miércoles, 27 de noviembre de 2013
domingo, 10 de noviembre de 2013
Bancos de datos
Artículo: Selective functional exhaustion of hematopoietic progenitor cells in the bone marrow of patients with postinfarction heart failure.
Aquí: Artículo completo
Artículo: Reporte de caso clínico: remodelado ventricular después de infarto agudo de miocardio
Aquí: Artículo completo
Artículo: Organización de los servicios clínicos para la insuficiencia cardíaca
Aquí: Artículo completo
Bancos de imágenes
HON Media
Patología: Isquemia encefálica
Medical Image Databases on the Internet
Patología: Mononucleosis infecciosa
Patología: Isquemia encefálica
Patología: Mononucleosis infecciosa
Buscadores de imágenes radiológicas
Yottalook
Patología: Osteonecrosis
Osteonecrosis nos habla de la muerte del hueso . Sinónimos incluyen necrosis aséptica , necrosis ósea , necrosis avascular , infarto óseo y necrosis isquémica .La osteonecrosis es de etiología multifactorial , y tiene un pronóstico muy diferentes , dependiendo de la parte exacta del hueso afectado por la necrosis . El mecanismo exacto de la osteonecrosis depende principalmente de la causa predisponente. Parece lógico que la secuencia de los acontecimientos en el desarrollo de osteonecrosis debe ser como sigue :
1. Un fenómeno que produce una disminución del flujo sanguíneo a los huesos.
2. Isquemia ósea , si el flujo se vuelve lo suficientemente bajo.
3. Infarto óseo , si el flujo se vuelve aún más bajo.
Radiopaedia
Patología: Mesotelioma primario peritoneal
El mesotelioma peritoneal es un tumor primario poco común del revestimiento peritoneal.Típicamente los pacientes presentan pérdida de peso , dolor abdominal y / o distensión abdominal.
Las características incluyen:presencia de placas pleurales calcificadas , indicativo de la exposición al amianto; en contraste , la calcificación tumoral peritoneal es poco frecuente; engrosamiento nodular, irregular peritoneal y el omento , progresando al apelmazamiento omental; masas peritoneales o omental; ascitis variables ( de leve a moderada ); invasión directa de las vísceras abdominales, especialmente el hígado y el colon; afectación pleural concomitante no es raro que en la TC en el diagnóstico 7
El mesotelioma peritoneal no tiende a extenderse a órganos distantes y adenopatías no suele ser una característica.
Radswiki
Patología: Pancreatitis aguda
La inflamación aguda del páncreas , causando dolor abdominal repentino y grave se llama como la pancreatitis aguda . El páncreas es un órgano que se encuentra en la parte de atrás de la mitad del abdomen detrás del estómago. Produce jugos digestivos y ciertas hormonas, como la insulina y el glucagón . La mayoría de las veces , las enzimas son sólo activa después de que lleguen al intestino delgado , donde se necesitan para digerir los alimentos .
Pancreatitis generalmente se desarrolla como resultado de cálculos biliares o moderados con el consumo excesivo de alcohol durante un período de años .
La mayoría de los ataques de pancreatitis aguda no conducen a complicaciones y la mayoría de los pacientes se recuperan sin problemas con la atención médica . Un pequeño porcentaje de personas que tienen una enfermedad más grave que requiere atención médica intensiva .
Searching radiology
Patología: Carcinoma broncogénico
A nivel mundial, el carcinoma broncogénico es la causa más común de muerte por cáncer tanto en hombres como en mujeres. En los EE.UU., aproximadamente un tercio de las muertes por cáncer se producen como consecuencia de cáncer de pulmón, y aproximadamente 170.000 nuevos casos de cáncer de pulmón se producen anualmente. Aproximadamente el 20% de los tumores malignos del pulmón se deben al carcinoma de células pequeñas. En la imagen, el cáncer de pulmón de células pequeñas es casi siempre metastásica a los ganglios linfáticos mediastínicos o alejadas, por lo tanto, el tratamiento es la quimioterapia de combinación. Cáncer de células no pequeñas requiere una meticulosa puesta en escena, ya que el tratamiento y el pronóstico varían ampliamente dependiendo de la etapa. En el cáncer de pulmón de células no pequeñas, la resección quirúrgica ofrece a los pacientes la mejor oportunidad de sobrevivir. La cirugía puede ser curativa para el estadio I y estadio II, sin embargo, sólo una minoría de pacientes (20-25%) tienen la enfermedad en estas etapas. Los pacientes con enfermedad en estadio IIIA pueden ser candidatos para la resección quirúrgica. En los pacientes con enfermedad en estadio IIIB, el tumor generalmente se consideran no resecables. Los pacientes con enfermedad en estadio IV tienen metástasis a distancia y se ofrecen tratamiento no quirúrgico, con la excepción de casos raros de metástasis resecable en un paciente que también tiene una lesión primaria resecable.
Radiology Search
Patología: Hidrocefalia obstructiva
La hidrocefalia no comunicante - llamada también hidrocefalia "obstructiva" - ocurre cuando el flujo del líquido cerebroespinal se ve bloqueado a lo largo de una o más de las vías estrechas que conectan los ventrículos. Una de las causas más comunes de hidrocefalia es la "estenosis acuaductal". En este caso, la hidrocefalia resulta de una estrechez del acueducto de Silvio, un pequeño conducto entre el tercero y cuarto ventrículo en la mitad del cerebro.
Patología: Osteonecrosis
Osteonecrosis nos habla de la muerte del hueso . Sinónimos incluyen necrosis aséptica , necrosis ósea , necrosis avascular , infarto óseo y necrosis isquémica .La osteonecrosis es de etiología multifactorial , y tiene un pronóstico muy diferentes , dependiendo de la parte exacta del hueso afectado por la necrosis . El mecanismo exacto de la osteonecrosis depende principalmente de la causa predisponente. Parece lógico que la secuencia de los acontecimientos en el desarrollo de osteonecrosis debe ser como sigue :
1. Un fenómeno que produce una disminución del flujo sanguíneo a los huesos.
2. Isquemia ósea , si el flujo se vuelve lo suficientemente bajo.
3. Infarto óseo , si el flujo se vuelve aún más bajo.
Radiopaedia
Patología: Mesotelioma primario peritoneal
El mesotelioma peritoneal es un tumor primario poco común del revestimiento peritoneal.Típicamente los pacientes presentan pérdida de peso , dolor abdominal y / o distensión abdominal.
Las características incluyen:presencia de placas pleurales calcificadas , indicativo de la exposición al amianto; en contraste , la calcificación tumoral peritoneal es poco frecuente; engrosamiento nodular, irregular peritoneal y el omento , progresando al apelmazamiento omental; masas peritoneales o omental; ascitis variables ( de leve a moderada ); invasión directa de las vísceras abdominales, especialmente el hígado y el colon; afectación pleural concomitante no es raro que en la TC en el diagnóstico 7
El mesotelioma peritoneal no tiende a extenderse a órganos distantes y adenopatías no suele ser una característica.
Radswiki
Patología: Pancreatitis aguda
La inflamación aguda del páncreas , causando dolor abdominal repentino y grave se llama como la pancreatitis aguda . El páncreas es un órgano que se encuentra en la parte de atrás de la mitad del abdomen detrás del estómago. Produce jugos digestivos y ciertas hormonas, como la insulina y el glucagón . La mayoría de las veces , las enzimas son sólo activa después de que lleguen al intestino delgado , donde se necesitan para digerir los alimentos .
Pancreatitis generalmente se desarrolla como resultado de cálculos biliares o moderados con el consumo excesivo de alcohol durante un período de años .
La mayoría de los ataques de pancreatitis aguda no conducen a complicaciones y la mayoría de los pacientes se recuperan sin problemas con la atención médica . Un pequeño porcentaje de personas que tienen una enfermedad más grave que requiere atención médica intensiva .
Searching radiology
Patología: Carcinoma broncogénico
A nivel mundial, el carcinoma broncogénico es la causa más común de muerte por cáncer tanto en hombres como en mujeres. En los EE.UU., aproximadamente un tercio de las muertes por cáncer se producen como consecuencia de cáncer de pulmón, y aproximadamente 170.000 nuevos casos de cáncer de pulmón se producen anualmente. Aproximadamente el 20% de los tumores malignos del pulmón se deben al carcinoma de células pequeñas. En la imagen, el cáncer de pulmón de células pequeñas es casi siempre metastásica a los ganglios linfáticos mediastínicos o alejadas, por lo tanto, el tratamiento es la quimioterapia de combinación. Cáncer de células no pequeñas requiere una meticulosa puesta en escena, ya que el tratamiento y el pronóstico varían ampliamente dependiendo de la etapa. En el cáncer de pulmón de células no pequeñas, la resección quirúrgica ofrece a los pacientes la mejor oportunidad de sobrevivir. La cirugía puede ser curativa para el estadio I y estadio II, sin embargo, sólo una minoría de pacientes (20-25%) tienen la enfermedad en estas etapas. Los pacientes con enfermedad en estadio IIIA pueden ser candidatos para la resección quirúrgica. En los pacientes con enfermedad en estadio IIIB, el tumor generalmente se consideran no resecables. Los pacientes con enfermedad en estadio IV tienen metástasis a distancia y se ofrecen tratamiento no quirúrgico, con la excepción de casos raros de metástasis resecable en un paciente que también tiene una lesión primaria resecable.
Radiology Search
Patología: Hidrocefalia obstructiva
Otros buscadores de artículos médicos
Yale Image Finder
Artículo: Resistance exercise combined with vascular restriction improves endothelial function and insulin resistance in patients with type 2 diabetes mellitus
Abstract (Resumen):
This study examined the effect of resistance exercise, combined with vascular restriction, on endothelial function and insulin resistance in patients with type 2 diabetes mellitus. Twenty-two subjects with type 2 diabetes mellitus were randomly divided into three groups, resistance exercise group (EG, n=7), resistance exercise combined with vascular restriction group (EVG, n=8), and control group (CG, n=7). The resistance exercise was performed three times a week over 16 week period at an intensity of approximately 20% of 1RM for major muscle groups in EG and EVG. And the EVG based on the externally applied vascular restriction pressure of 100 mmHg at the bilateral femoral artery and subclavian artery in exercising. A significant decrease in HOMA-IR and plasma ET-1 levels was founded after exercise in EVG (P<0.01), and there was also a increase in plasma NO levels following exercise was noted in EVG (P < 0.01). In conclusion, resistance exercise with vascular restriction is useful to improve endothelial function and insulin resistance in patients with type 2 diabetes mellitus.
Pubget
Artículo: Hypothyroidism--clinical findings, diagnosis, therapy. Thyroid tests should be performed on broad indications
Abstract (Resumen):
Hypothyroidism is a clinical entity resulting from deficiency of thyroid hormones or, more rarely, from their impaired activity at tissue level. It is a common condition, with a prevalence of 1.9 per cent in women, and the prevalence increases with age. Hypothyroidism may be congenital or acquired, primary or secondary, chronic or transient. Primary hypothyroidism is caused by disease or treatment which destroys the thyroid gland or interferes with thyroid hormone biosynthesis. Autoimmune thyroiditis is the predominant cause of primary hypothyroidism in countries such as Sweden where severe iodine deficiency is non-existent. Another cause of primary hypothyroidism, chronic or transient, is previous radio-iodine or surgical treatment of hypothyroidism. In secondary or central hypothyroidism, which is very rare, there is a lack of thyroid-stimulating hormone (TSH) or TSH activity, due to a pituitary or hypothalamic cause. The clinical features of hypothyroidism are dependent on the patient's age, the presence of other disease, and the rate at which hypothyroidism develops. As thyroid hormones are universal determinants of organ function, there may be a multiplicity of symptoms. Particularly in the elderly, the clinical features may be atypical, and the diagnosis easily missed. First line tests for hypothyroidism are analyses of the concentrations of free thyroxine (T4) and TSH in serum. In primary hypothyroidism, the serum content of T4 is low and that of TSH high. In central hypothyroidism, the serum content of T4 is low and that of TSH generally low or normal, though slightly increased levels of biologically inactive TSH may also occur. Subclinical hypothyroidism is characterised by a normal serum level of T4, an increased level of TSH, and the absence of clinical symptoms. When a diagnosis of chronic hypothyroidism is confirmed, treatment with laevothyroxine is started, the initial dose being adjusted to the age and general condition of the patient, and the duration and severity of hypothyroidism. As a rule, full thyroxine replacement therapy should bring the serum TSH level into the normal range. In central hypothyroidism, laevothyroxine treatment is similar, but pituitary function must be evaluated and, if necessary, corticosteroid replacement be instituted before laevothyroxine treatment is started.
Pubgle
Artículo: ESMO Guidelines consensus conference on malignant lymphoma 2011 part 1: diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL) and chronic lymphocytic leukemia (CLL)
Abstract (Resumen):
To complete the existing treatment guidelines for all tumor types, ESMO organizes consensus conferences to better clarify open issues in each disease. In this setting, a consensus conference on the management of lymphoma was held on 18 June 2011 in Lugano, immediately after the end of the 11th International Conference on Malignant Lymphoma.
The consensus conference convened ∼45 experts from all around Europe and selected six lymphoma entities to be addressed; for each of them three to five open questions were to be discussed by the experts. For each question, a recommendation should be given by the panel, supported by the strength of the recommendation based on the level of evidence.
This consensus report focuses on the three most common lymphoproliferative malignancies: diffuse large B-cell lymphoma, follicular lymphoma and chronic lymphocytic leukemia. A second report will concentrate on mantle cell lymphoma, marginal zone lymphoma and T-cell lymphomas.
JURN
Artículo: Consequences of chronic renal insufficiency on the exercise capacity, nutritional status, pulmonary function and respiratory musculature of children and adolescents
Abstract (Resumen):
OBJECTIVE: To evaluate functional capacity, pulmonary function, respiratory musculature and nutritional status among children and adolescents with chronic renal insufficiency (CRI) undergoing conservative treatment.
METHODS: This study was conducted with 30 volunteers, divided into two groups: a group of children and adolescents with CRI undergoing conservative therapy (CRI Group) and a group without renal disease (Control Group). The volunteers underwent physical therapy evaluation, spirometry, strength and resistance tests on their respiratory musculature, nutritional status evaluation and functional capacity assessment. The data were analyzed using the Mann-Whitney test with a significance level of 5%.
RESULTS: The Tiffeneau index was significantly lower in the CRI Group (p= 0.003). In relation to respiratory muscle function, the maximum expiratory pressure values were lower (p= 0.010) and the time values of the resistance test were greater (p= 0.003). In the functional assessment, the variables that differed statistically were: lower distance walked (p< 0.001), greater mean arterial pressure (p< 0.001), final respiratory rate (p< 0.001) and Borg scale (p= 0.048). Regarding nutritional status, all the statistically significant variables were lower.
CONCLUSIONS: Children and adolescents with CRI undergoing conservative treatment may present significantly impaired functional capacity, respiratory musculature and nutritional status.
JANE
Artículo: The temporomandibular joint in juvenile idiopathic arthritis: frequently used and frequently arthritic.
Abstract (Resumen):
Recent recognition of the markedly high prevalence of temporomandibular joint (TMJ) arthritis in children with juvenile idiopathic arthritis (JIA) coupled with the significant morbidity associated with TMJ damage has prompted increased interest in both the clinical and pathological aspects of TMJ arthritis. This review focuses on the prevalence of TMJ arthritis in JIA, the imaging modalities used to detect TMJ arthritis, and the treatment of TMJ arthritis in children with JIA.
Artículo: Resistance exercise combined with vascular restriction improves endothelial function and insulin resistance in patients with type 2 diabetes mellitus
Abstract (Resumen):
This study examined the effect of resistance exercise, combined with vascular restriction, on endothelial function and insulin resistance in patients with type 2 diabetes mellitus. Twenty-two subjects with type 2 diabetes mellitus were randomly divided into three groups, resistance exercise group (EG, n=7), resistance exercise combined with vascular restriction group (EVG, n=8), and control group (CG, n=7). The resistance exercise was performed three times a week over 16 week period at an intensity of approximately 20% of 1RM for major muscle groups in EG and EVG. And the EVG based on the externally applied vascular restriction pressure of 100 mmHg at the bilateral femoral artery and subclavian artery in exercising. A significant decrease in HOMA-IR and plasma ET-1 levels was founded after exercise in EVG (P<0.01), and there was also a increase in plasma NO levels following exercise was noted in EVG (P < 0.01). In conclusion, resistance exercise with vascular restriction is useful to improve endothelial function and insulin resistance in patients with type 2 diabetes mellitus.
Pubget
Artículo: Hypothyroidism--clinical findings, diagnosis, therapy. Thyroid tests should be performed on broad indications
Abstract (Resumen):
Hypothyroidism is a clinical entity resulting from deficiency of thyroid hormones or, more rarely, from their impaired activity at tissue level. It is a common condition, with a prevalence of 1.9 per cent in women, and the prevalence increases with age. Hypothyroidism may be congenital or acquired, primary or secondary, chronic or transient. Primary hypothyroidism is caused by disease or treatment which destroys the thyroid gland or interferes with thyroid hormone biosynthesis. Autoimmune thyroiditis is the predominant cause of primary hypothyroidism in countries such as Sweden where severe iodine deficiency is non-existent. Another cause of primary hypothyroidism, chronic or transient, is previous radio-iodine or surgical treatment of hypothyroidism. In secondary or central hypothyroidism, which is very rare, there is a lack of thyroid-stimulating hormone (TSH) or TSH activity, due to a pituitary or hypothalamic cause. The clinical features of hypothyroidism are dependent on the patient's age, the presence of other disease, and the rate at which hypothyroidism develops. As thyroid hormones are universal determinants of organ function, there may be a multiplicity of symptoms. Particularly in the elderly, the clinical features may be atypical, and the diagnosis easily missed. First line tests for hypothyroidism are analyses of the concentrations of free thyroxine (T4) and TSH in serum. In primary hypothyroidism, the serum content of T4 is low and that of TSH high. In central hypothyroidism, the serum content of T4 is low and that of TSH generally low or normal, though slightly increased levels of biologically inactive TSH may also occur. Subclinical hypothyroidism is characterised by a normal serum level of T4, an increased level of TSH, and the absence of clinical symptoms. When a diagnosis of chronic hypothyroidism is confirmed, treatment with laevothyroxine is started, the initial dose being adjusted to the age and general condition of the patient, and the duration and severity of hypothyroidism. As a rule, full thyroxine replacement therapy should bring the serum TSH level into the normal range. In central hypothyroidism, laevothyroxine treatment is similar, but pituitary function must be evaluated and, if necessary, corticosteroid replacement be instituted before laevothyroxine treatment is started.
Pubgle
Artículo: ESMO Guidelines consensus conference on malignant lymphoma 2011 part 1: diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL) and chronic lymphocytic leukemia (CLL)
Abstract (Resumen):
To complete the existing treatment guidelines for all tumor types, ESMO organizes consensus conferences to better clarify open issues in each disease. In this setting, a consensus conference on the management of lymphoma was held on 18 June 2011 in Lugano, immediately after the end of the 11th International Conference on Malignant Lymphoma.
The consensus conference convened ∼45 experts from all around Europe and selected six lymphoma entities to be addressed; for each of them three to five open questions were to be discussed by the experts. For each question, a recommendation should be given by the panel, supported by the strength of the recommendation based on the level of evidence.
This consensus report focuses on the three most common lymphoproliferative malignancies: diffuse large B-cell lymphoma, follicular lymphoma and chronic lymphocytic leukemia. A second report will concentrate on mantle cell lymphoma, marginal zone lymphoma and T-cell lymphomas.
JURN
Artículo: Consequences of chronic renal insufficiency on the exercise capacity, nutritional status, pulmonary function and respiratory musculature of children and adolescents
Abstract (Resumen):
OBJECTIVE: To evaluate functional capacity, pulmonary function, respiratory musculature and nutritional status among children and adolescents with chronic renal insufficiency (CRI) undergoing conservative treatment.
METHODS: This study was conducted with 30 volunteers, divided into two groups: a group of children and adolescents with CRI undergoing conservative therapy (CRI Group) and a group without renal disease (Control Group). The volunteers underwent physical therapy evaluation, spirometry, strength and resistance tests on their respiratory musculature, nutritional status evaluation and functional capacity assessment. The data were analyzed using the Mann-Whitney test with a significance level of 5%.
RESULTS: The Tiffeneau index was significantly lower in the CRI Group (p= 0.003). In relation to respiratory muscle function, the maximum expiratory pressure values were lower (p= 0.010) and the time values of the resistance test were greater (p= 0.003). In the functional assessment, the variables that differed statistically were: lower distance walked (p< 0.001), greater mean arterial pressure (p< 0.001), final respiratory rate (p< 0.001) and Borg scale (p= 0.048). Regarding nutritional status, all the statistically significant variables were lower.
CONCLUSIONS: Children and adolescents with CRI undergoing conservative treatment may present significantly impaired functional capacity, respiratory musculature and nutritional status.
JANE
Artículo: The temporomandibular joint in juvenile idiopathic arthritis: frequently used and frequently arthritic.
Abstract (Resumen):
Recent recognition of the markedly high prevalence of temporomandibular joint (TMJ) arthritis in children with juvenile idiopathic arthritis (JIA) coupled with the significant morbidity associated with TMJ damage has prompted increased interest in both the clinical and pathological aspects of TMJ arthritis. This review focuses on the prevalence of TMJ arthritis in JIA, the imaging modalities used to detect TMJ arthritis, and the treatment of TMJ arthritis in children with JIA.
PubMed - NCBI
En este enlace PubMed - NCBI pueden observar las diversas búsquedas que se pueden realizar en este buscador médico de acuerdo a los ejercicios encargados por nuestros profesores en el curso de Informática Médica II. Actividades 1- 4.
sábado, 2 de noviembre de 2013
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