Cardiomegaly Essay

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Cardiomegaly Cardiomegaly is a general term used to describe any condition that results in an enlarged heart. There are two types of cardiomegaly they are Dilative, and Hypertrophic. Dilative is when the heart can become enlarged due to dilation of the myocardium. Dilative is the most common form of non-ischemic cardiomyopathy. This occurs when the heart becomes weakened and enlarged, and congestive heart failure follow quickly. The signs and symptoms are left and right heart failure, the autopsy signs would include central hemorrhagic necrosis in the liver. Hypertrophic is the other one which is just as our skeletal muscles hypertrophy in response to increased demand, cardiac muscle undergoes hypertrophy when placed under a high workload for a prolonged period of time. Pathologic hypertrophy is a result of disease that place increased demand on the heart, such as chronic hypertension, valvular damage, and myocardial infarction. The left ventricular hypertrophy is the most common type of hypertrophic heart disease. The cause is hypertension, which increases the afterload on the left ventricle. Cardiomegaly is often detected on an anterior-posterior chest x-ray (AP CXR). The standard method for measuring heart size on AP CXR is known as the Danzer Method, and it involves measuring the distance from the midline of the spine to the most lateral aspect of the cardiac apex (distance B, in the image below), and adding this distance to that found from the same midline to the most lateral aspect of the right atrium (distance A). Cardiomegaly can also be diagnosed on CT scan. Cardiomegaly is treated with dioxin. The signs and symptoms of Cardiomegaly are breathlessness, swelling of the legs and ankles, tenderness in right upper quadrant, and Ascites.

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