Comentario sobre el manuscrito titulado "Asociación de la puntuación activo-inotrópica vasoactiva y malos resultados en pacientes que se sometieron a injerto de derivación de la arteria coronaria: revisión sistemática y metanálisis" en la prensa Perfusión
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The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
The human circulatory system consists of blood, blood vessels that carry blood away from the heart, around the body, and back to the heart, and the heart itself, which acts as a central pump. The systemic circuit supplies blood to the whole body, the coronary circuit supplies blood to the heart, and the pulmonary circuit supplies blood flow between the heart and lungs.
Blood travels from the right atrium to the right ventricle of the heart through the tricuspid valve, then from the right...

