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6.
Am J Cardiol ; 112(1): 135-6, 2013 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-23570610

RESUMEN

Hypereosinophilic syndrome is characterized by unexplained hypereosinophilia involving different organ systems. The investigators present a patient diagnosed with hypereosinophilic syndrome in which cardiac magnetic resonance was pivotal in establishing the presence of cardiac involvement.


Asunto(s)
Cardiopatías/diagnóstico , Cardiopatías/etiología , Síndrome Hipereosinofílico/complicaciones , Imagen por Resonancia Magnética/métodos , Anciano , Medios de Contraste , Ecocardiografía , Femenino , Humanos
7.
Clin Res Cardiol ; 102(3): 171-8, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23064879

RESUMEN

It has been extensively demonstrated that an elevated heart rate is a modifiable, independent risk factor for cardiovascular events. A high heart rate increases myocardial oxygen consumption and reduces diastolic perfusion time. It can also increase ventricular diastolic pressures and induce ventricular arrhythmias. Critical care patients are prone to develop a stress induced cardiac impairment and consequently an increase in sympathetic tone. This in turn increases heart rate. In this setting, however, heart rate lowering might be difficult because the effects of inotropic drugs could be hindered by heart rate reducing drugs like beta-blockers. Ivabradine is a new selective antagonist of funny channels. It lowers heart rate, reducing the diastolic depolarization slope. Moreover, ivabradine is not active on sympathetic pathways, thus avoiding any interference with inotropic amines. We reviewed the literature available regarding heart rate control in critical care patients, focusing our interest on the use of ivabradine to assess the potential benefits of the drug in this particular setting.


Asunto(s)
Antiarrítmicos/uso terapéutico , Benzazepinas/uso terapéutico , Enfermedades Cardiovasculares/tratamiento farmacológico , Frecuencia Cardíaca/efectos de los fármacos , Corazón/inervación , Antiarrítmicos/efectos adversos , Benzazepinas/efectos adversos , Procedimientos Quirúrgicos Cardíacos/efectos adversos , Cardiotónicos/uso terapéutico , Enfermedades Cardiovasculares/fisiopatología , Enfermedad Crítica , Interacciones Farmacológicas , Humanos , Ivabradina , Contracción Miocárdica/efectos de los fármacos , Sistema Nervioso Simpático/efectos de los fármacos , Sistema Nervioso Simpático/fisiopatología , Resultado del Tratamiento , Función Ventricular/efectos de los fármacos
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