoxilina y eosina de rutina. De esta manera se diagnostica como enfermedad valvular degenerativa.

  6. La hipermocisteinemia un factor de riesgo de enfermedad cardiovascular, fácil de modificar

    Directory of Open Access Journals (Sweden)

    Beatriz E. Meneses Londoño

    2002-01-01

    Full Text Available The homicysteine (hcy, is an intermedia metabolity in the transformation of metionine to cysteine. Metabolic elimination of these substance depends on vitamins B6, B12 and folic acid and enzymes such like cistationine -sintase, and metilentetrahidrofolate reductase. The common denominators in heredity deficiency of one fo these enzymes or the ones taking part of the metabolism of the folate or the vitamin B12 are a significant raise of Hcy in blood and cardiovascular diseases. Since these observations, they began to relate the Hcy vith vascular disease. Researches in the last two decades point a moderate raise of Hcy as a risk factor in vascular alterations. This metabolity for mechanisms including activation of some ciagulation factors and inactivation of natural anticoagulants helps the thrombi forming and vascular endothelium damage. The raise of this substance is easy to midify through drug and diet media. Due to this, the Hcy takes part of an analytic parameter of growing use in clinical practice, in cardiovascular diseases patients, in the diagnosis and motitorizing of the response to anemia treatment caused by lack of vitamins B12 and/or folic acid, the value of the risk of having defects of the neural tube or espontaneus abortion, specially in cases where they are repetitive. A homocisteína (hcy, es un metabolito intermediario en la conversión de metionina a cisteína. La eliminación metabólica de esta sustancia es dependiente de las vitaminas B6, B12 y ácido fólico y de enzimas tales como la cistationina -sintasa, metionina sintasa y metilenotetrahidrofolato reductasa. Los denominadores comunes en las deficiencias hereditarias de una de estas enzimas o de las que intervienen en metabolismo del folato o de la vitamina B12 son el aumento severo de Hcy en sangre y las enfermedades cardiovasculares. A partir de estas observaciones, se empezó a relacionar Hcy en sangre y las enfermedades cardiovasculares. A partir de estas

  7. con enfermedad crónica

    Directory of Open Access Journals (Sweden)

    María del Refugio Zavala Rodríguez

    2007-01-01

    Full Text Available El propósito del estudio fue determinar el grado de correlación entre los niveles de fortaleza para la salud y de ansiedad-rasgo, en unamuestra de 200 pacientes integrada por medio de muestreo no probabilístico; los criterios de inclusión fueron: adultos de ambos génerosdiagnosticados con enfermedad crónica, con estudios de enseñanza básica y orientada. El marco teórico que guió la investigación es elModelo de Adaptación de Roy. El diseño fue descriptivo, transversal, correlacional. Se utilizó el cuestionario de fortaleza de S. Pollock y laescala de autoevaluación de ansiedad-rasgo de Spielberger; los instrumentos presentaron una consistencia interna aceptable con unAlpha de Cronbach de ,852 y ,813 respectivamente. La información se recabó de cuatro instituciones de salud ubicadas en los municipiosde Tampico-Cd. Madero Tamaulipas, México. El análisis de los datos se efectuó mediante estadística descriptiva e inferencial, se utilizó elpaquete estadístico SPSS versión 13. El rango de edad que predominó fue de 45 a 64 años (54%; el 55% fue del sexo femenino, el 48%cuenta con estudios de primaria, cerca del 90% padece de una enfermedad metabólica. El coeficiente de correlación de Spearman entrela fortaleza para la salud y la ansiedad-rasgo fue significativo (Œ,570, valor Œp,000. En la mayoría de la población participante se encontróun nivel moderado tanto de fortaleza (83% como de ansiedad (73%. El análisis de regresión múltiple indicó que la relación significativaentre estas dos variables no es afectada por la edad, el género o los años de evolución de la enfermedad crónica. Los datos de este estudiomuestran evidencia de que en los pacientes con enfermedades crónicas a mayor nivel de fortaleza menor nivel de ansiedad-rasgo. Estasituación invita a desarrollar más estudios de estos fenómenos, en la disciplina de enfermería, que sirvan como sustento teórico-prácticopara el diseño o la mejora de

  8. Ocurrencia de enfermedad cerebrovascular en pacientes hipertensos

    Directory of Open Access Journals (Sweden)

    María de la Concepción Orbay Araña

    2002-10-01

    Full Text Available Se realizó un estudio para establecer la relación entre la hipertensión arterial esencial y la enfermedad cerebrovascular, en 19 consultorios del Médico de la Familia del Policlínico Plaza de la Revolución. Se aplicó una encuesta a pacientes reevaluados como hipertensos, confeccionándose una base de datos para tratamiento en el sistema FOXBASE versión 5.0. Aplicamos prueba de asociación entre variables cualitativas que se distribuyen en Chi cuadrado. Se identificó el comportamiento de la hipertensión arterial atendiendo a grados, los grupos etáreos, el sexo, la raza y los factores de riesgo asociados. Se estableció igualmente la relación entre el control de la hipertensión arterial y la aparición de la enfermedad cerebrovascular y encontramos un 15 % de población hipertensa, predominando la moderada (36,88 %, con mayor representación los grupos etáreos de 55 a 64 años (38,29 % y de 45 a 54 (23,16 %, del sexo femenino (55,02 % y de la raza blanca (54,04 %. La ocurrencia de enfermedad cerebrovascular estuvo representada por el 4, 35 %, correspondiente a 71 pacientes, con mayor asociación a la hipertensión arterial severa. No resultó significativamente estadística la relación entre enfermedad cerebrovascular e hipertensión arterial.A study was conducted to establish the relationship between essential arterial hypertension and cerebrovascular disease in 19 family physician offices of "Plaza de la Revolución" Polyclinic. Those patientes reevaluated as hypertensive were surveyed. A database for treatment was created in the FOXBASE system, version 5.0. A Chi square test of association among qualitative variables, which are distributed, was applied. The behavior of arterial hypertension was identified according to degrees, age groups, sex, race and the associated risk factors. The relation between the control of arterial hypertension and the appearance of cerebrovascular disease was also established. It was found a 15 % of

  9. Doença de Moyamoya e anestesia com sevoflurano fora do centro cirúrgico: relato de caso Enfermedad de Moyamoya y anestesia con sevoflurano fuera del centro quirúrgico: relato de caso Moyamoya disease and sevoflurane anesthesia outside the surgery center: case report

    Directory of Open Access Journals (Sweden)

    Sheila Braga Machado

    2002-06-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: A doença de Moyamoya é uma desordem cerebrovascular progressiva que representa um desafio anestésico em virtude da precária circulação cerebral destes pacientes, constituindo-se numa importante causa de acidente vascular cerebral em indivíduos jovens. O objetivo deste relato é apresentar o caso de um paciente com doença de Moyamoya que foi submetido à anestesia geral com sevoflurano para procedimento diagnóstico fora do centro cirúrgico. RELATO DO CASO: Criança com 13 anos, estado físico ASA IV, portadora de doença de Moyamoya com seqüela neurológica após três acidentes vasculares cerebrais, insuficiência renal crônica e hipertensão arterial sistêmica, submetida à endoscopia digestiva alta. Em decúbito dorsal e após monitorização, realizou-se indução inalatória pela cânula de traqueostomia com sevoflurano (aumento gradual da concentração inspiratória até 6% e mistura de oxigênio/óxido nitroso a 50%. Um cateter venoso foi inserido para infusão de solução glicosada a 5%. Foi realizada ventilação controlada manual, sendo a manutenção da anestesia feita com sevoflurano a 4% e mistura de oxigênio/óxido nitroso a 50%. Ao final do procedimento os agentes anestésicos foram descontinuados simultaneamente e foi administrado oxigênio a 100%. A anestesia foi satisfatória, com boa estabilidade hemodinâmica, sem ocorrência de complicações durante o procedimento e com despertar precoce. CONCLUSÕES: O sevoflurano pode oferecer novas perspectivas para a anestesia inalatória em pacientes com doença neurológica que realizam procedimento ambulatorial, já que permite boa estabilidade hemodinâmica e despertar precoce, preservando a fisiologia cerebral.JUSTIFICATIVA Y OBJETIVOS: La enfermedad de Moyamoya es un desorden cerebrovascular progresivo que representa un desafío anestésico en virtud de la precaria circulación cerebral de estos pacientes, constituyéndose una importante

  10. Prognostic significance of MR angiography in patients with cerebral infarction

    International Nuclear Information System (INIS)

    Moon, Woong Jae; Kim, Jun Ho; Seo, Jeong Jin; Cho, Ki Hyun; Kim, Yun Hyeon; Kim, Jae Kyu; Kang, Heoung Keun

    1994-01-01

    This study was designed to evaluate the prognostic significance of Magnetic resonance angiography(MRA) in patients with cerebral infarction. Magnetic Resonance Imaging(MRI) and 2 dimensional or 3 dimensional Time-of-Flight MRA were performed subsequently in 83 patients with cerebral infarction proven by brain CT and clinical manifestations, using GE Signa Advantage 1.5 T. We classified the size of infarction on MRI as Extent I( 6 cm) and classified the intracranial vascular occlusion according to visualizations of intracranial vascular branches on MRA as Grade 0, Grade I, Grade II, Grade III. And we evaluated clinical outcomes of these patients according to Rankin's disability scale, compared with MRI and MRA. In 72 cases(86.8%), the larger the size of infarction on MRI, the more severe vascular occlusion on MRA, the worse the clinical outcomes were noted(p < 0.01). However, in 7 cases(8.4%) who showed huge cerebral infarction on MRI with low grade intracranial vascular occlusion on MRA, the clinical outcomes were improved. In 4 cases(4.8%) who noted small sized cerebral infarction on MRI with high grade vascular occlusion on MRA, the clinical outcomes were worsened. MRA provides additional useful information to that provided by MRI in predicting the prognosis of patients with cerebral infarction

  11. Cerebral palsy

    International Nuclear Information System (INIS)

    Truwit, C.L.; Barkovich, A.J.; Koch, T.; Ferreiro, D.

    1990-01-01

    This paper reviews cranial MR findings in patients with cerebral palsy (CP) to clarify and categorize this disorder. The MR images of 40 patients with clinical CP were retrospectively reviewed. All patients suffered either varying spastic plegias, hypotonicity, or choreoathetosis. Concomitantly, the patients suffered from static encephalopathy, developmental delay, and/or microcephaly. Twenty-four patients were born at or near term, 10 were premature, and incomplete birth histories were available in six. The MR images revealed mild to severe degrees of white matter damage in 24 patients (12 term, nine premature, three unknown)

  12. Subjetividad e interseccionalidad: experiencias de Enfermedad de Mujeres Negras con enfermedad falciforme

    Directory of Open Access Journals (Sweden)

    Eliana Costa Xavie

    2017-05-01

    Full Text Available El estudio tuvo el objetivo de conocer y analizar la historia de mujeres negras con enfermedad falciforme y comprender cómo la subjetividad de estas es construida y confrontada a partir de los sentidos subjetivos asociados con los marcadores de género, raza y clase social. Se trata de una investigación cualitativa en la que participaron 9 mujeres negras acompañadas por el Centro de Referencia de la Anemia Falciforme del Hospital de Clínicas de Porto Alegre. Las entrevistas semiestructuradas fueron analizadas por medio del análisis crítico del discurso. Los resultados mostraron que las mujeres negras perciben su enfermedad como condición de salud que estrecha los lazos entre su pertenencia racial y sus construcciones de género y de clase. El discurso de esas mujeres negras trascendió a la complejidad de la enfermedad crónica, transformándola y construyendo posibilidades que las potencializan como mujeres, madres y sujetos sociales. Las mujeres señalaron que la interseccionalidad de raza, género y clase social impulsa la ceguera pública de la mujer negra y de las cuestiones relacionadas con la población negra intensificando el sentimiento de invisibilidad.

  13. Vascular ultrasound.

    Science.gov (United States)

    Pilcher, D B; Ricci, M A

    1998-04-01

    Surgeon-interpreted diagnostic ultrasound has become the preferred screening test and often the definitive test for the diagnosis of arterial stenosis, aneurysm, and venous thrombosis. As a modality for surveillance, its noninvasive quality makes it particularly appealing as the test of choice to screen patients for abdominal aortic aneurysms or to perform follow-up examinations on those patients with a carotid endartectomy or in situ bypass grafts. The increasing reliance on intraoperative duplex imaging of vascular procedures demands that the surgeon learn the skills to perform the studies without a technologist or radiologist to interpret the examination.

  14. Cerebral angiographic findings in thromboangiitis obliterans

    International Nuclear Information System (INIS)

    No, Young J.; Lee, Eun M.; Kim, Jong S.; Lee, Deok H.

    2005-01-01

    Transient ischemic attacks (TIAs) or ischemic stroke may complicate thromboangiitis obliterans (TAO). However, there has been debate regarding the mechanism of ischemic stroke in TAO. We report the case of a patient with TAO who developed repeated TIAs. An angiogram showed multiple alternative areas of arterial occlusions in the distal segments of both middle cerebral arteries. Extensive collateral vessels around the occluded segment were also observed, which resembled the ''tree root'' or ''corkscrew'' vessels described in the peripheral arteries in TAO. Our patient illustrates that cerebral manifestations of TAO may occur with vascular changes that are identical with those encountered in the limb arteries in TAO. (orig.)

  15. Functional stability of cerebral circulatory system

    Science.gov (United States)

    Moskalenko, Y. Y.

    1980-01-01

    The functional stability of the cerebral circulation system seems to be based on the active mechanisms and on those stemming from specific of the biophysical structure of the system under study. This latter parameter has some relevant criteria for its quantitative estimation. The data obtained suggest that the essential part of the mechanism for active responses of cerebral vessels which maintains the functional stability of this portion of the vascular system, consists of a neurogenic component involving central nervous structures localized, for instance, in the medulla oblongata.

  16. Trastornos del sueño en las enfermedades neurodegenerativas

    Directory of Open Access Journals (Sweden)

    Dr. C. Marcelo Miranda

    2013-05-01

    Full Text Available Las enfermedades degenerativas del cerebro son cada vez más frecuentes, debido al envejecimiento de la población en Chile y en prácticamente todas las regiones del mundo. Las alteraciones del sueño son un componente importante cada vez mejor reconocido en sus manifestaciones clínicas, si bien frecuentemente ignorados en muchas de las evaluaciones. No obstante, es muy importante reconocer estos trastornos porque dificultan el manejo óptimo de estas complejas enfermedades. Por ejemplo, cuadros como el trastorno conductual del sueño REM (por Rapid Eye Movements, en Inglés, un componente de los ciclos del sueño que incluye el fenómeno de “actuar los sueños” se han configurado como potenciales biomarcadores de la presencia de la enfermedad de Parkinson. Por lo tanto, se trata no sólo de identificar trastornos y manifestaciones específicas dentro del contexto de las enfermedades ya aludidas, sino que también de utilizar estos trastornos clave como elementos importantes en el diagnóstico precoz de las mismas. En esta revisión analizamos los principales problemas relacionados al sueño que es posible observar en este tipo de enfermedades, y que forman parte de las consideraciones esenciales para un manejo óptimo, actualizado e integral de estas enfermedades (Parasomnias, enfermedades neurodegenerativas, apneas del sueño.

  17. Global Aphasia As A Predictor Of Mortality In The Acute Phase Of A First Stroke [afasia Global Prediz Mortalidade Na Fase Aguda De Um Primeiro Acidente Vascular Cerebral Isquêmico

    OpenAIRE

    de Oliveira F.F.; Damasceno B.P.

    2011-01-01

    OBJECTIVE: To establish whether vascular aphasic syndromes can predict stroke outcomes. METHOD: Thirty-seven adults were evaluated for speech and language within 72 hours after a single first-ever ischemic brain lesion, in blind association to CT and/or MR. RESULTS: Speech or language disabilities were found in seven (87.5%) of the eight deceased patients and twenty-six (89.7%) of the twenty-nine survivors. Global aphasia was identified in eleven patients, all with left hemisphere lesions (ni...

  18. Contribution of the cerebral SPECT in the field of evaluation of the hemodynamic cerebral vascular accident risk in the Limb shaking syndrome; Apport de la TEMP cerebrale dans le cadre de l'evaluation du risque d'AVC hemodynamique dans le Limb Shaking Syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Lauer, V.; Wolff, V.; Marescaux, C. [CHU de Strasbourg, Unite neurovasculaire, service de neurologie, 67 (France); Namer, I.J. [CHU de Strasbourg, service de biophysique et medecine nucleaire, 67 -Strasbourg (France)

    2010-07-01

    The limb shaking syndrome (L.S.S.) is characterized by uncontrollable shaking of members that are caused by a passage in the upright or by an hyper extension of the neck and occur in a patient with internal carotid stenosis. To investigate the pathophysiology of L.S.S. we used brain SPECT (SPECT-E.C.D. or H.M.P.A.O.) to measure cerebral perfusion in the supine position and standing in three patients. (N.C.)

  19. Desenvolvimento de protocolos de neuronavegação para estudos de estimulação magnética transcraniana e suas aplicações em voluntários controle e pacientes com acidente vascular cerebral

    OpenAIRE

    André Salles Cunha Peres

    2012-01-01

    Objetivos A estimulação magnética transcraniana (TMS, do inglês: Transcranial Magnetic Stimulation) e as imagens funcionais por ressonância magnética (fMRI, do inglês: functinal Magnetic Resonance Imaging) são duas técnicas não invasivas de investigação de atividade do sistema nervoso central. Porém essas duas técnicas utilizam estratégias diferentes para mensurar a atividade cerebral, sendo que a TMS avalia a resposta elétrica enquanto que a fMRI a resposta hemodinâmica. Nosso intuito nesse...

  20. Papel de la fisioterapia en la enfermedad de Alzheimer

    OpenAIRE

    Lallana Jiménez, Lucía

    2013-01-01

    La enfermedad de Alzheimer es una enfermedad neurodegenerativa que representa entre el 50% y el 60% de las demencias. Se caracteriza por déficits cognitivos, desorientación espacio-temporal y pérdida de memoria a corto plazo, lo cual da lugar a una dificultad en la realización de las tareas cotidianas por parte del enfermo. La enfermedad evoluciona a los largo de cuatro estadios: -Fase 1: se caracteriza por perdidas de memoria a corto plazo pero el paciente es todavía relativamente independie...

  1. La enfermedad de Alzheimer y los inhibidores de la colinesterasa

    OpenAIRE

    Carlos Luis Alpízar-Quesada; Catalina Morales-Alpízar

    2003-01-01

    La enfermedad de alzheimer (EA), es muy frecuente en la vejez donde se pierden, en forma lenta y progresiva, capacidades cognoscitivas y motoras. Esta enfermedad ha ido en aumento conforme se incrementa la expectativa de vida de la población. En los últimos años, descubrir un tratamiento efectivo para esta enfermedad ha sido un verdadero reto científico. A pesar de que su patología fue descrita hace algunos años, no hubo tratamiento disponible hasta hace poco tiempo. Desde principios de los n...

  2. Cerebral Palsy (For Teens)

    Science.gov (United States)

    ... Staying Safe Videos for Educators Search English Español Cerebral Palsy KidsHealth / For Teens / Cerebral Palsy What's in this ... do just what everyone else does. What Is Cerebral Palsy? Cerebral palsy (CP) is a disorder of the ...

  3. Neuroradiological findings in vascular dementia

    Energy Technology Data Exchange (ETDEWEB)

    Guermazi, Ali; Miaux, Yves; Suhy, Joyce; Pauls, Jon; Lopez, Ria [Synarc, Inc., Department of Radiology Services, San Francisco, CA (United States); Rovira-Canellas, Alex [Hospital General Universitari Vall d' Hebron, Unita de Resonancia Magnetica, Barcelona (Spain); Posner, Holly [Eisai, Inc., Teaneck, NJ (United States)

    2007-01-15

    There are multiple diagnostic criteria for vascular dementia (VaD) that may define different populations. Utilizing the criteria of the National Institute of Neurological Disorders and Stroke and Association Internationale pour la Recherche et l'Enseignement en Neurosciences (NINDS-AIREN) has provided improved consistency in the diagnosis of VaD. The criteria include a table listing brain imaging lesions associated with VaD. The different neuroradiological aspects of the criteria are reviewed based on the imaging data from an ongoing large-scale clinical trial testing a new treatment for VaD. The NINDS-AIREN criteria were applied by a centralized imaging rater to determine eligibility for enrollment in 1,202 patients using brain CT or MRI. Based on the above data set, the neuroradiological features that are associated with VaD and that can result from cerebral small-vessel disease with extensive leukoencephalopathy or lacunae (basal ganglia or frontal white matter), or may be the consequence of single strategically located infarcts or multiple infarcts in large-vessel territories, are illustrated. These features may also be the consequence of global cerebral hypoperfusion, intracerebral hemorrhage, or other mechanisms such as genetically determined arteriopathies. Neuroimaging confirmation of cerebrovascular disease in VaD provides information about the topography and severity of vascular lesions. Neuroimaging may also assist with the differential diagnosis of dementia associated with normal pressure hydrocephalus, chronic subdural hematoma, arteriovenous malformation or tumoral diseases. (orig.)

  4. Educação em saúde e família: o cuidado ao paciente, vítima de acidente vascular cerebral - DOI: 10.4025/actascihealthsci.v26i1.1663 Health education in family:nursing CVA patients - DOI: 10.4025/actascihealthsci.v26i1.1663

    Directory of Open Access Journals (Sweden)

    Ana Ruth Macêdo Monteiro

    2004-04-01

    Full Text Available O presente estudo objetiva identificar o conhecimento dos familiares de pacientes acometidos por AVC (Acidente Vascular Cerebral sobre a doença e sobre seus cuidados e, ainda, elaborar uma cartilha de orientação quanto aos cuidados domiciliares a esses pacientes. Participaram da presente pesquisa 50 familiares de pacientes acometidos por AVC, os quais estavam acompanhando os pacientes por um período mínimo de 3 dias. Os dados obtidos da análise dos depoimentos dos familiares estão agrupados em 3 categorias: conhecendo as famílias, identificando o conhecimento dos familiares, atendendo às solicitações dos familiares. A cartilha de orientação, elaborada de acordo com o levantamento das principais dúvidas e/ou dificuldades dos familiares, busca favorecer o processo educativo dessas famílias no ambiente hospitalar, promovendo, assim, seu envolvimento nesse processo. A importância de um trabalho nesse sentido está baseada na possibilidade de uma maior compreensão dos problemas vivenciados pelos pacientes acometidos por AVC e por suas famílias, auxiliando, dessa forma, o enfermeiro a desenvolver ações visando minimizá-los e tornar a situação menos traumática para ambos.The present study aims to identify the knowledge of CVA (Cerebral Vascular Accident patients' close relatives on the disease and its specific cares; and also, to elaborate a guide for the home care of those patients. The present research evaluated family members from 50 CVA patients. These relatives were taking care of the patients for at least 3 days. The data obtained from the testimonies analysis are grouped in three categories: acquainting the families; identifying the family’s knowledge; assisting family’s requests. The guide, organized according to the relatives' main doubts and difficulties, intends to help the educational process of those families in the hospital’s atmosphere, promoting their engagement in the process. This work makes possible a

  5. Factores de riesgo en la enfermedad coronaria

    Directory of Open Access Journals (Sweden)

    Francisco Grajales

    1988-02-01

    Full Text Available

    We performed a case-control study comparing 40 cases of clinically, electrocardiographically and enzymatically proven myocardial infarction with 16 controls matched for age, sex and Institution. We found association between the myocardial infarction and cigarette smoking, high blood pressure, cholesterol above 250 mg/dl, triglycerides above 150 mg/dl, uric acid over 8 mg/dill men or 6 mg/dill women, family history of diabetes or coronary heart disease, sedentary Life style, amount of coffee drinking and use of birth-control pills. These factors were synergistic. The high prevalence of smoking In the general population leads to the suggestion that It Is the most Important risk factor and that It could explain the greater number of cases of coronary disease, even If the association was not strong. Any public health actions aimed at reducing the frequency of this disease should include smoking reduction.

    Mediante un estudio de casos y controles, se compararon 40 pacientes con infarto del m 10- cardio comprobado clínica, electrocardiográfica y enzimáticamente, con 16 controles equiparados por edad, sexo e Institución; se comprobó asociación con el hábito de fumar, la presión arterial elevada, el colesterol de 250 ó más mg/dl; los triglicéridos de 150 ó más mg/dl, el ácido úrico de 8 ó más mg/dl en hombres y de 6 ó más mg/dl en mujeres; los antecedentes familiares de diabetes y enfermedad coronarla; la vida sedentaria; la Ingestión de café y el uso de anticonceptivos orales; también se demostró el sinergismo de dichos factores.

    Por la elevada prevalencia de fumadores en la población general se presume que el hábito de fumar fue el

  6. Correlation of angiography and MR imaging in cerebral vasculitis

    International Nuclear Information System (INIS)

    Cloft, H.J.; Phillips, C.D.; Dix, J.E.; McNulty, B.C.; Kallmes, D.F.; Zagardo, M.T.

    1999-01-01

    Purpose: MR imaging and cerebral angiography were correlated in patients with primary angiitis of the central nervous system (PACNS) to assess the relative roles of these imaging modalities in the diagnosis. Material and Methods: In 9 patients, MR imaging and angiography were compared with regard to the relative involvement of each major vascular territory. Vascular territories assessed were the anterior, middle, and posterior cerebral arteries, and the posterior fossa. Results: All patients had angiographic findings consistent with vasculitis in multiple vascular territories. MR findings ranged from normal to diffusely abnormal. One patient had a completely normal MR investigation. Of 50 territories affected by vasculitis on angiography, 17 (34%) were normal on MR. Conclusion: Relative to cerebral angiography, MR imaging is a poor indicator of the presence or absence of PACNS. Angiography is indicated when clinical suspicion of PACNS is strong, regardless of the findings on MR. (orig.)

  7. Enfermedad cardíaca y embarazo

    Directory of Open Access Journals (Sweden)

    Ana G. Múnera-Echeverri

    2018-01-01

    Full Text Available Resumen: La enfermedad cardíaca complica el 1 al 4% de todos los embarazos. Durante la gestación ocurren cambios hemodinámicos importantes, que pueden llevar a la descompensación de la paciente con alteración estructural cardíaca previa. Sin embargo, la mayoría puede tener una gestación exitosa. Los pilares principales del manejo son el diagnóstico anatómico, la evaluación preconcepcional para intervenir antes de la gestación a las pacientes que lo requieran, la estratificación del riesgo materno-fetal, la optimización hemodinámica, y la administración de medicamentos seguros a las menores dosis posibles, la consejería genética y el pronóstico de la madre a largo plazo. Con base en lo anterior se diseña un plan de manejo, de acuerdo con la clasificación del riesgo materno y fetal, en el que define la frecuencia del seguimiento clínico, los métodos de imágenes y laboratorio, y el posible momento y vía del parto. El manejo es multidisciplinario y las pacientes con riesgo alto, posibilidad de deterioro hemodinámico o que requieran algún tipo de intervención deben ser remitidas en forma temprana a centros especializados con experiencia suficiente. Summary: Heart disease complicates 1 to 4% of all pregnancies. During pregnancy there are important hemodynamic changes that can lead to decompensation in a patient with previous cardiac structural alteration. However, the majority of patients can have a successful pregnancy. The primary keys to managing these patients are: knowledge of the Anatomy of the disease, evaluation before pregnancy, identify the maternal-fetal risk, optimize hemodynamically the patient, use safe drugs at the lowest doses, genetic counseling and prognosis of the mother in the long term. Based on these points, it is important to make a management plan based upon the maternal and fetal risk, defining the frequency of clinical follow-up, specifically outlining the clinical routines, diagnostic imaging

  8. [The magneto-, photo- and laser therapy of headaches in patients with vascular brain lesions].

    Science.gov (United States)

    Troshin, V D; Miasnikov, I G; Belousova, T E

    1994-01-01

    To manage vascular cephalalgia, a combined approach is proposed: segmentally oriented magnetic, photo- and photomagnetic therapy plus intravenous laser treatment. The effect was directly correlated with cerebral hemodynamic condition, damage to vegetative innervation segmental-peripheral link and physiotherapeutic factors.

  9. Cerebral blood flow and cerebral oxygen metabolism in thalamic hemorrhage

    International Nuclear Information System (INIS)

    Yasui, Nobuyuki; Asakura, Ken

    1987-01-01

    Cerebral blood flow (CBF), cerebral oxygen consumption (CMRO 2 ), oxygen extraction fraction (OEF) and cerebral blood volume (CBV) were studied in 20 cases of thalamic hemorrhage using positron CT and 15 O labeled gas steady-state inhalation method. CBF reduction was limited around the thalamus in the small sized hematoma. CBF were significantly diminished in the mean cortical, parietal, temporal, basal ganglia and thalamic area ipsilateral and cerebellar cortex contralateral to the medium sized hematoma. There was bilateral and diffuse CBF reduction in the large sized hematoma which was caused by increased intracranial pressure. CMRO 2 value were similary changed as CBF. OEF change showed within normal limit. Diffuse CBV reduction was observed in the large sized hematoma. This reduction was the result of decreased vascular bed caused by mass effect of the hematoma and hydrocephalus. Effect of surgical treatment such as ventricular drainage and hematoma evacuation were also discussed in correlation to CBF in some case using positron and single photon ECT. (author)

  10. Vascular Variations Associated with Intracranial Aneurysms.

    Science.gov (United States)

    Orakdogen, Metin; Emon, Selin Tural; Somay, Hakan; Engin, Taner; Is, Merih; Hakan, Tayfun

    2017-01-01

    To investigate the vascular variations in patients with intracranial aneurysm in circle of Willis. We used the data on 128 consecutive intracranial aneurysm cases. Cerebral angiography images were analyzed retrospectively. Arteries were grouped as anterior cerebral arterial system (ACS), posterior cerebral arterial system (PCS) and middle cerebral arterial system (MCS) for grouping vascular variations. Lateralization, being single/multiple, gender; and also any connection with accompanying aneurysms" number, localization, dimension, whether bleeding/incidental aneurysm has been inspected. Variations were demonstrated in 57.8% of the cases. The most common variation was A1 variation (34.4%). The rate of variations was 36.7%, 24.2% and 10.2% respectively in ACS, PCS and MCS. MCS variations were significantly higher in males. Anterior communicating artery (ACoA) aneurysm observance rates were significantly higher and posterior communicating artery (PCoA) aneurysm and middle cerebral artery (MCA) aneurysm observance rates were significantly lower when compared to "no ACS variation detected" cases. In "PCS variation detected" cases, PCoA aneurysm observance rates and coexistence of multiple variations were significantly higher. The rate of vascular variations in patients with aneurysms was 57.8%. Arterial hypoplasia and aplasia were the most common variations. ACS was the most common region that variations were located in; they were mostly detected on the right side. Coexistence of ACoA aneurysm was higher than PCoA and MCA aneurysms. In the PCS variations group, PCoA aneurysms were the most common aneurysms that accompanying the variation and multiple variations were more common than in the other two groups. The variations in MCS were most common in males.

  11. CITICOLIN IN THE TREATMENT OF STROKE AND VASCULAR COGNITIVE DISORDERS

    Directory of Open Access Journals (Sweden)

    Vladimir Anatol'evich Parfenov

    2009-01-01

    Full Text Available Citicolin (ceraxon is used as a neuroprotector in the treatment of acute stroke and vascular cognitive disorders. Experimental animal studies have demonstrated that citicolin reduces the extent of cerebral infarct and increases the degree of functional recovery. A few clinical trials have provided evidence for the efficacy of intravenous or oral citicolin used within the first 24 hours of ischemic stroke or cerebral hemorrhage in recovery of neurological functions. Citicolin is effective in memory and behavioral disorders in elderly patients with chronic cerebrovascular diseases. The use of citicolin has been found to be safe in stroke and vascular cognitive disorders

  12. El seguro obligatorio contra enfermedades e invalidez

    Directory of Open Access Journals (Sweden)

    Gustavo Gómez Hurtado

    1943-05-01

    Full Text Available No es desconocido este importante tema médico-social entre los colegas federados. Algunas publicaciones de "Heraldo Médico", entre otras; el interesante artículo del doctor Fidel Torres León, publicado en este mismo órgano en agosto de 1940, nos han traído interesantes puntos de discusión al respecto; pero parece que no despertaron más que un entusiasmo momentáneo. Sin embargo, a las medidas de solidaridad social frente a los enemigos eternos del hombre: la Enfermedad, la Invalidez y la Muerte, han tenido necesidad de recurrir los pueblos más ricos y más cultos del mundo. Es tiempo de que los médicos colombianos, como guardianes de la salud y del porvenir fisiológico de la raza, nos encarguemos de plantear estos problemas al Estado y a la opinión pública.

  13. Enfermedades Metabólicas del Hueso

    Directory of Open Access Journals (Sweden)

    Efraim Otero Ruiz

    1993-08-01

    Full Text Available

    Señoras, señores:

    Como se trata de una homologación de afectos y preferencias personales por los autores, colombianos y mexicanos, de esta obra; y como los dos hemos trajinado largo rato en esto de ser editores de revistas y libros, decidimos, el Dr. Jorge Maldonado y yo, echar a la suerte para ver quién hablaba en esta presentación formal del libro de Antonio Iglesias y colaboradores, titulado “Enfermedades metabólicas del hueso”.

    Yo gané la partida pero con la advertencia de que lo que aquí exprese, lo que se diga encomiásticamente del libro, de su autor principal y de su elenco de coautores, viene compenetradamente de nosotros dos y, para usar una expresión muy de la generación torera y española del 98, es como si hubiese sido escrito al alimón.

    Realmente, la aparición de esta publicación en sus dos volúmenes completos (el primero había aparecido en junio de este año marca un hito en la literatura médica escrita en nuestro idioma, ya que no se contaba con un texto castellano dedicado al hueso y sus enfermedades metabólicas. Ella no sólo denota el interés inveterado del autor principal, iniciado hace ya muchos años con la reumatología y el colágeno y preocupado después asiduamente por la osteoporosis y las enfermedades óseas, sino que le otorga además una especial capacidad de liderazgo ya que pudo, en un tiempo relativamente corto y sumergido en las responsabilidades directivas de un Instituto Nacional de Salud, lograr que una nómina ilustre, de 3 autores principales y 47 colaboradores, fuera construyendo, paso a paso, capítulo por capítulo, esta gran síntesis que destaca el esqueleto óseo como órgano de vital importancia metabólica y al tiempo asiento de muy disímiles patologías, muchas de ellas con causas aún no totalmente aclaradas.

    En efecto, durante muchos siglos se pensó en el esqueleto como estructura casi inerte que servía solamente de soporte o sostén a la

  14. Tuberculosis como enfermedad ocupacional Tuberculosis as occupational disease

    OpenAIRE

    Alberto Mendoza-Ticona

    2012-01-01

    Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Perú están normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos aún no han sido suficientemente socializados. En este trabajo se presenta información sobre el riesgo de adquirir tuberculosis ...

  15. NEUROIMÁGENES EN ENFERMEDAD DE PARKINSON: ROL DE LA RESONANCIA MAGNÉTICA, EL SPECT Y EL PET

    Directory of Open Access Journals (Sweden)

    Dr. Carlos Juri C.

    2016-05-01

    Full Text Available La enfermedad de Parkinson (EP es un trastorno neurodegenerativo, caracterizado por la pérdida progresiva de neuronas monoaminérgicas, en especial dopaminérgicas. En las últimas décadas, se han desarrollado diversos biomarcadores para el estudio de los pacientes con EP. Un grupo de estos biomarcadores son las neuroimágenes, como la resonancia magnética cerebral y las imágenes moleculares, en particular, la tomografía por emisión de positrones (PET y la tomografía por emisión de fotón único (SPECT. Estas técnicas, se han empleado en el diagnóstico temprano de la EP, así como para mejorar el diagnóstico diferencial entre EP y otros parkinsonismos y para monitorizar la progresión de la enfermedad. Con estos fines, se ha utilizado la capacidad de estas técnicas para evaluar la pérdida de la actividad dopaminérgica y de otras vías monoaminérgicas, al igual que la posibilidad de valorar la inflamación y el metabolismo a nivel cerebral. Recientemente, los nuevos criterios para el diagnóstico de la EP reconocen al PET y SPECT como herramientas valiosas en el diagnóstico de esta enfermedad. En este artículo, se analiza la utilidad actual de las técnicas de imagen en pacientes con EP y otros parkinsonismos y sus potenciales aplicaciones futuras.

  16. Vascular neurocognitive disorders and the vascular risk factors

    Directory of Open Access Journals (Sweden)

    Carmen V. Albu

    2018-04-01

    Full Text Available Dementias are clinical neurodegenerative diseases characterized by permanent and progressive transformation of cognitive functions such as memory, learning capacity, attention, thinking, language, passing judgments, calculation or orientation. Dementias represent a relatively frequent pathology, encountered at about 10% of the population of 65-year olds and 20% of the population of 80-year olds. This review presents the main etiological forms of dementia, which include Alzheimer form of dementia, vascular dementia, dementia associated with alpha-synucleionopathies, and mixed forms. Regarding vascular dementia, the risk factors are similar to those for an ischemic or hemorrhagic cerebrovascular accident: arterial hypertension, diabetes mellitus, dyslipidemia, smoking, obesity, age, alcohol consumption, cerebral atherosclerosis/ arteriosclerosis. Several studies show that efficient management of the vascular risk factors can prevent the expression and/ or progression of dementia. Thus, lifestyle changes such as stress reduction, regular physical exercise, decreasing dietary fat, multivitamin supplementation, adequate control of blood pressure and serum cholesterol, and social integration and mental stimulation in the elderly population are important factors in preventing or limiting the symptoms of dementia, a disease with significant individual, social, and economic implications.

  17. Eriptosis: mecanismos moleculares y su implicación en la enfermedad aterotrombótica

    Directory of Open Access Journals (Sweden)

    Fernando Manzur-Jattin

    2016-05-01

    Conclusiones: La eriptosis se caracteriza por la disminución del volumen celular, la vesiculación y la translocación del fosfatidil serina hacia la superficie externa de la membrana plasmática. Las alteraciones en la distribución de los fosfolípidos favorecen los procesos de adhesión celular a la pared vascular, conllevando al deterioro de la microcirculación, lo cual puede ocasionar importantes trastornos a nivel cardiovascular. La comprensión y el esclarecimiento de la eriptosis pueden ser esenciales para la búsqueda de nuevas dianas terapéuticas, encaminadas a ofrecer otras alternativas farmacológicas en el tratamiento de la enfermedad cardiovascular.

  18. Enfermedad de moyamoya, macrocefalia y déficit intelectual en un adolescente

    Directory of Open Access Journals (Sweden)

    José Vargas Díaz

    2013-03-01

    Full Text Available El patrón moyamoya se caracteriza por un estrechamiento crónico progresivo de la porción terminal de la arteria carótida interna o sus principales ramas terminales principalmente. Los niños con moyamoya típicamente se presentan con ictus arteriales isquémicos, o con accidentes isquémicos transitorios. Se presenta el caso clínico de un adolescente, con déficit intelectual y macrocránea, con evidencia en los estudios de resonancia magnética nuclear cerebral de infartos arteriales isquémicos a repetición, e imágenes sugestivas de moyamoya, y se comprueba el patrón moyamoya por angiografía de sustracción digital. Comprobado el diagnóstico de enfermedad de moyamoya, el objetivo con este enfermo fue tratar de mejorar la irrigación cerebral, planteando la necesidad de someter al paciente a cirugía de revascularización, y, mientras esto no fuera posible, usar aspirina como antiagregante plaquetario, en un intento de impedir o disminuir el riesgo de nuevos infartos cerebrales o de accidentes transitorios isquémicos a repetición.

  19. [Cerebral hemodynamics in patients with neurosensory hearing loss before and after magnetotherapy].

    Science.gov (United States)

    Morenko, V M; Enin, I P

    2001-01-01

    Magnetotherapy effects on cerebral hemodynamics were studied using rheoencephalography (REG). When the treatment results and changes in cerebral hemodynamics were compared it was evident that normalization or improvement of vascular status in vertebrobasilar and carotid territories registered at REG results in better hearing. This confirms the role of vascular factor in pathogenesis of neurosensory hypoacusis of different etiology and effectiveness of magnetotherapy in such patients.

  20. Enfermedad de Niemann Pick tipo-A. Presentación de 12 casos

    Directory of Open Access Journals (Sweden)

    Jorge Zarco-Román

    2017-05-01

    Full Text Available INTRODUCCIÓN: la enfermedad de Niemann Pick tipo A es una enfermedad hereditaria de depósito lisosomal, debida a un déficit de la enzima esfingomielinasa ácida, lo que da lugar a la acumulación de esfingomielina en las células del sistema reticuloendotelial y nervioso central. OBJETIVO: se describe el curso de la enfermedad de Niemann Pick tipo A en 12 pacientes: tres niños y nueve niñas, con edades entre 3 a 33 meses. MATERIAL Y MÉTODOS: estudio retrospectivo efectuado con base en la información de los expedientes de 12 pacientes, evaluados mediante un examen físico completo, oftalmológico, análisis de laboratorio, ultrasonido de abdomen, tomografía axial computarizada o resonancia magnética nuclear cerebral, radiografías de tórax, ecocardiograma, electroencefalograma, potenciales evocados auditivos y visuales, serie esofagogastroduodenal y serie ósea. Se obtuvo información sobre enfermedades intercurrentes y causas de muerte. RESULTADOS: la sintomatología comenzó en promedio a los 5.9 meses (2 a 16 meses y el diagnóstico definitivo se realizó a la edad de los 15.6 meses (3 a 33 meses a través del cuadro clínico sugestivo, con presencia de células espumosas en el aspirado de médula ósea 12/12 (100% y deficiencia de la enzima esfingomielinasa ácida en 12/12 pacientes (100%; la biopsia hepática fue sugestiva de enfermedad por atesoramiento en 5/12 (41.6%. Las manifestaciones clínicas por orden de frecuencia fueron: hepatoesplenomegalia y afección neurológica en 12/12 (100%, alteración pulmonar 11/12 (91.6%, hematológica 9/12 (80%, oftalmológica con mancha rojo cereza 9/12 (75%, ósea 6/12 (50%, y cardiaca 4/12 (33.3%. Únicamente hubo antecedente de consanguinidad en 4 familias (33.3%. CONCLUSIONES: el curso clínico de la enfermedad de Niemann Pick tipo A es muy similar entre los pacientes afectados, el primer dato clínico detectado es la hepatoesplenomegalia. Los pacientes están asintomáticos los primeros

  1. Compromiso vascular en la encefalitis herpética

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Cañas

    1997-01-01

    Full Text Available Describimos el caso de un paciente de 30 años de edad que desarrolla una encefalitis fatal par Herpes simple, en cuyos hallazgos de necropsia se destaca un compromiso vascular cerebral secundario. Se discute In posibilidad de que en la encefalitis herpética pueden presentarse dos tipos de compromiso vascular: uno reconocido desde hace tres décadas, la vasculomielinopatía diseminada, y otro, una forma de vasculitis séptica.

  2. Vascular and hypoxic tissue lesions in cranial computerized tomography and their differential diagnosis

    Energy Technology Data Exchange (ETDEWEB)

    Kuckein, D

    1982-09-01

    CT findings and differential diagnosis in cerebral infarctions caused by vascular stenosis or occlusion, by emboli or arterial thrombosis are discussed; also in cerebral and sinus venous thrombosis. Brain damage due to hypoxia, to a combination of hypoxia and sinus venous thrombosis or to one of hypoxia and hyperpyrexia are presented.

  3. Desigualdades sociales en la mortalidad de enfermedades por causas externas, tumores, enfermedades metabólicas en el departamento de Caldas 2010-2013

    OpenAIRE

    Marín Ocampo, Angela María

    2017-01-01

    Objetivo. Determinar las desigualdades sociales en la mortalidad de enfermedades por causas externas, enfermedades metabólicas y tumores en los municipios del departamento de Caldas en el período 2010-2013.

  4. Respuesta inmune en las enfermedades del periodonto : desde salud hasta enfermedad y sus implicaciones terapéuticas

    OpenAIRE

    Botero Torres, Javier Enrique

    2009-01-01

    Los cambios estructurales en las enfermedades periodontales, considerando desde gingivitis hasta periodontitis, son el resultado de un evento inflamatorio, que es iniciado y perpetuado por bacterias por largos períodos de tiempo. Una serie de eventos celulares y moleculares ocurren en diferentes grados de complejidad tan pronto las bacterias comienzan a acumularse alrededor de los dientes. No obstante, aunque las bacterias son necesarias para iniciar la enfermedad periodontal, es la respuesta...

  5. Magnetic resonance angiography in suspected cerebral vasculitis

    International Nuclear Information System (INIS)

    Demaerel, Philippe; De Ruyter, Nele; Wilms, Guido; Maes, Frederik; Velghe, Beatrijs

    2004-01-01

    The purpose of this study was to determine the technical capacity and diagnostic accuracy of 3D time-of-flight magnetic resonance angiography (MRA) in suspected cerebral vasculitis in a retrospective analysis of MRA and digital subtraction angiography (DSA) in 14 young patients with clinical and/or radiological suspicion of cerebral vasculitis. A total of nine arteries were evaluated in each patient. Consensus review of DSA by three observers was the reference standard. The sensitivity for detecting a stenosis varied from 62 to 79% for MRA and from 76 to 94% for DSA, depending on the observer. The specificity for detecting a stenosis varied from 83 to 87% for MRA and from 83 to 97% for DSA. Using the criterion ''more than two stenoses in at least two separate vascular distributions'' to consider the examination as being true positive, the false-positive rates for MRA and DSA were comparable. MRA plays a role as the first angiographical examination in the diagnostic work-up of suspected cerebral vasculitis. When more than two stenoses in at least two separate vascular distributions are depicted on MRA, DSA is not expected to add a significant diagnostic contribution in a patient with suspected cerebral vasculitis. DSA remains necessary when MRA is normal or when less than three stenoses are seen. (orig.)

  6. Magnetic resonance angiography in suspected cerebral vasculitis

    Energy Technology Data Exchange (ETDEWEB)

    Demaerel, Philippe; De Ruyter, Nele; Wilms, Guido [Department of Radiology, Universitair Ziekenhuis, KU Leuven, 3000, Leuven (Belgium); Maes, Frederik [Department of Medical Imaging Computing, Universitair Ziekenhuis, KU Leuven, 3000, Leuven (Belgium); Velghe, Beatrijs [Department of Radiology, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk (Belgium)

    2004-06-01

    The purpose of this study was to determine the technical capacity and diagnostic accuracy of 3D time-of-flight magnetic resonance angiography (MRA) in suspected cerebral vasculitis in a retrospective analysis of MRA and digital subtraction angiography (DSA) in 14 young patients with clinical and/or radiological suspicion of cerebral vasculitis. A total of nine arteries were evaluated in each patient. Consensus review of DSA by three observers was the reference standard. The sensitivity for detecting a stenosis varied from 62 to 79% for MRA and from 76 to 94% for DSA, depending on the observer. The specificity for detecting a stenosis varied from 83 to 87% for MRA and from 83 to 97% for DSA. Using the criterion ''more than two stenoses in at least two separate vascular distributions'' to consider the examination as being true positive, the false-positive rates for MRA and DSA were comparable. MRA plays a role as the first angiographical examination in the diagnostic work-up of suspected cerebral vasculitis. When more than two stenoses in at least two separate vascular distributions are depicted on MRA, DSA is not expected to add a significant diagnostic contribution in a patient with suspected cerebral vasculitis. DSA remains necessary when MRA is normal or when less than three stenoses are seen. (orig.)

  7. Pseudotumoral delayed cerebral radionecrosis

    International Nuclear Information System (INIS)

    Ciaudo-Lacroix, C.; Lapresle, J.

    1985-01-01

    A 60 year-old woman with a scalp epithelioma underwent radiotherapy, the dose being 57 Gray. A first epileptic seizure occurred twenty months later. Neurological examination revealed signs of left hemisphere involvement. γEG, angiography, CT scans, demonstrated a pseudotumoral avascular process. On account of the localisation, the patient being right-handed, no surgical procedure was performed. In spite of corticotherapy and anticonvulsive treatment, seizures recurred and neurological signs slowly progressed. The patient died, 22 months after the first seizure, of an associated disseminated carcinoma with cachexia. Neuropathological examination showed a massive lesion presenting all the features of delayed radionecrosis in the left hemisphere: situated mainly in the white matter; numerous vascular abnormalities; wide-spread demyelination; disappearance of oligoglial cells. The Authors recall the clinical and anatomical aspects of this condition for which the only successful treatment is surgical removal when location and size of the lesion permit. Finally, the mechanisms which have been proposed to explain this delayed cerebral radionecrosis are discussed [fr

  8. Pseudotumoral delayed cerebral radionecrosis

    Energy Technology Data Exchange (ETDEWEB)

    Ciaudo-Lacroix, C; Lapresle, J [Centre Hospitalier de Bicetre, 94 - Le Kremlin-Bicetre (France)

    1985-01-01

    A 60 year-old woman with a scalp epithelioma underwent radiotherapy, the dose being 57 Gray. A first epileptic seizure occurred twenty months later. Neurological examination revealed signs of left hemisphere involvement. ..gamma..EG, angiography, CT scans, demonstrated a pseudotumoral avascular process. On account of the localisation, the patient being right-handed, no surgical procedure was performed. In spite of corticotherapy and anticonvulsive treatment, seizures recurred and neurological signs slowly progressed. The patient died, 22 months after the first seizure, of an associated disseminated carcinoma with cachexia. Neuropathological examination showed a massive lesion presenting all the features of delayed radionecrosis in the left hemisphere: situated mainly in the white matter; numerous vascular abnormalities; wide-spread demyelination; disappearance of oligoglial cells. The Authors recall the clinical and anatomical aspects of this condition for which the only successful treatment is surgical removal when location and size of the lesion permit. Finally, the mechanisms which have been proposed to explain this delayed cerebral radionecrosis are discussed.

  9. Lesiones bucales relacionadas con las enfermedades digestivas

    Directory of Open Access Journals (Sweden)

    José A. Pacho Saavedra

    2006-09-01

    Full Text Available Muchas de las lesiones de la mucosa en la cavidad bucal están relacionadas con trastornos anatómicos y funcionales de los órganos del aparato digestivo; algunas forman parte del cuadro clínico de la entidad y otras aparecen como complicaciones de estas. Generalmente son de orígenes inmunológicos, nutricionales o carenciales. Estas lesiones son difíciles de tratar, por lo que es importante conocer las características clínicas que faciliten una adecuada interpretación y al mismo tiempo ofrecer una conducta terapéutica correcta. Se presenta una revisión actualizada de las características semiológicas de las lesiones bucales que forman parte del cuadro clínico de diversas enfermedades digestivas, con el fin de que los médicos generales, clínicos, estomatólogos y gastroenterólogos puedan diagnosticarlas y brindar mejor orientación y tratamiento a los pacientes.Many of the lesions of the mucosa in the oral cavity are related to anatomical and functional disorders of the organs of the digestive system. Some of them are part of the clinical picture of the entity and others appear as complications of them. Generally, they have an immunological, nutritional, or deficiency origin. These lesions are difficult to be treated and that's why it is important to know the clinical characteristics making easy an adequate interpretation, and to follow a suitable therapeutic conduct at the same time. An updated review of the semiological features of the oral lesions corresponding to the clinical picture of diverse digestive diseases is presented, so that the general physicians, clinicians, stomatologists and gastroenterologists be able to diagnose and give a better guidance and treatment to the patients.

  10. A schizophrenic patient with cerebral infarctions after hemorrhagic shock

    Directory of Open Access Journals (Sweden)

    Youichi Yanagawa

    2013-01-01

    Full Text Available We herein report the fourth case of cerebral infarction, concomitant with hemorrhagic shock, in English literature. A 33-year-old male, who had been diagnosed with schizophrenia and given a prescription for Olanzapine, was discovered with multiple self-inflicted bleeding cuts on his wrist. On arrival, he was in hemorrhagic shock without verbal responsiveness, but his vital signs were normalized following infusion of Lactate Ringer′s solution. The neuroradiological studies revealed multiple cerebral ischemic lesions without any vascular abnormality. He was diagnosed with speech apraxia, motor aphasia, and dysgraphia, due to multiple cerebral infarctions. As there was no obvious causative factor with regard to the occurrence of cerebral infarction in the patient, the hypoperfusion due to hemorrhagic shock, and the thromboembolic tendency due to Olanzapine, might have acted together to lead to the patient′s cerebral ischemia.

  11. Lo Nuevo ante la Enfermedad de Parkinson

    Directory of Open Access Journals (Sweden)

    Juan Mendoza Vega

    1990-12-01

    Full Text Available

    Entre los cuadros patológicos más incapacitantes, pero también menos mortíferos y que, por consiguiente, afligen por más largo tiempo al paciente, se halla la enfermedad de Parkinson. El temblor y las alteraciones del tono muscular llegan, en la mayoría de los casos, a interferir notoriamente con las más elementales labores de la vida diaria, si no se instaura tratamiento que tenga éxito.

    Sustancias como la Carbidopa y Levodopa, trajeron hace más de un decenio, renovadas esperanzas a los enfermos de Parkinson; desde hace un par de años los experimentos del grupo mexicano encabezado por el doctor Ignacio Madrazo (autoinjerto de médula suprarrenal en la cabeza del núcleo caudado y los intentos real izados en varios países para implantar en zonas del cerebro tejidos obtenidos de fetos, reabrieron las discusiones y avivaron las esperanzas de tratamiento quirúrgico, que habían comenzado con los éxitos de las lesiones talámicas estereotáxicas en las cuales fueron pioneros los doctores Tallairach y Cooper hace ya cuarenta años.

    Como quinto volumen de la serie Neurological Diseases and Therapy (“Enfermedades neurológicas y su terapéutica” acaba de aparecer un libro en el cual se revisan los diversos aspectos de la enfermedad de Parkinson a la luz de los más recientes conocimientos y avances. Los doctores William C. Koller, del Departamento de Neurología de la Universidad de Kansas, y George Paulson, del Colegio de Medicina de la Universidad Estatal de Ohio, dirigieron el grupo de 70 científicos de todo el mundo (entre ellos, por supuesto, quienes trabajan en México y España que en 30 capítulos y 600 páginas pasan revista a los métodos de diagnóstico, los agentes farmacológicos, los métodos quirúrgicos, las medidas dietéticas, el tratamiento de la conducta y la terapia física para esta clase de enfermos.

    En lo relacionado con la valoración clínica, resaltan el uso de grabaciones en video

  12. Prognosis after cerebral ischaemia of arterial origin: clinical characteristics and genetic information

    NARCIS (Netherlands)

    Achterberg, S.

    2013-01-01

    Background. Patients who have suffered from cerebral ischemia have a high risk of recurrent vascular events. Predictive models based on classical risk factors typically have limited prognostic value. Given that cerebral ischemia has a heritable component, addition of genetic information might

  13. Exercise induces cerebral VEGF and angiogenesis via the lactate receptor HCAR1

    DEFF Research Database (Denmark)

    Morland, Cecilie; Andersson, Krister A.; Haugen, Oyvind P.

    2017-01-01

    -like cells along intracerebral microvessels. Activation of HCAR1 enhances cerebral vascular endothelial growth factor A (VEGFA) and cerebral angiogenesis. High-intensity interval exercise (5 days weekly for 7 weeks), as well as L-lactate subcutaneous injection that leads to an increase in blood lactate...

  14. a enfermedades laborales en España, 2004

    Directory of Open Access Journals (Sweden)

    Ana M. García García

    2007-01-01

    Full Text Available Fundamento: El registro de enfermedades profesionales en España resulta insuficiente para valorar el impacto de las enfermedades de origen laboral en nuestro país. En el presente estudio se estima la mortalidad por enfermedades laborales y sus costes en base a riesgos atribuibles estimados en la literatura internacional. Métodos: Se aplican estimaciones de riesgo atribuible para la mortalidad de origen laboral calculadas por Nurminen y Karjalainen (Finlandia, 2001 al total de muertes por las enfermedades y grupos de edad relevantes en España y por comunidades autónomas en 2004. Se calculan los años potenciales de vida y de vida laboral perdidos. A partir de estos últimos, se estiman los costes actualizados de la pérdida de vida productiva debida a las muertes por enfermedades laborales en España. Resultados: Según nuestras estimaciones, en 2004 se habrían producido en España cerca de 16.000 muertes por enfermedades relacionadas con exposiciones laborales, la mayoría en hombres (87%. Estas muertes habrían causado cerca de 152.000 años potenciales de vida perdidos y algo más de 47.000 años potenciales de vida laboral perdidos, lo que conllevaría un coste actualizado en pérdidas de productividad entre 580 y 1.000 millones de euros. Conclusiones: En 2004 el registro de enfermedades profesionales en España sólo recogió dos muertes por esta causa. Sin embargo, los resultados del presente estudio ponen de manifiesto la importancia de las condiciones de trabajo como determinantes de muertes evitables en la población y la inminente necesidad de sistemas de vigilancia y prevención adecuados para afrontar en toda su magnitud este problema para la salud pública.

  15. Cerebral hemodynamics in adult ischemic-type patients with moyamoya disease compared with those of atherothrombotic middle cerebral artery occlusion

    International Nuclear Information System (INIS)

    Idei, Masaru; Yamane, Kanji; Nishida, Masahiro; Manabe, Kazufumi; Yokota, Akira

    2005-01-01

    We measured regional cerebral blood flow (rCBF) in adult ischemic-type patients with moyamoya disease and in patients with atherothrombotic middle cerebral artery occlusion (MCAO) to investigate cerebral hemodynamics in adult ischemic-type of moyamoya disease. In this study we measured rCBF and regional cerebro-vascular response (rCVR) using acetazolamide by Xe-non-enhanced CT. Our subjects consisted of 15 adult ischemic-type patients with moyamoya disease and 27 atherothrombotic stroke patients with proximal occlusion of the middle cerebral artery. The region of inter est was conducted in the anterior cerebral artery, middle cerebral artery and posterior cerebral artery territories as well as basal ganglia regions. rGBF was preserved in all regions of patients with moyamoya disease. However, rCVR severely decreased in the anterior circulation territory in patients with moyamoya disease compared with those of MCAO. These results suggest that rCBF in the anterior circulation territory of adult ischemic-type patients with moyamoya disease is preserved by vasodilation of the cerebral arteries, while cerebral hemodynamic reserve capacity is severely reduced. The results indicated that basal moyamoya vessels are dilated. These findings may be one of the reasons why stroke occurs more frequently in adult than child patients with moyamoya disease. (author)

  16. Acidente vascular cerebral de etiologia rara com indicação cirúrgica urgente: caso clínico Stroke of a rare etiology with need of urgent surgery: case report

    Directory of Open Access Journals (Sweden)

    Ana Vieira Baptista

    2012-03-01

    Full Text Available Doente de 19 anos com quadro de febre com 8 dias de evolução e posterior instalação súbita de afasia, hemiparésia esquerda e alterações do comportamento. Aumento das proteínas de fase aguda no estudo analítico. TAC e RMN crânio-encefálicas revelaram lesão isquémica temporo-parietal direita. Ecocardiograma excluiu endocardite. Eco-döppler e angio-TAC carotídeo-vertebrais mostraram formação vegetante, móvel com a pulsação cardíaca, na artéria carótida comum direita. Submetido, de urgência, a cirurgia carotídea. Intraoperatoriamente constatou-se a presença de trombo ligeiramente aderente à artéria carótida comum e na dependência de lesão da íntima subjacente, tendo-se procedido à sua exérese e a arteriorrafia primária. Aponta-se como etiologia mais provável do quadro, uma vasculite secundária a infecção por HSV1 (infecção activa ou por Rickettsia conorii.19 years old patient with fever for 8 days associated with sudden aphasia, left hemiparesis and abnormal behavior. Increased acute phase proteins in the analytical study. Head CT scan and MRI revealed a right temporo-parietal ischemic lesion. An echocardiogram excluded endocarditis. Ultrasound and CT angiography scanning of the extracranial cerebral circulation showed a vegetative formation, mobile with the heartbeat, in the right common carotid artery. Submitted, urgently, to carotid surgery. Intraoperatively, a slightly adherent thrombus to the common carotid artery was found and in the dependence of an underlying injury to the intima. The thrombus was ressected and a primary arteriorrhaphy performed. It is pointed out a vasculitis secondary to HSV1 (active infection or to Rickettsia conorii infection as the most likely etiology of the clinic.

  17. The pathology and pathophysiology of vascular dementia.

    Science.gov (United States)

    Kalaria, Raj N

    2017-12-19

    Vascular dementia (VaD) is widely recognised as the second most common type of dementia. Consensus and accurate diagnosis of clinically suspected VaD relies on wide-ranging clinical, neuropsychological and neuroimaging measures in life but more importantly pathological confirmation. Factors defining subtypes of VaD include the nature and extent of vascular pathologies, degree of involvement of extra and intracranial vessels and the anatomical location of tissue changes as well as time after the initial vascular event. Atherosclerotic and cardioembolic diseases combined appear the most common subtypes of vascular brain injury. In recent years, cerebral small vessel disease (SVD) has gained prominence worldwide as an important substrate of cognitive impairment. SVD is characterised by arteriolosclerosis, lacunar infarcts and cortical and subcortical microinfarcts and diffuse white matter changes, which involve myelin loss and axonal abnormalities. Global brain atrophy and focal degeneration of the cerebrum including medial temporal lobe atrophy are also features of VaD similar to Alzheimer's disease. Hereditary arteriopathies have provided insights into the mechanisms of dementia particularly how arteriolosclerosis, a major contributor of SVD promotes cognitive impairment. Recently developed and validated neuropathology guidelines indicated that the best predictors of vascular cognitive impairment were small or lacunar infarcts, microinfarcts, perivascular space dilation, myelin loss, arteriolosclerosis and leptomeningeal cerebral amyloid angiopathy. While these substrates do not suggest high specificity, VaD is likely defined by key neuronal and dendro-synaptic changes resulting in executive dysfunction and related cognitive deficits. Greater understanding of the molecular pathology is needed to clearly define microvascular disease and vascular substrates of dementia. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. Enfermedad granulomatosa crónica

    Directory of Open Access Journals (Sweden)

    Vianed Marsán Suárez

    Full Text Available La enfermedad granulomatosa crónica (EGC es una inmunodeficiencia primaria de la fagocitosis. Se presenta un paciente de 13 años de edad que a partir el mes de nacido presentó infecciones recurrentes: diarreas, neumonías, tuberculosis pulmonar, gingivo-estomatitis, celulitis, adenitis, abscesos cutáneos y hepáticos recidivantes. Al examen físico presentó una disminución severa del peso y la talla para la edad, palidez cutáneo-mucosa, periodontitis crónica, hiperlaxitud, aumento del hemiabdomen derecho y adenopatías generalizadas. Los estudios inmunológicos mostraron concentraciones normales de las inmunoglobulinas (Ig séricas IgM: 0,98 g/L (0,69 - 2,69 g/L, IgA: 2,76 g/L (1,58 - 3,94 g/L e IgE: 11,70 UI/ml (hasta 50 UI/mL, respectivamente, y ligeramente aumentadas de IgG: 17,2 g/L (7,81 - 15,30 g/L, C3 y C4 normales: 1,28 g/L (0,9 - 1,7 g/L y 0,30 g/L (0,2 - 0,4 g/L, respectivamente. Las subpoblaciones linfocitarias T CD3, CD4 y CD8 positivas estuvieron normales: 62 % (52 - 78 %, 45 % (25 - 48 % y 15 % (9 - 35 %, y los linfocitos B CD19 positivos estuvieron normales: 24 % (8 - 24 %. El índice opsonofagocítico mostró valores normales en los tiempos 15 y 60 min: 35 % (22,99 - 53,95 % y 12,50 % (6,63 - 28,4 3%. La prueba de reducción de nitroazul de tetrazolium espontánea y con agente inductor (Cándida albicans fue negativa. Se concluyó como una EGC ligada al cromosoma X. El tratamiento incluyó el drenaje de los abscesos hepáticos recidivantes, uso de antimicrobianos y antimicóticos potentes e interferón gamma, con lo que disminuyó la frecuencia e intensidad de las infecciones. El diagnóstico y el tratamiento precoces de la EGC disminuyen la morbilidad y mortalidad de estos enfermos.

  19. Enfermedades pulmonares intersticiales en el niño

    Directory of Open Access Journals (Sweden)

    Roberto Razón Behar

    Full Text Available Las enfermedades pulmonares intersticiales en el niño, comprenden un gran y heterogéneo grupo de raras enfermedades difusas pulmonares de morbilidad variada. Se caracterizan por cambios inflamatorios y fibróticos que causan remodelación de las paredes alveolares y de las vías respiratorias distales, y ocasionan un defecto restrictivo funcional y una alteración en el intercambio gaseoso, con hipoxemia progresiva. Son muchas las enfermedades que pueden afectar al intersticio pulmonar y múltiples las formas etiológicas causadas por una variedad de procesos patológicos, que incluyen, factores genéticos, asociación a enfermedades sistémicas, así como a respuestas inflamatorias o fibróticas a diferentes estímulos. Sin embargo, algunas veces su origen es desconocido, y se catalogan entonces como idiopáticas. Los neumólogos pediátricos han tratado de clasificar los casos de las enfermedades pulmonares intersticiales en las diferentes categorías descritas originalmente en adultos, pero, en realidad, existen formas del adulto que no se observan en la infancia, y formas únicas de presentación pediátrica. Se señala la importancia del conocimiento de estas entidades, particularmente las de origen desconocido o idiopáticas.

  20. FERTILIDAD Y EMBARAZO EN PACIENTES CON ENFERMEDADES INFLAMATORIAS INTESTINALES

    Directory of Open Access Journals (Sweden)

    ANDRÉS YARUR U., DR.

    2015-09-01

    Full Text Available Las Enfermedades Inflamatorias Intestinales (EII son entidades crónicas del tracto digestivo, que afectan frecuentemente a pacientes en edad reproductiva. Debido a las características de estas enfermedades y su tratamiento, existen múltiples desafíos. En este artículo, revisamos la evidencia más reciente con respecto a fertilidad y embarazo en pacientes con EII. En general, existe evidencia de que pacientes con EII tienen una mayor tasa de complicaciones durante el embarazo con respecto a pacientes sin EII. Sin embargo, esta diferencia está directamente asociada al grado de actividad de la enfermedad. La mayor parte de los fármacos hoy usados en el tratamiento de EII son considerados seguros durante el embarazo y se recomienda continuarlos, sobre todo considerando que el mayor riesgo de complicaciones está asociado a una enfermedad activa. Sin embargo es importante considerar las opciones caso a caso. Las dos grandes excepciones son metotrexato y talidomida que están completamente contraindicadas. La recomendación más importante es educar a toda paciente con EII en edad reproductiva, explicando que el embarazo debe llevarse a cabo cuando la enfermedad esté controlada y que la probabilidad de complicaciones está relacionada con el grado de actividad y severidad de la EII. Los médicos tratantes deben educar a las pacientes, enfatizando el seguimiento de los controles y tratamiento.

  1. ACTUALIZACIÓN EN LA ENFERMEDAD DE PARKINSON

    Directory of Open Access Journals (Sweden)

    Dr. Raúl Martínez-Fernández.

    2016-05-01

    Full Text Available La enfermedad de Parkinson es un trastorno neurodegenerativo complejo y de presentación heterogénea. Aunque aún no se dispone de ningún fármaco que enlentezca la progresión de la enfermedad, existe un arsenal terapéutico extenso y eficaz para el control sintomático en cada una de sus fases, por lo que es importante realizar un diagnóstico preciso así como un correcto manejo de fármacos que garantice un estado óptimo en los paciente que la sufren, lo que resultará en una mejora en su calidad de vida. Además, dado que es el trastorno neurodegenerativo más frecuente tras la enfermedad de Alzheimer y que su factor de riesgo principal es la edad, la enfermedad de Parkinson supone, cada vez más, un reto de salud pública en nuestras sociedades occidentales progresivamente envejecidas. Esta revisión pretende actualizar los aspectos clínicos y diagnósticos fundamentales de la enfermedad de Parkinson así como las principales estrategias terapéuticas disponibles.

  2. MTHFR and ACE Gene Polymorphisms and Risk of Vascular and Degenerative Dementias in the Elderly

    Science.gov (United States)

    Pandey, Pratima; Pradhan, Sunil; Modi, Dinesh Raj; Mittal, Balraj

    2009-01-01

    Focal lacunar infarctions due to cerebral small vessel atherosclerosis or single/multiple large cortical infarcts lead to vascular dementia, and different genes and environmental factors have been implicated in causation or aggravation of the disease. Previous reports suggest that some of the risk factors may be common to both vascular as well as…

  3. ESTRÉS Y ENFERMEDAD. Enfoque psiconeuroinmunoendocrino

    Directory of Open Access Journals (Sweden)

    Alfredo Jácome Roca

    2010-09-01

    Full Text Available

    Resumen

    Objetivo: hacer una revisión de los mecanismos moleculares del estrés y del papel que en él juegan sistemas reguladores como el hormonal, el neuropsicológico y el inmunológico.

    Métodos: Aunque no se hizo una búsqueda exhaustiva, sí se consultó la bibliografía más citada por autores de trayectoria investigativa en el tema.

    Resultados: Se seleccionaron los 50 artículos más relevantes sobre el estrés y enfermedad que se relacionaran con el enfoque psiconeuroinmunoendocrino.

    Discusión: El “síndrome de adaptación general” como respuesta al estrés descrito por Selye en 1936, ha sido estudiado desde entonces para comprender mecanismos y sistemas involucrados. En las situaciones de estrés –agudo como crónico- se activan los sistemas endocrino, nervioso autónomo e inmunológico para responder a una amenaza real o imaginaria, generando cambios neuropsicológicos, cardiovasculares y metabólicos. Dicha respuesta al estrés comienza en el sistema límbico con la liberación de la hormona hipotalámica CRH, que estimula la producción de ACTH y de cortisol, mientras que el sistema neurovegetativo libera epinefrina.

    En el estrés crónico, el sistema permanece activo con niveles altos o bajos de cortisol en sangre, lo que podría llevar a depresión, ataques de pánico, estrés postraumático, ataques de asma, hipertiroidismo, trastornos menstruales o exacerbación de una artritis reumatoide y muchas otras patologías. La región promotora del gen transportador de la serotonina modera la influencia de los eventos estresantes de la vida en la depresión en los humanos.

    Un estilo de vida inadecuado y el estrés crónico generan numerosas patologías de la vida moderna y llevan a una cotidianidad disfuncional. Para mejorar esta situación hay nuevos procedimientos diagnósticos, se han elaborado fármacos y se han diseñado estrategias para controlar la sobrecarga

  4. La tuberculosis pulmonar, enfermedad reemergente en Cuba

    Directory of Open Access Journals (Sweden)

    Margarita González Tapia

    2014-08-01

    Full Text Available Sr. Editor: La tuberculosis es una de las enfermedades remergentes en Cuba; por ello en todas las provincias cubanas se trabaja con mucha fuerza, dedicación y profesionalidad con respecto a esta problemática. En este contexto, resulta muy acertada la publicación del artículo “Algunas variables clínico-epidemiológicas de la tuberculosis pulmonar. Puerto Padre, 2008-2012”, que salió en el Vol.38 No.6.01 del mes de junio de 2013 de la Revista Electrónica Dr. Zoilo E. Marinello Vidaurreta; tanto por el significado social que reviste la divulgación de este tema, como por el propio resultado de la investigación realizada. La historia de la tuberculosis es un tema apasionante. En pocas enfermedades es posible documentar su estrecha relación con la historia de la propia humanidad como en la que nos ocupa. Existen evidencias paleológicas de tuberculosis vertebral en momias egipcias que datan aproximadamente del año 2400 a.C. La tuberculosis se ha conocido a través de la historia, con los nombres de: tisis, consunción, escrófula, mal de Pott, plaga blanca y mal del rey.1 En el artículo se plantea como conclusión que la tendencia de la tuberculosis en el quinquenio de estudio es estacionaria, pero en los últimos cuatro años tiende al ascenso. En los casos diagnosticados de tuberculosis en este quinquenio más de dos tercios correspondieron al sexo masculino y mayores de 45 años, las ocupaciones que más prevalecieron fueron recluso, desocupado, ama de casa y jubilado. Los factores de riesgo que más se relacionaron fueron el albergamiento prolongado en instituciones cerradas, el alcoholismo, y la edad mayor de 65 años; la forma clínica de mayor incidencia en casi la totalidad de los pacientes fue la pulmonar y, dentro de ella, los casos con baciloscopia positiva. Hubo fallas en el diagnóstico, ya que alrededor de la mitad de los casos se diagnosticaron en la atención secundaria y con un tiempo de demora de más de dos meses de

  5. Effects of Milrinone continuous intravenous infusion on global cerebral oxygenation and cerebral vasospasm after cerebral aneurysm surgical clipping

    Directory of Open Access Journals (Sweden)

    Mohamed A. Ghanem

    2014-01-01

    Conclusions: Milrinone improved significantly the global cerebral oxygenation and reduced the incidence of cerebral vasospasm during the dangerous period of cerebral spasm after cerebral aneurysm clipping.

  6. Tuberculosis, una Enfermedad de Ayer, de Hoy y del Futuro

    Directory of Open Access Journals (Sweden)

    Rafael Vargas

    2013-09-01

    Full Text Available La tuberculosis es una enfermedad tan antigua como la humanidad. A pesar de los avances en el conocimiento de su fisiopatología y en el desarrollo de medicamentos antituberculosos, todavía es una enfermedad común que afecta a una gran proporción de la población mundial. En los últimos años han aumentado los problemas relacionados con la morbi-mortalidad, lo cual se refleja en el incremento de la coinfección con VIH, el aumento de casos de neurotuberculosis y la mayor mortalidad en pacientes con tuberculosis. En el presente artículo se presenta una revisión de aspectos microbiológicos, epidemiológicos y clínico-terapéuticos de la enfermedad.

  7. Manifestaciones neuroftalmológicas en la enfermedad de Parkinson

    Directory of Open Access Journals (Sweden)

    Yoel Nicomedes Rodríguez Martín

    Full Text Available La enfermedad de Parkinson es un desorden neurodegenerativo progresivo provocado por un déficit de dopamina que desencadena importantes alteraciones motoras y no motoras. Dentro de estas, un considerable grupo constituye motivo de interés para el neuroftalmólogo. La enfermedad ha sido siempre más reconocida por sus alteraciones motoras. El objetivo fundamental de esta revisión es hacer énfasis en el diagnóstico de las afectaciones visuales en la enfermedad de Parkinson y de esta forma mejorar en lo posible la calidad de vida de los pacientes. Se realizó una amplia búsqueda en PUBMED y se revisaron 60 artículos relacionados con el tema, publicados entre los años 1984 y 2012.

  8. Microembolism after cerebral angiography

    International Nuclear Information System (INIS)

    Manaka, Hiroshi; Sakai, Hideki; Nagata, Izumi

    2000-01-01

    Acute microemboli are detected more precisely with the recently developed diffusion-weighted MR imaging (DWI). We happened to obtain 24 DWIs after 350 diagnostic cerebral angiographies in 1999. DWIs after cerebral angiographies showed bright lesions in 7 patients (28%), of whom 6 had no neurological symptoms after cerebral angiography. Seven of the 24 patients had risk factors for arteriosclerosis. Only one patient had embolic events due to angiography. Microemboli related to cerebral angiographies are inevitable in some patients. Most are silent, however, we should investigate the cause of microemboli and should make cerebral angiography safer. (author)

  9. Bioprinting for vascular and vascularized tissue biofabrication.

    Science.gov (United States)

    Datta, Pallab; Ayan, Bugra; Ozbolat, Ibrahim T

    2017-03-15

    Bioprinting is a promising technology to fabricate design-specific tissue constructs due to its ability to create complex, heterocellular structures with anatomical precision. Bioprinting enables the deposition of various biologics including growth factors, cells, genes, neo-tissues and extra-cellular matrix-like hydrogels. Benefits of bioprinting have started to make a mark in the fields of tissue engineering, regenerative medicine and pharmaceutics. Specifically, in the field of tissue engineering, the creation of vascularized tissue constructs has remained a principal challenge till date. However, given the myriad advantages over other biofabrication methods, it becomes organic to expect that bioprinting can provide a viable solution for the vascularization problem, and facilitate the clinical translation of tissue engineered constructs. This article provides a comprehensive account of bioprinting of vascular and vascularized tissue constructs. The review is structured as introducing the scope of bioprinting in tissue engineering applications, key vascular anatomical features and then a thorough coverage of 3D bioprinting using extrusion-, droplet- and laser-based bioprinting for fabrication of vascular tissue constructs. The review then provides the reader with the use of bioprinting for obtaining thick vascularized tissues using sacrificial bioink materials. Current challenges are discussed, a comparative evaluation of different bioprinting modalities is presented and future prospects are provided to the reader. Biofabrication of living tissues and organs at the clinically-relevant volumes vitally depends on the integration of vascular network. Despite the great progress in traditional biofabrication approaches, building perfusable hierarchical vascular network is a major challenge. Bioprinting is an emerging technology to fabricate design-specific tissue constructs due to its ability to create complex, heterocellular structures with anatomical precision

  10. Transcranial Doppler for detection of cerebral ischaemia during carotid endarterectomy

    DEFF Research Database (Denmark)

    Jørgensen, L G; Schroeder, T V

    1992-01-01

    We evaluated transcranial Doppler sonography (TCD) for the detection of cerebral ischaemia during carotid endarterectomy in 30 male and 14 female patients with ipsilateral focal cerebro-vascular symptoms. Surgery was performed during halothane-nitrous oxide anaesthesia with moderate hypocapnia...

  11. Effects of forskolin on cerebral blood flow: implications for a role of adenylate cyclase

    International Nuclear Information System (INIS)

    Wysham, D.G.; Brotherton, A.F.; Heistad, D.D.

    1986-01-01

    We have studied cerebral vascular effects of forskolin, a drug which stimulates adenylate cyclase and potentiates dilator effects of adenosine in other vascular beds. Our goals were to determine whether forskolin is a cerebral vasodilator and whether it potentiates cerebral vasodilator responses to adenosine. We measured cerebral blood flow with microspheres in anesthetized rabbits. Forskolin (10 micrograms/kg per min) increased blood flow (ml/min per 100 gm) from 39 +/- 5 (mean +/- S.E.) to 56 +/- 9 (p less than 0.05) in cerebrum, and increased flow to myocardium and kidney despite a decrease in mean arterial pressure. Forskolin did not alter cerebral oxygen consumption, which indicates that the increase in cerebral blood flow is a direct vasodilator effect and is not secondary to increased metabolism. We also examined effects of forskolin on the response to infusion of adenosine. Cerebral blood flow was measured during infusion of 1-5 microM/min adenosine into one internal carotid artery, under control conditions and during infusion of forskolin at 3 micrograms/kg per min i.v. Adenosine alone increased ipsilateral cerebral blood flow from 32 +/- 3 to 45 +/- 5 (p less than 0.05). Responses to adenosine were not augmented during infusion of forskolin. We conclude that forskolin is a direct cerebral vasodilator and forskolin does not potentiate cerebral vasodilator responses to adenosine

  12. Didactopatogenia (Enfermedades generadas por la mala enseñanza

    Directory of Open Access Journals (Sweden)

    José Cukier

    1996-12-01

    Full Text Available Se plantea el desarrollo de enfermedades generadas por la mala enseñanza. Se cuestiona el papel que cumplen las instituciones educativas al avalar a educadores con personalidad narcisista que inducen a estas enfermedades. Se describen las características de estos educadores, sus principales defensas y las interacciones didactopatogénicas que se establecen entre el educador y el educando, generando transformación pasivo/activo, tabú del pensamiento, saber enciclopédico, recuerdos póstumos, trastornos de conducta, distracción, y agresividad marcada. Se discute, también, el concepto del educador y sus dobles.

  13. La enfermedad de Graves, signos y síntomas

    OpenAIRE

    Young, P.; Finn, B. C.; Bruetman, J. E.

    2007-01-01

    La enfermedad de Graves es la causa más común de hipertiroidismo, es de patogenia autoinmune. Se distingue clínicamente de otras formas de hipertiroidismo por la presencia de bocio difuso, oftalmopatía y ocasionalmente mixedema pretibial. En este artículo describimos la vida y obra de Robert Graves, realizando posteriormente una revisión de los signos y síntomas de la enfermedad. En el mundo de la medicina actual, en donde la tecnología juega un rol preponderante, queremos recordar la importa...

  14. Terapia génica de la enfermedad de Stargardt

    OpenAIRE

    Martín Nieto, José

    2015-01-01

    El gen humano ABCA4 (=ABCR) se caracterizó en 1997 como el principal causante de la enfermedad de Stargardt, una distrofia macular hereditaria generalmente autosómica recesiva. Poco tiempo después se encontraron otras enfermedades asociadas a mutaciones en este gen, como son distrofia de conos y bastones, determinados casos de retinosis pigmentaria y un aumento de la susceptibilidad a la degeneración macular asociada a la edad. No existen tratamientos curativos para ninguna de estas distrofia...

  15. Diabetes mellitus en el paciente con enfermedad renal avanzada

    OpenAIRE

    R. Verner Codoceo, Dr.

    2010-01-01

    La diabetes mellitus 2 (DM 2) y la enfermedad renal crónica (ERC) son considerados problemas de salud pública a nivel mundial. Los pronósticos de ambas enfermedades están estrechamente relacionados, por lo que las acciones terapéuticas son complementarias. Un buen control glicémico revierte las alteraciones renales en sus etapas iniciales disminuyendo el deterioro microangiopático ya su vez el intento de obtener un control óptimo de glicemias requiere conocer y tratar las alteraciones provoca...

  16. Enfermedades y Geopolítica en Colombia

    OpenAIRE

    Hugo Armando Sotomayor Tribin

    1997-01-01

    El presente artículo “Enfermedades y geopolítica en Colombia” relacionará las enfermedades con dos fenómenos sociales y políticos que han pesado grandemente en la conformación histórica de nuestro país: el acento político y el progreso económico para algunas regiones, al tiempo que el descuido y abandono para otra, y el racismo.

    El primero, el relacionado con la asignación de una mayor importancia en un momento dado a algunas regiones y su contrapartida, el descuido...

  17. Conceptos actuales sobre el envejecimiento y la enfermedad cardiovascular

    OpenAIRE

    Carolina Pemberthy López; Nicolás Jaramillo-Gómez; Camilo Andrés Velásquez Mejía; Jonathan Cardona-Vélez; Heidy Contreras-Martínez; Valentina Jaramillo-Restrepo

    2016-01-01

    En los últimos años se ha presentado un notable incremento en la proporción de población mayor de 65 años de edad, de la mano con el incremento de las enfermedades cardiovasculares, específicamente la enfermedad coronaria. No obstante, los mecanismos fisiopatológicos del envejecimiento y su relación con la salud cardiovascular son un campo de reciente investigación. Resulta fundamental conocer aspectos como: la teoría del acortamiento de telómeros, el papel de la actividad física, el endoteli...

  18. Atrofia muscular espinal tipo 1: enfermedad de Werdnig-Hoffmann

    OpenAIRE

    Zárate-Aspiros, Romeo; Rosas-Sumano, Ana Beatriz; Paz-Pacheco, Alberto; Fenton-Navarro, Patricia; Chinas-López, Silvet; López-Ríos, José Antonio

    2013-01-01

    Introducción. Las atrofias musculares espinales de la infancia son enfermedades neuromusculares hereditarias, autosómicas, recesivas, caracterizadas por la degeneración de las neuronas motoras del asta anterior de la médula espinal. La atrofia muscular espinal tipo I (enfermedad de Werdnig-Hoffmann) es la forma más severa. Se inicia in útero o durante los primeros meses de vida. La muerte suele ocurrir antes de los dos años de edad. Caso clínico. Lactante de 6 meses de edad que ingresa al Ser...

  19. Enfermedad de pompe: presentación de un caso

    OpenAIRE

    Azrak, M. Angeles; Fernández, Zulma; Peruffo, M.Virginia; Specola, Norma; Nuñez, M.; Pardo, A.

    2009-01-01

    Presentamos el caso de una niña de 6 meses de ascendencia china con enfermedad de Pompe diagnosticada a partir de una miocardiopatía hipertrófica biventricular e hipotonía global. En esta enfermedad el acúmulo de glucógeno lisosomal principalmente en el corazón y músculo esquelético ocasiona la mayoría de la sintomatología clínica. En esta paciente la hipotonía generalizada, macroglosia, debil...

  20. Leopoldo María Panero: enfermedad mental y literatura

    OpenAIRE

    Sánchez Bustos, Sergio Augusto

    2012-01-01

    Un estudio de la vida y obra del poeta Leopoldo María Panero, ha sido realizado, acentuando la búsqueda de caracterizaciones, textos, representaciones y su devenir biográfico de manera de configurar un discurso y una biografía de Leopoldo María Panero, enfatizando en sus textos la búsqueda de relaciones con la enfermedad mental. Mediante el estudio de la vida y obra del poeta se pretende contribuir a comprender sin prejuicios y críticamente los usos sociales del concepto de enfermedad mental ...

  1. Palabras impertinentes. Contra el concepto de enfermedad mental.

    OpenAIRE

    Yolanda Gómez Fontanil; Esteban Coto Ezama

    1986-01-01

    Señalamos la existencia ineludible de un aspecto organizacional en toda situación, persistente e indeseable, etiquetada como de «enfermedad mental». Ese aspecto es traducible en un hacer discursivo de un colectivo de personas. Denunciamos el carácter metafórico del término «enfermedad mental» que atenúa, pero también perpetúa, la convención social de la locura: una estrategia socialmente destructora para resolver y ganar conflictos sin reconocerlos. Encontramos un campo no metafórico para la ...

  2. El Control de las Enfermedades Transmisibles

    Directory of Open Access Journals (Sweden)

    Efraim Otero Ruiz

    2001-12-01

    Full Text Available

    En medio de la histeria mundial sobre la guerra biológica, promovida por intereses bélicos, políticos y económicos, llega como anillo al dedo esta décimoséptima edición de un manual de interés especial para los médicos, publicado por primera vez en inglés hace 83 años, revisado y publicado cada cinco
    por la Asociación Estadounidense de Salud Pública (AESP y que en el curso de su ya venerable existencia ha tenido sólo cuatro editores, los profesores Haven Emerson (de la 1a. a la 7a., John Gordon (de la 8a. a la 10a., Abram S. ("Bud" Berenson (de la 11a. a la 16a. y James Chin, Profesor Clínico de Epidemiología de la Escuela de Salud Pública de la Universidad de California en Berkeley, en los últimos dos años. Es un conciso libro de pasta blanda de 748 páginas, obtenible en las oficinas locales de la OPS o en la Editorial Médica Panamericana. Como dice su autor, la obra cumple una función normativa en salud pública y ha sido vertida en 6 idiomas además del español, incluyendo el turco y el farsi. Cuenta además con una página web (www.ccdm.org para difundir datos actualizados sobre prevención y control de enfermedades transmisibles.

    Otras publicaciones se pueden obtener de la librería en línea publications.paho.org.
    Tuve la oportunidad de conocer al Dr. Chin cuando ambos asistíamos, en Berkeley en 1959-60, él a la Escuela de Salud Pública y yo al Laboratorio Donner (hoy Lawrence-Livermore de Radiación. Nos veíamos ocasionalmente en la cafetería de la bella Universidad o asistíamos a las conferencias de otro científico natural de la China como él, el Dr. Cho Hao Li, ganador del Premio Nobel por su descubrimiento de la hormona de crecimiento. Mucho después, siendo los dos ya profesionales
    de larga experiencia, tuve el placer de oírlo nuevamente cuando ambos asistíamos al Consejo Nacional de Investigaciones de la Academia Nacional de Ciencias de los Estados Unidos, en 1987

  3. Comparison between digital subtraction angiography and magnetic resonance angiography in investigation of nonlacunar ischemic stroke in young patients: preliminary results Comparação entre arteriografia digital e angioressonância na investigação de acidente vascular cerebral isquêmico não-lacunar em pacientes jovens: resultados preliminares

    Directory of Open Access Journals (Sweden)

    Adriana Bastos Conforto

    2006-06-01

    Full Text Available PURPOSE: We preliminarily investigated the relevance of performing digital subtraction angiography (DSA in addition to magnetic resonance angiography (MRA in definition of ischemic stroke etiology in young patients. METHOD: DSAs and MRAs from 17 young patients with nonlacunar ischemic stroke were blindly analyzed and their impact on stroke management was evaluated. RESULTS: Etiologies were the same considering results of either DSA or MRA in 12/17 cases. In 15/17 patients no changes would have been made in treatment, regardless of the modality of angiography considered. CONCLUSION: These preliminary results suggest that DSA may be redundant in two thirds of ischemic strokes in young patients. Further larger prospective studies are necessary to determine indications of DSA in this age group.PROPÓSITO DO ESTUDO: Investigar de forma preliminar a relevância da realização de angiografia digital (AD adicionalmente a angioressonância (AR na definição de etiologias de acidente vascular cerebral isquêmico (AVCI em pacientes jovens. MÉTODO: ADs e ARs de 17 pacientes jovens com AVCIs não-lacunares foram analisadas. Avaliamos o impacto destes exames no manejo clínico dos casos. RESULTADOS: Em 12/17 casos, as etiologias dos AVCIs de acordo com os resultados de AD ou de AR foram idênticas. Em 15/17 pacientes, nenhuma mudança de conduta terapêutica seria realizada, independentemente da modalidade de exame considerada. CONCLUSÃO: Estes resultados preliminares sugerem que os resultados da AD podem ser redundantes em relação à AR em até dois terços dos pacientes jovens com AVCI. Estudos prospectivos maiores são necessários para otimizar o estabelecimento de indicações de AD nesta faixa etária.

  4. Morning Glory Syndrome with Carotid and Middle Cerebral Artery Vasculopathy.

    Science.gov (United States)

    Nezzar, Hachemi; Mbekeani, Joyce N; Dalens, Helen

    2015-12-01

    To report a case of incidental asymptomatic atypical morning glory syndrome (MGS) with concomitant ipsilateral carotid and middle cerebral dysgenesis. A 6-year-old child was discovered to have incidental findings of MGS, with atypia. All visual functions were normal including vision and stereopsis. Neuroimaging revealed ipsilateral carotid and middle cerebral vascular narrowing without associated collateral vessels or cerebral ischemia commonly seen in Moyamoya disease. Subsequent annual examinations have been stable, without signs of progression. This case demonstrates disparity between structural aberrations and final visual and neurological function and reinforces the association between MGS and intracranial vascular disruption. Full ancillary ophthalmic and neuroimaging studies should be performed in all patients with MGS with interval reassessments, even when the patient is asymptomatic and functionally intact.

  5. Enfermedad óseo mineral relacionada con la enfermedad renal crónica: Klotho y FGF23; implicaciones cardiovasculares

    Directory of Open Access Journals (Sweden)

    Laura Salanova Villanueva

    2016-07-01

    Full Text Available Una de las principales causas de morbimortalidad en el paciente con enfermedad renal crónica es la cardiovascular. La inflamación y las alteraciones en el metabolismo óseo mineral son una condición patológica que conlleva aumento del riesgo cardiovascular en la enfermedad renal crónica. Los parámetros bioquímicos clásicos del metabolismo óseo mineral como fósforo, calcio, vitamina D y PTH tienen una implicación muy conocida en el riesgo cardiovascular. Los nuevos marcadores, FGF23 y klotho, también podrían estar implicados en la enfermedad cardiovascular.

  6. Non-invasive methods for measuring vascular changes in neurovascular headaches

    DEFF Research Database (Denmark)

    Schytz, Henrik W; Amin, Faisal M; Selb, Juliette

    2018-01-01

    Vascular changes during spontaneous headache attacks have been studied over the last 30 years. The interest in cerebral vessels in headache research was initially due to the hypothesis of cerebral vessels as the pain source. Here, we review the knowledge gained by measuring the cerebral vasculature...... studies of migraine and other headache disorders do not provide solid evidence for cerebral blood flow velocity changes during spontaneous attacks of migraine headache. SPECT studies have clearly shown cortical vascular changes following migraine aura and the differences between migraine with aura...... compared to migraine without aura. PET studies have shown focal activation in brain structures related to headache, but whether the changes are specific to different primary headaches have yet to be demonstrated. MR angiography has shown precise changes in large cerebral vessels during spontaneous migraine...

  7. Comportamiento de la cognición y comorbilidad en pacientes con infarto cerebral hospitalizados. Seychelles 2010-2011

    Directory of Open Access Journals (Sweden)

    Armando Carlos Roca Socarras

    2012-10-01

    Full Text Available Fundamento: el deterioro cognitivo y la alta comorbilidad son problemas de salud frecuentes en pacientes con enfermedad cerebrovascular. Objetivo: describir el comportamiento del deterioro cognitivo y de la comorbilidad en pacientes con infarto cerebral hospitalizados. Método: estudio descriptivo de 77 pacientes con diagnóstico de enfermedad cerebrovascular isquémica, ingresados entre abril del 2010 y diciembre del 2011, en el hospital general de Seychelles. Se analizó el comportamiento de esta enfermedad en relación con variables como: edad, presencia de enfermedades crónicas no transmisibles, deterioro cognitivo, años de estudios terminados, hemisferio cerebral afectado y tiempo de evolución. Resultados: el 68,9 % de los pacientes presentó deterior cognitivo; la edad media de estos fue de 74,2(±9,19 años frente a un 62,4(±14,2 para los que no tuvieron deterioro cognitivo. Se encontró una mayor frecuencia de enfermedades crónicas no transmisibles en los pacientes con deterioro cognitivo, con un índice de comorbilidad de Charlson en 2,11(±0,97. Se diagnosticaron con depresión 18 pacientes con deterioro cognitivo y 23 pacientes sin deterioro cognitivo. Conclusiones: más de la mitad de los pacientes hospitalizados presentó deterioro cognitivo, la mayor parte previo a la enfermedad cerebrovascular. En este grupo de pacientes predominó el sexo masculino, se observó un incremento de la edad, de la severidad de la depresión, así como de la frecuencia de enfermedades crónicas no transmisibles, e infarto de tamaño considerable, con respecto a los pacientes sin deterioro cognitivo.

  8. Daño nuclear en neuronas de cerebros de pacientes con enfermedad de Alzheimer y otras demencias

    Directory of Open Access Journals (Sweden)

    Francisco Lopera

    2000-02-01

    Full Text Available

    Introducción: La enfermedad de Alzheimer (EA es una entidad neurodegenerativa y es la causa más común de demencia. Recientemente se reportó en Antioquia (Colombia un grupo familiar con una mutación puntual en el codon 280 de la Presenilina 1 denominada E280A (sustitución de un ácido glutámico por una alanina, la cual produce un incremento en el acúmulo de b-Amiloide (bA de 42-43 aminoácidos y una patología cerebral severa. Durante los últimos años se ha propuesto que la muerte celular es uno de los factores principales de pérdida neuronal en la EA. Hasta el presente no se ha establecido el tipo de muerte celular implicadas en la pérdida neuronal. Por lo tanto el objetivo de esta investigación es establecer el tipo de muerte celular que ocurre en la EA y otras demencias tales como la Demencia Fronto Temporal (DFT, Huntington y Demencia Cerebro Vascular, con base en los siguientes criterios: 1. Fragmentación del ADN. 2. Cambios morfológicos nucleares. 3. Cambios citoplasmáticos y 4. Expresión de ciertas proteínas asociadas a muerte celular. Los resultados de esta investigación permitirán establecer una correlación entre los parámetros morfológicos e histoquímicos antes mencionados, entre placas de bA y ovillos neurofibrilares en la EA y con ovillos neurofibrilares en la DFT adicionalmente. Este trabajo nos permitirá determinar si existe un mecanismo común de muerte celular en las enfermedades neurodegenerativas con demencia.

    Surgical prophylaxis secundary to cryptogenic stroke or transient ischemic attack in patients with patent foramen ovale Profilaxia cirúrgica secundária do acidente vascular cerebral ou ataque isquêmico transitório de origem indeterminada em pacientes com forame oval persistente

    Directory of Open Access Journals (Sweden)

    Michele E.A. Guffi

    2003-09-01

    avoids recurrent stroke.INTRODUÇÃO: A prevenção do acidente vascular cerebral (AVC ou ataque isquêmico transitório (AIT de origem indeterminada recorrente em adultos com forame oval persistente (FOP representa um desafio terapêutico. O tratamento farmacológico antitrombótico é amplamente usado, mas a sua indicação é limitada, devido principalmente às suas importantes complicações. OBJETIVO: Demonstrar a eficácia da atriosseptorrafia como profilaxia secundária do AVC ou AIT de origem indeterminada em pacientes com FOP. MÉTODO: Foram estudados 47 pacientes, sendo 31 homens e 16 mulheres com eventos isquêmicos cerebrais. Todos foram submetidos a fechamento cirúrgico direto do FOP. A idade media foi de 40 anos. Não foi achada causa concomitante do AVC ou AIT após investigações, as quais incluíram testes de coagulação sanguínea, ecocardiografia transesofágica de contraste (ETE, ultra-sonografia doppler transcraniana e extracraniana (UDT, monitorização eletrocardiográfica de 24 horas, ressonância magnética cerebral (RMC e tomografia axial computadorizada (TAC. Os critérios para indicação cirúrgica foram pelo menos dois dos seguintes eventos: aneurisma do septo interatrial, infartos cerebrais múltiplos, eventos cerebrais múltiplos e história de manobra de Valsalva antes do AVC ou AIT. RESULTADOS: Não ocorreram complicações durante ou após as operações. Quatro pacientes apresentaram arritmia transitória algumas horas após a operação, sem fibrilação atrial, nem instabilidade hemodinâmica ou embolismo. Todos os pacientes sobreviveram em classe I (NYHA e durante seguimento médio de 36 meses nenhum paciente apresentou recorrência do AVC ou AIT. Todos os pacientes foram submetidos prospectivamente a RMC e ETE de contraste com simultânea UDT. Apenas um paciente apresentou desvio residual direita-esquerda, menor do que o desvio pré-operatório, porém sem lesões na RMC. CONCLUSÃO: A atriosseptorrafia em pacientes com suspeita

  9. Modeling cerebral blood flow during posture change from sitting to standing

    DEFF Research Database (Denmark)

    Ottesen, Johnny T.; Olufsen, M.; Tran, H.T.

    2004-01-01

    extremities, the brain, and the heart. We use physiologically based control mechanisms to describe the regulation of cerebral blood flow velocity and arterial pressure in response to orthostatic hypotension resulting from postural change. To justify the fidelity of our mathematical model and control......Abstract Hypertension, decreased cerebral blood flow, and diminished cerebral blood flow velocity regulation, are among the first signs indicating the presence of cerebral vascular disease. In this paper, we will present a mathematical model that can predict blood flow and pressure during posture...

  10. Uso de derivados de quinazollnas y sus composiciones farmacéuticas en enfermedades neurodegenerativas

    OpenAIRE

    Martínez, Ana; Redondo, Miriam; Sanz-SanCristóbal, Marina; Gil, Carmen; Morales-García, José A.; Pérez Castillo, Ana; Pérez Martín, María Concepción

    2009-01-01

    Uso de derivados de quinazolinas y sus composiciones farmacéuticas en enfermedades neurodegenerativas. La invención se refiere a derivados heterocíclicos de quinazolinas y a su potencial para el tratamiento de enfermedades neurodegenerativas y/o neurológicas, entre otras la enfermedad de Parkinson, enfermedad de Alzheimer o esclerosis. Además, la invención se refiere a composiciones farmacéuticas que comprenden dichos compuestos derivados de quinazolinas.

  11. Enfermedades hereditarias monogénicas y multifactoriales

    OpenAIRE

    Cruz Cubas, Antonio

    2007-01-01

    En el lenguaje de la genética, es corriente distinguir según sus causas- dos grandes grupos de patologías hereditarias: las “monogénicas” y las “multifactoriales Las enfermedades monogénicas son provocadas por mutacion(es) génica(s) necesaria(s) y suficiente(s)

  12. Uso de glucocorticoides en enfermedades alérgicas

    Directory of Open Access Journals (Sweden)

    M Rodríguez-González

    2017-01-01

    Full Text Available Los glucocorticoides son análogos sintéticos de las hormonas adrenocorticales, de uso común, de gran utilidad en la práctica clínica del pediatra y se consideran la piedra angular del tratamiento farmacológico de enfermedades alérgicas.

  13. Enfermedad de Von Gierke: Reporte de tres casos

    Directory of Open Access Journals (Sweden)

    E. Espinosa

    2001-07-01

    Full Text Available La enfermedad de Von Gierke es un defecto en la glucosa 6 fosfatasa, degrada el glucógeno en el hígado, riñón e intestino. Asociada con hipoglicemia, acidosis láctica e hiperuricemia.

  14. Tres casos de hepatomegalia policorica o enfermedad de von Gierke

    Directory of Open Access Journals (Sweden)

    Pedro J. Sarmiento

    1947-03-01

    Full Text Available Presentamos este trabajo por lo poco frecuente de esta enfermedad y por no haber encontrado en la literatura médica nacional mención ninguna sobre su existencia y por parecernos de gran importancia darla a conocer entre nosotros.

  15. El timerosal y las enfermedades del neurodesarrollo infantil

    Directory of Open Access Journals (Sweden)

    Luis Maya

    2006-09-01

    Full Text Available Se evalúa la relación causal entre el timerosal (etilmercurio, como preservante en las vacunas pediátricas, y el incremento de casos de enfermedades del neurodesarrollo infantil, como consecuencia de la ampliación de los esquemas de inmunización. Se revisó la información científica, relacionando el timerosal y las evidencias que permitan evaluar una posible asociación causal, con estudios epidemiológicos, ecológicos, biomoleculares y toxicológicos, de bioseguridad, toxicológicos fetales y sobre salud reproductiva. Se encontró múltiples asociaciones entre la exposición a timerosal y las enfermedades del neurodesarrollo infantil. Tal neurotoxicidad ocurre en los infantes y fetos de gestantes vacunadas por dosis acumulativa de mercurio. Las diversas evidencias implican al timerosal como el agente causante, agravante o disparador de las enfermedades del neurodesarrollo infantil. La toxicidad del mercurio obligó al retiro progresivo del timerosal de los medicamentos. Lamentablemente, en las vacunas, ha habido una sustancial demora en la demostración de su impacto negativo. Actualmente, existen vacunas sin timerosal, cuyo uso está ocasionando la disminución de la incidencia de las enfermedades del neurodesarrollo infantil.

  16. Cerebral microbleeds in a neonatal rat model.

    Directory of Open Access Journals (Sweden)

    Brianna Carusillo Theriault

    Full Text Available In adult humans, cerebral microbleeds play important roles in neurodegenerative diseases but in neonates, the consequences of cerebral microbleeds are unknown. In rats, a single pro-angiogenic stimulus in utero predisposes to cerebral microbleeds after birth at term, a time when late oligodendrocyte progenitors (pre-oligodendrocytes dominate in the rat brain. We hypothesized that two independent pro-angiogenic stimuli in utero would be associated with a high likelihood of perinatal microbleeds that would be severely damaging to white matter.Pregnant Wistar rats were subjected to intrauterine ischemia (IUI and low-dose maternal lipopolysaccharide (mLPS at embryonic day (E 19. Pups were born vaginally or abdominally at E21-22. Brains were evaluated for angiogenic markers, microhemorrhages, myelination and axonal development. Neurological function was assessed out to 6 weeks.mRNA (Vegf, Cd31, Mmp2, Mmp9, Timp1, Timp2 and protein (CD31, MMP2, MMP9 for angiogenic markers, in situ proteolytic activity, and collagen IV immunoreactivity were altered, consistent with an angiogenic response. Vaginally delivered pups exposed to prenatal IUI+mLPS had spontaneous cerebral microbleeds, abnormal neurological function, and dysmorphic, hypomyelinated white matter and axonopathy. Pups exposed to the same pro-angiogenic stimuli in utero but delivered abdominally had minimal cerebral microbleeds, preserved myelination and axonal development, and neurological function similar to naïve controls.In rats, pro-angiogenic stimuli in utero can predispose to vascular fragility and lead to cerebral microbleeds. The study of microbleeds in the neonatal rat brain at full gestation may give insights into the consequences of microbleeds in human preterm infants during critical periods of white matter development.

  17. Evaluation of cerebral blood flow, cerebral metabolism and cerebral function by magnetic resonance imaging

    International Nuclear Information System (INIS)

    Tanaka, Chuzo; Higuchi, Toshihiro; Umeda, Masahiro; Naruse, Shoji; Horikawa, Yoshiharu; Ueda, Satoshi; Furuya, Seiichi.

    1995-01-01

    The magnetic resonance (MR) method has the unique potentiality of detecting cerebral metabolites, cerebral blood flow and brain functions in a noninvasive fashion. We have developed several MR techniques to detect these cerebral parameters with the use of clinical MRI scanners. By modifying the MR spectroscopy (MRS) technique, both 31 P- and 1 H-MRS data can be obtained from multiple, localized regions (multi-voxel method) of the brain, and the distribution of each metabolite in the brain can be readily visualized by metabolite mapping. The use of diffusion weighted images (DWI) permits visualization of the anisotropy of water diffusion in white matter, and based on the difference of diffusion coefficiency, the differential diagnosis between epidermoid tumor and arachnoid cyst can be made. By employing dynamic-MRI (Dyn-MRI) with Gd-DTPA administration, it is possible to examine the difference in blood circulation between brain tumor tissue and normal tissue, as well as among different types of brain tumors. By using magnetization transfer contrast (MTC) imaging, it has become possible to detect brain tumors, and with a small dose of Gd-DTPA, to visualize the vascular system. Functional MRI (fMRI) visualizes the activated brain by using conventional gradient echo technique on conventional MRI scanners. This method has the unique characteristic of detecting a brain function with high spatial and temporal resolution by using the intrinsic substance. Moreover, the localization of motor and sensory areas was detected by noninvasive means within few minutes. The fMRI procedure will be used in the future to analyze the higher and complex brain functions. In conclusion, multi-modality MR is a powerful technique that is useful for investigating the pathogenesis of many diseases, and provides a noninvasive analytic modality for studying brain function. (author)

  18. Obesidad y enfermedad renal: consecuencias ocultas de la epidemia

    Directory of Open Access Journals (Sweden)

    Csaba P. Kovesdy

    2017-07-01

    Full Text Available La obesidad se ha convertido en una epidemia mundial, y se ha proyectado que su prevalencia se incrementrá en un 40% en la próxima década. Esta creciente prevalencia supone implicaciones tanto para el riesgo de desarrollo de diabetes y enfermedades cardiovasculares como para el desarrollo de enfermedad renal crónica. Un elevado índice de masa corporal es uno de los factores de riesgo más importantes para el desarrollo de enfermedad renal crónica. En individuos afectados por la obesidad, tiene lugar una hiperfiltración compensatoria necesaria para alcanzar la alta demanda metabólica secundaria al aumento del peso corporal. El incremeno de la presión intraglomerular puede generar daño renal y elevar el riesgo de desarrollar enfermedad renal crónica a largo plazo. La incidencia de glomerulopatía asociada a obesidad se ha incrementado 10 veces en los últimos años. Así mismo se ha demostrado que la obesidad es un factor de riesgo para el desarrollo de nefrolitiasis y un número de neoplasias, incluyendo cáncer renal. Este año, el Día Mundial del Riñón promueve la educación acerca de las consecuencias nocivas de la obesidad y su asociación con la enfermedad renal, abogando por un estilo de vida saludable y la implementación de políticas publicas de salud que promuevan medidas preventivas alcanzables.

  19. Evaluation of computer tomography in cerebro-vascular disease (Strokes)

    International Nuclear Information System (INIS)

    Lee, Young Sik; Baek, Seung Yon; Rhee, Chung Sik; Kim, Hee Seup

    1984-01-01

    Most of cerebrovascular disease are composed of vascular occulusive changes and hemorrhage. Now a day, the computed tomography is the best way for evaluation of cerebrovascular disease including detection of nature, location, and associated changes. This study includes evaluation of computed tomography of 70 patients with cerebrovascular disease during the period of 10 months from April. 1983 to Feb. 1984 in Department of Radiology, Ewha Womans University Hospital. The results were as follows: 1. Age distribution of the total 70 patients was broad ranging from 25 years to 79 years. 78.6% of patients were over the age of 50. The male and female sex ratio was 1.4:1. 2. 4 out of 70 patients were normal and 66 patients revealed abnormal on C.T. findings; those were intracranial hemorrhage (28 patients), cerebral infarction (34 patients) and brain atrophy (4 patients). 3. In cases of cerebral infarction, the cerebral hemisphere was most common site of lesion (28 cases), and next was basal ganglia (2 cases). Most of the infarcts in cerebral hemisphere were located in the parietal and temporal lobes. 4. In cases of intracranial hemorrhage, the basal ganglia was most common site of lesion (15 cases). The next common site was cerebral hemisphere (9 cases). 6 patients of all intracranial hemorrhage were combined with intraventricular hemorrhage. Ratio of right and left was 2:3. 5. In patients with motor weakness or hemiparesis, more common findings on CT scan were cerebral infarction. In case with hemiplegia, more common CT findings were intracerebral hemorrhage. 6. Of the 40 cases thought to be cerebral infarction initially by clinical findings and spinal tap. 8 cases (20.0%) were proved to be cerebral hemorrhage by the CT scan. However, of the 22 cases thought to be cerebral hemorrhage, initially, only two cases (9.0%) were cerebral infarction

  1. Cerebral CT of ischaemic lesions

    Energy Technology Data Exchange (ETDEWEB)

    Aulich, A

    1981-11-25

    The diagnosis of stroke must first be established by clinical examination. CT has proved useful for confirmation of the diagnosis and provides a global intracranial picture of morphological changes in cerebral vascular diseases. A hemorrhage can be recognized with certainty at the first CT examination as the cause of the stroke, but in the detection of a lesion due to ischemia an important role is played by the correct choice of the time of examination, and in some cases also of the check-up with contrast medium. The differential diagnosis between infarct in the acute stage and encephalitis or gliomas of low-grade malignity can be difficult. A decision can often only be made after a series of examinations. Postmalacial conditions are often difficult to differentiate from defects due to other causes, such as hemorrhage, head injury, postoperative states and after encephalitis. A knowledge of the anamnesis and the clinical findings is indispensable for CT evaluation. In assessing the prognosis before vascular surgery on the extracranial brain-supplying vessels the performance of a CT examination should be advised. A warning is given against the use of CT as a screening method.

  2. ENFERMEDAD, MUERTE Y MEMORIA LA EXPERIENCIA FUNERARIA COMO INSTANCIA DEL RECUERDO (UNA LECTURA DE LA ENFERMEDAD, DE ALBERTO BARRERA TYSZKA

    Directory of Open Access Journals (Sweden)

    José Javier Franco

    2016-01-01

    Full Text Available Experiencia y memoria dicen de una vida en común; ambas son, esencialmente, colectivas. Vivir y recordar nos comprometen con el otro, porque incluso la experiencia más íntima está mediada por su presencia; o por su ausencia, que es otra forma de estar juntos. La muerte augura no sólo el fin de la experiencia, sino también su carácter irrecuperable, irreversible. La enfermedad es el aviso, la antesala de la muerte. Enfermedad y muerte convocan el pasado, lo instan a hacerse (en el presente, aunque toda restitución sea imposible. Pero la muerte, al menos la propia, es inenarrable. No hay un discurso pos mortem que no provenga del otro, de los otros. La enfermedad y la muerte del prójimo, del otro próximo, activan la memoria y el discurso funerarios. Los vivos recuerdan al muerto y hablan en su nombre. La enfermedad, de Alberto Barrera Tyszka, ficciona ese doble proceso de recordación y pérdida: la muerte del padre signa no sólo el pasado, sino el futuro del hijo, que ve en el presente tanto la repetición traumática del pasado, como el proceso de duelo que inaugura. Estas líneas proponen una lectura de esa puesta en escena.

  3. Computed tomographic findings of cerebral arterial ectasia

    International Nuclear Information System (INIS)

    Choi, Woo Suk; Ko, Young Ho; Lim, Jae Hoon

    1987-01-01

    The computed tomographic findings of cerebral arterial ectasia in 8 patients, of which 5 cases were angiographically documented, are reported. The ecstatic arteries, located predominantly in the suprasellar and interpeduncular cisterns, appeared as serpignous, tubular structures on the unenhanced scan. The enhanced CT scan demonstrated dense, sharply defined, homogeneous intraluminal enhancement. Until recently, the diagnosis of cerebral arterial ectasia was usually established by angiography. With introduction of CT it has become possible to noninvasively identify and characterize this vascular disorder and its associated intracranial complications. The vertebrobasilar dolichoectasia may be diagnosed by CT as an extra-axial lesion in the cerebellopontine angle. It enhances in a tubular fashion after intravenous injection of contrast.

  4. Vascular Contributions to Cognitive Impairment and Dementia

    Science.gov (United States)

    Gorelick, Philip B.; Scuteri, Angelo; Black, Sandra E.; DeCarli, Charles; Greenberg, Steven M.; Iadecola, Costantino; Launer, Lenore J.; Laurent, Stephane; Lopez, Oscar L.; Nyenhuis, David; Petersen, Ronald C.; Schneider, Julie A.; Tzourio, Christophe; Arnett, Donna K.; Bennett, David A.; Chui, Helena C.; Higashida, Randall T.; Lindquist, Ruth; Nilsson, Peter M.; Roman, Gustavo C.; Sellke, Frank W.; Seshadri, Sudha

    2013-01-01

    Background and Purpose This scientific statement provides an overview of the evidence on vascular contributions to cognitive impairment and dementia. Vascular contributions to cognitive impairment and dementia of later life are common. Definitions of vascular cognitive impairment (VCI), neuropathology, basic science and pathophysiological aspects, role of neuroimaging and vascular and other associated risk factors, and potential opportunities for prevention and treatment are reviewed. This statement serves as an overall guide for practitioners to gain a better understanding of VCI and dementia, prevention, and treatment. Methods Writing group members were nominated by the writing group co-chairs on the basis of their previous work in relevant topic areas and were approved by the American Heart Association Stroke Council Scientific Statement Oversight Committee, the Council on Epidemiology and Prevention, and the Manuscript Oversight Committee. The writing group used systematic literature reviews (primarily covering publications from 1990 to May 1, 2010), previously published guidelines, personal files, and expert opinion to summarize existing evidence, indicate gaps in current knowledge, and, when appropriate, formulate recommendations using standard American Heart Association criteria. All members of the writing group had the opportunity to comment on the recommendations and approved the final version of this document. After peer review by the American Heart Association, as well as review by the Stroke Council leadership, Council on Epidemiology and Prevention Council, and Scientific Statements Oversight Committee, the statement was approved by the American Heart Association Science Advisory and Coordinating Committee. Results The construct of VCI has been introduced to capture the entire spectrum of cognitive disorders associated with all forms of cerebral vascular brain injury—not solely stroke—ranging from mild cognitive impairment through fully developed

  5. Caries temprana de infancia: ¿enfermedad infecciosa?

    Directory of Open Access Journals (Sweden)

    F. Sandra Rojas, Dra.

    2014-05-01

    Full Text Available La caries dental es una de las enfermedades más comunes en la infancia y las personas continúan siendo susceptible a través de la vida. Aunque actualmente puede ser detenida y potencialmente revertida en etapas tempranas, no es autolimitada, progresa en forma crónica si no existe un cuidado y control de los factores que la producen, llegando a la destrucción de dientes, dolor, alteraciones funcionales, sistémicas y consecuencias en la calidad de vida de las personas. La caries temprana de infancia, de inicio precoz en niños, es causada en forma frecuente por hábitos alimenticios inapropiados y la adquisición temprana de microorganismos como Streptococcus mutans. Se ha sugerido una transmisión vertical de madre a hijo como la vía principal de adquisición de Streptococcus mutans, y también se ha demostrado en la literatura, que existiría una transmisión horizontal entre niños y sus cuidadores, compañeros de jardín infantil y colegios. Por esta razón durante muchos años se ha definido la enfermedad caries como infecciosa y transmisible. Nuevos avances en técnicas moleculares han dado evidencia acerca de la microflora autóctona y cómo la placa dental o biofilm funciona como un sistema ecológico dinámico y complejo. Existe evidencia que la caries dental no es una enfermedad infecciosa clásica, como se creía hace unos años, por el contrario, esta enfermedad es el resultado de un cambio ecológico en la biopelícula adquirida en la superficie dental. Además la transmisión de Streptococcus mutans de la madre hacia el hijo no implica que la enfermedad se desarrolle, por el contrario, la caries dental hoy se describe como una enfermedad común, compleja y multifactorial, donde interactúan varios factores de riesgo, entre los más destacados conductuales, ambientales y genéticos.

  6. A Means for the Scintigraphic Imaging of Regional Brain Dynamics. Regional Cerebral Blood Flow and Regional Cerebral Blood Volume

    Energy Technology Data Exchange (ETDEWEB)

    Potchen, E. J.; Bentley, R.; Gerth, W.; Hill, R. L.; Davis, D. O. [Washington University School Of Medicine, St. Louis, MO (United States)

    1969-05-15

    The use of freely diffusable inert radioactive gas as a washout indicator to measure regional cerebral blood flow has become a standardized kinetic procedure in many laboratories. Recent investigations with this technique have led us to conclude that we can reliably distinguish regional flow with perfusion against regional flow without perfusion from the early portion of the curve. Based on a detailed study of the early curve kinetics in patients with and without cerebral vascular disease we have defined the sampling duration necessary for application of the Anger gamma camera imaging process to regional changes in cerebral radioactivity. Using a standard camera and a small computer, a procedure has been developed and based upon entire field to determine the time of maximum height followed by analysis of the data in a matrix. This will permit a contour plot presentation of calculated regional cerebral blood flow in millilitres per 100 grams perfused brain per minute. In addition, we propose to augment this data by the display of regional non-perfusion blood flow versus regional cerebral flow with perfusion. Preliminary investigation on sampling duration, and Compton scattering were prerequisite to clinical scintigraphy of regional cerebral blood flow. In addition, the method of interface for the conventional Anger gamma camera to digital computers used in this procedure are discussed. Applications to further assess regional cerebral dynamics by scintigraphy are presented. (author)

  7. Value of three-dimensional computed tomography in screening cerebral aneurysms

    Energy Technology Data Exchange (ETDEWEB)

    Yamaguchi, Tamaki; Sugiura, Yusuke; Suzuki, Atsushi; Yamagata, Yoshitaka [Hyogo Medical Coll. (Japan)

    1997-10-01

    We performed three-dimensional computed tomography (3D-CT) in 6 patients of cerebral aneurysm. Prior cerebral angiography showed a total of 17 aneurysms. 3D-CT alone detected 10 cerebral aneurysm (59%). It was possible to identify aneurysms larger than 10 mm even when located near the circle of Willis. It was difficult to identify aneurysms when smaller than 7 mm regardless of their location. 3D-CT was of limited value in detecting cerebral aneurysms, particularly when located near the circle of Willis with complex vascular network. As cases of oculomotor palsy may be caused by lesions other than cerebral aneurysm, we advocate that 3D-CT be performed after magnetic resonance imaging (MRI) in screening cases of suspected cerebral aneurysm. (author)

  8. Dinamometria de preensão manual como parâmetro de avaliação funcional do membro superior de pacientes hemiparéticos por acidente vascular cerebral Handgrip dynamometry as a parameter of functional evaluation of the upper extremity hemiparetic after stroke

    Directory of Open Access Journals (Sweden)

    Antonio Vinicius Soares

    2011-12-01

    Full Text Available A força muscular é a valência física mais importante. É provável que exista correlação entre a força de preensão manual e outros testes para o membro superior afetado por um acidente vascular cerebral (AVC. O propósito deste estudo é analisar o valor preditivo da dinamometria de preensão manual (DPM para recuperação do membro superior parético por AVC. Foram avaliados 43 pacientes hemiparéticos pós-AVC (60,7 anos±12,1. Vários testes (Escala de movimento da mão (EMM, Estesiometria, Teste de caixa e blocos, 9 buracos e pinos, Escala de Ashworth modificada e Índice de Barthel foram relacionados com a DPM. Os resultados apontaram que a DPM apresenta boa correlação com EMM e, contrariamente, os testes de destreza manual, a sensibilidade e o índice de independência funcional não apresentaram valores significativos. A DPM é um teste rápido, fácil e acessível, e pode fazer parte dos protocolos de avaliação funcional do membro superior de pacientes hemiparéticos por AVC.Muscle strength is the most important physical valence. It is likely that there is a correlation between handgrip strength and other tests for the upper extremity affected by stroke. The purpose of this study is to analyze the predictive value of handgrip dynamometry (HD for upper limb recovery in stroke. Were studied 43 hemiparetic patients after stroke (60.7 years±12.1. Several tests (Hand moviment scale (HMS, Esthesiometry, Box and blocks test, 9 hole and peg test, Modified Ashworth scale and Barthel index were related to HD. The results showed that there is good correlation of the HD with HMS and, by contrast, the tests of manual dexterity, the sensitivity and index of functional independence showed no significant values. The HD is a quick, easy and affordable test, and can be part of protocols for functional evaluation of upper extremity of hemiparetic patients by stroke.

  9. Prevalência de acidente vascular cerebral em idosos no Município de Vassouras, Rio de Janeiro, Brasil, através do rastreamento de dados do Programa Saúde da Família Stroke prevalence among the elderly in Vassouras, Rio de Janeiro State, Brazil, according to data from the Family Health Program

    Directory of Open Access Journals (Sweden)

    Ana Beatriz Calmon Nogueira da Gama Pereira

    2009-09-01

    Full Text Available O estudo estimou a prevalência de acidente vascular cerebral (AVC em idosos em Vassouras, Rio de Janeiro, Brasil, pelo rastreamento de dados do Programa Saúde da Família (PSF. A população idosa foi escolhida por seu aumento no Brasil e pelo risco do AVC aumentar com a idade. Foram rastreados todos os idosos de Vassouras cadastrados no PSF, identificando os acometidos por AVC e analisando o seu perfil sócio-demográfico. Foram utilizados os dados do Sistema de Informação e Atenção Básica, do censo populacional do Instituto Brasileiro de Geografia e Estatística e a ficha de atendimento padronizada pelo PSF, do Ministério da Saúde. Avaliou-se a qualidade dos diagnósticos de AVC do PSF. No rastreamento, foram encontrados 122 idosos com diagnóstico de AVC, com prevalência de 2,9%, e aumento progressivo com o avançar da idade, sendo a prevalência nos homens (3,2% maior do que nas mulheres (2,7%. A taxa de prevalência foi igual tanto na zona rural quanto na zona urbana (2,9%. O conhecimento da magnitude da prevalência do AVC na população idosa é fundamental para melhor planejamento de saúde.This study estimated the prevalence of stroke among the elderly in Vassouras, Rio de Janeiro State, Brazil, based on data from the Family Health Program (FHP. The elderly population was chosen since it is growing as a proportion of the general population, and since stroke risk increases with age. Data were screened for all the elderly registered in the FHP in Vassouras, identifying those with a history of stroke and analyzing their socio-demographic profile. The study used data from the Information System on Primary Care, the population census conducted by the Brazilian Institute of Geography and Statistics (IBGE, and the Ministry of Health's standardized FHP patient form. Quality of stroke diagnoses in the FHP was analyzed. Data screening detected 122 elderly with a history of stroke diagnosis (prevalence = 2.9%; 3.2% in men, 2.7% in women

  10. Cerebral venous angioma

    International Nuclear Information System (INIS)

    Inagawa, Tetsuji; Taguchi, Haruyoshi; Kamiya, Kazuko; Yano, Takashi; Nakajima, Reiko

    1984-01-01

    This report presents a 27-year-old male patient who was diagnosed as having cerebral venous angioma in the postero-temporal area by CT scan and cerebral angiography. The patient improved by removing angioma with electrocoagulation of medullary veins. (Namekawa, K.)

  11. El papel del ejercicio físico en la inducción de BDNF y sus vías de señalización en el sistema nervioso central. Aplicación neurobiológica en modelos sanos y terapéutica en la enfermedad de Alzheimer

    OpenAIRE

    Pareja Galeano, Helios

    2014-01-01

    La actividad física previene numerosas patologías y mejora muchos rasgos fisiopatológicos en diferentes enfermedades. El ejercicio ha sido asociado clásicamente con beneficios en desórdenes musculares y metabólicos. Sin embargo, los efectos del ejercicio en la función cerebral, especialidad conocida como “Neurobiología del ejercicio”, han cobrado gran importancia en los últimos años. Los efectos beneficiosos del ejercicio físico han sido establecidos en muchas enfermedades tales como la en...

  12. EVALUACIÓN NEUROPSICOLÓGICA EN LA ENFERMEDAD DE ALZHEIMER: MEMORIA EPISÓDICA Y SEMÁNTICA.

    Directory of Open Access Journals (Sweden)

    Ana Comesaña

    2009-01-01

    Full Text Available Este trabajo tiene como objetivo realizar una revisión del proceso de evaluación neuropsicológica en pacientes con Alzheimer (EA, específicamente la referida a la memoria episódica y semántica. La enfermedad de Alzheimer es la principal forma de demencia. Es uno de los problemas sanitarios, sociales y culturales más importantes en actualidad. El diagnóstico y la diferenciación entre el envejecimiento normal y patológico son dificultosos en los primeros momentos, por lo tanto, la evaluación neuropsicológica cumple un papel fundamental. Los criterios utilizados actualmente son los del DSM IV (American Psychiatric Association, 1994 y los del NINCDS-ADRDA (Instituto Nacional para los Desórdenes Neurológicos, de la Comunicación y el Accidente Cerebro Vascular y la Asociación para la Enfermedad de Alzheimer y Desórdenes Relacionados (McKhann G, Drachman D, Folstein M, y col., 1984, y exigen que el diagnóstico de EA probable se corrobore por evaluación neuropsicológica, además de la evaluación clínica y otros estudios. A partir de la división de la memoria a largo plazo en semántica y episódica, se crearon pruebas específicas para su evaluación neuropsicológica en distintas patologías, incluyendo la EA. De esta manera, se realizó una importante contribución a la detección temprana del deterioro de la memoria que es característico de la enfermedad.

  13. Indian-ink perfusion based method for reconstructing continuous vascular networks in whole mouse brain.

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    Songchao Xue

    Full Text Available The topology of the cerebral vasculature, which is the energy transport corridor of the brain, can be used to study cerebral circulatory pathways. Limited by the restrictions of the vascular markers and imaging methods, studies on cerebral vascular structure now mainly focus on either observation of the macro vessels in a whole brain or imaging of the micro vessels in a small region. Simultaneous vascular studies of arteries, veins and capillaries have not been achieved in the whole brain of mammals. Here, we have combined the improved gelatin-Indian ink vessel perfusion process with Micro-Optical Sectioning Tomography for imaging the vessel network of an entire mouse brain. With 17 days of work, an integral dataset for the entire cerebral vessels was acquired. The voxel resolution is 0.35×0.4×2.0 µm(3 for the whole brain. Besides the observations of fine and complex vascular networks in the reconstructed slices and entire brain views, a representative continuous vascular tracking has been demonstrated in the deep thalamus. This study provided an effective method for studying the entire macro and micro vascular networks of mouse brain simultaneously.

  14. Cerebral vasculitis and its simulators. Diagnostic and interventional radiology

    International Nuclear Information System (INIS)

    Ishimaru, Hideki; Nakajima, Kazuaki; Matsuoka, Yohjiro; Sakamoto, Ayami; Sakugawa, Takayuki; Morikawa, Minoru; Inuzuka, Michiko; Kimura, Seigo

    2009-01-01

    Cerebral vasculitis, although rare in general, is an important cause of cerebral ischemia, because the treatment strategy is different from that of usual cerebral infarction. On the other hand, a variety of common and uncommon nonvasculitic disorders may mimic vasculitis angiographically or clinically. It is also important to distinguish these vasculitis simulators from true vasculitis in order to avoid the unnecessary and harmful side effects of corticosteroid and immunosuppressant, the mainstay of drug therapy for vasculitis. The diagnosis is often difficult. Angiography is expected to demonstrate the underlying vascular pathology; however, many vasculitides affect small arteries beyond the spatial resolution of conventional angiography. The most important role of the diagnostic imaging is the identification of brain lesions consistent with cerebral vasculitis. Multiple lesions in more than one vascular territory should raise this suspicion, although no specific pattern for this entity exists. In large and medium-sized vessel vasculitis, MRI can directly demonstrate mural thickening and enhancement, which is considered to specific for active inflammation. We propose here a classification for cerebral vasculitis and simulators according to the size of the affected brain vessels, which would help us to make a differential diagnosis. We also review the endovascular techniques for this entity, and its indications. (author)

  15. Cerebrovascular endothelin receptor upregulation in cerebral ischemia

    DEFF Research Database (Denmark)

    Edvinsson, Lars

    2009-01-01

    Stroke is a serious neurological disease and the third leading cause of death in the western world. In roughly 15 % of the cases, the cause is due to an intracranial haemorrhage, and the remaining 85 % represent ischemic strokes. Ischemic stroke is caused by the occlusion of a cerebral artery...... either by an embolus or by local thrombosis. Several studies have shown an involvement of the endothelin system in ischemic stroke. This review aims to examine the alterations of vascular endothelin receptor expression in ischemic stroke. Furthermore, studies of the intracellular signalling pathways...... leading to the enhanced expression of vascular endothelin receptors show that both protein kinase C (PKC) and mitogen activating protein kinase (MAPK) play important roles. The results from this work provide new perspectives on the pathophysiology of ischemic stroke, and give a possible explanation...

  16. Acute effects of tibolone on cerebral vascular reactivity in vitro

    DEFF Research Database (Denmark)

    Lund, C O; Nilas, Lisbeth; Dalsgaard, T

    2003-01-01

    alpha-OH-tibolone, 3beta-OH-tibolone, Delta(4) isomer and 17beta-estradiol were obtained before and after addition of the NO blocker N(omega)-nitro-L-arginine methyl ester (L-NAME, 10(-4) mol/l) or the potassium-channel blocker tetraethylammonium chloride (TEA, 10(-2) mol/l). Additionally, the effects...... of the hormones on the concentration-response curves with calcium were examined. RESULTS: Tibolone and its metabolites induced a concentration-dependent relaxation comparable to that of 17beta-estradiol (area under the curve (AUC); tibolone vs. 17beta-estradiol: 242 vs. 251; p ...-NAME increased the AUC for all substances compared with controls (p 17beta-estradiol. Preincubation with TEA induced no changes. The concentration-dependent contraction curves with calcium were shifted rightward by all hormones. CONCLUSIONS: The study demonstrates...

  17. Úvea y enfermedades sistémicas

    OpenAIRE

    Pablo Sabat, O.; Víctor Velásquez, R.

    2010-01-01

    El ojo, además de entregarnos el sentido de la visión, también nos permite conocer la salud general del organismo. Muchas enfermedades sistémicas se manifiestan en el órgano visual antes, durante o después del debut de ellas a nivel sistémico. Este compromiso visual es variado y depende de la enfermedad en cuestión, destacando la escleritis, uveítis y vasculitis retinales. Conocer el estado ocular permitirá al clínico realizar diagnósticos más asertivos y oportunos, realizar el tratamiento má...

  18. Enfermedades emergentes y reemergentes: factores causales y vigilancia

    Directory of Open Access Journals (Sweden)

    Carmen Luisa Suárez Larreinaga

    2000-12-01

    Full Text Available Este artículo tiene como objetivo exponer los conceptos y algunos de los factores causales más importantes en la aparición y diseminación de las enfermedades emergentes y reemergentes, así como presentar brevemente algunas de las actividades de vigilancia epidemiológica y su importancia en la detección y control de estas enfermedadesThe objective of this paper is to expound the concepts and some of the most important causal factors in the appearance and spreading of emergent and reemergent diseases, as well as to make a brief presentation of some of the epidemiological surveillance activities and their importance in the detection and control of these diseases

  19. Enfermedades Autoinmunes, tratamiento con Trichuris suis y otros helmintos

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    Iñigo Pallardo Fernández

    2015-01-01

    Full Text Available Objetivos: La "Hipótesis de la Higiene" postula sobre los efectos inmunomoduladores inducidos por agentes infecciosos en los seres humanos. El objetivo principal de este trabajo es indagar sobre las evidencias de esa hipótesis y sobre sus aplicaciones en el campo del tratamiento de las enfermedades autoinmunes, haciendo especial hincapié tanto en los mecanismos de acción en los que se basan estas aplicaciones como en los resultados reales obtenidos. Además analizará la posible evolución de estas terapias, especialmente a la sombra de las controversias éticas que surgen de la aplicación de estos tratamientos en relación a si es lícito causar una infección para curar otra patología, como es el caso que nos ocupa. Resultados: Actualmente existen resultados prometedores de ensayos clínicos sobre terapias helmínticas aplicadas al tratamiento de enfermedades autoinmunes como son la enfermedad de Crohn y la colitis ulcerosa, resumidos en el apartado de resultados de este artículo. Igualmente prometedora es la gran variedad de ensayos clínicos que actualmente están en curso sobre la aplicación de la terapia helmíntica al tratamiento de diversas patologías en las que está involucrado el sistema inmunológico, como son: asma, rinitis alérgica, artritis reumatoide, esclerosis múltiple, diabetes Mellitus tipo I, encefalomielitis autoinmune, obesidad, autismo, etc que han llevado a identificar cuáles son los parásitos indicados en el tratamiento de este amplio espectro de enfermedades. Sin embargo es necesario indicar que no todos los helmintos son inmunorreguladores y, por lo tanto útiles en el tratamiento de estas enfermedades y que, los que lo son, no son útiles en el tratamiento de todas las enfermedades de origen inmunológico sino que presentan una marcada especificidad. Es más, la utilidad de éstos presenta una variabilidad importante, no sólo dependiente de la enfermedad de origen inmunológico a tratar, sino tambi

  20. Patogenia y tratamientos actuales de la enfermedad de Alzheimer

    Directory of Open Access Journals (Sweden)

    Marco J Albert Cabrera

    Full Text Available El Alzheimer es una enfermedad neurodegenerativa que se manifiesta como deterioro cognitivo y trastornos conductuales. En Cuba, junto a la demencia, ocupa el lugar número 6 en el cuadro de principales causas de muerte. No hay tratamiento eficaz para detener la progresión del Alzheimer. Sin embargo, algunas terapias detienen o ralentizan temporalmente el deterioro cognitivo, funcional y conductual de la enfermedad. En el trabajo se presenta una revisión actualizada a partir de la base de datos MEDLINE (2008-2013 sobre los mecanismos patológicos y los medicamentos usados en el tratamiento de los pacientes con la referida afección.

  1. Conceptos actuales sobre el envejecimiento y la enfermedad cardiovascular

    Directory of Open Access Journals (Sweden)

    Carolina Pemberthy López

    2016-05-01

    Full Text Available En los últimos años se ha presentado un notable incremento en la proporción de población mayor de 65 años de edad, de la mano con el incremento de las enfermedades cardiovasculares, específicamente la enfermedad coronaria. No obstante, los mecanismos fisiopatológicos del envejecimiento y su relación con la salud cardiovascular son un campo de reciente investigación. Resulta fundamental conocer aspectos como: la teoría del acortamiento de telómeros, el papel de la actividad física, el endotelio y los mecanismos moleculares que participan en este proceso, pues ofrecerá herramientas para hacer un manejo acertado de este grupo poblacional, sobre el cual son pocos los estudios y la mayoría de las conductas son extrapoladas de grupos etarios con condiciones fisiológicas completamente diferentes.

  2. El impacto emocional del dolor y la enfermedad

    OpenAIRE

    Hoyos, Graciela; Castillo, Alejandro; Fundación Valle de Lili

    2008-01-01

    El impacto emocional del dolor y la enfermedad/ ¿Qué es el dolor?/ Modelo multidimensional en el dolor crónico/ Adaptación del paciente al dolor/ Estrategias de adaptación/ Cambios de estilos de vida/ Expectativas y evaluaciones personales/ Relaciones laborales familiares y sociales/ Depresión y dolor crónico/ Somatización y dolor crónico/ Tratamiento/ Farmacoterapia/ Psicoterapia

  3. Enfermedades laborales, una pandemia que requiere prevención

    Directory of Open Access Journals (Sweden)

    Joaquín Nieto

    2014-03-01

    Full Text Available Las enfermedades relacionadas con el trabajo constituyen una pandemias por la que cada año mueren 2.350.000 personas, de las que unas 340.000 se corresponden con accidentes de trabajo y el resto, unos 2.020.000 por enfermedad laboral, la mayor parte de ellas invisibles porque en muchas ocasiones ni se reconocen ni se registran. OIT se marca desde su nacimiento el principal objetivo de la mejora de las condiciones de trabajo El derecho a la salud y seguridad en el trabajo como principal compromiso, desarrollando normas internacionales para garantizar los derechos laborales en todo el mundo con el compromiso de mejorar el derecho a la salud y la seguridad en el trabajo. Así, de casi 200 convenios internacionales adoptados por la OIT, 40 van dedicados a esta materia, y desarrolla el Programa de Seguridad y Salud en el Trabajo y Medio Ambiente, SafeWork, al objeto de promover la conciencia mundial sobre la magnitud y las consecuencias de los accidentes, las lesiones y las enfermedades relacionadas con el trabajo. Afrontar el problema de las enfermedades laborales en España, requiere 5 líneas de actuación: 1 Desarrollo de normas, 2 contar con mecanismos y recursos humanos que permitan el cumplimiento de la normativa, 3 investigación, estudio y generar conocimiento, 4 cooperación entre Gobierno, empresa, sindicatos y trabajadores y 5 coherencia de políticas y adecuada colaboración entre las distintas Administraciones, principalmente de la Administración Laboral y Sanitaria.

  4. Response of local vascular volumes to lower body negative pressure stress

    Science.gov (United States)

    Wolthuis, R. A.; Leblanc, A.; Carpentier, W. A.; Bergman, S. A., Jr.

    1975-01-01

    The present study involved an intravenous injection of radioactive iodinated serum albumin, equilibration of this isotope within the vascular space, and the continuous measurement of isotope activity over selected anatomical areas before, during and following multiple human LBNP tests. Both rate and magnitude of vascular pooling were distinctly different within each of five selected lower body anatomical areas. In the upper body, all areas except the abdomen showed depletions from their resting vascular volumes during LBNP. The presence of uniquely different pooling patterns in the lower body, the apparent stability of abdominal vascular volumes, and a possible decrease in cerebral blood volume during LBNP represent the major findings of this study.

  5. Comprehensive Overview of Contemporary Management Strategies for Cerebral Aneurysms.

    Science.gov (United States)

    Manhas, Amitoz; Nimjee, Shahid M; Agrawal, Abhishek; Zhang, Jonathan; Diaz, Orlando; Zomorodi, Ali R; Smith, Tony; Powers, Ciarán J; Sauvageau, Eric; Klucznik, Richard P; Ferrell, Andrew; Golshani, Kiarash; Stieg, Philip E; Britz, Gavin W

    2015-10-01

    Aneurysmal subarachnoid hemorrhage (SAH) remains an important health issue in the United States. Despite recent improvements in the diagnosis and treatment of cerebral aneurysms, the mortality rate following aneurysm rupture. In those patients who survive, up to 50% are left severely disabled. The goal of preventing the hemorrhage or re-hemorrhage can only be achieved by successfully excluding the aneurysm from the circulation. This article is a comprehensive review by contemporary vascular neurosurgeons and interventional neuroradiolgists on the modern management of cerebral aneurysms. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Incidencia de enfermedades en pejibaye (bactris gasipaes kunth para palmito

    Directory of Open Access Journals (Sweden)

    Carlos Arroyo

    2004-01-01

    Full Text Available Incidencia de enfermedades en pejibaye (Bactris gasipaes Kunth para palmito. Se determinó la incidencia de enfermedades en cuatro variedades de palmito de pejibaye (Bactris gasipaes Kunth, durante los 12 primeros meses de desarrollo. Tres de ellas sin espinas (Diamantes-1, Diamantes- 10 y Diamantes-20 y una con espinas (Utilis-Tucurrique. El ensayo se efectuó en la región de Guápiles, Costa Rica, de mayo del 2000 a abril del 2001. Los patógenos que se encontraron en las plantas de pejibaye fueron: Colletotrichum sp., (mancha negra de las hojas; Phytophthora palmivora, (pudrición cogollo u hoja guía; Drechslera setariae, (mancha de anillo; Lasiodiplodia theobromae (hoja deshilachada y Erwinia sp., (pudrición del tallo, quema de hojas y hoja guía. La variedad Utilis-Tucurrique, presentó la mayor susceptibilidad a todas las enfermedades, pero en ningún caso éstas llegaron a un nivel de importancia económica. La incidencia de Erwinia sp. y Phytophothora palmivora mostró mayor relación con la precipitación y alta temperatura.

  7. Enfermedad cardiovascular en pacientes cubanos afectados por Ataxia de Friedreich.

    Directory of Open Access Journals (Sweden)

    Tania Cruz Mariño

    2010-01-01

    Full Text Available Al describir la ataxia de Friedreich, Nicholaus hizo referencia a la patología cardiaca. Esta enfermedad autosómica recesiva se debe a una mutación dinámica en el gen FRDA, codificándose deficientemente la proteína Frataxina, conduciendo a estrés oxidativo y muerte celular cardiaca. La presente investigación se desarrolló con el objetivo de describir las anomalías cardiovasculares presentes en los pacientes cubanos afectados por ataxia de Friedreich. A los individuos con diagnóstico molecular confirmatorio de la enfermedad se les realizó electrocardiograma y ecocardiograma, así como evaluación clínica mediante escalas validadas internacionalmente: ICARS y SARA. Los trastornos de repolarización ventricular difusos, los trastornos de conducción intraauricular, así como los trastornos de la función diastólica resultaron hallazgos frecuentes. El patrón restrictivo apreciado provee evidencia invivo de que la enfermedad conduce a disfunción diastólica del ventrículo izquierdo. La ocurrencia de un Infarto Agudo del Miocardio silente indica la importancia de identificar formas incipientes de afectación miocárdica.

  8. Calidad de vida en adultos del Paraguay con enfermedad celiaca

    Directory of Open Access Journals (Sweden)

    Raúl Emilio Real-Delor

    2018-01-01

    Full Text Available La enfermedad celiaca altera el estado emocional, las relaciones sociales, la autonomía y la percepción de la salud, afectando la calidad de vida relacionada a la salud. Los objetivos fueron determinar la calidad de vida relacionada a la salud en adolescentes y adultos con enfermedad celiaca e investigar los factores que la afectan. Se realizó un estudio observacional, prospectivo, realizado en adolescentes y adultos del Paraguay portadores de enfermedad celiaca con al menos 6 meses en dieta sin gluten. Se aplicó el cuestionario CD-QOL. Fueron incluidos 114 sujetos, con edad media 30±10 años, siendo 58% del sexo femenino. La calidad de vida fue buena en 25%, regular en 49% y mala en 26%. Los factores asociados significativamente a mejor calidad de vida fueron el sexo femenino, el grupo etario >30 años y realizar actividades fuera del hogar. Se concluye que la calidad de vida de los celiacos adolescentes y adultos es regular en 49% de los encuestados.

  9. Seguimiento al hogar de personas con antecedentes de enfermedad mental

    Directory of Open Access Journals (Sweden)

    Esguerra de Cárdenas Irene

    1995-12-01

    Full Text Available

    El "programa de apoyo y seguimiento al hogar de personas con antecedentes de enfermedad mental" se inició formalmente en marzo de 1993 en la Clínica Nuestra Señora de la Paz. Surgió de la necesidad de implementar acciones concretas al egreso de los pacientes de la institución, tendientes a reforzar la responsabilidad de éstos en su tratamiento y manejo de la enfermedad en el hogar y además de ofrecer un recurso de apoyo para escuchar sus inquietudes y preocupaciones. El propósito del programa es proporcionar al enfermo mental y a su familia un apoyo permanente al egresar de la Institución, en lo relacionado con el manejo de dificultades o problemas que se presenten durante el proceso de la enfermedad, el tratamiento y la reinserción del paciente al hogar y al medio social. Dentro de las estrategias de trabajo se contemplan reuniones semanales con grupos de pacientes próximos a salir de la clínica, reuniones periódicas de reforzamiento con personas inscritas al programa, seguimiento telefónico o mediante entrevistas individuales y/o familiares. Hasta el momento han asistido a las reuniones de egreso cerca de 400 pacientes y se han inscrito voluntariamente al programa 150 personas.

  10. Enfermedades genéticas del ADN mitocondrial humano

    Directory of Open Access Journals (Sweden)

    Solano Abelardo

    2001-01-01

    Full Text Available Las enfermedades mitocondriales son un grupo de trastornos que están producidos por un fallo en el sistema de fosforilación oxidativa (sistema Oxphos, la ruta final del metabolismo energético mitocondrial, con la consiguiente deficiencia en la biosíntesis del trifosfato de adenosina (ATP, por sus siglas en inglés. Parte de los polipéptidos que componen este sistema están codificados en el ácido desoxirribonucleico (DNA mitocondrial y, en los últimos años, se han descrito mutaciones que se han asociado con síndromes clínicos bien definidos. Las características genéticas del DNA mitocondrial, herencia materna, poliplasmia y segregación mitótica, confieren a estas enfermedades propiedades muy particulares. Las manifestaciones clínicas de estas enfermedades son muy heterogéneas y afectan a distintos órganos y tejidos por lo que su correcto diagnóstico implica la obtención de datos clínicos, morfológicos, bioquímicos y genéticos. El texto completo en inglés de este artículo está disponible en: http://www.insp.mx/salud/index.html

  11. Diagnóstico precoz de enfermedades pulmonares por tabaquismo

    Directory of Open Access Journals (Sweden)

    Dr. D. Rodrigo Gil

    2010-09-01

    Full Text Available El tabaquismo es una epidemia y en Chile la prevalencia no ha disminuido. Entre las causas más importantes de muerte por tabaquismo están el cáncer pulmonar y la enfermedad pulmonar obstructiva crónica (EPOC. La erradicación del tabaquismo es la mejor estrategia de prevención de estas enfermedades. La segunda estrategia es la detección precoz de ellas. Sin embargo la EPOC está sub diagnosticada en todo el mundo. No está claro si la solución es hacer más espirometrías en población de riesgo. Es posible que otros métodos diagnósticos como la tomografía axial computada de tórax (TAC y la difusión pulmonar, puedan mejorar la capacidad de diagnóstico precoz de esta enfermedad. El cáncer pulmonar es el más mortal de los cánceres. El diagnóstico en etapas tempranas mejora significativamente su pronóstico. Hay varios estudios en curso que evalúan el beneficio de hacer pesquisa de cáncer pulmonar con TAC.

  12. Tuberculosis como enfermedad ocupacional Tuberculosis as occupational disease

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    Alberto Mendoza-Ticona

    2012-06-01

    Full Text Available Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Perú están normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos aún no han sido suficientemente socializados. En este trabajo se presenta información sobre el riesgo de adquirir tuberculosis en el lugar de trabajo, se revisan las evidencias para declarar a la tuberculosis como enfermedad ocupacional en trabajadores de salud y se presenta la legislación peruana vigente al respecto.There is enough evidence to declare tuberculosis as an occupational disease among healthcare workers. In Peru, there are regulations granting employment rights regarding tuberculosis as an occupational disease, such as healthcare coverage for temporary or permanent disability. However, these rights have not been sufficiently socialized. This study presents information on the risk of acquiring tuberculosis in the workplace, and a review of the evidence to declare tuberculosis as an occupational disease among health care workers, presenting the current Peruvian law related.

  13. Las enfermedades de transmisión sexual en embarazadas

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    Denis Berdasquera Corcho

    Full Text Available Se realizó una investigación descriptiva de corte transversal en la que se estudiaron 351 embarazadas captadas entre el 1ro de enero y el 31 de diciembre de 1998 en el municipio Guanajay. Para la recogida de la información se utilizó un formulario, donde se estudiaron variables biológicas y socioculturales obtenidas de las historias clínicas de las gestantes. Predominaron las embarazadas en edades de 20 a 34 años, un alto nivel de escolaridad, más de 55 % de amas de casa, con pareja estable y más del 90 % habían comenzado sus relaciones sexuales antes de cumplir los 20 años. La moniliasis y la trichomoniasis fueron las enfermedades que mayores prevalencias presentaron, seguidas en orden decreciente de la blenorragia, el herpes simple, el condiloma acuminado, la hepatitis B, la sífilis, y el VIH/SIDA. La vigilancia de la blenorragia en la población estudiada no fue adecuada por una deficiente pesquisa de esta enfermedad. La distribución de gestantes con enfermedades de transmisión sexual, según variables socioculturales, tuvo un comportamiento similar a la distribución general de estas en el total de las embarazadas.

  14. Multiple Spontaneous Cerebral Microbleeds and Leukoencephalopathy in PSEN1-Associated Familial Alzheimer's Disease: Mirror of Cerebral Amyloid Angiopathy?

    Science.gov (United States)

    Floris, Gianluca; Di Stefano, Francesca; Cherchi, Maria Valeria; Costa, Gianna; Marrosu, Francesco; Marrosu, Maria Giovanna

    2015-01-01

    Cerebral microbleeds (CMB) might reflect specific underlying vascular pathologies like cerebral amyloid angiopathy (CAA). In the present study we report the gradient-echo MRI pattern of two siblings with P284S PSEN1 mutation. T2* gradient-echo images of the two subjects demonstrated multiple microbleeds in lobar regions. The role and causes of CMB in sporadic Alzheimer's disease (AD) patients have not been clearly established and useful contributions could derive from familial AD studies. Furthermore, since CAA is a potential risk factor for developing adverse events in AD immunization trials, the identification in vivo of CAA through non-invasive MRI methods could be useful to monitoring side effects.

  15. Unilateral cerebral polymicrogyria with ipsilateral cerebral hemiatrophy

    Energy Technology Data Exchange (ETDEWEB)

    Hayakawa, Katsumi [Department of Radiology, Kyoto City Hospital, 1-2 Higashi-Takada-cho, Mibu, Nakagyo-ku, 604-8845 Kyoto (Japan); Kanda, Toyoko; Yamori, Yuriko [Department of Pediatric Neurology, St. Joseph Hospital for Handicapped Children, 603-8323 Kyoto (Japan)

    2002-10-01

    We evaluated six children in whom MR imaging showed unilateral cerebral polymicrogyria associated with ipsilateral cerebral atrophy and ipsilateral brain stem atrophy. The aim of this study was to clarify whether this disorder based on neuroimaging constitutes a new homogeneous clinical entity. The subjects were six children whose ages at the time of MR imaging ranged from 8 months to 11 years. Their clinical and MR features were analyzed. All of the children were born between 38 and 42 weeks gestation, without any significant perinatal events. Spastic hemiplegia and epilepsy were observed in all of the patients, and mental retardation was observed in four. The MR findings included unilateral cerebral polymicrogyria associated with ipsilateral cerebral hemiatrophy and ipsilateral brain stem atrophy in all patients. The ipsilateral sylvian fissure was hypoplastic in four patients. These patients showed relatively homogeneous clinical and neuroimaging features. Although the additional clinical features varied according to the site and the extent affected by the polymicrogyria, this disorder could constitute a new relatively homogeneous clinical entity. (orig.)

  16. Unilateral cerebral polymicrogyria with ipsilateral cerebral hemiatrophy

    International Nuclear Information System (INIS)

    Hayakawa, Katsumi; Kanda, Toyoko; Yamori, Yuriko

    2002-01-01

    We evaluated six children in whom MR imaging showed unilateral cerebral polymicrogyria associated with ipsilateral cerebral atrophy and ipsilateral brain stem atrophy. The aim of this study was to clarify whether this disorder based on neuroimaging constitutes a new homogeneous clinical entity. The subjects were six children whose ages at the time of MR imaging ranged from 8 months to 11 years. Their clinical and MR features were analyzed. All of the children were born between 38 and 42 weeks gestation, without any significant perinatal events. Spastic hemiplegia and epilepsy were observed in all of the patients, and mental retardation was observed in four. The MR findings included unilateral cerebral polymicrogyria associated with ipsilateral cerebral hemiatrophy and ipsilateral brain stem atrophy in all patients. The ipsilateral sylvian fissure was hypoplastic in four patients. These patients showed relatively homogeneous clinical and neuroimaging features. Although the additional clinical features varied according to the site and the extent affected by the polymicrogyria, this disorder could constitute a new relatively homogeneous clinical entity. (orig.)

  17. Vascular hemichorea: case report and review

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    Bárbara Martínez Alfonzo

    2014-04-01

    Full Text Available Chorea rarely complicates ischemic or hemorrhagic cerebral vascular lesions. Clinical symptoms usually involve one side of the body while the injury is situated on the contralateral cerebral hemisphere. Spontaneous remission is the norm, but sometimes symptomatic treatment is required. A 58-year-old male patient who suffers from untreated high blood pressure, type II obesity, smokes 6 packs of cigarettes per year and has a moderate intake of alcohol is presented. The patient’s recent history began three days before he appeared at the Emergency Department. His symptoms were ceaseless, involuntary movements in his left arm and foot during day and night with no restriction of voluntary movements. Physical examination and laboratory tests revealed no other findings. Magnetic resonance imaging of the brain showed hyperintensity in the right posterolateral thalamic region consistent with ischemic cerebrovascular disease. Symptomatic therapy was indicated and his underlying conditions were addressed. The importance of this case lies on the low prevalence as well as the scarcity of publications regarding vascular causes of hemichorea, including diagnosis, therapy and prognosis.

  18. Relation of plasma homocyst(e)ine to cerebral infarction and cerebral atherosclerosis.

    Science.gov (United States)

    Yoo, J H; Chung, C S; Kang, S S

    1998-12-01

    A number of investigations support the theory that the elevated plasma homocyst(e)ine is associated with occlusive vascular disease. The aim of this study is to examine whether moderate hyperhomocyst(e)inemia is an independent risk factor for cerebral infarction. In addition, we examined the association between plasma homocyst(e)ine and the severity of cerebral atherosclerosis. We conducted a hospital-based case-control study with 140 male controls and 78 male patients with nonfatal cerebral infarction, aged between 39 and 82 years. Plasma homocyst(e)ine levels were analyzed in 218 subjects. Fifty-five patients were evaluated for cerebral vascular stenosis by MR angiography. The mean plasma level of homocyst(e)ine was higher in cases than in controls (11.8+/-5.6 versus 9.6+/-4.1 micromol/L; P=0.002). The proportion of subjects with moderate hyperhomocyst(e)inemia was significantly higher in cases than in controls (16.7% versus 5.0%; P=0.004). Based on the logistic regression model, the odds ratio of the highest 5% of homocyst(e)ine levels in control group was 4.17 (95% confidence interval, 3.71 to 4. 71)(P=0.0001). After additional adjustment for total cholesterol, hypertension, smoking, diabetes, and age, the odds ratio was 1.70 (95% confidence interval, 1.48 to 1.95) (P=0.0001). The plasma homocyst(e)ine levels of patients having vessels with 3 or 2 stenosed sites were significantly higher than those of patients having vessels with 1 stenosed site or normal vessels (14.6+/-1.4, 11.0+/-1.4 versus 7.8+/-1.5, 8.9+/-1.4 micromol/L respectively; P<0. 02). Multiple logistic regression analysis revealed that moderate hyperhomocyst(e)ienemia was significantly associated with the number of stenosed vessels (P=0.001). These findings suggest that moderate hyperhomocyst(e)inemia is an independent risk factor for cerebral infarction and may predict the severity of cerebral atherosclerosis in patients with cerebral infarction.

  19. Síndrome coronario agudo y enfermedad de Erdheim-Chester. Patogénesis e implicaciones terapéuticas

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    José Carlos Alarcón-García

    2017-05-01

    Full Text Available La enfermedad de Erdheim-Chester es una histiocitosis celular diferente a la histiocitosis de Langerhans, de origen incierto. Se caracteriza por una implicación multi-orgánica debida a la infiltración de los histiocitos CD68+/CD1a-, en forma de xantogranulomas, que afectan principal y comúnmente a la metáfisis y diáfisis de huesos largos. El diagnóstico se realiza mediante biopsia, donde se revelan histiocitos CD68+/CD1a-, carencia de proteína S, y presencia de gránulos de Birbeck. Se ha subestimado la implicación cardiovascular. Reportamos un caso de un varón de 67 años con la enfermedad de Erdheim-Chester e infarto de miocardio agudo, debido a implicación coronaria, además de enfermedad ósea, vascular, pituitaria y retroperitoneal. Revisamos la literatura relevante y describimos el tratamiento clínico de estos pacientes.

  20. Doença crônica, auto-avaliação de saúde e comportamento de risco: diferença de gênero Enfermedad crónica, auto-evaluación de salud y comportamiento de riesgo: diferencia de género Chronic diseases, self-perceived health status and health risk behaviors: gender differences

    Directory of Open Access Journals (Sweden)

    Sandhi Maria Barreto

    2009-11-01

    de confusão.OBJETIVO: Analizar la asociación entre relato de enfermedades crónicas con comportamientos de riesgo y auto-evaluación de la salud, según el género. MÉTODOS: Fueron incluidos 39.821 participantes con edad >30 años del Sistema de Vigilancia de Factores de Riesgo y Protección para Enfermedades Crónicas por Pesquisa Telefónica (VIGITEL realizado en 27 capitales brasileras en 2006. La variable dependiente fue construida por el relato de diagnóstico médico de diabetes, hipertensión e infarto y/o accidente vascular cerebral. Los individuos fueron agrupados según ausencia de enfermedad, una enfermedad crónica, y más de una. La asociación de esa variable con comportamiento de riesgo (compuesto por: fumar, consumir carnes con grasa y leche integral, no realizar actividad física regular en el ocio, no consumir frutas y hortalizas regularmente y adicionar sal a la comida lista, auto-evaluación de la salud, indicadores de salud y sociodemográficos fue investigada por regresión logística multinomial según el sexo, teniendo como referencia la ausencia de enfermedad. RESULTADOS: El relato de una y más de una enfermedad crónica fue mayor entre hombres y mujeres viejos y con menor escolaridad, con IMC>30kg/m², y que hacían dieta. Se observó relación inversa entre número de comportamientos de riesgo y relato de dos o más enfermedades (OR = 0,64; IC 95%: 0,54;0,76 entre hombres y (OR=0,86; IC 95%: 0,77;0,97 entre mujeres. Hombres (OR= 33,61; IC 95%: 15,70; 71,93 y mujeres (OR= 13,02; IC 95%: 6,86;24,73 que auto-evaluaron la salud como mala relataron más enfermedades crónicas. No hubo interacción estadística entre auto-evaluación de la salud y sexo. CONCLUSIONES: Asociación inversa entre número de comportamientos de riesgo y relato de dos o más enfermedades crónicas sugiere causalidad reversa y/o mayor sobrevivencia de los que se cuidan mejor. Hombres parecen percibir su salud peor que las mujeres en la presencia de enfermedad cr

  1. Bienestar espiritual de los pacientes con enfermedades crónicas de una institución de cuidado domiciliario

    Directory of Open Access Journals (Sweden)

    Aneth Cristina Rivas Castro

    2013-11-01

    Full Text Available Title: Spiritual welfare of patients with chronic diseases who enter a care institution Determinar el bienestar espiritual de los pacientes con enfermedades crónicas de una institución de cuidado domiciliario. Metodología: Estudio descriptivo, transversal. La muestra estuvo representada por 106 pacientes con enfermedades crónicas, a los cuales se aplicó la escala de bienestar espiritual de Jarel, que valoró las dimensiones: Fe y creencias, vida / autorresponsabilidad y satisfacción / vida. Resultados: Los resultados evidenciaron que el 53% de los pacientes fueron de sexo masculino, predominando los pacientes con 60 años o más (80%, destacándose la presencia de enfermedades crónicas, siendo la más comunes las cerebrovasculares, las cuales ocasionaron discapacidad. Se evidenció que el 100% de ellos creen en un ser superior, oran y comparten la responsabilidad de su vida con sus familiares y no se encuentran satisfechos con su vida, puesto que la cronicidad en sí misma cambia la vida del paciente y su familia. Conclusiones: Los consultados tienen mediano bienestar espiritual, debido a que perciben cansancio en el rol del cuidador. Fortalecen su bienestar porque creen en Dios, sienten que sus familiares son un apoyo, y la discapacidad que genera la enfermedad les provoca poca satisfacción ante la vida. (DUAZARY 2013 No. 1, 20 - 25 Abstract Objective: To determine the spiritual welfare of patients with chronic diseases in a home care institution. Methodology: descriptive, transversal study. The sample was represented by 106 patients with chronic diseases, which was applied to the spiritual well-being scale Jarel, which valued dimensions: Faith and beliefs, life / self-reliance and satisfaction / life. Results: The results showed that 53% of patients were male, predominantly patients with 60 years or more (80%, and the presence of chronic diseases, the most common cerebro-vascular diseases, which caused disability. It showed that 100

  2. Endothelial Mineralocorticoid Receptor Mediates Parenchymal Arteriole and Posterior Cerebral Artery Remodeling During Angiotensin II-Induced Hypertension.

    Science.gov (United States)

    Diaz-Otero, Janice M; Fisher, Courtney; Downs, Kelsey; Moss, M Elizabeth; Jaffe, Iris Z; Jackson, William F; Dorrance, Anne M

    2017-12-01

    The brain is highly susceptible to injury caused by hypertension because the increased blood pressure causes artery remodeling that can limit cerebral perfusion. Mineralocorticoid receptor (MR) antagonism prevents hypertensive cerebral artery remodeling, but the vascular cell types involved have not been defined. In the periphery, the endothelial MR mediates hypertension-induced vascular injury, but cerebral and peripheral arteries are anatomically distinct; thus, these findings cannot be extrapolated to the brain. The parenchymal arterioles determine cerebrovascular resistance. Determining the effects of hypertension and MR signaling on these arterioles could lead to a better understanding of cerebral small vessel disease. We hypothesized that endothelial MR signaling mediates inward cerebral artery remodeling and reduced cerebral perfusion during angiotensin II (AngII) hypertension. The biomechanics of the parenchymal arterioles and posterior cerebral arteries were studied in male C57Bl/6 and endothelial cell-specific MR knockout mice and their appropriate controls using pressure myography. AngII increased plasma aldosterone and decreased cerebral perfusion in C57Bl/6 and MR-intact littermates. Endothelial cell MR deletion improved cerebral perfusion in AngII-treated mice. AngII hypertension resulted in inward hypotrophic remodeling; this was prevented by MR antagonism and endothelial MR deletion. Our studies suggest that endothelial cell MR mediates hypertensive remodeling in the cerebral microcirculation and large pial arteries. AngII-induced inward remodeling of cerebral arteries and arterioles was associated with a reduction in cerebral perfusion that could worsen the outcome of stroke or contribute to vascular dementia. © 2017 American Heart Association, Inc.

  3. Hemodynamics in the cerebral cortex and basal ganglia

    International Nuclear Information System (INIS)

    Yamaguchi, Shinya; Fukuyama, Hidenao; Yamauchi, Hiroshi; Kimura, Jun

    1991-01-01

    We examined ten healthy volunteers using positron emission tomography (PET) in order to elucidate regional changes and correlations in the cerebral circulation and oxygen metabolism. We also studied eight lacunar stroke patients so as to disclose the influences of vascular risk factors and aging on the cerebral blood flow and metabolism. We can conclude from our result as follows: (1) Cerebral blood volume (CBV) was minimum in the basal ganglia and cerebral blood flow (CBF)/CBV ratio was higher than that of cerebral cortex in healthy volunteers; (2) CBF of gray matter in healthy volunteers correlated with CBV and cerebral metabolic rate of oxygen where oxygen extraction fraction inversely correlated with CBF, CBV, and CBF/CBV; and (3) the basal ganglia CBF/CBV ratio in lacunar stroke patients was lower than that of healthy volunteers. These findings suggested that the perfusion pressure in the basal ganglia was so high in the normal condition than the angionecrosis or occlusion in the perforating arteries would be induced, especially in the aged and hypertensive patients. (author)

  4. La enfermedad periodontal como riesgo de enfermedades sistémicas The periodontal disease as a risk for systemic diseases

    Directory of Open Access Journals (Sweden)

    Maritza Peña Sisto

    2008-03-01

    Full Text Available Se realizó una revisión bibliográfica exhaustiva acerca de la presencia de enfermedad periodontal como factor de riesgo asociado con diversas enfermedades sistémicas. Algunos autores han propuesto el nacimiento de la medicina periodontal, como nueva disciplina, para explicar estas asociaciones. Las evidencias que emergieron en el último decenio arrojaron luz sobre el lado inverso de la relación entre salud general y salud bucal, o sea, los efectos potenciales de la enfermedad periodontal sobre una amplia variedad de sistemas de órganos. En los últimos años han surgido numerosos informes basados en estudios epidemiológicos en los que las infecciones buco-dentales se asocian con enfermedades sistémicas, entre ellas alteraciones cerebrovasculares, respiratorias, diabetes mellitus y resultados adversos del embarazo, debido a los lipopolisacáridos, las bacterias gramnegativas viables del biofilm y citoquinas proinflamatorias que pueden ingresar al torrente sanguíneo e influir en la salud general y susceptibilidad a ciertas enfermedades. Se reúnen los modelos de interacción y mecanismos propuestos, además de evidencias que sustentan las teorías proclamadas, prestando especial interés a la causalidad entre ambos procesos.An exhaustive bibliographic review of the presence of the periodontal disease as a risk factor associated with diverse systemic diseases was made. Some authors have proposed the emergence of periodontal medicine as a new discipline to explain these associations. The evidences that appeared in the last decade shed light on the opposite side of the relation between general health and oral health, that is, the potential effects of the periodontal diseases on a wide range of organ systems. In the last years, several reports have been based on epidemiological studies in which the oro-dental diseases are associated with systemic diseases, such as cerebrovascular and respiratory disorders, diabetes mellitus and adverse

  5. The Effect of Vascular Neuropathology on Late-life Cognition: Results from the SMART Project.

    Science.gov (United States)

    Kryscio, R J; Abner, E L; Nelson, P T; Bennett, D; Schneider, J; Yu, L; Hemmy, L S; Lim, K O; Masaki, K; Cairns, N; Xiong, C; Woltjer, R; Dodge, H H; Tyas, S; Fardo, D W; Lou, W; Wan, L; Schmitt, F A

    2016-06-01

    Cerebral vascular pathology may contribute to cognitive decline experienced by some elderly near death. Given evidence for mixed neuropathologies in advanced age, preventing or reducing cerebrovascular burden in late life may be beneficial. To correlate measures of cerebral vascular pathology with cognitive trajectories. Observational study. A cohort of 2,274 individuals who came to autopsy at a mean age of 89.3 years and 82 percent of whom had at least two cognitive assessments within the last six years of life was compiled from six centers conducting longitudinal studies. For each cognitive domain: immediate and delayed memory, language, and naming, three trajectories were examined: good, intermediate, and poor cognition. The probability of a participant belonging to each trajectory was associated with measures of cerebral vascular pathology after adjustment for demographics, APOE, and Alzheimer neuropathology. A large proportion of the cohort (72-94%) experienced good or intermediate cognition in the four domains examined. The presence of arteriolosclerosis and the presence of lacunar infarcts doubled the odds of belonging to the poor cognitive trajectory for language when compared to the good trajectory. The presence of lacunar infarcts increased the odds of an intermediate or poor trajectory for immediate and delayed recall while the presence of large artery infarcts increased the odds of poor trajectories for all four cognitive domains examined. Microinfarcts and cerebral amyloid angiopathy had little effect on the trajectories. Indicators of cerebral vascular pathology act differently on late life cognition.

  6. A study of cerebral circulation, metabolism and MRI findings in patients with chronic cerebral circulatory insufficiency

    International Nuclear Information System (INIS)

    Kondo, Susumu

    1995-01-01

    Chronic cerebral circulatory insufficiency (CCCI) is a recently proposed clinical entity characterized by symptoms such as dizziness, a feeling of heavy-headedness or vague numbness without any neurological signs or organic vascular lesions on CT. In order to elucidate its pathogenesis, ultrasonic quantitative blood flow measurement system, positron emission tomography (PET) and MRI were employed to study three groups of subjects: 60 subjects with CCCI (group A), 44 subjects with risk factors for cerebrovascular disease but without neurological abnormalities (group B), and 40 normal healthy volunteers (group C). The results are summarized as follows: Mean common carotid blood flow decreased with age in all groups. Common carotid blood flow was lowest in group A and second lowest in group B in every decade of patient age. PET study revealed that CBF and CMRO 2 in all regions examined were significantly lower in group A than in group C. The incidence of MR signal abnormalities in the white matter increased with age. Group A had the highest incidence, and group C had the lowest. Reduction in mean common carotid blood flow and cerebral blood flow was associated with increasing incidence and severity of MR signal abnormalities. These findings indicate that CCCI is a pathologic condition closely related to diffuse cerebral low perfusion resulting from cerebral arteriosclerosis. The symptoms seen in this condition, which are apt to be taken lightly, may warn of impending ischemic stroke. (author)

  7. Risk factors for vascular dementia: Hypotension as a key point

    Directory of Open Access Journals (Sweden)

    Rita Moretti

    2008-04-01

    Full Text Available Rita Moretti, Paola Torre, Rodolfo M Antonello, Davide Manganaro, Cristina Vilotti, Gilberto PizzolatoDepartment of Internal Medicine and Clinical Neurology University of Trieste, ItalyAbstract: Physiologically, the cerebral autoregulation system allows maintenance of constant cerebral blood flow over a wide range of blood pressure. In old people, there is a progressive reshape of cerebral autoregulation from a sigmoid curve to a straight line. This implies that any abrupt change in blood pressure will result in a rapid and significant change in cerebral blood flow. Hypertension has often been observed to be a risk factor for vascular dementia (VaD and sometimes for Alzheimer disease although not always. Indeed, high blood pressure may accelerate cerebral white matter lesions, but white matter lesions have been found to be facilitated by excessive fall in blood pressure, including orthostatic dysregulation and postprandial hypotension. Many recent studies observed among other data, that there was a correlation between systolic pressure reduction and cognitive decline in women, which was not accounted for by other factors. Baseline blood pressure level was not significantly related to cognitive decline with initial good cognition. Some researchers speculate that blood pressure reduction might be an early change of the dementing process. The most confounding factor is that low pressure by itself might be a predictor of death; nevertheless, the effect of low blood pressure on cognition is underestimated because of a survival bias. Another explanation is that clinically unrecognized vascular lesions in the brain or atherosclerosis are responsible for both cognitive decline and blood pressure reduction. We discuss the entire process, and try to define a possible mechanism that is able to explain the dynamic by which hypotension might be related to dementia.Keywords: vascular dementia, hypotension, low blood pressure, alzheimer disease

  8. Vascular grading of angiogenesis

    DEFF Research Database (Denmark)

    Hansen, S; Grabau, D A; Sørensen, Flemming Brandt

    2000-01-01

    The study aimed to evaluate the prognostic value of angiogenesis by vascular grading of primary breast tumours, and to evaluate the prognostic impact of adding the vascular grade to the Nottingham Prognostic Index (NPI). The investigation included 836 patients. The median follow-up time was 11...... years and 4 months. The microvessels were immunohistochemically stained by antibodies against CD34. Angiogenesis was graded semiquantitatively by subjective scoring into three groups according to the expected number of microvessels in the most vascular tumour area. The vascular grading between observers...... for 24% of the patients, who had a shift in prognostic group, as compared to NPI, and implied a better prognostic dissemination. We concluded that the angiogenesis determined by vascular grading has independent prognostic value of clinical relevance for patients with breast cancer....

  9. Vascular grading of angiogenesis

    DEFF Research Database (Denmark)

    Hansen, S; Grabau, D A; Sørensen, Flemming Brandt

    2000-01-01

    The study aimed to evaluate the prognostic value of angiogenesis by vascular grading of primary breast tumours, and to evaluate the prognostic impact of adding the vascular grade to the Nottingham Prognostic Index (NPI). The investigation included 836 patients. The median follow-up time was 11...... years and 4 months. The microvessels were immunohistochemically stained by antibodies against CD34. Angiogenesis was graded semiquantitatively by subjective scoring into three groups according to the expected number of microvessels in the most vascular tumour area. The vascular grading between observers...... impact for 24% of the patients, who had a shift in prognostic group, as compared to NPI, and implied a better prognostic dissemination. We concluded that the angiogenesis determined by vascular grading has independent prognostic value of clinical relevance for patients with breast cancer....

  10. Cerebral Palsy (For Parents)

    Science.gov (United States)

    ... Going to an Occupational Therapist Scoliosis In the Band: Jens' Story Cerebral ... KidsHealth® is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995- ...

  11. Cerebral Contusions and Lacerations

    Science.gov (United States)

    ... Contusions and Lacerations Concussion Diffuse Axonal Injury Intracranial Hematomas Skull Fracture Sports-Related Concussion Cerebral contusions are ... Contusions and Lacerations Concussion Diffuse Axonal Injury Intracranial Hematomas Skull Fracture Sports-Related Concussion NOTE: This is ...

  12. [Effects of combined action of radon baths and transcranial magnetotherapy on cerebral circulation in patients in an intermediate period of a mild craniocerebral trauma].

    Science.gov (United States)

    Moliavchikova, O V; Cherevashchenko, L A; Grinzaĭd, Iu M; Aĭvazov, V N; Zhuravlev, M E

    2007-01-01

    The authors propose combined therapy improving cerebral circulation in patients in an intermediate period of a mild craniocerebral trauma. The combination consists of radon baths and transcranial magnetotherapy which raise blood volume filling, relieve vascular resistance, improve venous outflow.

  13. Clinical and imaging characteristics of the vascular dementia. Preliminary studies

    International Nuclear Information System (INIS)

    Gomez Viera, Nelson; Rivero Arias, Edmundo; Perez Nellar, Jesus; Begueria Santos, Ramon; Arias Sifontes, William; Raiteris Flores, Juan

    1997-01-01

    A descriptive prospective study was carried out in 41 patients presenting with vascular dementia from Habana Vieja municipality, Havana City, in order to know some of the clinical and imaging characteristics of this disease. The main risk factors observed were the history of cerebrovascular disease and arterial hypertension. Depression, sleeping disorders and focal and pseudo bulbar neurologic signs were the most frequent clinical findings. Folstein neuropsychological test evidenced an important disorder of attention, calculation, the evocation memory and orientation. According to this test, 29 % of the patients had a severe dementia and nearly 50 % showed a severe handicap. The most frequent imaging findings observed in the computerized axial tomography of the cranium were cerebral atrophy, and single or multiple infarctions. Multiple cerebral infarctions, the lacunar status, subcortical encephalopathy of Binswanger, and single infarction located in cerebral areas related to cognition were considered as possible psychopathological mechanisms associated with the disease

  14. Cerebral venous angiomas

    International Nuclear Information System (INIS)

    Agnoli, A.L.; Hildebrandt, G.

    1985-01-01

    Clinical symptoms and radiological signs in 15 patients with cerebral venous malformations are presented and the diagnostic problems discussed. The circulation time in combination with cerebral malformations and angiomas of the scalp are described. CT findings in cases of venous malformations of the brain stem are evaluated. Spot-like enhancement, as well as sharply demarcated round shaped enhancement are characteristic for venous angiomas. Cavernous angiomas usually present as homogenous or inhomogenous round shaped enhanced areas. (Author)

  15. Cerebral cartography and connectomics

    OpenAIRE

    Sporns, Olaf

    2015-01-01

    Cerebral cartography and connectomics pursue similar goals in attempting to create maps that can inform our understanding of the structural and functional organization of the cortex. Connectome maps explicitly aim at representing the brain as a complex network, a collection of nodes and their interconnecting edges. This article reflects on some of the challenges that currently arise in the intersection of cerebral cartography and connectomics. Principal challenges concern the temporal dynamic...

  16. Complications of endovascular treatment of cerebral aneurysms

    Energy Technology Data Exchange (ETDEWEB)

    Orrù, Emanuele, E-mail: surgeon.ema@gmail.com [Neuroradiology Department, Padua University Hospital, Via Giustiniani 2, Padua 35128 (Italy); Roccatagliata, Luca, E-mail: lroccatagliata@neurologia.unige.it [Neuroradiology Department, IRCCS San Martino University Hospital and IST, Largo Rosanna Benzi 10, Genoa 16132 (Italy); Department of Health Sciences (DISSAL), University of Genoa (Italy); Cester, Giacomo, E-mail: giacomo.cester@sanita.padova.it [Neuroradiology Department, Padua University Hospital, Via Giustiniani 2, Padua 35128 (Italy); Causin, Francesco, E-mail: francesco.causin@sanita.padova.it [Neuroradiology Department, Padua University Hospital, Via Giustiniani 2, Padua 35128 (Italy); Castellan, Lucio, E-mail: lucio.castellan@hsanmartino.it [Neuroradiology Department, IRCCS San Martino University Hospital and IST, Largo Rosanna Benzi 10, Genoa 16132 (Italy)

    2013-10-01

    The number of neuroendovascular treatments of both ruptured and unruptured aneurysms has increased substantially in the last two decades. Complications of endovascular treatments of cerebral aneurysms are rare but can potentially lead to acute worsening of the neurological status, to new neurological deficits or death. Some of the possible complications, such as vascular access site complications or systemic side effects associated with contrast medium (e.g. contrast medium allergy, contrast induced nephropathy) can also be encountered in diagnostic angiography. The most common complications of endovascular treatment of cerebral aneurysms are related to acute thromboembolic events and perforation of the aneurysm. Overall, the reported rate of thromboembolic complications ranges between 4.7% and 12.5% while the rate of intraprocedural rupture of cerebral aneurysms is about 0.7% in patients with unruptured aneurysms and about 4.1% in patients with previously ruptured aneurysms. Thromboembolic and hemorrhagic complications may occur during different phases of endovascular procedures and are related to different technical, clinical and anatomic reasons. A thorough knowledge of the different aspects of these complications can reduce the risk of their occurrence and minimize their clinical sequelae. A deep understanding of complications and of their management is thus part of the best standard of care.

  17. Nanomedicine in cerebral palsy

    Science.gov (United States)

    Balakrishnan, Bindu; Nance, Elizabeth; Johnston, Michael V; Kannan, Rangaramanujam; Kannan, Sujatha

    2013-01-01

    Cerebral palsy is a chronic childhood disorder that can have diverse etiologies. Injury to the developing brain that occurs either in utero or soon after birth can result in the motor, sensory, and cognitive deficits seen in cerebral palsy. Although the etiologies for cerebral palsy are variable, neuroinflammation plays a key role in the pathophysiology of the brain injury irrespective of the etiology. Currently, there is no effective cure for cerebral palsy. Nanomedicine offers a new frontier in the development of therapies for prevention and treatment of brain injury resulting in cerebral palsy. Nanomaterials such as dendrimers provide opportunities for the targeted delivery of multiple drugs that can mitigate several pathways involved in injury and can be delivered specifically to the cells that are responsible for neuroinflammation and injury. These materials also offer the opportunity to deliver agents that would promote repair and regeneration in the brain, resulting not only in attenuation of injury, but also enabling normal growth. In this review, the current advances in nanotechnology for treatment of brain injury are discussed with specific relevance to cerebral palsy. Future directions that would facilitate clinical translation in neonates and children are also addressed. PMID:24204146

  18. La enfermedad de manos, pies y boca (Hand, Foot, and Mouth Disease)

    Centers for Disease Control (CDC) Podcasts

    La enfermedad de manos, pies y boca es una enfermedad contagiosa que afecta principalmente a niños menores de cinco años. En este podcast, la doctora Eileen Schneider habla de los síntomas de la enfermedad de manos, pies y boca, cómo se propaga y cómo protegerse y proteger a sus hijos para que no se infecten con el virus.

  19. COLOFONIA DE PINÁCEAS CUBANAS PARA EL CONTROL DE ENFERMEDADES TROPICALES TRANSMITIDAS POR MOLUSCOS

    OpenAIRE

    Y. Arteaga-Crespo; L. R. Carballo-Abreu; R. Sotolongo-Sospedra; Y. Hevia-Jiménez; J. E. Tacoronte-Morales

    2010-01-01

    La esquistosomiasis, enfermedad tropical transmitida por molusco, ocupa el segundo lugar en enfermedades parasitarias después de la malaria. En Cuba no existe la esquistosomiasis aunque sí el riesgo a contraerla, puesto que en nuestra fauna se encuentran especies que pueden actuar como hospederos intermediarios del tremátodo causante de la enfermedad. El objetivo del trabajo fue evaluar el polvo de colofonia sobre larvas de Biomphalaria havanensis para el control de vectores que propagan la e...

  20. Enfermedad de Pompe de inicio temprano. A propósito de un caso

    OpenAIRE

    Grandez-Urbina, J. Antonio; Bustamante-Ubillus, Claudio; Farro-Calderon, Rossy; Linares-Alarcon, Ismael; Goyzueta-Knox, Silvana

    2013-01-01

    La enfermedad de Pompe es una enfermedad inusual de presentación temprana, causada por el déficit de la síntesis de α 1-4 glucosidasa ácida. Presentamos un caso de inicio insidioso descompensado evidenciándose dificultad respiratoria y cardiomiopatía. La enfermedad de Pompe es muy infrecuente, siendo el primer caso reportado en nuestro medio.

  1. Enfermedad de Pompe de inicio temprano: A propósito de un caso

    Directory of Open Access Journals (Sweden)

    J. Antonio Grandez-Urbina

    2013-10-01

    Full Text Available La enfermedad de Pompe es una enfermedad inusual de presentación temprana, causada por el déficit de la síntesis de α 1-4 glucosidasa ácida. Presentamos un caso de inicio insidioso descompensado evidenciándose dificultad respiratoria y cardiomiopatía. La enfermedad de Pompe es muy infrecuente, siendo el primer caso reportado en nuestro medio.

  2. ENFERMEDADES INFECCIOSAS EMERGENTES: EL TURNO DEL VIRUS DEL ZIKA

    Directory of Open Access Journals (Sweden)

    Carlos Arturo Álvarez Moreno

    2016-04-01

    Full Text Available

    Las enfermedades causadas por microorganismos han amenazado la salud del hombre por siglos y dependiendo de su forma de transmisión, pueden diseminarse algunas de una forma más rápida que otras. En general aquellas que se transmiten de personas y solo por contacto o por el aire son más difíciles de controlar. A continuación, me limito a describir solo algunos ejemplos de epidemias que han ocurrido a través de la historia humana y que probablemente por su impacto sobre la humanidad son más conocidas.

    La plaga, muerte negra o peste bubónica, la enfermedad causada por una bacteria, la Y. pestis, conocida desde la época de los griegos y romanos, se hizo famosa por la pandemia al final de la edad medieval (siglos XIV pero posteriormente se presentaron otras nueve pandemias, registrándose la última en 1720. Estas pandemias causaron la muerte de al menos 25 millones de personas (20- 25% de la población europea de ese entonces y contrario a lo que se piensa, todavía se siguen presentado casos en muchas partes del mundo. Esta pandemia no solo tuvo gran impacto en el sistema de salud, sino que cambió los comportamientos humanos, incluyendo los destierros, la aplicación de las cuarentenas e incluso fue un tema repetido de pintores y escritores relacionándola con la muerte, o dedicados a San Roque, protector contra la peste; cuadros como el del pintor flamenco Pieter Breughel, El triunfo de la muerte, o publicaciones como El Decamerón, El flautista de Hamelin y más recientemente la epidemia en Argel de 1965, que inspiró a Albert Camus para su novela La peste.

    Otras epidemias famosas han sido causadas por el cólera o cólera nostras o bisuchika mordexim, causada por una bacteria llamada Vibrio cholerae de la cual se tiene noticias de una epidemia en 1503 que afectó a la población asiática. En el siglo XIX se extendió por toda Europa y fue una causa recurrente de mortalidad. Sin embargo, esta enfermedad no desapareci

  3. A quantitative brain map of experimental cerebral malaria pathology.

    Directory of Open Access Journals (Sweden)

    Patrick Strangward

    2017-03-01

    Full Text Available The murine model of experimental cerebral malaria (ECM has been utilised extensively in recent years to study the pathogenesis of human cerebral malaria (HCM. However, it has been proposed that the aetiologies of ECM and HCM are distinct, and, consequently, no useful mechanistic insights into the pathogenesis of HCM can be obtained from studying the ECM model. Therefore, in order to determine the similarities and differences in the pathology of ECM and HCM, we have performed the first spatial and quantitative histopathological assessment of the ECM syndrome. We demonstrate that the accumulation of parasitised red blood cells (pRBCs in brain capillaries is a specific feature of ECM that is not observed during mild murine malaria infections. Critically, we show that individual pRBCs appear to occlude murine brain capillaries during ECM. As pRBC-mediated congestion of brain microvessels is a hallmark of HCM, this suggests that the impact of parasite accumulation on cerebral blood flow may ultimately be similar in mice and humans during ECM and HCM, respectively. Additionally, we demonstrate that cerebrovascular CD8+ T-cells appear to co-localise with accumulated pRBCs, an event that corresponds with development of widespread vascular leakage. As in HCM, we show that vascular leakage is not dependent on extensive vascular destruction. Instead, we show that vascular leakage is associated with alterations in transcellular and paracellular transport mechanisms. Finally, as in HCM, we observed axonal injury and demyelination in ECM adjacent to diverse vasculopathies. Collectively, our data therefore shows that, despite very different presentation, and apparently distinct mechanisms, of parasite accumulation, there appear to be a number of comparable features of cerebral pathology in mice and in humans during ECM and HCM, respectively. Thus, when used appropriately, the ECM model may be useful for studying specific pathological features of HCM.

  4. A quantitative brain map of experimental cerebral malaria pathology.

    Science.gov (United States)

    Strangward, Patrick; Haley, Michael J; Shaw, Tovah N; Schwartz, Jean-Marc; Greig, Rachel; Mironov, Aleksandr; de Souza, J Brian; Cruickshank, Sheena M; Craig, Alister G; Milner, Danny A; Allan, Stuart M; Couper, Kevin N

    2017-03-01

    The murine model of experimental cerebral malaria (ECM) has been utilised extensively in recent years to study the pathogenesis of human cerebral malaria (HCM). However, it has been proposed that the aetiologies of ECM and HCM are distinct, and, consequently, no useful mechanistic insights into the pathogenesis of HCM can be obtained from studying the ECM model. Therefore, in order to determine the similarities and differences in the pathology of ECM and HCM, we have performed the first spatial and quantitative histopathological assessment of the ECM syndrome. We demonstrate that the accumulation of parasitised red blood cells (pRBCs) in brain capillaries is a specific feature of ECM that is not observed during mild murine malaria infections. Critically, we show that individual pRBCs appear to occlude murine brain capillaries during ECM. As pRBC-mediated congestion of brain microvessels is a hallmark of HCM, this suggests that the impact of parasite accumulation on cerebral blood flow may ultimately be similar in mice and humans during ECM and HCM, respectively. Additionally, we demonstrate that cerebrovascular CD8+ T-cells appear to co-localise with accumulated pRBCs, an event that corresponds with development of widespread vascular leakage. As in HCM, we show that vascular leakage is not dependent on extensive vascular destruction. Instead, we show that vascular leakage is associated with alterations in transcellular and paracellular transport mechanisms. Finally, as in HCM, we observed axonal injury and demyelination in ECM adjacent to diverse vasculopathies. Collectively, our data therefore shows that, despite very different presentation, and apparently distinct mechanisms, of parasite accumulation, there appear to be a number of comparable features of cerebral pathology in mice and in humans during ECM and HCM, respectively. Thus, when used appropriately, the ECM model may be useful for studying specific pathological features of HCM.

  5. Observaciones sobre accidentes de trabajo y enfermedades profesionales

    Directory of Open Access Journals (Sweden)

    Guillermo Sarmiento López

    1948-03-01

    Full Text Available En los tiempos antiguos no existía ley ni disposición alguna de carácter social que favoreciera a los trabajadores incapacitados por enfermedad o por accidente, por tanto, eran tratados como esclavos o considerados como animales. Los accidentes de trabajo y las enfermedades profesionales eran casi desconocidas antes de la introducción de la maquinaria en la industria, por lo cual no existía el derecho a indemnización por concepto de daños que sufriera el trabajador en el desempeño de sus labores. Solamente se conocen los edictos de Rotari (año 645 de la éra cristiana lanzados en Italia con el fin de reparar los accidentes de los obreros de la construcción y después, en la época del Renacimiento, algunas publicaciones que hablan de ciertas enfermedades de los trabajadores (Ellemborg 1473, Paracelso 1493-1541. Ya en la edad media la industria comenzó a tomar cierta importancia y dada la escasez de brazos, se vio obligado el patrón por fuerza de las circunstancias a prestar ayuda económica a los trabajadores incapacitados por una u otra causa. Los accidentes sucedidos en las industrias no se consideraban como de trabajo, por no conocerse el peligro que envolvía el empleo de la maqumana. En el siglo XVII y a principios del XVIII un médico italiano, Ramazzini habla del perjuicio que ocasionan ciertos trabajos en el organismo del individuo, produciendo alteraciones anatómicas y funcionales. Solamente a fines del siglo XVIII y a principios del XIX con la producción en masa, con el aumento del número de obreros y con la falta de protección, empezaron los accidentes de trabajo a hacerse notorios.

  6. Apoptosis y necroptosis en las enfermedades oftalmológicas

    Directory of Open Access Journals (Sweden)

    Raisa Ivis Beltrán Saínz

    Full Text Available La apoptosis es un término relativamente reciente mediante el cual se denomina a un tipo de muerte celular programada, que se encuentra ligada a diferentes procesos patológicos (cáncer, enfermedades inflamatorias y degenerativas. Actualmente se considera otro tipo de muerte celular no programada, que es la necrosis, la cual ocurre por mecanismos no modulados y se menciona una variedad de esta última: la necroptosis. Ambos procesos (apoptosis y necroptosis se encuentran presentes en la fisiopatología de algunas enfermedades oftalmológicas, lo que nos motivó a realizar una revisión bibliográfica renovada acerca del tema, con el objetivo de acrecentar el conocimiento sobre el tema y su relación con algunas enfermedades oftalmológicas en las que participan. Se revisaron textos básicos de Oftalmología y se localizaron artículos sobre el tema de los últimos 5 años a través Google como motor de búsqueda, el directorio LILACS y la consulta de las bases de datos PubMed y Hinari. Aún queda mucho por recorrer en el estudio de estos procesos que ocurren a nivel celular y que en ocasiones solo se han podido constatar a través de estudios de laboratorio y con modelos de animales. Su mayor comprensión puede constituir una vía para el surgimiento de nuevas terapéuticas antiapoptóticas y antinecroptóticas.

  7. Arterial spasm as a finding intimately associated with the onset of vascular headache

    Energy Technology Data Exchange (ETDEWEB)

    Garnic, J.D.; Schellinger, D.

    1983-03-01

    A patient with migraine headaches of the ''cluster'' variant type is presented in whom vasospasm of the middle cerebral artery, the anterior cerebral artery and the internal carotid artery triggered a pain episode identical in character and severity to the headaches which had led to his investigation. Vasospasm associated with the painful phase of headache in this case conflicts with the more accepted theory that the pain phase of a vascular headache is related to vasodilatation of cerebral or extracerebral vessels. The literature is reviewed.

  8. Arterial spasm as a finding intimately associated with the onset of vascular headache

    International Nuclear Information System (INIS)

    Garnic, J.D.; Schellinger, D.

    1983-01-01

    A patient with migraine headaches of the ''cluster'' variant type is presented in whom vasospasm of the middle cerebral artery, the anterior cerebral artery and the internal carotid artery triggered a pain episode identical in character and severity to the headaches which had led to his investigation. Vasospasm associated with the painful phase of headache in this case conflicts with the more accepted theory that the pain phase of a vascular headache is related to vasodilatation of cerebral or extracerebral vessels. The literature is reviewed. (orig.)

  9. Cerebral palsy and congenital malformations

    DEFF Research Database (Denmark)

    Garne, Ester; Dolk, Helen; Krägeloh-Mann, Inge

    2007-01-01

    AIM: To determine the proportion of children with cerebral palsy (CP) who have cerebral and non-cerebral congenital malformations. METHODS: Data from 11 CP registries contributing to the European Cerebral Palsy Database (SCPE), for children born in the period 1976-1996. The malformations were...... classified as recognized syndromes, chromosomal anomalies, cerebral malformations or non-cerebral malformations. Prevalence of malformations was compared to published data on livebirths from a European database of congenital malformations (EUROCAT). RESULTS: Overall 547 out of 4584 children (11.9%) with CP...... were reported to have a congenital malformation. The majority (8.6% of all children) were diagnosed with a cerebral malformation. The most frequent types of cerebral malformations were microcephaly and hydrocephaly. Non-cerebral malformations were present in 97 CP children and in further 14 CP children...

  10. Egas Moniz: 90 Years (1927–2017 from Cerebral Angiography

    Directory of Open Access Journals (Sweden)

    Marco Artico

    2017-09-01

    Full Text Available In June 2017 we celebrate the 90th anniversary of the pioneer discovery of cerebral angiography, the seminal imaging technique used for visualizing cerebral blood vessels and vascular alterations as well as other intracranial disorders. Egas Moniz (1874–1955 was the first to describe the use of this revolutionary technique which, until 1975 (when computed tomography, CT, scan was introduced in the clinical practice, was the sole diagnostic tool to provide an imaging of cerebral vessels and therefore alterations due to intracranial pathology. Moniz introduced in the clinical practice this fundamental and important diagnostic tool. The present contribution wishes to pay a tribute to the Portuguese neurosurgeon, who was also a distinguished neurologist and statesman. Despite his tremendous contribution in modern brain imaging, Egas Moniz was awarded the Nobel Prize in Physiology or Medicine in 1949 for prefrontal leucotomy, the neurosurgical intervention nowadays unacceptable, but should rather be remembered for his key contribution to modern brain imaging.

  11. Egas Moniz: 90 Years (1927-2017) from Cerebral Angiography.

    Science.gov (United States)

    Artico, Marco; Spoletini, Marialuisa; Fumagalli, Lorenzo; Biagioni, Francesca; Ryskalin, Larisa; Fornai, Francesco; Salvati, Maurizio; Frati, Alessandro; Pastore, Francesco Saverio; Taurone, Samanta

    2017-01-01

    In June 2017 we celebrate the 90th anniversary of the pioneer discovery of cerebral angiography, the seminal imaging technique used for visualizing cerebral blood vessels and vascular alterations as well as other intracranial disorders. Egas Moniz (1874-1955) was the first to describe the use of this revolutionary technique which, until 1975 (when computed tomography, CT, scan was introduced in the clinical practice), was the sole diagnostic tool to provide an imaging of cerebral vessels and therefore alterations due to intracranial pathology. Moniz introduced in the clinical practice this fundamental and important diagnostic tool. The present contribution wishes to pay a tribute to the Portuguese neurosurgeon, who was also a distinguished neurologist and statesman. Despite his tremendous contribution in modern brain imaging, Egas Moniz was awarded the Nobel Prize in Physiology or Medicine in 1949 for prefrontal leucotomy, the neurosurgical intervention nowadays unacceptable, but should rather be remembered for his key contribution to modern brain imaging.

  12. Egas Moniz: 90 Years (1927–2017) from Cerebral Angiography

    Science.gov (United States)

    Artico, Marco; Spoletini, Marialuisa; Fumagalli, Lorenzo; Biagioni, Francesca; Ryskalin, Larisa; Fornai, Francesco; Salvati, Maurizio; Frati, Alessandro; Pastore, Francesco Saverio; Taurone, Samanta

    2017-01-01

    In June 2017 we celebrate the 90th anniversary of the pioneer discovery of cerebral angiography, the seminal imaging technique used for visualizing cerebral blood vessels and vascular alterations as well as other intracranial disorders. Egas Moniz (1874–1955) was the first to describe the use of this revolutionary technique which, until 1975 (when computed tomography, CT, scan was introduced in the clinical practice), was the sole diagnostic tool to provide an imaging of cerebral vessels and therefore alterations due to intracranial pathology. Moniz introduced in the clinical practice this fundamental and important diagnostic tool. The present contribution wishes to pay a tribute to the Portuguese neurosurgeon, who was also a distinguished neurologist and statesman. Despite his tremendous contribution in modern brain imaging, Egas Moniz was awarded the Nobel Prize in Physiology or Medicine in 1949 for prefrontal leucotomy, the neurosurgical intervention nowadays unacceptable, but should rather be remembered for his key contribution to modern brain imaging. PMID:28974927

  13. Enfermedad periodontal inflamatoria asociada a un absceso pulmonar. Presentación de un caso

    OpenAIRE

    López Rodríguez, Vania Julexis; Garcías Rodríguez, Marisel; Gómez Martínez, Ana Iris; Díaz Gonzáles, Gabriela

    2015-01-01

    Fundamento: A pesar, de que hay reportes de casos en la literatura internacional, que asocian la enfermedad periodontal con enfermedades respiratorias y medidas para la prevención de la enfermedad periodontal inflamatoria, sino se establece un adecuado manejo de esta última, puede evolucionar con una complicación sistémica como es el absceso pulmonar. Objetivo: Ilustrar cómo la enfermedad periodontal inflamatoria puede asociarse a un absceso pulmonar como complicación sistémica en su evolució...

  14. El dolor en la enfermedad de Parkinson. Implicaciones autonómicas y afectivas

    OpenAIRE

    Camacho Conde, José

    2016-01-01

    Introducción y objetivo: La enfermedad de Parkinson (EP) es una enfermedad neurodegenerativa, la segunda con mayor prevalencia, después de la enfermedad de Alzheimer (EA). La enfermedad presenta tanto síntomas motores como “no motores”, entre los que se encuentra disfunción autonómica, dolor, deterioro cognitivo, ansiedad, depresión, entre otros. El dolor en la EP, a pesar de su frecuencia, sigue siendo un síntoma infravalorado, infradiagnosticado e infratratado. Nuestro objetivo principal es...

  15. Estado de las enfermedades raras que cursan con discapacidad intelectual en Colombia

    OpenAIRE

    Hurtado Sánchez, Johan Sebastián

    2016-01-01

    Las enfermedades raras o huérfano son una problemática que ha tomado mucha importancia en el contexto mundial del presente siglo, estas se han definido como crónicas, de difícil tratamiento de sus síntomas y con baja prevalencia en la población; muchas de estas enfermedades cursan con varios tipos de discapacidad, siendo el objetivo del presente trabajo el enfocarse en aquellas enfermedades raras que cursan con discapacidad intelectual. Para poder profundizar en estas enfermedades se realizó ...

  16. Vascular Care in Patients With Alzheimer Disease With Cerebrovascular Lesions Slows Progression of White Matter Lesions on MRI The Evaluation of Vascular Care in Alzheimer's Disease (EVA) Study

    NARCIS (Netherlands)

    Richard, Edo; Gouw, Alida A.; Scheltens, Philip; van Gool, Willem A.

    2010-01-01

    Background and Purpose-White matter lesions (WMLs) and cerebral infarcts are common findings in Alzheimer disease and may contribute to dementia severity. WMLs and lacunar infarcts may provide a potential target for intervention strategies. This study assessed whether multicomponent vascular care in

  17. Enfermedad periodontal en pacientes infectados por el VIH

    Directory of Open Access Journals (Sweden)

    Caridad Nazco Ríos

    2002-04-01

    Full Text Available Se realizó un estudio epidemiológico descriptivo transversal en 22 pacientes seropositivos al VIH ingresados en el Sanatorio Provincial de Villa Clara, con el propósito de determinar la prevalencia y gravedad de la enfermedad periodontal, su relación con las etapas clínicas de la infección por el VIH, la población linfocitaria, la higiene bucal y las infecciones agudas del grupo estudiado. El mayor número de pacientes pertenecían al grupo de edades de 20 a 29 años y el sexo masculino fue el más encontrado; la prevalencia de la enfermedad periodontal fue del 100 %, la destrucción avanzada la lesión más severa (13,6 % en pacientes del grupo II de la enfermedad por VIH, y la gingivitis con bolsa la más frecuente (86,45 %. La higiene bucal fue deficiente en todos los examinados. La estomatitis aftosa fue la infección aguda más frecuente. No se encontraron formas de enfermedad periodontal asociadas con el VIH. La cifra de inmunocompetentes alcanzó el 68,2 % y el 31,8 % presentó una inmunodepresión leve.An epidemiological descriptive cross-sectional study was carried out among 22 HIV seropositive patients admitted at the Provincial Sanatorium of Villa Clara aimed at determining the prevalence and severity of the periodontal disease, its relationship with the clinical stages of the HIV infection, the lymphocitary population, the oral hygiene and the acute infections of the studied group. Most of the patients were between 20 and 29 years old; whereas males were the most affected. There was a prevalence of the periodontal disease of 100 %. The advanced destruction was the most serious lesion (13.6 % in patients from the group II of the disease caused by HIV and the gingivitis with pocket was the most common (86.45 %. Oral hygiene was deficient in all individuals that were examined. The aphthous stomatitis was the most frequent acute infection. There were no forms of periodontal diseases associated with HIV. The figure of

  18. Dieta mediterránea y enfermedad cardiovascular

    OpenAIRE

    Carasa López, Irene

    2016-01-01

    La Enfermedad cardiovascular es uno de los grandes problemas sanitarios de la sociedad, puesto que es la principal causa de mortalidad en el mundo. De ahí la importancia de estudiar que la desencadena y, sobre todo, como prevenir su aparición. Numerosos estudios han demostrado que la Dieta Mediterránea tiene un efecto cardioprotector. Como alimentos propios de ella, aceite de oliva (ácido oleico), frutos secos, legumbres, cereales, pescado, vegetales, hortalizas, frutas y vino tinto, contr...

  19. Psiconeuroinmunoendocrinologia, emociones y enfermedad. Una revisión

    OpenAIRE

    De González Méndez, Tivizay Molina

    2010-01-01

    Aunque desde tiempos muy remotos se sospechaba la relación entre el sufrimiento físico o emocional y la aparición o exacerbación de enfermedades. No existía suficiente evidencia científica para poder afirmarla. En los últimos 25 años las investigaciones en este campo han confirmado, que la interacción entre el psiquismo, el sistema nervioso central y el organismo es mucho más compleja y dinámica de lo que se pensaba; y que los sistemas inmunes, endocrino y nervioso comparten un lengu...

  20. Estudio de las alteraciones del esmalte en la enfermedad celiaca

    OpenAIRE

    Bonet Coloma, Cristina

    2013-01-01

    La enfermedad celiaca (EC) es una enteropatía caracterizada por una intolerancia permanente al gluten, proteína existente en el trigo, centeno, cebada y avena que provoca una lesión severa de las vellosidades intestinales, y se normaliza tras su retirada de la dieta. La sintomatología varía de un paciente a otro dependiendo del daño de la mucosa intestinal. La presentación típica incluye diarrea, pérdida de peso, fatiga, distensión abdominal, vómitos, deficiencias nutricionales y anemia p...

  1. Estrategias integradas para el control de enfermedades de las plantas.

    Directory of Open Access Journals (Sweden)

    Achicanoy López Héctor

    2001-09-01

    Full Text Available En el manejo del patosistema de cultivos, se debe tener en cuenta el control del patógeno y el manejo del hospedante. La importancia económica de las enfermedades de las plantas, debe medirse no sólo por el verdadero daño que ocasionan, sino también por los costos en las medidas de prevención y control. Cuando se intenta planear y aplicar nuevos métodos de control de las enfermedades de las plantas, el objetivo debe ser un control racional, eficaz y seguro a un costo mínimo. En el control de las enfermedades de las plantas, las estrategias aplicadas se utilizan en términos generales, para proteger a las poblaciones más que a unas plantas individuales, aunque ciertos hospederos enfermos se controlan individualmente. Casi la totalidad de las estrategias de control, se utilizan antes de que las plantas enfermen, es decir, los métodos son preventivos y no curativos. El Manejo Integrado de Plagas (MIP, utiliza todas las técnicas y métodos más apropiados para mantener en lo posible, las poblaciones de plagas a niveles por debajo 1 M.Sc. Profesor Asociado. Universidad Nacional de Colombia-Sede Medellín, Departamento de Agronomía, Apartado 1027, Medellín-Colombia. de aquellos que ocasionan daño económico. Sin embargo, en el caso de las plantas, el MIP debe ser cuidadosamente revisado y permanentemente ajustado debido a la variabilidad de los fitopatógenos en la naturaleza, particularmente los hongos. El control de la enfermedad, se puede lograr mediante un sólo procedimiento, pero en la mayoría de los casos exige la utilización de medidas múltiples e implica un programa integrado de manipulación del ambiente y de las estrategias reglamentarias, culturales, biológicas, físicas y químicas.

  2. Resúmenes de los trabajos sobre las Enfermedades Neuromusculares

    OpenAIRE

    Congreso Nacional de Neurología

    2010-01-01

    Las enfermedades neuromusculares constituyen un conjunto de afectaciones que afectan las neuronas motoras periférica, las vías motoras eferentes o los efectores (músculos esqueléticos). Sus manifestaciones clínicas son muy variadas y dependen de la causa y de los niveles de afectación. En este acápite se pueden encontrar los resúmenes de trabajos relacionados con el síndrome de Guillain Barre, polineuropatía diabética, Atrofia Muscular Espinal, Distrofia miotónica y otros todos presentados en...

  3. Biomarcadores en enfermedades relacionadas con el sistema nervioso

    Directory of Open Access Journals (Sweden)

    Elso Manuel Cruz Cruz

    2014-12-01

    Full Text Available El estudio de biomarcadores, o marcadores biológicos para el diagnóstico y seguimiento al tratamiento de enfermedades, constituye referente frecuente en la literatura científica biomédica actual. Se realizó una revisión bibliográfica empleando los recursos disponibles en la red Infomed, específicamente Ebsco, The Cochrane Librery, PubMed, Hinari y SciELO, a través de los cuales se accedieron a las bases de datos: MEDLINE, Academic Search Premier, MedicLatina y Scopus. Se recopilaron varios artículos científicos, donde se hace referencia al empleo de biomarcadores en el diagnóstico de enfermedades relacionadas con el sistema nervioso. El factor de crecimiento endotelial, la inmunoglobulina G (IgG y el sistema arginina - óxido nítrico - citrulina, se refieren como indicadores prematuros de la hemorragia subaracnoidea. La disminución del amiloide beta y el aumento de las concentraciones de proteína tau en el líquido cefalorraquídeo, se cuentan entre los biomarcadores más prometedores e informativos que indiquen precozmente el Alzheimer y otras enfermedades neurodegenerativas. Estos mismos marcadores se comportan de manera contraria a nivel plasmático. La copeptina es un biomarcador fácilmente medible, que refleja la situación de estrés a la que está sometido el organismo y se propone su uso en el diagnóstico del síndrome de Burnout; además, niveles aumentados de α-amilasa y cromogranina A (CgA salivales pueden también ser utilizadas como indicadores de este síndrome. Se logró recoger en este artículo un compendio de ejemplos de marcadores biológicos, utilizados en el diagnóstico de enfermedades relacionadas de alguna forma con el sistema nervioso

  4. Efecto neuroprotector de los cannabinoides en las enfermedades neurodegenerativas

    Directory of Open Access Journals (Sweden)

    Carlos Suero-García

    2015-01-01

    Full Text Available Objetivos: Se analiza la situación actual de las investigaciones relacionadas con las sustancias cannabinoides, así como su interacción con el organismo, clasificación, efectos terapéuticos y su uso en las enfermedades neurodegenerativas. Métodos: Se realiza una exhaustiva revisión bibliográfica relacionada con las sustancias cannabinoides y sus derivados sintéticos, haciendo especial hincapié en la forma de interactuar con el organismo y los efectos que provocan dichas interacciones. Concretamente, se estudiarán sus efectos neuroantiinflamatorio y analgésico lo que conlleva al efecto neuroprotector en enfermedades neurodegenerativas tales como Alzheimer, Parkinson, Huntington, esclerosis múltiple y esclerosis lateral amiotrófica. Resultados: Desde hace miles de años la planta Cannabis Sativa ha sido utilizada por muchas culturas con distintos fines, de ocio, textiles, analgésicos, pero no es hasta finales del siglo XX cuando se empieza a incentivar los estudios científicos relacionados con ésta. La planta posee una mezcla de unos 400 componentes, de los cuales 60 pertenecen al grupo de los cannabinoides siendo los principales el cannabinol, cannabidiol y tetrahidrocannabinol. Con el descubrimiento de las sustancias cannabinoides, sus derivados, y los receptores que interactúan, se amplían las posibilidades terapéuticas teniendo un especial interés el efecto neuroprotector que estas sustancias contienen. Conclusiones. Se ha demostrado el gran potencial de los cannabinoides como sustancias terapéuticas más allá de su uso analgésico o antiemético, esto es, en enfermedades neurodegenerativas en las que pueden no solo disminuir los síntomas, sino frenar el proceso de la enfermedad. Otra posible aplicación puede ser en el campo oncológico, siendo particularmente intensa la actividad investigadora realizada en los últimos 15 años.

  5. Eriptosis, la muerte suicida de eritrocitos: mecanismo y enfermedades asociadas

    OpenAIRE

    Herlax, Vanesa; Vazquez, Romina; Mate, Sabina; Bakás, Laura

    2011-01-01

    La muerte suicida de eritrocitos o eriptosis, similar a la apoptosis de células nucleadas, está caracterizada por disminución del volumen celular, vesiculación de la membrana y traslocación de fosfolípidos de la membrana plasmática con exposición de fosfatidilserina en la superficie celular. Una amplia variedad de drogas, contaminantes ambientales, sustancias endógenas, condiciones clínicas y enfermedades disparan el proceso de eriptosis, entre los que se pueden enumerar cationes como Hg+2, C...

  6. Enfermedad pulmonar intersticial difusa en trabajadores de la limpieza

    OpenAIRE

    Bravo Graterol, Ricardo Alejandro

    2011-01-01

    En este trabajo se describen las características de 5 trabajadores de la limpieza que fueron diagnosticados de enfermedad pulmonar intersticial difusa no aguda de causa desconocida mediante biopsia pulmonar quirúrgica. La edad media fue de 64 años y 4 fueron mujeres. Las exposiciones más frecuentes fueron el salfumán y lejía, y ninguno de los pacientes utilizó protección adecuada. Las características más llamativas de estos pacientes se observaron en la TACAR y la histopatología que mostraron...

  7. Enfermedad cardiovascular en pacientes cubanos afectados por Ataxia de Friedreich.

    OpenAIRE

    Tania Cruz Mariño; Ana Luz Portelles Caminero; William Áreas Zalazar; Luís Velázquez Pérez

    2010-01-01

    Al describir la ataxia de Friedreich, Nicholaus hizo referencia a la patología cardiaca. Esta enfermedad autosómica recesiva se debe a una mutación dinámica en el gen FRDA, codificándose deficientemente la proteína Frataxina, conduciendo a estrés oxidativo y muerte celular cardiaca. La presente investigación se desarrolló con el objetivo de describir las anomalías cardiovasculares presentes en los pacientes cubanos afectados por ataxia de Friedreich. A los individuos con diagnóstico molecular...

  8. Relevancia del mosquito tigre (Aedes Albopictus) como vector de enfermedades.

    OpenAIRE

    Blasco Rivera, Cristina

    2017-01-01

    El mosquito tigre (Ae. Albopictus) es uno de los vectores de las enfermedades causadas por arbovirus, siendo actualmente, la especie vectorial más invasiva del mundo. Se introdujo en Europa en 1979 localizándose en España por primera vez en agosto de 2004 en San Cugat del Vallés en Barcelona, desde donde no ha dejado de extenderse. Es vector del virus del dengue, virus del chikungunya, virus Zika y virus de la fiebre amarilla. El objetivo principal de este Trabajo de Fin de Grado será realiza...

  9. Estigma, discriminación y concepto de enfermedad mental.

    OpenAIRE

    Stucchi-Portocarrero, Santiago

    2014-01-01

    El estigma y la discriminación contra los enfermos mentales han existido a lo largo de toda la historia, pese a los cambios conceptuales de la enfermedad mental, desde las explicaciones sobrenaturales hasta las de naturaleza científico-racional. Se presentan cinco episodios históricos representativos de abuso o persecución contra personas con trastornos mentales, cada uno respondiendo a modelos conceptuales diferentes: la caza de brujas, el encierro, la degeneración y la eugenesia, la lobotom...

  10. La enfermedad mental a lo largo de la historia

    OpenAIRE

    Álvarez Cernuda, Sandra

    2015-01-01

    La enfermedad mental hoy en día sigue siendo una patología desconocida, llegando incluso a no existir una definición clara para el “trastorno mental” como tal y precisando cada uno de ellos una definición distinta. Este gran desconocimiento hace que dichos pacientes sufran una gran estigmatización no sólo por gente de otros ámbitos sino en ocasiones por los mismos profesionales sanitarios. El objetivo de esta revisión es dar a conocer el concepto que tenían nuestros antepasados de la enferm...

  11. Caries temprana de infancia: ¿enfermedad infecciosa?

    OpenAIRE

    Sandra Rojas, F.; Sonia Echeverría, L.

    2014-01-01

    La caries dental es una de las enfermedades más comunes en la infancia y las personas continúan siendo susceptible a través de la vida. Aunque actualmente puede ser detenida y potencialmente revertida en etapas tempranas, no es autolimitada, progresa en forma crónica si no existe un cuidado y control de los factores que la producen, llegando a la destrucción de dientes, dolor, alteraciones funcionales, sistémicas y consecuencias en la calidad de vida de las personas. La caries temprana de inf...

  12. El timerosal y las enfermedades del neurodesarrollo infantil

    OpenAIRE

    Luis Maya; Flora Luna

    2006-01-01

    Se evalúa la relación causal entre el timerosal (etilmercurio), como preservante en las vacunas pediátricas, y el incremento de casos de enfermedades del neurodesarrollo infantil, como consecuencia de la ampliación de los esquemas de inmunización. Se revisó la información científica, relacionando el timerosal y las evidencias que permitan evaluar una posible asociación causal, con estudios epidemiológicos, ecológicos, biomoleculares y toxicológicos, de bioseguridad, toxicológicos fetales y so...

  13. Vascular Access in Children

    International Nuclear Information System (INIS)

    Krishnamurthy, Ganesh; Keller, Marc S.

    2011-01-01

    Establishment of stable vascular access is one of the essential and most challenging procedures in a pediatric hospital. Many clinical specialties provide vascular service in a pediatric hospital. At the top of the “expert procedural pyramid” is the pediatric interventional radiologist, who is best suited and trained to deliver this service. Growing awareness regarding the safety and high success rate of vascular access using image guidance has led to increased demand from clinicians to provide around-the-clock vascular access service by pediatric interventional radiologists. Hence, the success of a vascular access program, with the pediatric interventional radiologist as the key provider, is challenging, and a coordinated multidisciplinary team effort is essential for success. However, there are few dedicated pediatric interventional radiologists across the globe, and also only a couple of training programs exist for pediatric interventions. This article gives an overview of the technical aspects of pediatric vascular access and provides useful tips for obtaining vascular access in children safely and successfully using image guidance.

  14. Pediatric vascular access

    International Nuclear Information System (INIS)

    Donaldson, James S.

    2006-01-01

    Pediatric interventional radiologists are ideally suited to provide vascular access services to children because of inherent safety advantages and higher success from using image-guided techniques. The performance of vascular access procedures has become routine at many adult interventional radiology practices, but this service is not as widely developed at pediatric institutions. Although interventional radiologists at some children's hospitals offer full-service vascular access, there is little or none at others. Developing and maintaining a pediatric vascular access service is a challenge. Interventionalists skilled in performing such procedures are limited at pediatric institutions, and institutional support from clerical staff, nursing staff, and technologists might not be sufficiently available to fulfill the needs of such a service. There must also be a strong commitment by all members of the team to support such a demanding service. There is a slippery slope of expected services that becomes steeper and steeper as the vascular access service grows. This review is intended primarily as general education for pediatric radiologists learning vascular access techniques. Additionally, the pediatric or adult interventional radiologist seeking to expand services might find helpful tips. The article also provides education for the diagnostic radiologist who routinely interprets radiographs containing vascular access devices. (orig.)

  15. 社区老年人心脑血管疾病共病抑郁障碍流行病学特征及其影响因素分析%Epidemiology characteristics and its influence factor analysis in community elderly patients with cardiac cerebral and vascular diseases comorbid depressive disorder

    Institute of Scientific and Technical Information of China (English)

    金莹; 秦虹云; 瞿正万

    2012-01-01

    Objective To invesligale the slalus of comorbid depressive disorders and its risk factor in communily elderly palienls with Cardiac Cerebral And Vascular Diseases ( CCVD) , to provide important basis for disease prevention and control in communily. Methods 3311 registered permanent old man were surveyed in random pudong new area 15 street town, 574 old men with obvious CCVD were used for depressive disorder comorbidity survey ( disease) , and 574 old men had no obvious physical and mental illness as a control (the healthy group). Survey tools including wrote "general condition investigation questionnaire" and "the diagnostic and statistical manual of mental disorders ( DSM-IV) axis I obstacles clinical examination by patients version( SCID-I/P) ". Multi factors togistic regression analysis were used. Results 164 cases in disease group comorbid depressive disorder (28. 6% ), higher than the health group( 17. 1% ) ( x2= 21. 54, P < 0. 01); togistic regression analysis found that older age,women,family economic difficulties,family relationship bad were the independently associated risk factors of depressive disorders. Conclusions The elderly CCVD patients have a higher rates of comorbidity depression than the healthy elderly population, take effective intervention methods can reduce the prevalence and help to improve the quality of life in the old men.%目的 调查社区老年人心脑血管疾病患者共病抑郁障碍的现况及易感因素,为社区疾病防治提供重要依据.方法 随机抽取浦东新区15个街镇在册常住老年人共调查3311名,将患有明显心脑血管疾病的574名老年人进行抑郁障碍共病调查(疾病组),574名无明显躯体和精神疾病者作对照(健康组).调查工具包括自编"一般状况调查问卷"及"美国精神障碍诊断与统计手册第4版(DSM-Ⅳ)轴Ⅰ障碍定式临床检查患者版(SCID-I/P)",进行多因素Logistic回归分析.结果 疾病组中164例共病抑郁障碍(28.6%),

  16. Vivenciando a sobrecarga ao vir-a-ser um cuidador familiar de pessoa com acidente vascular cerebral (AVC: análise do conhecimento Viviendo la sobrecarga al convertirse en cuidador familiar de personas con accidente cerebrovascular: análisis del conocimiento Living the burden in becoming a family caregiver for a cerebrovascular accident survivor: knowledge analysis

    Directory of Open Access Journals (Sweden)

    Silvia Cristina Mangini Bocchi

    2004-02-01

    Full Text Available Trata-se de trabalho do tipo bibliográfico com a finalidade de fazer uma análise temática da produção do conhecimento em periódicos, acerca da sobrecarga em cuidadores familiares de pessoas com Acidente Vascular Cerebral (AVC. O corpus de análise reuniu artigos localizados nas décadas de 80 e 90, a partir das bases de dados Medline, Lilacs e Cinahl. A análise de conteúdo foi o referencial metodológico que permitiu organizar todo o conhecimento, em um corpo de categorias e subcategorias, denominadas: Categoria 1 - As seqüelas do AVC gerando sobrecarga; Categoria 2 - Aspectos gerando sobrecarga, congregando as subcategorias: o isolamento social, as mudanças e as insatisfações conjugais, as dificuldades financeiras e os déficits na saúde física e no autocuidado do cuidador; Categoria 3 - Outras análises relacionadas à sobrecarga em cuidadores familiares.Se trata de un trabajo del tipo bibliográfico con la finalidad de hacer un análisis temático de producción del conocimiento en revistas, sobre la carga de cuidadores familiares de personas con Accidente Cerebrovascular (ACV. El corpus de análisis reunió artículos realizados en las décadas de 80 y 90 a partir de las bases de datos Medline, Lilacs y Cinahl. El análisis de contenido fue el referencial metodológico que permitió organizar todo el conocimiento en un cuerpo de categorías y subcategorías denominadas: categoría 1 - Las secuelas del ACV generando carga, Categoría 2 - Aspectos generadores de la carga que congregan las subcategorías: el aislamiento social, los cambios y las insatisfacciones conyugales, las dificultades financieras y los déficit en la salud física y en el cuidado consigo mismo, Categoría 3 - Otros análisis sobre la carga de cuidadores familiares de personas con ACV.This bibliographical research aims to carry out a thematic analysis of knowledge production in periodicals, about the burden placed on family caregivers of Cerebrovascular

  17. Microcephalic osteodysplastic primordial dwarfism type II (MOPD II) with multiple vascular complications misdiagnosed as Dubowitz syndrome

    OpenAIRE

    Dieks, Jana-Katharina; Baumer, Alessandra; Wilichowski, Ekkehard; Rauch, Anita; Sigler, Matthias

    2014-01-01

    To date, the genetic basis of Dubowitz syndrome (short stature, microcephaly, facial abnormalities, eczema) is unknown and vascular complications are not known to be associated with this syndrome. In microcephalic osteodysplastic primordial dwarfism type II (MOPD II; disproportionate short statue, microcephaly, facial abnormalities), however, cerebral aneurysms and other vascular abnormalities are frequent complications. MOPD II is a genetic disorder caused by mutations in the pericentrin (PC...

  18. 13-Methyltetradecanoic acid mitigates cerebral ischemia/reperfusion injury

    Directory of Open Access Journals (Sweden)

    Juan Yu

    2016-01-01

    Full Text Available 13-Methyltetradecanoic acid can stabilize cell membrane and have anti-inflammatory, antioxidant and anti-apoptotic effects. Previous studies mainly focused on peripheral nerve injury, but seldom on the central nervous system. We investigated whether these properties of 13-methyltetradecanoic acid have a neuroprotective effect on focal cerebral ischemia/reperfusion injury, and detected the expression of basic fibroblast growth factor and vascular endothelial growth factor. This study established rat models of middle cerebral artery occlusion/reperfusion injury by ischemia for 2 hours and reperfusion for 24 hours. At the beginning of reperfusion, 13-methyltetradecanoic acid 10, 40 or 80 mg/kg was injected into the tail vein. Results found that various doses of 13-methyltetradecanoic acid effectively reduced infarct volume, mitigate cerebral edema, and increased the mRNA and protein expression of basic fibroblast growth factor and vascular endothelial growth factor at 24 hours of reperfusion. The effect was most significant in the 13-methyltetradecanoic acid 40 and 80 mg/kg groups. The findings suggest that 13-methyltetradecanoic acid can relieve focal ischemia/reperfusion injury immediately after reperfusion, stimulate the upregulation of basic fibroblast growth factor and vascular endothelial growth factor to exert neuroprotective effects.

  19. An investigation of cerebral magnetic resonance angiography, 4

    International Nuclear Information System (INIS)

    Takeda, Sadanori; Sadamoto, Kazuhiko; Ohue, Shiro; Todo, Hirooki; Sakaki, Saburo.

    1991-01-01

    We have been studying MR angiography using the 0.5 tesla system. Recently we developed three-dimensional MR angiography on the 0.5 tesla system using the gradient-echo technique. The purpose of this study is to evaluate the clinical ability of this newly developed 3-D MR angiography to detect intracranial vascular diseases in comparison with SE or 2-D MR angiography. Twenty-eight patients (15 cerebral aneurysms, 8 arteriovenous malformations, and 5 others) were examined. Three-dimensional MR angiography was performed with TRs of from 60 to 90 msec, TEs of from 16 to 22 msec, flip angls of from 15 to 45 degrees, and a 256x256x16 or 32 matrix. The imaging volumes ranged in thickness from 48 to 64 mm. In our study, a subtraction technique composed of rephased and dephased sequences was applied. As the result of utilizing 0.5 tesla 3-D MR angiography with optimal parameters, good visualization of main cerebral arteries such as second-order branches was obtained. Cerebral aneurysms, AVMs, and arterial occlusions were also well demonstrated, but some of the giant aneurysms were displayed insufficiently for the various flows to be determined. We concluded that 3-D MR angiography on the 0.5 tesla system has the ability to detect intracranial vascular lesions and should be the method for the screening and follow-up of intracranial vascular diseases. (author)

  20. Arterial vascularization of the pineal gland.

    Science.gov (United States)

    Kahilogullari, Gokmen; Ugur, Hasan Caglar; Comert, Ayhan; Brohi, Recep Ali; Ozgural, Onur; Ozdemir, Mevci; Karahan, Suleyman Tuna

    2013-10-01

    The arterial vascularization of the pineal gland (PG) remains a debatable subject. This study aims to provide detailed information about the arterial vascularization of the PG. Thirty adult human brains were obtained from routine autopsies. Cerebral arteries were separately cannulated and injected with colored latex. The dissections were carried out using a surgical microscope. The diameters of the branches supplying the PG at their origin and vascularization areas of the branches of the arteries were investigated. The main artery of the PG was the lateral pineal artery, and it originated from the posterior circulation. The other arteries included the medial pineal artery from the posterior circulation and the rostral pineal artery mainly from the anterior circulation. Posteromedial choroidal artery was an important artery that branched to the PG. The arterial supply to the PG was studied comprehensively considering the debate and inadequacy of previously published studies on this issue available in the literature. This anatomical knowledge may be helpful for surgical treatment of pathologies of the PG, especially in children who develop more pathology in this region than adults.