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Ventricular hypertrophy (VH) is thickening of the walls of a ventricle (lower chamber) of the heart. [1] [better source needed] Although left ventricular hypertrophy (LVH) is more common, right ventricular hypertrophy (RVH), as well as concurrent hypertrophy of both ventricles can also occur.
Cardiomegaly is the state of an enlarged heart, and cardiac hypertrophy the thickening of the muscular wall of the heart, specifically the left ventricle, which pumps oxygenated blood to the aorta. Especially during an intensive workout, more blood and oxygen are required to the peripheral tissues of the arms and legs in highly trained athletes ...
Left ventricular hypertrophy with secondary repolarization abnormalities as seen on ECG Histopathology of (a) normal myocardium and (b) myocardial hypertrophy. Scale bar indicates 50 μm. Gross pathology of left ventricular hypertrophy. Left ventricle is at right in image, serially sectioned from apex to near base.
Genetic testing is not recommended for determining other causes of left ventricular hypertrophy (such as "athlete's heart", hypertension, and cardiac amyloidosis). HCM may be differentiated from other hypertrophy-causing conditions using clinical history and clinical testing.
Hypertrophy may be caused by mechanical signals (e.g., stretch) or trophic signals (e.g., growth factors). An example of physiologic hypertrophy is in skeletal muscle with sustained weight bearing exercise. An example of pathologic hypertrophy is in cardiac muscle as a result of hypertension. [5]
Right ventricular hypertrophy can be both a physiological and pathophysiological process. It becomes pathophysiological (damaging) when there is excessive hypertrophy. The pathophysiological process mainly occurs through aberrant signalling of the neuroendocrine hormones; angiotensin II, endothelin-1 and the catecholamines (e.g. noradrenaline).
What is heart failure? Heart failure is a chronic condition affecting about 6.2 million Americans. It occurs when the heart muscle is damaged—sometimes from something you can’t control, like ...
Hypertrophy It is distinguished from hyperplasia , in which the cells remain approximately the same size but increase in number. [ 2 ] Although hypertrophy and hyperplasia are two distinct processes, they frequently occur together, such as in the case of the hormonally induced proliferation and enlargement of the cells of the uterus during ...
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