The confusion may be caused by not understanding the less known right side cardiomyopathy. When a person has cor pulmonade that causes a weakness of the right ventricle of the heart. The weakness is caused by high blood pressure in the vessels that deliver blood from the right ventricle to the lungs and as result there is right-sided cardiomyopathy (enlarged right ventricle). Chronic cor pulmonale results in right-sided congestive heart failure. Common causes of cor pulmonale include bronchiectasis, COPD, cystic fibrosis, pneumoconiosis, and primary pulmonary hypertension (conditions are respiratory defects).
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