Las recientes investigaciones apuntan cada día más, a lo indispensable que es para un paciente cardiópata entrar a un programa de este tipo.Įste artículo, expone una serie de descubrimientos que ayudan a entender por que es cada vez más necesario la individualización de estos programas en cada paciente. La rehabilitación cardiorrespiratoria no es una rama estática e inflexible dentro de la cardiología. NUEVOS AVANCES EN EL EJERCICIO CARDIOVASCULAR Y EL REMODELADO CARDIACO. The body has mechanisms to compensate for V/Q mismatch to a certain extent, but in severe or chronic cases, medical intervention may be needed. In both cases, the result is inefficient gas exchange, which can lead to symptoms such as shortness of breath and low levels of oxygen in the body. In this situation, the inhaled oxygen isn’t effectively transferred to the blood, and the carbon dioxide isn’t effectively removed. High V/Q mismatch (dead space): This occurs when areas of the lung are ventilated but not adequately perfused, as can happen in conditions like pulmonary embolism. Blood passes through these areas of the lung without being adequately oxygenated, which can lead to hypoxemia. Low V/Q mismatch (shunt): This occurs when areas of the lung are perfused but not adequately ventilated, such as in conditions like pneumonia or pulmonary edema. V/Q mismatch can happen in two main ways: Ventilation/perfusion (V/Q) mismatch describes disproportionate ventilation and blood flow in lung areas, impairing efficient gas exchange. Dead space is the volume of air not participating in gas exchange due to ventilation without perfusion. What is the Difference Between a Shunt, Dead Space, and V/Q Mismatch?Ī shunt refers to blood passing through the lungs without participating in gas exchange. Understanding these aspects is essential for appreciating the mechanisms underlying proper oxygenation and carbon dioxide removal in the body. This article provides an overview and explains these concepts, compares their characteristics and causes, and discusses their impact on respiratory health. The terms shunt, dead space, and ventilation/perfusion (V/Q) mismatch represent important concepts in pulmonary physiology, each indicating a distinct type of lung dysfunction that affects gas exchange. V/Q Mismatch: An Overview (2023)īy John Landry, BS, RRT | Updated: Jun 30, 2023

Mismatch vs. shunt vs. dead space