Effect of α-tocopherol megadoses on hematologic parameters and antioxidant capacity of rats in an ultraendurance probe.

This study was aimed to analyze the effect of two different megadoses of α-tocopherol (vit E) in the antioxidant activity and red and white blood series of Wistar rats after a 180-min ultraendurance probe. Three groups of 10 rats were analyzed; VEAG: acute administration of a megadoses of 5,000 IU/kg of vit E the day before the probe; VECG: chronic administration of 1,000 IU/kg/day of vit E for 6 days before the probe; CG: placebo administration. VEAG presented white cells, red blood cells, hematocrit, hemoglobin values significantly higher than CG and VECG (p < 0.05). The mean corpuscular hemoglobin and lymphocytes concentrations were significantly higher in the VECG than in the other two groups (p < 0.05). Similarly, VEAG presented a significantly higher vit E blood concentration than VECG and CG (p < 0.05), and VECG than CG (p < 0.05). Finally, we found a significantly positive correlation between trolox equivalent antioxidant capacity (TEAC) and red blood cells concentration (r = 0.374) and a significantly inverse correlation between TEAC and blood lactate concentration (r = -0.365). Our findings suggest that acute vit E megadoses could protect against transitory sport anemia symptoms and increase the white blood cell count in comparison with the chronic dose and control groups after an ultraendurance probe.

Descripción de los aspectos generales del manejo del síndrome coronario agudo en España durante el año 2002 / Description of general aspects of the management of acute coronary syndrome in Spain during the year 2002

Objetivo. Describir los aspectos más relevantes en el manejo inicial del paciente con síndrome coronario agudo (SCA) durante el año 2002. Diseño y ámbito. Estudio observacional prospectivo. Participaron 84 hospitales. Pacientes, variables y resultados. Se han seleccionado los 12.743 casos incluidos en el registro ARIAM desde el 1 de enero al 31 de diciembre de 2002. Las variables analizadas se agrupan en 4 apartados: características generales, diagnóstico de infarto agudo de miocardio (IAM), atención prehospitalaria y tratamiento fibrinolítico. Ingresaron 6.879 pacientes con diagnóstico de IAM, incrementándose este diagnóstico en un 16,8% al alta. La mortalidad en Unidad de Cuidados Intensivos (UCI) para los pacientes con IAM ha sido del 8,4%. Cinco mil trescientos sesenta y ocho (47%) casos llegaron al hospital a través del sistema sanitario prehospitalario con una mediana de retraso desde el inicio de los síntomas de 155 minutos. El 59% de los IAM ST elevado recibieron tratamiento fibrinolítico. El 6,7% de las fibrinolisis se realizaron en la primera hora y el 31,1% en las dos primeras horas. De los pacientes con menos de tres criterios de reperfusión sólo se realizó angioplastia de rescate en 144 casos (7%). Conclusiones. El descenso de mortalidad del IAM respecto a años previos puede estar en relación con la aplicación de los nuevos criterios diagnósticos. La atención prehospitalaria comporta mayor retraso a su llegada al hospital pero aporta un acceso más precoz acceso a las medidas básicas de atención. Los porcentajes de fibrinolisis en las dos primeras horas y de angioplastias de rescate son bajos respecto a otras series

Objective. A description of the most relevant aspects in the initial management of the patient with acute coronary syndrome (ACS) during the year 2002. Design and scope. Prospective observational study. Eighty-four participating hospitals. Patients, variables and results. The 12,743 cases included in the ARIAM registry from January 1 to December 31, 2002 were selected. The variables analyzed have been grouped into 4 sections: general characteristics, acute myocardial infarction (AMI) diagnosis, prehospital care and fibrinolytic treatment. A total of 6,879 patients were admitted with the diagnosis of AMI, this diagnosis increasing by 16.8% on discharge. Mortality in the Intensive Care Unit (ICU) for patients with AMI was 8.4%. The number of cases that reached the hospital through the prehospital health care system was 5,368 (47%) with a median delay from onset of the symptoms of 155 minutes. A 59% of the elevated ST AMI received fibrinolytic treatment. A 6.7% of the fibrinolysis were performed in the first hour and 31.1% in the first 2 hours. Rescue angioplasty was only done in 144 cases (7%) of the patients with less than three reperfusion criteria. Conclusions. Decrease in AMI mortality regarding previous years may be related with the application of new diagnostic criteria. Prehospital care entails greater delay of arrival to the hospital but supplies earlier access to the basic care measures. The percentage of fibrinolysis in the first 2 hours and rescue angioplasties are low regarding other series

Vesículas hidatídicas en vena porta / Hydatidic (Echinococcus) vesicles in the portal vein

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