A hole in the interventricular septum causes

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A hole in the interventricular septum causes blood to shunt from the left ventricle to the right ventricle. This is because the pressure in the left ventricle is typically higher than the pressure in the right ventricle, so blood flows from the area of higher pressure to the area of lower pressure. As a result, there can be overcirculation of blood to the lungs, which can lead to pulmonary hypertension and heart failure. Extreme cyanosis is not typically associated with this condition, as the shunted blood is oxygenated. A hole in the interatrial septum would cause blood to shunt from the left atrium to the right atrium, while a defect in the aortic or pulmonary valves would cause blood to flow backwards from the aorta or pulmonary artery, respectively.

A Hole in the Interventricular Septum Causes