rheumatic heart disease prevention

rheumatic heart disease prevention
Hypertensive heart disease is the response of the heart to the increased demands caused by systemic hypertentsion. Pulmonary hypertension also causes heart disease and is also known as right-sided heart disease or hypertensive corpulmonale.

Systmic (left side) Hypertensive heart disease

The minimum criteria for the diagnosis of systemic hypertensive heart disease are the following: (1) left ventricular hypertrophy (usually concentric) in the absence of other cardiovascular disease, which may be induced and (2) a history or pathological evidence of hypertension. The Framingham heart study clearly show that even mild hypertension (high level only slightly above 140/90) mm Hg), if sufficiently prolonged to induce left ventricular hypertrophy. Approximately 25% of the U.S. population suffers from hypertension, at least this level. In hypertension, cardiac hypertrophy is an adaptive response to pressure overload may lead to myocardial dysfunction, cardiac dilation, heart failure and sudden death.

Compensated systemic hypertensive heart disease may be asymptomatic and suspected only in the appropriate clinical setting by ECG or echo cardio graphic data of the left ventricle enlargement. As already emphasized, other causes for such hypertrophy must be excluded. In many causes for ventricular hypertrophy must be excluded. In many patients, the systemic hypertensive heart disease for attention by the occurrence of atrial fibrillation (due to left atrial enlargement), or congestive heart failure with cardiac dilatation, or both. Depending on the severity of the ypertension the adequacy of the duration of the therapeutic and bases, the patient may be normal, and the longevity of unrelated causes, IHD may be gradual because of the effects of hypertension in potentiating coronary atherosclerosis, suffering from progressive renal injury or cerebrovascular accident, or possibly progressive heart failure or sudden cardiac death. There is considerable evidence that effective control of hypertension may prevent or regression of cardiac hypertrophy and the associated risks.

Pulmonary (Right-sided) Hypertensive heart disease (cor pulmonale)

Cor pulmonale, pulmonary hypertension, like heart disease is often called, is right ventricular hypertrophy, dilatation, and possibly failure secondary to pulmonary hypertension caused by diseases of the lung or lungs and vascular system is the right-sided counterpart of the left side (systemic) hypertensive heart disease. Although quite common, right ventricular dilation and thickening, either by congenital heart defects or disease through the left side of the heart and the resulting venous hypertension due to pulmonary postcapillary barrier to blood flow from this definition of cor pulmonale.

Based on the suddenness of the development of pulmonary hypertension, cor pulmonale can be acute or chronic cor pulmonale can be acute massive pulmonary embolism. Chronic cor pulmonale usually right ventricular hypertrophy and dilation) secondary to prolonged pressure overload due to obstruction of the pulmonary arteries or arterioles obliteration or compression of the septal capillaries (eg due to primary pulmonary hypertension, or emphysema)